Michael E. Wieczorek Andrew E. LaMotte 20100101 tabular digital data Digital Data Series DS-490-16 Reston, Virginia U.S. Geological Survey https://doi.org/10.5066/P9XF1GPL This data set represents the average normalized atmospheric (wet) deposition, in kilograms, of Nitrate (NO3) for the year 2002 compiled for every catchment of NHDPlus for the conterminous United States. Estimates of NO3 deposition are based on National Atmospheric Deposition Program (NADP) measurements (B. Larsen, U.S. Geological Survey, written commun., 2007). De-trending methods applied to the year 2002 are described in Alexander and others, 2001. NADP site selection met the following criteria: stations must have records from 1995 to 2002 and have a minimum of 30 observations. The NHDPlus Version 1.1 is an integrated suite of application-ready geospatial datasets that incorporates many of the best features of the National Hydrography Dataset (NHD) and the National Elevation Dataset (NED). The NHDPlus includes a stream network (based on the 1:100,00-scale NHD), improved networking, naming, and value-added attributes (VAAs). NHDPlus also includes elevation-derived catchments (drainage areas) produced using a drainage enforcement technique first widely used in New England, and thus referred to as "the New England Method." This technique involves "burning in" the 1:100,000-scale NHD and when available building "walls" using the National Watershed Boundary Dataset (WBD). The resulting modified digital elevation model (HydroDEM) is used to produce hydrologic derivatives that agree with the NHD and WBD. Over the past two years, an interdisciplinary team from the U.S. Geological Survey (USGS), and the U.S. Environmental Protection Agency (USEPA), and contractors, found that this method produces the best quality NHD catchments using an automated process (USEPA, 2007). The NHDPlus dataset is organized by 18 Production Units that cover the conterminous United States. The NHDPlus version 1.1 data are grouped by the U.S. Geologic Survey's Major River Basins (MRBs, Crawford and others, 2006). MRB1, covering the New England and Mid-Atlantic River basins, contains NHDPlus Production Units 1 and 2. MRB2, covering the South Atlantic-Gulf and Tennessee River basins, contains NHDPlus Production Units 3 and 6. MRB3, covering the Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy River basins, contains NHDPlus Production Units 4, 5, 7 and 9. MRB4, covering the Missouri River basins, contains NHDPlus Production Units 10-lower and 10-upper. MRB5, covering the Lower Mississippi, Arkansas-White-Red, and Texas-Gulf River basins, contains NHDPlus Production Units 8, 11 and 12. MRB6, covering the Rio Grande, Colorado and Great Basin River basins, contains NHDPlus Production Units 13, 14, 15 and 16. MRB7, covering the Pacific Northwest River basins, contains NHDPlus Production Unit 17. MRB8, covering California River basins, contains NHDPlus Production Unit 18. This spatial data set was created and used by the U.S. Geological Survey (USGS) specifically to estimate atmospheric deposition (wet) of Nitrate (NO3) in kilograms for 2002 per watershed segment in the application of the national SPAtially Referenced Regression On Watershed attributes (SPARROW) model . The SPARROW model relates in-stream water-quality measurements to spatially referenced characteristics of watersheds, including contaminant sources and factors influencing terrestrial and stream transport. The model empirically estimates the origin and fate of contaminants in streams, and quantifies uncertainties in these estimates based on model coefficient error and unexplained variability in the observed data. For more information on the USGS SPARROW model please refer to: <https://water.usgs.gov/nawqa/sparrow/intro/intro.html.> Alexander, R.B., Smith, R.A. Schwarz, G.E., Preston, S.D., Brakebill, J.W., Srinivasan, R., and Pacheco, P.A., 2001, Atmospheric nitrogen flux from the watersheds of major estuaries of the United States: An application of the SPARROW watershed model, in Valigura, R., Alexander, R., Castro, M., Meyers, T., Paerl, H., Stacey, P., and Turner, R.E., eds., Nitrogen loading in coastal water bodies: An atmospheric perspective: American Geophysical Union Monograph 57, p. 119-170. 2002 publication date Complete None planned -127.910792 -65.327751 51.657387 23.243486 USGS Thesaurus Nitrate (NO3) Inlandwaters NHDPlus Catchment NAWQA SPARROW ISO 19115 Topic Category geoscientificInformation inlandWaters environment USGS Metadata Identifier USGS:da57b127-7d06-47e6-8a1f-b7917784489f Geographic Names Information System Conterminous United States MRB Major River Basin MRB1 NEMA New England and Mid-Atlantic MRB2 SAGT South Atlantic-Gulf and Tennessee MRB3 GLMR Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy MRB4 MORI Missouri MRB5 LMTG Lower Mississippi, Arkansas-White-Red, and Texas-Gulf MRB6 COGB Rio Grande, Colorado, and Great Basin MRB7 PANW Pacific Northwest MRB8 CALI California None None Michael E. Wieczorek US Geological Survey, Maryland Water Science Center Geographer mailing address

5522 Research Park Drive

Baltimore MD 21228 USA 443-498-5550 mewieczo@usgs.gov 8:00am-4:30pm MST Please contact thru email https://www.sciencebase.gov/catalog/file/get/631405c9d34e36012efa3273?name=nhd_no3.jpg Normalized atmmospheric deposition for 2002, nitrate (NO3) overlain on Major River Basins. JPG Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3000 Charles G. Crawford Pixie A. Hamilton Anne B. Hoos October 5, 2006 Reston, Virginia U.S. Geological Survey Prepared by Charlie Crawford, Pixie Hamilton, and Anne Hoos for a NAWQA National Liaison Meeting, Washington D.C., October 5, 2006 http://water.usgs.gov/nawqa/studies/mrb/mrb_factsheet.pdf None None U.S. Environmental Protection U.S. Geological Survey 2007 vector digital data Washington, D.C. U.S. Environmental Protection Agency http://www.horizon-systems.com/NHDPlus/NHDPlusV1_01.php online 2007 publication date NHD The source data provided catchments for basin characterization for MRB 1. COMID is the unique item in NHDPlus that relates to the dbf files containing artificial drainage information. U.S. Environmental Protection U.S. Geological Survey 2007 vector digital data Washington, D.C. U.S. Environmental Protection Agency http://www.horizon-systems.com/NHDPlus/NHDPlusV1_02.php online 2007 publication date NHD The source data provided catchments for basin characterization for MRB 1. COMID is the unique item in NHDPlus that relates to the dbf files containing artificial drainage information. U.S. Environmental Protection U.S. Geological Survey 2007 vector digital data Washington, D.C. U.S. Environmental Protection Agency http://www.horizon-systems.com/NHDPlus/NHDPlusV1_03.php online 2007 publication date NHD The source data provided catchments for basin characterization for MRB 2. COMID is the unique item in NHDPlus that relates to the dbf files containing artificial drainage information. U.S. Environmental Protection U.S. Geological Survey 2007 vector digital data Washington, D.C. U.S. Environmental Protection Agency http://www.horizon-systems.com/NHDPlus/NHDPlusV1_04.php online 2007 publication date NHD The source data provided catchments for basin characterization for MRB 3. COMID is the unique item in NHDPlus that relates to the dbf files containing artificial drainage information. U.S. Environmental Protection U.S. Geological Survey 2007 vector digital data Washington, D.C. U.S. Environmental Protection Agency http://www.horizon-systems.com/NHDPlus/NHDPlusV1_MS.php online 2007 publication date NHD The source data provided catchments for basin characterization for MRB 3. COMID is the unique item in NHDPlus that relates to the dbf files containing artificial drainage information. U.S. Environmental Protection U.S. Geological Survey 2007 vector digital data Washington, D.C. U.S. Environmental Protection Agency http://www.horizon-systems.com/NHDPlus/NHDPlusV1_MS.php online 2007 publication date NHD The source data provided catchments for basin characterization for MRB 2. COMID is the unique item in NHDPlus that relates to the dbf files containing artificial drainage information. U.S. Environmental Protection U.S. Geological Survey 2007 vector digital data Washington, D.C. U.S. Environmental Protection Agency http://www.horizon-systems.com/NHDPlus/NHDPlusV1_MS.php online 2007 publication date NHD The source data provided catchments for basin characterization for MRB 3. COMID is the unique item in NHDPlus that relates to the dbf files containing artificial drainage information. U.S. Environmental Protection U.S. Geological Survey 2007 vector digital data Washington, D.C. U.S. Environmental Protection Agency http://www.horizon-systems.com/NHDPlus/NHDPlusV1_MS.php online 2007 publication date NHD The source data provided catchments for basin characterization for MRB 5. COMID is the unique item in NHDPlus that relates to the dbf files containing artificial drainage information. U.S. Environmental Protection U.S. Geological Survey 2007 vector digital data Washington, D.C. U.S. Environmental Protection Agency http://www.horizon-systems.com/NHDPlus/NHDPlusV1_MS.php online 2007 publication date NHD The source data provided catchments for basin characterization for MRB 3. COMID is the unique item in NHDPlus that relates to the dbf files containing artificial drainage information. U.S. Environmental Protection U.S. Geological Survey 2007 vector digital data Washington, D.C. U.S. Environmental Protection Agency http://www.horizon-systems.com/NHDPlus/NHDPlusV1_MS.php online 2007 publication date NHD The source data provided catchments for basin characterization for MRB 4. COMID is the unique item in NHDPlus that relates to the dbf files containing artificial drainage information. U.S. Environmental Protection U.S. Geological Survey 2007 vector digital data Washington, D.C. U.S. Environmental Protection Agency http://www.horizon-systems.com/NHDPlus/NHDPlusV1_MS.php online 2007 publication date NHD The source data provided catchments for basin characterization for MRB 4. COMID is the unique item in NHDPlus that relates to the dbf files containing artificial drainage information. U.S. Environmental Protection U.S. Geological Survey 2007 vector digital data Washington, D.C. U.S. Environmental Protection Agency http://www.horizon-systems.com/NHDPlus/NHDPlusV1_MS.php online 2007 publication date NHD The source data provided catchments for basin characterization for MRB 5. COMID is the unique item in NHDPlus that relates to the dbf files containing artificial drainage information. U.S. Environmental Protection U.S. Geological Survey 2007 vector digital data Washington, D.C. U.S. Environmental Protection Agency http://www.horizon-systems.com/NHDPlus/NHDPlusV1_12.php online 2007 publication date NHD The source data provided catchments for basin characterization for MRB 5. COMID is the unique item in NHDPlus that relates to the dbf files containing artificial drainage information. U.S. Environmental Protection U.S. Geological Survey 2007 vector digital data Washington, D.C. U.S. Environmental Protection Agency http://www.horizon-systems.com/NHDPlus/NHDPlusV1_13.php online 2007 publication date NHD The source data provided catchments for basin characterization for MRB 6. COMID is the unique item in NHDPlus that relates to the dbf files containing artificial drainage information. U.S. Environmental Protection U.S. Geological Survey 2007 vector digital data Washington, D.C. U.S. Environmental Protection Agency http://www.horizon-systems.com/NHDPlus/NHDPlusV1_CO.php online 2007 publication date NHD The source data provided catchments for basin characterization for MRB 6. COMID is the unique item in NHDPlus that relates to the dbf files containing artificial drainage information. U.S. Environmental Protection U.S. Geological Survey 2007 vector digital data Washington, D.C. U.S. Environmental Protection Agency http://www.horizon-systems.com/NHDPlus/NHDPlusV1_CO.php online 2007 publication date NHD The source data provided catchments for basin characterization for MRB 6. COMID is the unique item in NHDPlus that relates to the dbf files containing artificial drainage information. U.S. Environmental Protection U.S. Geological Survey 2007 vector digital data Washington, D.C. U.S. Environmental Protection Agency http://www.horizon-systems.com/NHDPlus/NHDPlusV1_16.php online 2007 publication date NHD The source data provided catchments for basin characterization for MRB 6. COMID is the unique item in NHDPlus that relates to the dbf files containing artificial drainage information. U.S. Environmental Protection U.S. Geological Survey 2007 vector digital data Washington, D.C. U.S. Environmental Protection Agency http://www.horizon-systems.com/NHDPlus/NHDPlusV1_17.php online 2007 publication date NHD The source data provided catchments for basin characterization for MRB 7. COMID is the unique item in NHDPlus that relates to the dbf files containing artificial drainage information. U.S. Environmental Protection U.S. Geological Survey 2007 vector digital data Washington, D.C. U.S. Environmental Protection Agency http://www.horizon-systems.com/NHDPlus/NHDPlusV1_18.php online 2007 publication date NHD The source data provided catchments for basin characterization for MRB 8. COMID is the unique item in NHDPlus that relates to the dbf files containing artificial drainage information. 1) Received 1-kilometer NO3 GRID from USGS (John Brakebill, U.S. Geological Survey, written commun., 2008). The NO3 GRID was processed by John Brakebill of the USGS who used point data received from NADP (B. Larsen, U.S. Geological Survey, written commun., 2008). To create the final grid, the Inverse Distance Weighting interpolation function was used in ArcInfo with 3 as the power option, SAMPLE as the keyword, and 5 as the number of nearest input sample points. 2) Resampled the NO3 GRID from 1 kilometer to 30 meters to match the resolution of the NHDPlus catchment GRID. The resulting grid values are NO3 in kilograms, in order to retain decimal places and to keep the GRID in an integer format that requires less computer space for storage. 3) Summarized NO3 deposition by catchment using the ZONALSUM command in GRID. 4) Exported results into a dbf file format. 2008 COMID code no3_02 dbf tabular data ESRI OID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. NO3_02 Nitrate (NO3) deposition in kilograms for each catchment U.S. Geological Survey 0.01 5350327.0 Kilograms COMID Unique ID to relate to the NHDPlus catchments NHDPlus Sequential unique whole numbers that are automatically generated. NO3_02_ARE Area of catchment that the source GRID covers in square meters U.S. Geological Survey 900 9899176000 Square meters BASIN_AREA Area of catchment in square meters U.S. Geological Survey 900.0 9899176000.0 Square meters NODATA_ARE Area of catchment that source GRID does not cover U.S. Geological Survey 0.0 35355810000.0 Square meters COV_PERC Percent of catchment that source GRID covers U.S. Geological Survey 0.0 100.0 Percentage U.S. Geological Survey GS ScienceBase mailing address

Denver Federal Center, Building 810, Mail Stop 302

Denver CO 80225 United States 1-888-275-8747 sciencebase@usgs.gov Downloadable Data Although this dataset has been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data, software, or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Digital Data https://doi.org/10.5066/P9XF1GPL None 20201117 U.S. Geological Survey Water Mission Area mailing

12201 Sunrise Valley Dr

Reston VA 20192 GS-W-model-data@usgs.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998