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Twister Dashboard: Exploring Three Decades of Violent Storms
Although tornadoes can occur throughout the year, prime time for twisters in the U.S. is spring and early summer. Larger symbols show more violent tornadoes. Zoom into the map... -
USGS Historical Topographic Map Explorer
The ArcGIS Online US Geological Survey (USGS) topographic map collection now contains over 177,000 historical quadrangle maps dating from 1882 to 2006. The USGS Historical... -
Seafloor Bathymetry (meters)
Ocean depth plays an important role in the distribution and abundance of living organisms and has important implications for shipping and offshore development projects such as... -
GIS for Disaster Prevention, Management and Recovery
Geographic Information Systems (GIS) can help in solving some of the biggest challenges when it come to disasters by: Preventing disasters from occurringMitigating impacts from... -
FireSci Tubbs Fire Santa Rosa, CA (Basic Viewer)
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Ecological Marine Unit (EMU) Explorer
The existence, sources, distribution, circulation, and physicochemical nature of macroscale oceanic water bodies have long been a focus of oceanographic inquiry. Building on... -
World Ocean Base
The map is designed to be used as a basemap by marine GIS professionals and as a reference map by anyone interested in ocean data. The basemap focuses on bathymetry. It also...