An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Estuary Data Mapper (EDM) Image Gallery

The Estuary Data Mapper (EDM) is a free, interactive graphical application under development by the US EPA that allows scientific researchers to quickly and easily view, retrieve, and save data of interest to estuary researchers and decision-makers.

The following screenshot gallery illustrates the types of data that EDM makes available.

EDM interface displaying CMAQ-WDT dataset variables and resultsMODIS reflectance true-color image data comes from daily satellite images taken from May 2012-present.EDM with nitrogen datasetEDM with CMAQ nitrogen deposition dataEDM with watershed model (WSM) resultsEDM display of NCCA Water Quality data EDM screenshot of gridded ICLUS dataLand Use variables for ICLUS Version 2, with data displayEDM screenshot of ICLUS watershed data

Image of multiple data layers showing gridded deposition, water quality, tidal gauge stationsMultiple data layers: e.g. gridded deposition, water quality, tidal gauge stations, etc. retrieved with one click and displayed and saved in seconds

Image demonstrating one-click dataset selectionsOne-click dataset selections to  show popular scenarios and for convenient export to decision-support tools

Image of sediment core samplesSediment core samplesImage of land use with 30-meter resolutionLand use (30-meter resolution)Image of Topography/BathymetryTopography/BathymetryImage of polygonal dataPolygonal Data: Wetlands, Temperature, etc.Image of polygonal data.Polygonal Data: Wetlands, Temperature, etc.Image of satellite-measured water-quality dataSatellite-measured water-quality dataImage of modelled meteorology/hydrodynamics dataModelled meteorology and hydrodynamics data

Image of modelled coastal vulnerability dataModelled coastal vulnerability dataExample of high-resolution satellite imageryHigh-resolution satellite imageryExample of high-resolution satellite imagery.High-resolution satellite imageryImage of subset data saved to ArcGIS, GoogleEarth & othersSaving EDM data to file formats for import to GIS tools, such as ArcGIS and Google EarthImage subset data saved ArcGIS, Google Earth & others.EDM subsetted data imported into Quantum GISImage subset data saved to ArcGIS, Google Earth & others.EDM subsetted data displayed in Google Earth

Top of Page