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

This tabular data set represents the estimated area of level 3 ecological landscape regions (ecoregions), as defined by Omernik (1987), compiled for every MRB_E2RF1 catchment of the Major River Basins (MRBs, Crawford and others, 2006). The source data set is Level III Ecoregions of the Continental United States (U.S. Environmental Protection Agency, 2003).

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
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier USGS:9e8cc3e7-e91d-43a3-87f1-7743356673fb
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 93f26fc38ac67c1850b4c3e41f967bb23d06e6e2
source_schema_version 1.1
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-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-9e8cc3e7-e91d-43a3-87f1-7743356673fb
isopen False
license_id notspecified
license_title License not specified
maintainer Michael E. Wieczorek
maintainer_email mewieczo@usgs.gov
metadata_created 2025-11-21T10:53:57.025143
metadata_modified 2025-11-21T10:53:57.025147
notes This tabular data set represents the estimated area of level 3 ecological landscape regions (ecoregions), as defined by Omernik (1987), compiled for every MRB_E2RF1 catchment of the Major River Basins (MRBs, Crawford and others, 2006). The source data set is Level III Ecoregions of the Continental United States (U.S. Environmental Protection Agency, 2003). 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 Ecoregions