About Estuary Data Mapper (EDM)

The Estuary Data Mapper (EDM) is a free, interactive graphical application developed by the US EPA that allows scientific researchers to quickly and easily:

• View and select estuary-scale geographical regions of interest - i.e., pan and zoom a map of the US coastal states displaying watersheds, streams and estuaries, land coverage, satellite images, etc. The Gallery page showcases many of EDM's visual highlights.
• Retrieve and view specified water-quality data, gauge measurements of tides and freshwater discharges, gridded modeled nitrogen deposition, land use, topography/bathymetry, satellite data, etc., organized in subsets by date-time and latitude-longitude rectangle. (Data is streamed via web servers at EPA, NOAA, USGS, USFWS, etc. Examples of water-quality data points include dissolved oxygen, turbidity and chlorophyll.)
  
  The list of available maps and data  is shown in the EDM GUI. (Grayed-out buttons mark features that are not yet implemented.)
• Save the data in the following formats for further analysis and import into the EPA estuarine data model, ArcGIS or open source GIS, GoogleEarth, etc.:
  • PNG images
  • MPG movies
  • KML files
  • ESRI shapefiles
  • ESRI ACII grids.