Estuary Data Mapper (EDM) Data Inventory

The Estuary Data Mapper (EDM) application uses the Remote Sensing Information Gateway (RSIG) web servers as conduits for accessing data whose quality is the responsibility of the organizations that produce and maintain the data.

When a new dataset is added to EDM, quality checks are conducted to ensure that the data EDM retrieves matches the data from the source files. While data integrity checks have been performed by the EDM team, not all data provided through EDM has been independently quality assured by the EPA. Please direct all questions about data quality or related issues to the data source providers listed below.

Data availability depends on such factors as the remote host system's availability, the stability of network connections, and other issues beyond the control of EPA and this application.

If you know of other relevant data you'd like EDM to access please let us know.

Data Products by Data Type

Borders & Boundaries

Coast, Sediment, Soil, Wetlands, & Seagrass

Land Use

Meteorological Model Data

Nitrogen Deposition

  • Gridded modeled dry and interpolated monitored wet deposition data
  • Community Multi-Scale Air Quality Model (CMAQ) Deposition
  • Gridded 30m Nitrogen Sources
    • PDF document (8 pages) (may require login to Wiley Online Library). This document contains supplemental information for the following article: Sobota, D. J., Compton, J. E. and Harrison, J. A. (2013), Reactive nitrogen inputs to US lands and waterways: how certain are we about sources and fluxes?. Frontiers in Ecology and the Environment, 11: 82–90. doi:10.1890/110216.
    • The PDF document contains the following information panels:
      • Synthesis and analysis of the US nitrogen inventory (descriptive text)
      • Table 1: Data resources available for estimating N input to the US (1990s-2000s)
      • Table 2: Pairing of Level 1 ecoregions with ecosystem types described in Cleveland e al. (1999) for estimates of non-cultivated biological N fiation (BNF)
      • Table 3: Comparison between best available estimates of N inputs to the US (Tables 1 and 2) and global estimates of N input to land surfaces for the 1990s-2000s
      • References
  • Enviroatlas
  • CMAQ modelled estuary/sub-estuary monthly/annual wet/dry deposition
    • CMAQ v5.0.2 Metadata for 12km CONUS BiDi-CAFO runs: yearly N and report
  • Nitrogen Point and Non-Point Sources
  • Nitrogen Loads

Precipitation & Temperature

  • Oregon State University Climate Group  PRISM Climate Data  (Parameter-elevation Regressions on Independent Slopes Model)

Satellite data

  • National Aeronautics and Space Administration (NASA):
  • National Oceanic and Atmospheric Administration’s (NOAA) ERDDAP data server provides a simple, consistent way to download subsets of gridded and tabular scientific datasets in common file formats. The ERDDAP server provides access to the following data products:
    • Moderate Resolution Imaging Spectroradiometer (MODIS)
    • Multi-scale Ultra-high Resolution (MUR)
    • Sea-viewing Wide Field-of-view Sensor (SeaWiFS)
    • World Ocean Atlas Select (WOASelect)

Satellite/Map Images

Water

Data Products by Source Provider

Environmental Systems Research Institute, Inc. (ESRI)

  • Map polylinesshowing borders and boundaries of Coastal Zone Management Areas, Water Districts, Conservation Districts, and Legislative Districts 

Gulf States Marine Fisheries Commission

Sediment 

Maps (Bing, NASA)

National Aeronautics and Space Administration (NASA)

National Air Deposition Program (NADP)

National Oceanic and Atmospheric Administration (NOAA)

Nature Conservancy Conservation Gateway

  • Sediment data

Oregon State University Climate Group PRISM (Parameter-elevation Regressions on Independent Slopes Model)

US EPA

  • Community Multiscale Air Quality (CMAQ) model output
  • Gridded 30m Nitrogen Sources: PDF document  (8 pages) (may require login to Wiley Online Library). This document contains supplemental information for the following article: Sobota, D. J., Compton, J. E. and Harrison, J. A. (2013), Reactive nitrogen inputs to US lands and waterways: how certain are we about sources and fluxes?. Frontiers in Ecology and the Environment, 11: 82–90. doi:10.1890/110216.
    • The PDF document contains the following information panels:
      • Synthesis and analysis of the US nitrogen inventory (descriptive text)
      • Table 1: Data resources available for estimating N input to the US (1990s-2000s)
      • Table 2: Pairing of Level 1 ecoregions with ecosystem types described in Cleveland e al. (1999) for estimates of non-cultivated biological N fiation (BNF)
      • Table 3: Comparison between best available estimates of N inputs to the US (Tables 1 and 2) and global estimates of N input to land surfaces for the 1990s-2000s
      • References
  • EnviroAtlas
  • Integrated Climate and Land-Use Scenarios (ICLUS)
  • National Health and Environmental Effects Research Laboratory (NHEERL)
  • EPA National Coastal Condition Assessment
    • Map polylines of Estuaries
  • National Hydrography Dataset Plus (NHDP)
  • Seagrass. EPA has compiled this seagrass data from US Geological Survey (USGS) data for the states listed:
    • Texas, Louisiana, Alabama and Florida (Gulf Coast)
    • Maine, New Hampshire, Massachusetts, Rhode Island, Connecticut, New York, New Jersey and Virginia (Northern Atlantic Coastal Region)
    • Oregon and Washington (Northern Pacific Coastal Region)
    • North Carolina and Florida (Southern Atlantic Coastal Region)
    • California (Southern Pacific Coastal Region)
  • Sediment
    • ​Search on "EMAP Data Users"; the page title should be "Data | Environmental Monitoring & Assessment | US EPA"
  • Water

US Fish and Wildlife Service

US Geological Survey (USGS) 

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Last updated on June 16, 2025