WebMar 22, 2016 · To make sure you are using the most current ecoregion data, download shapefiles of ecoregions) GIS data (shapefiles, metadata and symbology): ... US Level III Ecoregions with North America Hillshading--30" X 23" (33.7 mb) Ecoregion Descriptions (MSWord documents): US Level III Descriptions (119 kb) WebLevel III has attributes for the US and North America (NA_) while Levels II and I apply to only North America. All features are identified by State and EPA Administrative Regions, as well. Fields ending with "KEY" combine ecoregion code and name attributes for convenient legends and are linked to style and layer files containing color definitions.
Level III Ecoregions of Alabama - US EPA
WebThis data set shows Level I, II, and III ecological regions (ecoregions) of North America, and is an update and revision of files developed by Canada, Mexico, and the United States of America in the late 1990’s in a cooperative project for the Commission for Environmental Cooperation (CEC). WebLevel IV ecoregions are further subdivisions of Level III ecoregions. Methods used to define the ecoregions are explained in Omernik (1995, 2004), Omernik and others (2000), and Gallant and others (1989). Literature cited: Commission for Environmental Cooperation Working Group, 1997, Ecological regions of North America- toward a common ... jesus looking for the lost sheep
Ecoregions of North America Ecosystems Research
Maps (PDF format): 1. Level I Ecoregions of North America: Full size map (PDF, 6 mb) 2. Level II Ecoregions of North America: Full size map (PDF, 10 mb) 3. Level III Ecoregions of North America: Full size map (PDF, 9 mb) GIS data (shapefiles, metadata and symbology). Ecoregions of North America … See more North America has been divided into 15 broad, level I ecological regions. These highlight major ecological areas and provide the broad … See more The 50 level II ecological regions that have been delineated are intended to provide a more detailed description of the large ecological areas nested within the level I regions. Level II … See more Level III mapping describes smaller ecological areas nested within level II regions. At level III, the continent currently contains 182 ecological regions. These smaller divisions … See more WebSep 11, 2024 · USERS PLEASE NOTE - shapefile does NOT accurately represent outer MEOW boundaries: As specified in the original publications, the boundaries in this shapefile have been extended out some 200 nautical miles from land (and this buffer is extended to include any additional marine areas less than 200metres in depth which lie beyond this … WebThe North American Environmental Atlas combines and harmonizes geospatial data from Canada, Mexico and the United States to allow for a continental and regional perspective on environmental issues that cross boundaries. The Atlas continues to grow in breadth and depth as more thematic maps are created through our work and our partnerships. inspirations nursery leeds