Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Level 3 Nutrient Ecoregions, 2002

This tabular data set represents the area of each level 3 nutrient ecoregion in square meters compiled for every MRB_E2RF1 catchment of the Major River Basins (MRBs, Crawford and others, 2006). The source data are from the 2002 version of the U.S. Environmental Protection Agency's (USEPA) Aggregations of Level III Ecoregions for National Nutrient Assessment & Management Strategy (USEPA, 2002).

The MRB_E2RF1 catchments are based on a modified version of the U.S. Environmental Protection Agency's (USEPA) ERF1_2 and include enhancements to support national and regional-scale surface-water quality modeling (Nolan and others, 2002; Brakebill and others, 2011).

Data were compiled for every MRB_E2RF1 catchment for the conterminous United States covering New England and Mid-Atlantic (MRB1), South Atlantic-Gulf and Tennessee (MRB2), the Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy (MRB3), the Missouri (MRB4), the Lower Mississippi, Arkansas-White-Red, and Texas-Gulf (MRB5), the Rio Grande, Colorado, and the Great basin (MRB6), the Pacific Northwest (MRB7) river basins, and California (MRB8).

Data e Risorse

Campo Valore
accessLevel public
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identifier USGS:c05aee39-79c6-4a33-956c-bd3455c0def8
metadata_type geospatial
modified 20201117
old-spatial -127.910792, 23.243486, -65.327751, 51.657387
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash b8b206e1595bb96e6565ba85ffe7139dab1f5a03
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spatial {"type": "Polygon", "coordinates": [[[-127.910792, 23.243486], [-127.910792, 51.657387], [ -65.327751, 51.657387], [ -65.327751, 23.243486], [-127.910792, 23.243486]]]}
theme {geospatial}
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • amerigeo
  • amerigeoss
  • cali
  • california
  • catchment
  • ckan
  • cogb
  • conterminous-united-states
  • environment
  • geo
  • geoscientificinformation
  • geoss
  • glmr
  • great-lakes-ohio-upper-mississippi-and-souris-red-rainy
  • inlandwaters
  • level-3-nutrient-ecoregions
  • lmtg
  • lower-mississippi-arkansas-white-red-and-texas-gulf
  • major-river-basins
  • missouri
  • mori
  • mrb
  • mrb1
  • mrb2
  • mrb3
  • mrb4
  • mrb5
  • mrb6
  • mrb7
  • mrb8
  • mrbe2rf1
  • mrbe2rf1ws
  • national
  • nawqa
  • nema
  • new-england-and-mid-atlantic
  • north-america
  • pacific-northwest
  • panw
  • rio-grande-colorado-and-great-basin
  • sagt
  • south-atlantic-gulf-and-tennessee
  • sparrow
  • united-states
  • usgs-c05aee39-79c6-4a33-956c-bd3455c0def8
isopen False
license_id notspecified
license_title License not specified
maintainer Michael E. Wieczorek
maintainer_email mewieczo@usgs.gov
metadata_created 2025-11-22T21:26:29.949004
metadata_modified 2025-11-22T21:26:29.949008
notes This tabular data set represents the area of each level 3 nutrient ecoregion in square meters compiled for every MRB_E2RF1 catchment of the Major River Basins (MRBs, Crawford and others, 2006). The source data are from the 2002 version of the U.S. Environmental Protection Agency's (USEPA) Aggregations of Level III Ecoregions for National Nutrient Assessment & Management Strategy (USEPA, 2002). The MRB_E2RF1 catchments are based on a modified version of the U.S. Environmental Protection Agency's (USEPA) ERF1_2 and include enhancements to support national and regional-scale surface-water quality modeling (Nolan and others, 2002; Brakebill and others, 2011). Data were compiled for every MRB_E2RF1 catchment for the conterminous United States covering New England and Mid-Atlantic (MRB1), South Atlantic-Gulf and Tennessee (MRB2), the Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy (MRB3), the Missouri (MRB4), the Lower Mississippi, Arkansas-White-Red, and Texas-Gulf (MRB5), the Rio Grande, Colorado, and the Great basin (MRB6), the Pacific Northwest (MRB7) river basins, and California (MRB8).
num_resources 2
num_tags 45
title Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Level 3 Nutrient Ecoregions, 2002