Amy L. Read Thomas J. Porter 20230622 Vector Digital Data Set (Polygon) www.sciencebase.gov U.S. Geological Survey https://doi.org/10.5066/P9FHP6XX Observations of irrigated agricultural land within the Sacramento Valley Groundwater Basin in Arizona. Crops were verified in situ once in 2022 on May 31st; based on digitized field boundaries. Field boundaries were digitized from U.S. Department of Agriculture, National Agricultural Imagery Program County Mosaic 2021 imagery for Arizona and supplemented with Landsat and Sentinel2 imagery collections accessed via the Sentinel Hub, Sentinel Playground (https://apps.sentinel-hub.com/sentinel-playground). Satellite images were also used to identify the length of the growing season and crop condition. Water withdrawals were calculated using the modified Blaney-Criddle model of calculating consumptive use (U.S. Bureau of Reclamation, 1992 appendix A) using crop coefficients from Doorenbos and Pruitt (1975), the number of acres with active crops, crop condition, and irrigation system efficiency. The withdrawal equation was modified from "Water withdrawals for irrigation, municipal, mining, thermoelectric-power, and drainage uses in Arizona outside of active management areas, 1991-2000" (Tadayon, 2005) to account for variations in water application. Data were collected to understand irrigated land use and to estimate crop irrigation withdrawals within the Arizona Department of Water Resources specified groundwater basin. Filename: SV_2022_est_FV_wthdrwls_crop; field verified. 20220101 20221231 ground condition Complete None planned -114.2298 -114.1066 35.1796 34.7431 USGS Thesaurus irrigation water use groundwater Alexandria Digital Library Feature Type Thesaurus agricultural sites USGS Metadata Identifier USGS:6483b7b6d34ef77fcafce030 None Sacramento Valley Groundwater Basin Common geographic areas Arizona Mohave None. Please see 'Distribution Information' for details. Data not to be used for legal boundaries, for use as geographical information only. Users are advised to read the dataset's metadata thoroughly to understand appropriate use and data limitations. U.S. Geological Survey, Southwest Region Amy L Read Physical Scientist mailing

520 North Park Avenue

Tucson AZ 85719 US 520-670-3347 aread@usgs.gov Compiled and maintained by the U.S. Geological Survey, Arizona Water Science Center in cooperation with the Arizona Department of Water Resources. Environment as of Metadata Creation: Microsoft [Unknown] Version 6.2 (Build 9200) ; Esri ArcGIS 10.7.1 (Build 11595) Service Pack N/A (Build N/A) Saeid Tadayon 2005 publication n/a US Geological Survey https://doi.org/10.3133/sir20045293 U.S. Bureau of Reclamation 199207 publication n/a U.S. Bureau of Reclamation Appendix A, 23 p Jan Doorenbos William. O. Pruitt 1975 publication Irrigation and drainage paper 24 Rome Food and Agriculture Organization of the United Nations p.195 https://www.nrc.gov/docs/ML1821/ML18215A282.pdf Values are observed in situ. Dataset was compared to field maps for accuracy. Topology tests were done to identify and correct overlapping polygons. Dataset only represents withdrawal, crop type, irrigation system, growth characteristics, and verification type for agricultural fields in the specified groundwater basin. Data are considered complete for the information presented, as described in the abstract. Users are advised to read the metadata record carefully for additional details. No formal positional accuracy tests were conducted No formal positional accuracy tests were conducted PRISM Climate Group, Oregon State University 20230602 raster digital data Corvallis, OR, USA PRISM Climate Group at Oregon State University 4km resolution, recent years http://prism.oregonstate.edu digital 20220101 20221231 ground condition Precipitation Weather data for modified Blaney-Criddle calculation. PRISM Climate Group, Oregon State University 20230602 raster digital data Corvallis, OR, USA PRISM Climate Group at Oregon State University 4km resolution, recent years http://prism.oregonstate.edu digital 20220101 20221231 ground condition Temperature Weather data for modified Blaney-Criddle calculation. U.S. Department of Agriculture, Farm Service Agency- Aerial Photography Field Office 20220102 remote-sensing image n/a U.S. Department of Agriculture Theme: Ortho NAIP Description: National Agricultural Imagery Program County Mosaic Year: 2021 Type: az_n Location: all counties https://datagateway.nrcs.usda.gov/GDGHome_DirectDownLoad.aspx digital 20211013 20220102 ground condition NAIP base imagery for digitizing polygons European Space Agency U.S. Geological Survey Sinergise Ltd. 20221231 remote-sensing image https://apps.sentinel-hub.com/sentinel-playground Sinergise Ltd. Sensors Sentinel 2 MSI and Landsat 8 OLI https://apps.sentinel-hub.com/sentinel-playground digital 202201 202212 ground condition SentinelPlay Observations of crop type, growing season, condition, and irrigation system characteristics. Create field boundaries 1) Field boundaries were digitized from aerial and satellite imagery. NAIP SentinelPlay 20220301 Record agricultural fields attributes. Observed agricultural fields in situ to record: 1) crop type 2) irrigation system type 3) crop condition. 20220531 Review supplemental data sources to record agricultural field attributes not obtained though in situ observations. 1) Satellite imagery was reviewed to determine crop type for inaccessible fields. 1a) A person compares the inaccessible fields to fields with a known crop type for all months in a growing season using the green, red, and near infrared bands of the satellite imagery. 1b) Additional review using the red, near infrared, and shortwave infrared bands of the satellite imagery further narrows the crops to the known crop type. 1c) Once a field with the same hue and saturation of the unknown crop is found on the satellite image. The person assigns the known crop type. 2) Aerial or satellite imagery was reviewed to determine irrigation system for inaccessible fields. 2a) A person looks for at 1 meter or finer resolution aerial imagery for the infrastructure of the irrigation system. 2b) If no recent aerial imagery is available the person uses the blue, red, and green, followed by the red, near infrared, and shortwave infrared bands of the satellite imagery to look for characteristics of irrigation such as water flow patterns and wetted areas. 2c) The person reviewing the satellite imagery assigns an irrigation system based on the observed characteristics, a reviewer must be experienced to assign irrigation system from satellite imagery. 3) Satellite imagery was reviewed to determine crop condition as needed. 3a) A person compares a field of good condition to the field with condition in question using the red, near infrared, and shortwave infrared bands of the satellite imagery. 3b) Additional review using the green, red, and near infrared bands of the satellite imagery allows further understanding of the crop's condition. 3c) The person reviewing the satellite imagery reduces the withdrawal with a condition factor based on their experience and the difference in hue and saturation between the crop of good condition and the crop of questionable condition. 4) Satellite imagery was reviewed to determine crop growth as needed. 4a) A person compares a field of full growing season to the field with growth time in question using the red, near infrared, and shortwave infrared bands of the satellite imagery. 4b) Additional review using the green, red, and near infrared bands of the satellite imagery may be needed to determine the crop's growing season. 4c) The person reviewing the satellite imagery adjusts the growth factor based on the growing season provided in the next process step by the modified Blaney-Criddle model. 5) As needed, obtain additional information about agricultural fields through research such as news articles or business supplied information. SentinelPlay NAIP 20230609 Calculate withdrawals 1) Consumptive use was calculated for each crop type using the modified Blaney-Criddle model. 2) Consumptive use by field was calculated by multiplying cropped acres by the crop consumptive use. Consumptive use was reduced if the growing season was shorter than standard as observed via satellite images for the crop type or if crop was observed in situ or via satellite to be lacking adequate irrigation by multiplying by the crop condition and the crop growth fractions. 3) Withdrawals were calculated by dividing the field consumptive use by the irrigation system efficiency. Temperature Precipitation 20230608 Vector G-polygon 50 Universal Transverse Mercator 12 0.9996 -111.0 0.0 500000.0 0.0 coordinate pair 0.6096 0.6096 meters NAD_1983_2011 GRS_1980 6378137.0 298.257222101 SV_2022_est_FV_wthdrwls_crop attribute table Table containing attribute information associated with the dataset. The dataset attributes include information about field location, field verification status, crop type, consumptive use, crop condition, and withdrawals. U.S. Geological Survey FID Internal feature number. (Shapefile only) ESRI Sequential unique whole numbers that are automatically generated. (Shapefile attribute only, not included in the csv file.) Shape Feature geometry. (Shapefile only) ESRI Coordinates defining the features. (Shapefile attribute only, not included in the csv file.) Mods Modifications made to the agricultural field polygon boundary lines. It is at the author's discretion when to modify or remove fields. U.S. Geological Survey CREATE New field boundary created from in situ, satellite, or aerial imagery observations. U.S. Geological Survey JOIN Combined two or more previously existing fields. Fields may be joined because of changes to crop type, irrigation type, or other farming practices. Fields may also be reshaped during the join process. U.S. Geological Survey RELOCATE Move fields in any direction within the same general area. Fields may be moved once satellite or aerial imagery for new fields becomes available. U.S. Geological Survey REMOVE Fields to be removed from the active database. Fields may be removed because no agricultural crops started on cleared land, fields have been idle for several years, fields were reclaimed by nature, land was repurposed for non-agricultural crop use. U.S. Geological Survey RESHAPE Change the field boundary shape or size. Fields may be reshaped if the farming area is expanded or contracted, or if the boundaries of the field are redefined. U.S. Geological Survey SPLIT The division of one field into two or more fields. Fields may be split because of changes to crop type, irrigation type, or other farming practices. Fields may also be reshaped during the split process. U.S. Geological Survey UNCHANGED No changes to the field boundary from the previous year. U.S. Geological Survey HIST Historic: Maintain long term idle fields or fields with a changed purpose for historical reasons. Not part of the active database. U.S. Geological Survey Year Calendar year of data. U.S. Geological Survey 2022 Calendar year of data. U.S. Geological Survey Field_ID Alpha-numeric field identifier. Note: each field can be composed of multiple polygons. U.S. Geological Survey Author created unique alpha-numeric identifier, XX-0000abc, to identify the basin (XX), number of the field (0000), the split history (abc), and the join history [ab] or [##] of a field. Fields that are split are given a lower-case letter, for example XX-0079 is split into XX-0079a and XX-0079b. Each new letter represents a new split, for example XX-0079a is split into XX-0079aa, XX-0079ab, and XX-0079ac. When fields of the same number are combined the letters will be placed in square brackets, for example XX-0079aa and XX-0079ab are combined into XX-0079a[ab] or XX-0079a and XX-0079b are combined into XX-0079[ab]. When fields of different numbers are combined the field number, excluding zeros, will be placed in square brackets, for example XX-0012 and XX-0013 are combined into XX-0012[13] or XX-0012a and XX-0013b are combined into XX-0012a[13b]. Note: Basin abbreviations (XX) can be from two to six letters with an additional hyphen separating the basin from the subbasin (XXX-XXX). Lower-case letters do not provide a direct 1:1 area for splits, only a general matching. It is at the author's discretion when to split and join fields. County Indicates the county where the agricultural field is located. Arizona county boundaries are from the Arizona State Land Department's [AZ Boundaries] polygonal dataset. U.S. Geological Survey AZ015 Mohave County, Arizona U.S. Census Bureau ADWR_BnSbn Indicates the Arizona Department of Water Resources groundwater basin and subbasin where fields are located. U.S. Geological Survey SAC Sacramento Valley Groundwater Basin Arizona Department of Water Resources CU_zone Geographical area that delineates the weather and latitude information to be used in the modified Blaney-Criddle model for calculation of consumptive use (CU) by crop type. U.S. Geological Survey SV Agricultural fields within the Arizona Department of Water Resources Sacramento Valley Groundwater Basin near the City of Golden Valley. U.S. Geological Survey H2O_type Type of water source used to irrigate agricultural crops. U.S. Geological Survey GW Groundwater: Water applied to crops from a groundwater source defined as (1) water that flows or seeps downward and saturates soil or rock, supplying springs and wells. The upper surface of the saturated zone is called the water table. (2) Water stored underground in rock crevices and in the pores of geologic materials that make up the Earth's crust. U.S. Geological Survey SW Surface water: Water applied to crops from a surface water source defined as water that is on the Earth's surface, such as in a stream, river, lake, or reservoir. U.S. Geological Survey MIX Mixed: Water applied to crops from a combination of groundwater and surface water sources defined as: Groundwater--(1) water that flows or seeps downward and saturates soil or rock, supplying springs and wells. The upper surface of the saturated zone is called the water table. (2) Water stored underground in rock crevices and in the pores of geologic materials that make up the Earth's crust. Surface water--Water that is on the Earth's surface, such as in a stream, river, lake, or reservoir. U.S. Geological Survey RCW Reclaimed wastewater: Water applied to crops from a reclaimed wastewater source defined as wastewater-treatment plant effluent that has been diverted for beneficial uses such as irrigation, industry, or thermoelectric cooling instead of being released to a natural waterway or aquifer. U.S. Geological Survey UNK Unknown water source: Water applied to crops from an unknown water source. U.S. Geological Survey Acres Estimated field size based on digitization of field boundaries from aerial images and confirmation of boundaries during in situ observations. The Acres attribute is calculated by dividing the Shape_Area attribute by the conversion factor 4047; to convert from square meters to acres. U.S. Geological Survey 1 659 acres 1 Conveyance In situ or imagery observation of method used to get water from source to field irrigation system; broadly classified. U.S. Geological Survey DAMAGED Canal-Damaged lining: Water withdrawn from the source directed into lined canals that are damaged; canals can be lined with concrete, plastic, brick, etc. and contain missing lining, cracks, or holes allowing water to contact the soil surface below the lining. U.S. Geological Survey LINED Canal-Lined: Water withdrawn from the source directed into lined irrigation canals and/or irrigation ponds; lining can be concrete, plastic, brick, etc. and separates the water from the soil below the lining. U.S. Geological Survey UNLINED Canal-Unlined: Water withdrawn from the source directed into unlined earthen irrigation canals and/or unlined earthen irrigation ponds; water is in direct contact with the soil surface. U.S. Geological Survey PIPE Pipe: Water withdrawn from the source directed into a hard or flexible pipe. U.S. Geological Survey PUMP Pump: Water withdrawn from the source directly into the irrigation system. U.S. Geological Survey MIX Mixed: Water withdrawn from the source directed through mixed conveyance systems; any combination closed (pump or pipe) or open (lined, unlined, or damaged). U.S. Geological Survey NONE None: No functioning water conveyance system in place. U.S. Geological Survey Irrig_Sys In situ or imagery observation of irrigation system type; broadly classified. U.S. Geological Survey FLD Flood irrigation system, a surge of water is delivered from one side of the field and allowed to pond as it crosses the field seeping into the soil slowly. U.S. Geological Survey FLD-BRD Border flood irrigation system, a surge of water is delivered from one side of field through gates or ditches. The field is divided by levees that hold the water as it crosses the field and ponds; allowing the water to seep slowly into the soil. U.S. Geological Survey FLD-FUR Furrow flood irrigation system, water is delivered from one side of field through siphons or other small openings into furrows, the narrow low laying areas between the crop rows. The water is allowed to fill the furrow as it crosses the field seeping into the soil slowly. U.S. Geological Survey MIC Micro-irrigation system, highly efficient irrigation system that delivers water directly to the crop root zone. U.S. Geological Survey MIC-BUB Bubbler micro-irrigation system, water is delivered through tubes with emitters that allows water to spray in an umbrella pattern close to the ground surface and the crop root zone. U.S. Geological Survey MIC-DRP Drip micro-irrigation system, water is delivered through tubes with emitters or holes that allows water to drip at the crop root zone. Drip systems can be above or below ground level. U.S. Geological Survey MIC-SPR Sprinkler micro-irrigation system, water is sprayed on the crop near ground level. The throw radius of a micro sprinkler is smaller than a standard sprinkler; micro sprinklers are spaced closely to cover the irrigation area. U.S. Geological Survey SPR Sprinkler irrigation system, water is sprayed on the crop from above. U.S. Geological Survey SPR-JET Jet sprinkler irrigation system, water is sprayed on the crop from above by an impact sprinkler with a very long throw radius. U.S. Geological Survey SPR-OVH Center pivot or lateral move sprinkler irrigation system, water is sprayed above the crop or between crop rows by nozzles hanging from an overhead pipe systems that pivot around a central point or move laterally across the field. The pivot point is often located at the center of a field. U.S. Geological Survey SPR-OVH-BUB Center pivot or lateral move sprinkler irrigation system, water is streamed between crop rows by nozzles hanging from an overhead pipe systems that pivot around a central point or move laterally across the field. The pivot point is often located at the center of a field. U.S. Geological Survey SPR-SET Set sprinkler irrigation system, water is sprayed on the crop from above by impact sprinklers with a medium to long throw distance; the pipe and sprinkler system is stationary on the field. U.S. Geological Survey SPR-SR Side roll sprinkler system, water is sprayed on the crop from above by impact sprinklers with a long to very long throw distance; the pipe and sprinkler system can be moved laterally across the field. U.S. Geological Survey MLT-SPR_FLD Has both a sprinkler and flood irrigation system. U.S. Geological Survey MLT-SPR_MIC Has both a sprinkler and drip irrigation system. U.S. Geological Survey NONE No irrigation system is functioning on the field. U.S. Geological Survey NV Not verified: Irrigation system cannot be observed or determined in situ or with remote sensing imagery; the irrigation system type could not be verified for the current year. U.S. Geological Survey Irrig_Eff The fraction of water from the withdrawal that reaches the crop for irrigation. Irrigation system efficiency is estimated based on location, type of system, water delivery method, and other uses for each field. U.S. Geological Survey 0.75 1.0 unitless 0.01 Crop1 First crop grown on the agricultural field during the calendar year. Crop identifications are based on in situ observation and supplemented by satellite imagery observation. U.S. Geological Survey ALF Alfalfa, may have dormancy periods or multiple cuttings (harvest). U.S. Geological Survey CIT Citrus: Orange, Lemon, Lime, Tangerine, and other citrus fruits that may have a dormancy period. U.S. Geological Survey COT Cotton U.S. Geological Survey CRNS Corn (Spring): Corn planted in the late winter or early spring and harvested in the summer U.S. Geological Survey CRNU Corn (Summer): Corn planted in the summer and harvested in the fall U.S. Geological Survey CRUW Cruciferous Vegetable (Winter): Broccoli, Cauliflower, Cabbage, Bok choy, Greens, Kale that grow during the winter U.S. Geological Survey CRUF Cruciferous Vegetable (Fall): Broccoli, Cauliflower, Cabbage, Bok choy, Greens, Kale that grow during the fall U.S. Geological Survey CV Cover: Grains or other crops not grown for harvest, but for field health. U.S. Geological Survey DEST Desert Plant: Yucca, Cactus, Succulents, and other desert plants that may have a dormancy period. U.S. Geological Survey GRASS Grass: Bermuda, Klein, Timothy, may have dormancy periods or multiple cuttings (harvest). U.S. Geological Survey GUA Guayule. Has a dormancy period. U.S. Geological Survey IDLE Idle: A field is idle when one of the following occurs: No crop has been planted in the previous two years, large portions of the field are taken over by native vegetation, the irrigation system is in disrepair, or the irrigation system is removed. Idle fields can return to active cultivation in the future. U.S. Geological Survey JOJO Jojoba. May have a dormancy period. U.S. Geological Survey LEG Legume: Beans, Garbanzo, Peas, Peanuts U.S. Geological Survey LW Lettuce (Winter): Head Lettuce, Leaf Lettuce, Spinach, Other Lettuce that grow during the winter and early spring U.S. Geological Survey LS Lettuce (Spring): Head Lettuce, Leaf Lettuce, Spinach, Other Lettuce that grow during the spring and early summer U.S. Geological Survey LF Lettuce (Fall): Head Lettuce, Leaf Lettuce, Spinach, Other Lettuce that grow during the late summer and fall U.S. Geological Survey MELS Melon (Spring): Watermelon, Cantaloupe, Honeydew, and other melons planted during the winter or early spring and harvested in the summer U.S. Geological Survey MELU Melon (Summer): Pumpkin, Honeydew, Cantaloupe, and other melons planted during the summer and harvested in the late summer to early fall U.S. Geological Survey NC No Crop: No crop is present, but a crop has been observed in the past and irrigation system and field are well maintained. U.S. Geological Survey NSRY Nursery: Outdoor trees for sale that may have a dormancy period. U.S. Geological Survey ORCHY Orchard (Young): Non-producing trees (generally less than five years old) that may have a dormancy period. U.S. Geological Survey ORCHM Orchard (Mature): Producing trees (Generally five years old or older) that may have a dormancy period. U.S. Geological Survey OTHCRP Other Crop: Miscellaneous crop, there is no matching crop in the enumerated values (for example Roses). U.S. Geological Survey OTHGRNS Other Grain (Spring): Sorghum, Milo planted in the spring and harvested in the summer U.S. Geological Survey OTHGRNU Other Grain (Summer): Sorghum, Milo planted in the summer and harvested in the fall U.S. Geological Survey PAST Pasture: A mixture of alfalfa, grass, grain, or other hay that may have dormancy periods or multiple cuttings (harvest). U.S. Geological Survey ROOT Root Vegetable: Beets, Parsnip, Turnip, Sugar Beets U.S. Geological Survey SG Small Grain: Oats, Rye, Barley, Millet, Wheat that grows in the winter and spring U.S. Geological Survey SGF Small Grain (Fall): Oats, Rye, Barley, Millet, Wheat planted in late summer or early fall U.S. Geological Survey SMVEGW Small Vegetable (Winter): Carrots, Cilantro, Celery, Garlic, Onions, Okra, Radishes that grow during the winter and early spring U.S. Geological Survey SMVEGS Small Vegetable (Spring): Garlic, Onions, Okra, Radishes that grow during spring and early summer U.S. Geological Survey SMVEGF Small Vegetable (Fall): Carrots, Cilantro, Celery, Garlic, Onions, Radishes that grow during the late summer and fall U.S. Geological Survey SOD Sod: Grass trimmed short, grown to be sold for landscaping and may have dormancy periods or multiple cuttings (harvest). U.S. Geological Survey SOL Solanales: Tomato, Potato, Eggplant, Peppers U.S. Geological Survey SUD Sudan: Sudangrass and Sudangrass hybrids, may have dormancy periods or multiple cuttings (harvest). U.S. Geological Survey VEGW Vegetable (Winter): Unable to specifically classify vegetable growing during the winter U.S. Geological Survey VEGS Vegetable (Fall): Unable to specifically classify vegetable growing during the fall U.S. Geological Survey VEGF Vegetable (Spring): Unable to specifically classify vegetable growing during the spring U.S. Geological Survey VINE Vineyard grapes. Has a dormancy period. U.S. Geological Survey NV Not Verified: Crop type or irrigation status could not be verified for the current year. U.S. Geological Survey Irrig_CU1 Estimated consumptive use for the growing season irrigation requirement of the first crop type grown during the calendar year. Calculated using the modified Blaney-Criddle method. Effective precipitation* is subtracted from gross consumptive use to get net consumptive use or irrigation requirement. *Effective precipitation is the precipitation that falls during the growing season that contributes to plant growth by staying in the root zone were the plant can utilize the precipitation for growth. U.S. Geological Survey 0.0 2.65 feet per crop growing season 0.01 Plant_CU1 Estimated consumptive use for the growing season plant requirement of the first crop type grown during the calendar year. Calculated using the modified Blaney-Criddle method. Effective precipitation* has not been subtracted from gross consumptive use and indicates the plant's water requirement to grow. *Effective precipitation is the precipitation that falls during the growing season that contributes to plant growth by staying in the root zone were the plant can utilize the precipitation for growth. U.S. Geological Survey 0.0 3.04 feet per crop growing season 0.01 Crop1Cond Observation of crop condition for the first crop grown during the calendar year. Using a fraction to reduce the full withdrawal requirement crop condition accounts for two conditions: 1) the level of irrigation observed relative to the expected level of irrigation for the crop being grown and the specific time in the growing season. For example, irrigation is expected to be reduced before the harvest of small grain or during the drying period after alfalfa is cut, 2) the areal extent of the agricultural field covered by the crop being grown so the agricultural field polygon does not need to be split. For example, on a 160-acre agricultural field alfalfa is grown on 100 acres from February through April, 40 acres from May through August, and 160 acres from September through October; on average 54 percent of the field is irrigated; the withdrawal is reduced by 46 percent. Irrigation level is based on the health of the crop observed in situ and on satellite imagery. Note: crop condition is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey 0.0 1.0 unitless 0.01 Crp1Grwth Unique growth time of the first crop on each field during the calendar year as the fraction of the full growing season's consumptive use, used during crop growth. The fraction is based on specific crop and location, for example: alfalfa's growing season in county x is from February to December. Alfalfa was grown on field y in county x from March to September. The alfalfa grown in county x on field y required 0.81 of the full season consumptive use. U.S. Geological Survey 0.0 1.0 unitless 0.01 I_Wdrwl1 Estimated water withdrawn for the irrigation requirement of the first crop grown on a single agricultural field during a calendar year. Calculated as the product of the acres, irrigation consumptive use, crop condition, and crop growth divided by the irrigation system efficiency. Example: I_Wdrwl1 = ((([Irrig_CU1] * [Acres]) * [Crop1Cond]) * [Crp1Grwth]) / [Irrig_Eff] U.S. Geological Survey 0.0 166.94 acre-feet per crop growing season 0.01 P_Wdrwl1 Estimated water withdrawn for the plant requirement of the first crop grown on a single agricultural field during a calendar year. Calculated as the product of the acres, plant consumptive use, crop condition, and crop growth divided by the irrigation system efficiency. Example: P_Wdrwl1 = ((([Plant_CU1] * [Acres]) * [Crop1Cond]) * [Crp1Grwth]) / [Irrig_Eff] U.S. Geological Survey 0.0 185.57 acre-feet per crop growing season 0.01 Total_IA Estimated irrigated acres per year. Sum of acres used to grow each crop during the year. For example, oats grew on 5 acres followed by corn, irrigated acres are 10, field acres are 5. U.S. Geological Survey 0 87 acre per year 1 I_WdrwlT Calculation of irrigation withdrawals for the calendar year. Total estimated water withdrawn for the irrigation requirement of all crops grown on a single agricultural field during a calendar year. Calculated as the sum of the irrigation withdrawals for each crop grown. Example: I_WdrwlT = [I_Wdrwl1] + [I_Wdrwl2] + [I_Wdrwl3] + [I_Wdrwl4] U.S. Geological Survey 0 167 acre-feet per year 1 P_WdrwlT Calculation of plant withdrawals for the calendar year. Total estimated water withdrawn for the plant requirement of all crops grown on a single agricultural field during a calendar year. Calculated as the sum of the plant withdrawals for each crop grown. Example: P_WdrwlT = [P_Wdrwl1] + [P_Wdrwl2] + [P_Wdrwl3] + [P_Wdrwl4] U.S. Geological Survey 0 186 acre-feet per year 1 Notes Notes relevant to observations made about the crop type, irrigation system, or field conditions. U.S. Geological Survey Freeform notes made by the observer and reviewer from observations of each field. Notes in the 'Notes' attribute are assigned a leading abbreviation to indicate the context of the notes. FN indicates field notes. SN indicates satellite notes. RN indicates office research notes. Empty cells indicate there are no notes about the agricultural field. JAN_CROP Crop grown on the agricultural field during the month. Crop identifications are based on in situ observation and supplemented by satellite imagery observation. U.S. Geological Survey ALF Alfalfa, may have dormancy periods or multiple cuttings (harvest). U.S. Geological Survey CIT Citrus: Orange, Lemon, Lime, Tangerine, and other citrus fruits that may have a dormancy period. U.S. Geological Survey COT Cotton U.S. Geological Survey CRNS Corn (Spring): Corn planted in the late winter or early spring and harvested in the summer U.S. Geological Survey CRNU Corn (Summer): Corn planted in the summer and harvested in the fall U.S. Geological Survey CRUW Cruciferous Vegetable (Winter): Broccoli, Cauliflower, Cabbage, Bok choy, Greens, Kale that grow during the winter U.S. Geological Survey CRUF Cruciferous Vegetable (Fall): Broccoli, Cauliflower, Cabbage, Bok choy, Greens, Kale that grow during the fall U.S. Geological Survey CV Cover: Grains or other crops not grown for harvest, but for field health. U.S. Geological Survey DEST Desert Plant: Yucca, Cactus, Succulents, and other desert plants that may have a dormancy period. U.S. Geological Survey GRASS Grass: Bermuda, Klein, Timothy, may have dormancy periods or multiple cuttings (harvest). U.S. Geological Survey GUA Guayule. Has a dormancy period. U.S. Geological Survey IDLE Idle: A field is idle when one of the following occurs: No crop has been planted in the previous two years, large portions of the field are taken over by native vegetation, the irrigation system is in disrepair, or the irrigation system is removed. Idle fields can return to active cultivation in the future. U.S. Geological Survey JOJO Jojoba. May have a dormancy period. U.S. Geological Survey LEG Legume: Beans, Garbanzo, Peas, Peanuts U.S. Geological Survey LW Lettuce (Winter): Head Lettuce, Leaf Lettuce, Spinach, Other Lettuce that grow during the winter and early spring U.S. Geological Survey LS Lettuce (Spring): Head Lettuce, Leaf Lettuce, Spinach, Other Lettuce that grow during the spring and early summer U.S. Geological Survey LF Lettuce (Fall): Head Lettuce, Leaf Lettuce, Spinach, Other Lettuce that grow during the late summer and fall U.S. Geological Survey MELS Melon (Spring): Watermelon, Cantaloupe, Honeydew, and other melons planted during the winter or early spring and harvested in the summer U.S. Geological Survey MELU Melon (Summer): Pumpkin, Honeydew, Cantaloupe, and other melons planted during the summer and harvested in the late summer to early fall U.S. Geological Survey NC No Crop: No crop is present, but a crop has been observed in the past and irrigation system and field are well maintained. U.S. Geological Survey NSRY Nursery: Outdoor trees for sale that may have a dormancy period. U.S. Geological Survey ORCHY Orchard (Young): Non-producing trees (generally less than five years old) that may have a dormancy period. U.S. Geological Survey ORCHM Orchard (Mature): Producing trees (Generally five years old or older) that may have a dormancy period. U.S. Geological Survey OTHCRP Other Crop: Miscellaneous crop, there is no matching crop in the enumerated values (for example Roses). U.S. Geological Survey OTHGRNS Other Grain (Spring): Sorghum, Milo planted in the spring and harvested in the summer U.S. Geological Survey OTHGRNU Other Grain (Summer): Sorghum, Milo planted in the summer and harvested in the fall U.S. Geological Survey PAST Pasture: A mixture of alfalfa, grass, grain, or other hay that may have dormancy periods or multiple cuttings (harvest). U.S. Geological Survey ROOT Root Vegetable: Beets, Parsnip, Turnip, Sugar Beets U.S. Geological Survey SG Small Grain: Oats, Rye, Barley, Millet, Wheat that grows in the winter and spring U.S. Geological Survey SGF Small Grain (Fall): Oats, Rye, Barley, Millet, Wheat planted in late summer or early fall U.S. Geological Survey SMVEGW Small Vegetable (Winter): Carrots, Cilantro, Celery, Garlic, Onions, Okra, Radishes that grow during the winter and early spring U.S. Geological Survey SMVEGS Small Vegetable (Spring): Garlic, Onions, Okra, Radishes that grow during spring and early summer U.S. Geological Survey SMVEGF Small Vegetable (Fall): Carrots, Cilantro, Celery, Garlic, Onions, Radishes that grow during the late summer and fall U.S. Geological Survey SOD Sod: Grass trimmed short, grown to be sold for landscaping and may have dormancy periods or multiple cuttings (harvest). U.S. Geological Survey SOL Solanales: Tomato, Potato, Eggplant, Peppers U.S. Geological Survey SUD Sudan: Sudangrass and Sudangrass hybrids, may have dormancy periods or multiple cuttings (harvest). U.S. Geological Survey VEGW Vegetable (Winter): Unable to specifically classify vegetable growing during the winter U.S. Geological Survey VEGS Vegetable (Spring): Unable to specifically classify vegetable growing during the spring U.S. Geological Survey VEGS Vegetable (Spring): Unable to specifically classify vegetable growing during the spring U.S. Geological Survey VEGF Vegetable (Fall): Unable to specifically classify vegetable growing during the fall U.S. Geological Survey VINE Vineyard grapes. Has a dormancy period. U.S. Geological Survey NV Not Verified: Crop type or irrigation status could not be verified for the current year. U.S. Geological Survey JAN_AUX Additional details about the agricultural field or the crop growing on the agricultural field during the month, such as growth stage or orchard type. Note: growth stage is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey PREP Prep: Field is being prepared for possible future planting U.S. Geological Survey NEW New: Planted recently, small with lots of bare ground still showing U.S. Geological Survey CONT Continued: Plant filling in field and getting larger, but not ready to harvest. U.S. Geological Survey HVST Harvest: Plant is fully grown; expected to be harvested in next week or so, in the process of harvesting, crop residue from a recent harvest, or a cover crop cutting. U.S. Geological Survey SEED Seed: Plant has been allowed to grow to produce seeds for future planting, growth is larger than expected for harvest ready, seed heads present. U.S. Geological Survey DORM Dormant: Perennial crop is alive, but not growing due to weather, water supply or other environmental conditions. U.S. Geological Survey VOL Volunteer vegetation: An agricultural crop not planted for the current season, weeds, or native vegetation growing on the field. Volunteer vegetation can be interspersed with an active crop or on a non-active field. U.S. Geological Survey NUT Nut: Orchard that has nut trees; almond, walnut, pistachio, pecan U.S. Geological Survey PALM Palm: Orchard that has palm or date trees U.S. Geological Survey FRUIT Fruit: Orchard that has fruit trees (peach, pear, apple, pomegranate); fruit bearing citrus trees; or fruit bearing grapevines. U.S. Geological Survey JAN_COND Observation of crop condition for the crop grown during the month. Using a fraction to reduce the full withdrawal requirement crop condition accounts for two conditions: 1) the level of irrigation observed relative to the expected level of irrigation for the crop being grown and the specific time in the growing season. For example, irrigation is expected to be reduced before the harvest of small grain or during the drying period after alfalfa is cut, 2) the areal extent of the agricultural field covered by the crop being grown so the agricultural field polygon does not need to be split. For example, on a 160-acre agricultural field alfalfa is grown on 100 acres from February through April, 40 acres from May through August, and 160 acres from September through October; on average 54 percent of the field is irrigated; the withdrawal is reduced by 46 percent. Irrigation level is based on the health of the crop observed in situ and on satellite imagery. Note: crop condition is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey 0.0 1.0 unitless 0.01 JAN_VTYP Type of verification used to identify the agricultural crop growing on the field during the month. U.S. Geological Survey WK1 Field Visit-Wk1: Field verified in situ; crop type identified by a person near the field during one of the first through the seventh days of the month. U.S. Geological Survey WK2 Field Visit-Wk2: Field verified in situ; crop type identified by a person near the field during one of the eighth through the fourteenth days of the month. U.S. Geological Survey WK3 Field Visit-Wk3: Field verified in situ; crop type identified by a person near the field during one of the fifteenth through the twenty-first days of the month. U.S. Geological Survey WK4 Field Visit-Wk4: Field verified in situ; crop type identified by a person near the field during one of the twenty-second through the twenty-eighth days of the month. U.S. Geological Survey WK5 Field Visit-Wk5: Field verified in situ; crop type identified by a person near the field during one of the twenty-ninth through the thirty-first days of the month. U.S. Geological Survey SAT Satellite: Satellite imagery was used by a person to determine crop type and irrigation status as compared to other fields within the same basin. U.S. Geological Survey FV_SAT Field Visit and Satellite: Information from field verification and satellite review are used to determine crop type, irrigation system, and growing season length. Reasons both sources are needed may be related to field access or timing of field visit. U.S. Geological Survey AER Aerial Imagery: Aerial imagery was used by a person to determine field boundary, crop type, and irrigation type. U.S. Geological Survey AER_SAT Aerial and Satellite Imagery: Aerial imagery was combined with satellite imagery by a person to determine field boundary, crop type, irrigation system type, and irrigation status. U.S. Geological Survey CDL Cropland Data Layer: Crop type as determined by the US Department of Agriculture, Cropland Data Layer. Information about the CDL can be found at https://www.nass.usda.gov/Research_and_Science/Cropland/SARS1a.php U.S. Geological Survey OTH-OBS Other-Observation: Crop type and irrigation system information were observed through other methods (for example photography, farmer, news, etc.). U.S. Geological Survey OTH-FV Other-Field Visit: Crop type and irrigation system information were determined from other previous or current year in situ field verification. U.S. Geological Survey REP Representative Field: A field within the same basin of substantial size, used to verify growing conditions for fields too small to observe via satellite. U.S. Geological Survey JAN_NOTES Notes relevant to observations made about the current month's crop type, irrigation system, or field conditions. U.S. Geological Survey Freeform notes made by the observer and reviewer from observations of each field. Notes in the 'XXX_NOTES' attribute are assigned a leading abbreviation to indicate the context of the notes. FN indicates field notes. SN indicates satellite notes. RN indicates office research notes. Empty cells indicate there are no notes about the agricultural field. FEB_CROP Crop grown on the agricultural field during the month. Crop identifications are based on in situ observation and supplemented by satellite imagery observation. U.S. Geological Survey See JAN_CROP for description of values. FEB_AUX Additional details about the agricultural field or the crop growing on the agricultural field during the month, such as growth stage or orchard type. Note: growth stage is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey See JAN_AUX for description of values. FEB_COND Observation of crop condition for the crop grown during the month. Using a fraction to reduce the full withdrawal requirement crop condition accounts for two conditions: 1) the level of irrigation observed relative to the expected level of irrigation for the crop being grown and the specific time in the growing season. For example, irrigation is expected to be reduced before the harvest of small grain or during the drying period after alfalfa is cut, 2) the areal extent of the agricultural field covered by the crop being grown so the agricultural field polygon does not need to be split. For example, on a 160-acre agricultural field alfalfa is grown on 100 acres from February through April, 40 acres from May through August, and 160 acres from September through October; on average 54 percent of the field is irrigated; the withdrawal is reduced by 46 percent. Irrigation level is based on the health of the crop observed in situ and on satellite imagery. Note: crop condition is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey 0.0 1.0 unitless 0.01 FEB_VTYP Type of verification used to identify the agricultural crop growing on the field during the month. U.S. Geological Survey See JAN_VTYP for description of values. FEB_NOTES Notes relevant to observations made about the current month's crop type, irrigation system, or field conditions. U.S. Geological Survey See JAN_NOTES for description of values. MAR_CROP Crop grown on the agricultural field during the month. Crop identifications are based on in situ observation and supplemented by satellite imagery observation. U.S. Geological Survey See JAN_CROP for description of values. MAR_AUX Additional details about the agricultural field or the crop growing on the agricultural field during the month, such as growth stage or orchard type. Note: growth stage is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey See JAN_AUX for description of values. MAR_COND Observation of crop condition for the crop grown during the month. Using a fraction to reduce the full withdrawal requirement crop condition accounts for two conditions: 1) the level of irrigation observed relative to the expected level of irrigation for the crop being grown and the specific time in the growing season. For example, irrigation is expected to be reduced before the harvest of small grain or during the drying period after alfalfa is cut, 2) the areal extent of the agricultural field covered by the crop being grown so the agricultural field polygon does not need to be split. For example, on a 160-acre agricultural field alfalfa is grown on 100 acres from February through April, 40 acres from May through August, and 160 acres from September through October; on average 54 percent of the field is irrigated; the withdrawal is reduced by 46 percent. Irrigation level is based on the health of the crop observed in situ and on satellite imagery. Note: crop condition is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey 0.0 1.0 unitless 0.01 MAR_VTYP Type of verification used to identify the agricultural crop growing on the field during the month. U.S. Geological Survey See JAN_VTYP for description of values. MAR_NOTES Notes relevant to observations made about the current month's crop type, irrigation system, or field conditions. U.S. Geological Survey See JAN_NOTES for description of values. APR_CROP Crop grown on the agricultural field during the month. Crop identifications are based on in situ observation and supplemented by satellite imagery observation. U.S. Geological Survey See JAN_CROP for description of values. APR_AUX Additional details about the agricultural field or the crop growing on the agricultural field during the month, such as growth stage or orchard type. Note: growth stage is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey See JAN_AUX for description of values. APR_COND Observation of crop condition for the crop grown during the month. Using a fraction to reduce the full withdrawal requirement crop condition accounts for two conditions: 1) the level of irrigation observed relative to the expected level of irrigation for the crop being grown and the specific time in the growing season. For example, irrigation is expected to be reduced before the harvest of small grain or during the drying period after alfalfa is cut, 2) the areal extent of the agricultural field covered by the crop being grown so the agricultural field polygon does not need to be split. For example, on a 160-acre agricultural field alfalfa is grown on 100 acres from February through April, 40 acres from May through August, and 160 acres from September through October; on average 54 percent of the field is irrigated; the withdrawal is reduced by 46 percent. Irrigation level is based on the health of the crop observed in situ and on satellite imagery. Note: crop condition is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey 0.0 1.0 unitless 0.01 APR_VTYP Type of verification used to identify the agricultural crop growing on the field during the month. U.S. Geological Survey See JAN_VTYP for description of values. APR_NOTES Notes relevant to observations made about the current month's crop type, irrigation system, or field conditions. U.S. Geological Survey See JAN_NOTES for description of values. MAY_CROP Crop grown on the agricultural field during the month. Crop identifications are based on in situ observation and supplemented by satellite imagery observation. U.S. Geological Survey See JAN_CROP for description of values. MAY_AUX Additional details about the agricultural field or the crop growing on the agricultural field during the month, such as growth stage or orchard type. Note: growth stage is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey See JAN_AUX for description of values. MAY_COND Observation of crop condition for the crop grown during the month. Using a fraction to reduce the full withdrawal requirement crop condition accounts for two conditions: 1) the level of irrigation observed relative to the expected level of irrigation for the crop being grown and the specific time in the growing season. For example, irrigation is expected to be reduced before the harvest of small grain or during the drying period after alfalfa is cut, 2) the areal extent of the agricultural field covered by the crop being grown so the agricultural field polygon does not need to be split. For example, on a 160-acre agricultural field alfalfa is grown on 100 acres from February through April, 40 acres from May through August, and 160 acres from September through October; on average 54 percent of the field is irrigated; the withdrawal is reduced by 46 percent. Irrigation level is based on the health of the crop observed in situ and on satellite imagery. Note: crop condition is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey 0.0 1.0 unitless 0.01 MAY_VTYP Type of verification used to identify the agricultural crop growing on the field during the month. U.S. Geological Survey See JAN_VTYP for description of values. MAY_NOTES Notes relevant to observations made about the current month's crop type, irrigation system, or field conditions. U.S. Geological Survey See JAN_NOTES for description of values. JUN_CROP Crop grown on the agricultural field during the month. Crop identifications are based on in situ observation and supplemented by satellite imagery observation. U.S. Geological Survey See JAN_CROP for description of values. JUN_AUX Additional details about the agricultural field or the crop growing on the agricultural field during the month, such as growth stage or orchard type. Note: growth stage is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey See JAN_AUX for description of values. JUN_COND Observation of crop condition for the crop grown during the month. Using a fraction to reduce the full withdrawal requirement crop condition accounts for two conditions: 1) the level of irrigation observed relative to the expected level of irrigation for the crop being grown and the specific time in the growing season. For example, irrigation is expected to be reduced before the harvest of small grain or during the drying period after alfalfa is cut, 2) the areal extent of the agricultural field covered by the crop being grown so the agricultural field polygon does not need to be split. For example, on a 160-acre agricultural field alfalfa is grown on 100 acres from February through April, 40 acres from May through August, and 160 acres from September through October; on average 54 percent of the field is irrigated; the withdrawal is reduced by 46 percent. Irrigation level is based on the health of the crop observed in situ and on satellite imagery. Note: crop condition is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey 0.0 1.0 unitless 0.01 JUN_VTYP Type of verification used to identify the agricultural crop growing on the field during the month. U.S. Geological Survey See JAN_VTYP for description of values. JUN_NOTES Notes relevant to observations made about the current month's crop type, irrigation system, or field conditions. U.S. Geological Survey See JAN_NOTES for description of values. JUL_CROP Crop grown on the agricultural field during the month. Crop identifications are based on in situ observation and supplemented by satellite imagery observation. U.S. Geological Survey See JAN_CROP for description of values. JUL_AUX Additional details about the agricultural field or the crop growing on the agricultural field during the month, such as growth stage or orchard type. Note: growth stage is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey See JAN_AUX for description of values. JUL_COND Observation of crop condition for the crop grown during the month. Using a fraction to reduce the full withdrawal requirement crop condition accounts for two conditions: 1) the level of irrigation observed relative to the expected level of irrigation for the crop being grown and the specific time in the growing season. For example, irrigation is expected to be reduced before the harvest of small grain or during the drying period after alfalfa is cut, 2) the areal extent of the agricultural field covered by the crop being grown so the agricultural field polygon does not need to be split. For example, on a 160-acre agricultural field alfalfa is grown on 100 acres from February through April, 40 acres from May through August, and 160 acres from September through October; on average 54 percent of the field is irrigated; the withdrawal is reduced by 46 percent. Irrigation level is based on the health of the crop observed in situ and on satellite imagery. Note: crop condition is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey 0.0 1.0 unitless 0.01 JUL_VTYP Type of verification used to identify the agricultural crop growing on the field during the month. U.S. Geological Survey See JAN_VTYP for description of values. JUL_NOTES Notes relevant to observations made about the current month's crop type, irrigation system, or field conditions. U.S. Geological Survey See JAN_NOTES for description of values. AUG_CROP Crop grown on the agricultural field during the month. Crop identifications are based on in situ observation and supplemented by satellite imagery observation. U.S. Geological Survey See JAN_CROP for description of values. AUG_AUX Additional details about the agricultural field or the crop growing on the agricultural field during the month, such as growth stage or orchard type. Note: growth stage is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey See JAN_AUX for description of values. AUG_COND Observation of crop condition for the crop grown during the month. Using a fraction to reduce the full withdrawal requirement crop condition accounts for two conditions: 1) the level of irrigation observed relative to the expected level of irrigation for the crop being grown and the specific time in the growing season. For example, irrigation is expected to be reduced before the harvest of small grain or during the drying period after alfalfa is cut, 2) the areal extent of the agricultural field covered by the crop being grown so the agricultural field polygon does not need to be split. For example, on a 160-acre agricultural field alfalfa is grown on 100 acres from February through April, 40 acres from May through August, and 160 acres from September through October; on average 54 percent of the field is irrigated; the withdrawal is reduced by 46 percent. Irrigation level is based on the health of the crop observed in situ and on satellite imagery. Note: crop condition is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey 0.0 1.0 unitless 0.01 AUG_VTYP Type of verification used to identify the agricultural crop growing on the field during the month. U.S. Geological Survey See JAN_VTYP for description of values. AUG_NOTES Notes relevant to observations made about the current month's crop type, irrigation system, or field conditions. U.S. Geological Survey See JAN_NOTES for description of values. SEP_CROP Crop grown on the agricultural field during the month. Crop identifications are based on in situ observation and supplemented by satellite imagery observation. U.S. Geological Survey See JAN_CROP for description of values. SEP_AUX Additional details about the agricultural field or the crop growing on the agricultural field during the month, such as growth stage or orchard type. Note: growth stage is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey See JAN_AUX for description of values. SEP_COND Observation of crop condition for the crop grown during the month. Using a fraction to reduce the full withdrawal requirement crop condition accounts for two conditions: 1) the level of irrigation observed relative to the expected level of irrigation for the crop being grown and the specific time in the growing season. For example, irrigation is expected to be reduced before the harvest of small grain or during the drying period after alfalfa is cut, 2) the areal extent of the agricultural field covered by the crop being grown so the agricultural field polygon does not need to be split. For example, on a 160-acre agricultural field alfalfa is grown on 100 acres from February through April, 40 acres from May through August, and 160 acres from September through October; on average 54 percent of the field is irrigated; the withdrawal is reduced by 46 percent. Irrigation level is based on the health of the crop observed in situ and on satellite imagery. Note: crop condition is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey 0.0 1.0 unitless 0.01 SEP_VTYP Type of verification used to identify the agricultural crop growing on the field during the month. U.S. Geological Survey See JAN_VTYP for description of values. SEP_NOTES Notes relevant to observations made about the current month's crop type, irrigation system, or field conditions. U.S. Geological Survey See JAN_NOTES for description of values. OCT_CROP Crop grown on the agricultural field during the month. Crop identifications are based on in situ observation and supplemented by satellite imagery observation. U.S. Geological Survey See JAN_CROP for description of values. OCT_AUX Additional details about the agricultural field or the crop growing on the agricultural field during the month, such as growth stage or orchard type. Note: growth stage is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey See JAN_AUX for description of values. OCT_COND Observation of crop condition for the crop grown during the month. Using a fraction to reduce the full withdrawal requirement crop condition accounts for two conditions: 1) the level of irrigation observed relative to the expected level of irrigation for the crop being grown and the specific time in the growing season. For example, irrigation is expected to be reduced before the harvest of small grain or during the drying period after alfalfa is cut, 2) the areal extent of the agricultural field covered by the crop being grown so the agricultural field polygon does not need to be split. For example, on a 160-acre agricultural field alfalfa is grown on 100 acres from February through April, 40 acres from May through August, and 160 acres from September through October; on average 54 percent of the field is irrigated; the withdrawal is reduced by 46 percent. Irrigation level is based on the health of the crop observed in situ and on satellite imagery. Note: crop condition is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey 0.0 1.0 unitless 0.01 OCT_VTYP Type of verification used to identify the agricultural crop growing on the field during the month. U.S. Geological Survey See JAN_VTYP for description of values. OCT_NOTES Notes relevant to observations made about the current month's crop type, irrigation system, or field conditions. U.S. Geological Survey See JAN_NOTES for description of values. NOV_CROP Crop grown on the agricultural field during the month. Crop identifications are based on in situ observation and supplemented by satellite imagery observation. U.S. Geological Survey See JAN_CROP for description of values. NOV_AUX Additional details about the agricultural field or the crop growing on the agricultural field during the month, such as growth stage or orchard type. Note: growth stage is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey See JAN_AUX for description of values. NOV_COND Observation of crop condition for the crop grown during the month. Using a fraction to reduce the full withdrawal requirement crop condition accounts for two conditions: 1) the level of irrigation observed relative to the expected level of irrigation for the crop being grown and the specific time in the growing season. For example, irrigation is expected to be reduced before the harvest of small grain or during the drying period after alfalfa is cut, 2) the areal extent of the agricultural field covered by the crop being grown so the agricultural field polygon does not need to be split. For example, on a 160-acre agricultural field alfalfa is grown on 100 acres from February through April, 40 acres from May through August, and 160 acres from September through October; on average 54 percent of the field is irrigated; the withdrawal is reduced by 46 percent. Irrigation level is based on the health of the crop observed in situ and on satellite imagery. Note: crop condition is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey 0.0 1.0 unitless 0.01 NOV_VTYP Type of verification used to identify the agricultural crop growing on the field during the month. U.S. Geological Survey See JAN_VTYP for description of values. NOV_NOTES Notes relevant to observations made about the current month's crop type, irrigation system, or field conditions. U.S. Geological Survey See JAN_NOTES for description of values. DEC_CROP Crop grown on the agricultural field during the month. Crop identifications are based on in situ observation and supplemented by satellite imagery observation. U.S. Geological Survey See JAN_CROP for description of values. DEC_AUX Additional details about the agricultural field or the crop growing on the agricultural field during the month, such as growth stage or orchard type. Note: growth stage is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey See JAN_AUX for description of values. DEC_COND Observation of crop condition for the crop grown during the month. Using a fraction to reduce the full withdrawal requirement crop condition accounts for two conditions: 1) the level of irrigation observed relative to the expected level of irrigation for the crop being grown and the specific time in the growing season. For example, irrigation is expected to be reduced before the harvest of small grain or during the drying period after alfalfa is cut, 2) the areal extent of the agricultural field covered by the crop being grown so the agricultural field polygon does not need to be split. For example, on a 160-acre agricultural field alfalfa is grown on 100 acres from February through April, 40 acres from May through August, and 160 acres from September through October; on average 54 percent of the field is irrigated; the withdrawal is reduced by 46 percent. Irrigation level is based on the health of the crop observed in situ and on satellite imagery. Note: crop condition is not a purely objective measure and requires the observer to make a judgement based on experience. U.S. Geological Survey 0.0 1.0 unitless 0.01 DEC_VTYP Type of verification used to identify the agricultural crop growing on the field during the month. U.S. Geological Survey See JAN_VTYP for description of values. DEC_NOTES Notes relevant to observations made about the current month's crop type, irrigation system, or field conditions. U.S. Geological Survey See JAN_NOTES for description of values. Shape_Leng Length of feature in internal units. ESRI Positive real numbers that are automatically generated. Internal units are meters. Shape_Area Area of feature in internal units squared. ESRI Positive real numbers that are automatically generated. Internal units are meters. GS ScienceBase U.S. Geological Survey mailing address

Denver Federal Center, Building 810, Mail Stop 302

Denver CO 80225 United States 1-888-275-8747 sciencebase@usgs.gov Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Vector Digital Data Set (Polygon) https://doi.org/10.5066/P9FHP6XX None 20230622 Amy L Read U.S. Geological Survey, Southwest Region Physical Scientist mailing address

520 North Park Avenue

Tucson AZ 85719 US 520-670-3347 aread@usgs.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998