Emily D. Heaston Sean T. Winter Nathan D. Chelgren Jason B. Dunham 2025 vector digital data n/a U.S. Geological Survey https://doi.org/10.5066/P9LK71AP Kristin L. Jaeger Jonathan Burnett Emily D. Heaston Steve M. Wondzell Nathan D. Chelgren Jason B. Dunham Sherri L. Johnson Mike Brown 2020 publication n/a US Geological Survey Open-File Report 2020-1075 https://doi.org/10.3133/ofr20201075 IMPORTANT NOTE: This dataset includes spatial locations where streamflow permanence observations (continuous flow, discontinuous flow, and dry) were recorded using the FLOwPER (FLOw PERmanence) field survey available in the Survey 123 mobile data collection application. Additional information to describe the field conditions are included as part of the survey. Field observations in the FLOwPER Database have not been processed for quality control including spatial data accuracy or association with a stream network such as the National Hydrography Dataset. Streamflow permanence observations are collected from several governmental and non-governmental organizations on a continuing basis. This data release is formatted as a shapefile that includes streamflow permanence observations with associated information. Photographs associated with FLOwPER data observations are included. The spatial extent of this dataset is the western United States and includes the following states: Oregon, Washington, Idaho, Nevada, California, Colorado, Maryland, Montana, Virginia, Wisconsin, and Wyoming. Streamflow permanence observations are collected from several governmental and non-governmental organizations and can be used for a variety of purposes including research and management of land, water, and ecosystem resources. The FLOwPER field survey dataset has not been reviewed for accuracy, including information related to the field survey such as geographic coordinates or geographic names. It is expected that contributors to the FLOwPER dataset collected field observations under good faith with best intentions within the limits of field conditions. 20230105 20231224 ground condition In work As needed -124.3487 -76.5649 48.8260 38.0570 United States ISO 19115 Topic Category inlandWaters environment None Streamflow permanence ephemeral perennial headwaters streams intermittent hydrologic datasets USGS Thesaurus geospatial datasets streamflow river systems USGS Metadata Identifier USGS:67e1d064d34ee7f142216699 Geographic regions Pacific Northwest Region Great Basin Region California Region Missouri Region Mid Atlantic Region Upper Mississippi Region Common Geographic areas Oregon Washington Idaho Nevada California Colorado Maryland Montana Virginia Wisconsin Wyoming No access constraints. No use constraints. Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. The U.S. Geological Survey requests to be acknowledged as originator of these data in future products or derivative research. Users are advised to read the dataset's metadata thoroughly to understand appropriate use and data limitations. Emily D Heaston Forest and Rangeland Ecosystem Science Center Biologist mailing

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Corvallis OR 97331 US 541-750-0955 eheaston@usgs.gov Funding for the development and data collection of the FLOwPER dataset was provided by the Water Availability and Use Science Program (U.S. Geological Survey); the Bureau of Land Management; and the U.S. Forest Service. We thank the U.S. Geological Survey, Bureau of Land Management, U.S. Forest Service, National Council for Air and Stream Improvement (NCASI), and private citizens for their contributions to this data set. Environment as of Metadata Creation: Microsoft Windows 11 Version 23H2 (Build 22631.4602 Service Pack N/A; Esri ArcGIS Pro 3.4.0 (Build 55405) Service Pack N/A Ryan R. McShane Roy Sando David P. Hockman-Wert 2017 dataset https://www.sciencebase.gov U.S. Geological Survey https://doi.org/10.5066/f7bv7fsp Kristin L. Jaeger Jonathan Burnett Emily D. Heaston Steve M. Wondzell Nathan D. Chelgren Jason B. Dunham Sherri L. Johnson Mike Brown 2020 publication n/a US Geological Survey Open-File Report 2020-1075 https://doi.org/10.3133/ofr20201075 The FLOwPER field survey dataset has not been reviewed for accuracy, including information related to the field survey such as geographic coordinates or geographic names. It is expected that contributors to the FLOwPER dataset collected field observations under good faith with best intentions within the limits of field conditions. The FLOwPER field survey dataset has not been reviewed for accuracy, including information related to the field survey such as geographic coordinates or geographic names. It is expected that contributors to the FLOwPER dataset collected field observations under good faith with best intentions within the limits of field conditions. Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the metadata record carefully for additional details. Observation points were plotted in ArcGIS to identify obvious data entry and transcription errors. A formal accuracy assessment of the vertical positional information in the data set has either not been conducted, or is not applicable. These data were collected using the FLOwPER Field Form, which is a mobile application with versions programmed for commonly available mobile devices. FLOwPER is programmed into Survey123 (TM) (ArcGIS online, Environmental Systems Research Institute, https://www.esri.com/en-us/home). The FLOwPER field form is detailed in Jaeger and others, 2020 (doi:https://doi.org/10.3133/ofr20201075). Data collected using the FLOwPER field form is uploaded to the FLOwPER group within the ArcGIS online environment. The feature layer is downloaded periodically from the ArcGIS online database as a Vector Digital Data Set (Point) and is an Esri Point Shapefile for long term archiving in this ScienceBase Data Release. 20241220 Emily D Heaston Forest and Rangeland Ecosystem Science Center Biologist mailing

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Corvallis OR 97331 US 541-750-0955 eheaston@usgs.gov Data quality analysis and quality checks were conducted to remove any erroneous data (usually data uploaded when testing that the Survey123 form is functional) and to remove any PII from the photos uploaded with the data. The downloaded hosted feature layer (see process step 1) is QAQC'ed to remove or adjust any obvious data errors and then exported as a shapefile in preparation for the data release. Any attached photos are also QAQC'ed, where any photos including an identifiable person are deleted and any vehicle license plates are blacked out. Photos are also renamed during this process so they all have consistent naming convention that includes the HUC for the location the related observation was taken. After QAQC, the photos are then sorted into individual zipped folders for each HUC across the spatial extent where observations were collected for the calendar year. 20250225 Emily D Heaston Forest and Rangeland Ecosystem Science Center Biologist mailing

3200 SW Jefferson Way

Corvallis OR 97331 US 541-750-0955 eheaston@usgs.gov Point Point 0.000000001 0.000000001 Decimal degrees World Geodetic System 1984 (WGS 84) WGS_1984 6378137.0 298.257223563 FLOwPER_2023_Data.shp Attribute Table Table containing attribute information associated with the data set. Producer Defined FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Geometry of the layer (point, polyline or polygon). All data are point. Producer Defined Point ZM Obs_Name Name of person or entity providing data for this record Producer Defined Unbounded set of Observer Names Obs_Org Professional organization of the observer. Blank cells indicate no organization specified. Producer Defined USGS U.S. Geological Survey Producer defined USFS U.S. Forest Service Producer defined BLM Bureau of Land Management Producer defined Great Basin Institute Great Basin Institute Producer defined Commercial Commercial entity Producer defined PSMFC Pacific States Marine Fisheries Commission Producer defined NCASI National Council for Air and Stream Improvement Producer defined OR Private Timber Oregon Private Timber entity Producer defined Private Private entity Producer defined Portland Water Bureau Portland Water Bureau Producer defined USFWS U.S. FIsh and Wildlife Service Producer defined NPS U.S. National Park Service Producer defined Other Organization not represented in the list. Users have the option to write in a specific organization in the Other_org field. Producer defined Other_org Commercial Producer Defined na Indicates that organization is specified in the Obs_Org field or is unknown. Producer defined Unbounded set of organization names. SampScheme Observation collected opportunistically or following a specific sampling scheme. Producer Defined Opportunistic Collected points have not been predetermined through a defined sampling strategy Producer defined Designed Collected points are based on a predetermined "Designed Statistical Sampling Scheme". Producer defined Plot_ID ID for an observation collected as part of a "Designed" sampling scheme. Producer Defined na Indicates that there is no plot ID or observation is not part of a known sampling scheme. Producer defined Unbounded list of text Obs_Date Date the observation was made. Producer Defined 01/05/2023 11:22:17 12/24/2023 09:51:24 mm/dd/yyyy hh:mm:ss 1 LATITUDE Latitude, World Geodetic System 1984 (WGS 84) Producer Defined 38.0570866667 48.8260033333 Decimal degrees LONGITUDE Longitude, World Geodetic System 1984 (WGS 84) Producer Defined -124.348788202 -76.5649600447 Decimal degrees Strm_Nm_YN Value determines if USGS Geographic Names Information System or GNIS name is known. Producer Defined Yes USGS Geographic Names Information System or GNIS name is known. Producer defined No USGS Geographic Names Information System or GNIS name is not known. Producer defined Strm_Nm_Sp Name of stream that can include abbreviations. May not correspond to USGS Geographic Names Information System. Producer Defined na Stream name unknown or not available for this record. Producer defined Unbounded set of names that can include abbreviations. Flow_Stat Observation of presence of continuous streamflow, discontinuous streamflow, dry channel conditions or no data Producer Defined Continuous flow Channel that has visible surface water over the full length of the 10-m (30-ft) observation reach. If there are multiple channels, only a single channel need have continuous flow for the entire reach to be categorized "Continuous Flow". Producer defined Discontinuous flow Channel where a portion of the length of the observation reach is dry across the full width of the active channel. If there are multiple channels, then all channels must be dry, at some point along their length. Discontinuous flow can only be assigned when a dry portion of the reach is observed. Producer defined Dry Channel that has no flowing or standing water anywhere over the length of the 10-m (30-ft) observation reach. Producer defined No Data Flow status not available for this record. Producer defined Strm_Type Stream channel type Producer Defined Natural Channel Indicates a stream channel without obvious human modifications. Producer defined Ditch or canal Indicates a stream that has been diverted into a constructed ditch or channel where a natural channel did not previously exist, but it can also include a natural stream that is so modified that it now acts as a drainage ditch or canal. Producer defined Leveed or channelized Indicates a natural stream that has been modified to channelize flow through human construction of a continuous dike, ridge, or embankment on one or both sides. Producer defined Other Indicates other stream type not listed. Producer defined No Data Stream type not available for this record. Either stream type is not able to be observed or is unknown. Producer defined OthStrmTyp Other stream type if not specified in the list Producer Defined na Default and indicates stream type is specified in Strm_Type field or is unknown. Producer defined Unbounded set of stream types. Substrate Visual estimate of dominant channel bed substrate. Producer Defined Coarse Sediment Streambed dominated by sand, gravel, cobbles, or boulders Producer defined Fine Sediment Streambed dominated by silt, clay, or organic rich mucks Producer defined Bedrock Large, continuous areas of solid rock on most of the channel bed. Producer defined Artificial Streambed dominated by concrete, riprap, or other human-placed substrate. Producer defined No obvious channel Condition of no defined channel, usually indicated as "Other" in Stream Type attribute. Producer defined No Data Substrate not available for this record. Producer defined RdCross_YN Value of yes or no will indicate if observation was taken at a crossing. Producer Defined Yes Observation does occur at a road or trail crossing. Producer defined No Observation does not occur at a road or trail crossing. Producer defined Cross_Type Type of crossing across the stream. Producer Defined Culvert Constructed enclosed structure. Producer defined Bridge Bridge crossing Producer defined Ford Road-tracked or constructed crossing through the streambed Producer defined Natural Crossing Not constructed crossing. Producer defined Other Other road crossing type not listed. Producer defined No Data Crossing type not applicable to or available for this record. Producer defined OthrCross Type of crossing across the stream if not specified list Producer Defined na No data available for this record. Producer defined Unbounded set of crossing types. Obs_Dir Direction of observation at crossing Producer Defined Upstream Upstream of crossing. Producer defined Downstream Downstream of crossing. Producer defined No Data No data available for this record. Producer defined CrossNm_YN Value of yes or no will indicate if crossing name is known. Producer Defined No If crossing name is not known. Producer defined Yes If crossing name is known. Producer defined CrossNm_sp Name of road or trail crossing Producer Defined na Indicates that no crossing name was known or specified. Producer defined Unbounded list of crossing names. TribJnc_YN Value of yes or no will indicate if observation is at a tributary junction. Producer Defined Yes If observation is at a tributary junction. Producer defined No If observation is not at a tributary junction. Producer defined TribJncTyp Type of tributary junction Producer Defined On tributary On tributary Producer defined On mainstem upstream On mainstem - upstream of trib junction Producer defined On mainstem downstream On mainstem - upstream of trib junction Producer defined No Data No data is available for this record. Observation is not at a tributary junction or tributary junction type was not specified by observer. Producer defined DivJnc_YN Value of yes or no will indicate if observation is at a diversion junction. Producer Defined No If observation is not at a diversion junction. Producer defined Yes If observation is at a diversion junction. Producer defined DivJncTyp Type of diversion junction Producer Defined On diversion On diversion Producer defined On stream upstream On stream - upstream of diversion junction Producer defined On stream downstream On stream - downstream of diversion junction Producer defined No Data No data is available for this record. Observation is not at a diversion junction or diversion junction type was not specified by observer. Producer defined ULCFlow_YN Value of yes or no will indicate if observation is upstream limit of continuous stream flow (i.e. the known highest point in the hydrologic drainage with continuous surface water presence). Producer Defined No If observation is not upstream limit of continuous flow. Producer defined Yes If observation is upstream limit of continuous flow. Producer defined ChnnlHd_YN Value of yes or no will indicate if observation is at the channel head. Producer Defined No If observation is not at the channel head. Producer defined Yes If observation is at the channel head. Producer defined ChnnlHTyp Type of channel head Producer Defined Continuous Observation is at the continuous channel head (i.e. this is the known highest point in the geomorphic channel with continuous signs of hydrologic scour or deposition downstream). Producer defined Discontinuous Observation is at the discontinuous channel head (i.e. the upper most extent of a geomorphic channel that is NOT continuous with the channel network downstream. This location is upstream of an area that lacks distinct channel indicators). Producer defined No Data Observation is not at a channel head. Producer defined JudgmtCall Predicted assessment of stream flow. If observer is estimating the expected condition at late summer low flow. Producer Defined Likely ephemeral Likely to be ephemeral Producer defined Likely intermittent Likely to be intermittent Producer defined Likely perennial Likely to be perennial Producer defined Likely upstream limit of continuous perennial flow Likely upstream limit of continuous perennial flow Producer defined No Data No data available for this record Producer defined ChnnlWdth Estimated bankfull width, in meters Producer Defined <1 meter <1 meter Producer defined 1-2 meters 1-2 meters Producer defined 2-5 meters 2-5 meters Producer defined >5 meters >5 meters Producer defined No Data No data available for this record. Producer defined ValFlrWdth Estimated active valley floor width (as a multiple of active channel width). Producer Defined 1x (no floodplain) Valley floor width is 1 time (the same width) the bankfull (active) channel width. Producer defined 2x Valley floor width is 2 times the bankfull (active) channel width. Producer defined 3x Valley floor width is 3 times the bankfull (active) channel width. Producer defined 4x Valley floor width is 4 times the bankfull (active) channel width. Producer defined >5x Valley floor width is 5 or more times the bankfull (active) channel width. Producer defined No Data No data available for this record. Producer defined Max_Depth Measured maximum water depth in observation reach. Producer Defined 10000 No data available for this record; 10,000 is the default no data value. Producer defined 0.0 1200.0 Max_Units Units of maximum water depth Producer Defined cm centimeters Producer defined inches inches Producer defined No Data No data available for this record. Producer defined Max_Type Type of maximum water depth observation. Producer Defined Measured Measured Producer defined Exceeds recorded value If water depth is greater than what is recorded. Producer defined None No max depth measurement was taken. Producer defined Notes Additional notes about observation. Producer Defined na No notes were recorded for this entry Producer defined Unbounded list of text. AccuracyH GPS horizontal accuracy in meters. Producer Defined 0 No horizontal accuracy was collected for this observation Producer defined 0.15 128.0 meters 0.01 GlobalID GlobalID Producer Defined Unbounded set of GlobalID codes. PhotoNm The photo file name. The photo name follows the format "ATT#_photo1_Obs_Date_photoID_HUC4ID.JPG"; (e.g., "ATT2_photo1_20230702_001608_HUC1710.jpg"). Photos are grouped by NHD WBD HUC4; HUC4 ID can be found at end of photo name or in the HUC4_ID attribute column. Photo names listed here are consistent with names of photos stored in the FLOwPER_2023_Photos_<HUC4_ID>.zip file. Individual photo metadata for each photo includes Credit Line: FLOwPER Database, Source: https://doi.org/10.5066/P9LK71AP, Author: U.S. Geological Survey, and Copyright Status: Public Domain. Producer Defined Unbounded list of photo names. PhotoNm_A1 The photo file name. The photo name follows the format "ATT#_photo2_Obs_Date_photoID_HUC4ID.JPG; (e.g., "ATT3_photo2_20230702_001616_HUC1710.jpg"). Photos are grouped by NHD WBD HUC4; HUC4 ID can be found at end of photo name or in the HUC4_ID attribute column. Photo names listed here are consistent with names of photos stored in the FLOwPER_2023_Photos_<HUC4_ID>.zip file. Individual photo metadata for each photo includes Credit Line: FLOwPER Database, Source: https://doi.org/10.5066/P9LK71AP, Author: U.S. Geological Survey, and Copyright Status: Public Domain. Producer Defined Unbounded list of photo names. PhotoNm_A2 The photo file name. The photo name follows the format "ATT#_photo3_Obs_Date_photoID_HUC4ID.JPG"; (e.g., "ATT4_photo3_20230702_001627_HUC1710.jpg"). Photos are grouped by NHD WBD HUC4; HUC4 ID can be found at end of photo name or in the HUC4_ID attribute column. Photo names listed here are consistent with names of photos stored in the FLOwPER_2023_Photos_<HUC4_ID>.zip file. Individual photo metadata for each photo includes Credit Line: FLOwPER Database, Source: https://doi.org/10.5066/P9LK71AP, Author: U.S. Geological Survey, and Copyright Status: Public Domain. Producer Defined na No data available for this record. Producer defined Unbounded list of photo names. CreationDa Date observation record was created in the Survey123 or Field Maps ESRI mobile data collection application. Producer Defined 1/6/2023 12/24/2023 m/d/yyyy 1 Creator ArcGIS Online account user that uploaded observation to the ArcGIS Online feature layer. Producer Defined Unbounded list of Creators. EditDate The last edit date. Can include the date it was uploaded to the ArcGIS Online feature layer. Producer Defined 1/6/2023 5/17/2024 m/d/yyyy 1 Editor The ArcGIS Online account user that last edited the data. Producer Defined Unbounded list of editors. HUC4_ID HUC4 watershed boundary area ID that the FLOwPER data point intersects. National Hydrography Dataset, https://www.usgs.gov/national-hydrography/watershed-boundary-dataset 4-Digit Hydrologic Unit Codes National Hydrography Watershed Boundary Dataset, https://www.usgs.gov/national-hydrography/watershed-boundary-dataset GS ScienceBase U.S. Geological Survey - ScienceBase mailing address

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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 for other purposes, nor on all computer systems, 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. SHP, JPG https://doi.org/10.5066/P9LK71AP None 20250428 Data Manager Forest and Rangeland Ecosystem Science Center Data Manager mailing

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Corvallis OR 97330 US 541-750-1030 fresc_outreach@usgs.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998