National GIS Web Apps for USGS   

AppGeo and its partner, GreenInfo Network, worked with the US Geological Survey Gap Analysis Program Team to design and develop the User Interface and mapping functionality for a series of viewers for important national environmental data sets.

The land cover viewer presents vegetation and land use patterns for the continental United States.

The protected areas database (PAD-US) viewer presents current information about publicly held (state and federal) conservation lands for the United States.

The species viewer (shown in the image to the right) displays vertebrate species distributions across the United States for 2,000 species.

The applications were built using Esri’s ArcGIS Server to serve the map images combined with techniques developed by AppGeo for dynamically accessing files and data.  USGS is hosting the viewers.