A GIS-Enabled Approach for Assessing Damage Potential of Levee Systems Based on Underlying Geology and River Morphology

Table 2

Data types and sources.

Data	Source
Surface soil data	Soil Survey Geographic Database (SSURGO)
Underlying geology features	United States Geological Survey (USGS)
Hydrological features and characteristics	National Hydrography Dataset (NHD)
Ground water table	National Water Information System (USGS)
Terrain elevation data	National Elevation Dataset (NED)
County limit, cities, and road networks	State, county, and city authorities
Population	US Census Bureau
Land cover	Multi-Resolution Land Characterization (MRLC)
Aerial maps	Bing maps, through the ArcGIS online Server
Levee geometry and soil properties	(i) Soil report for Sacramento City, US Army Corps of Engineers, 1987; (ii) Maps and borehole, URS Corporation and the California Department of Water Resources Urban Levee Evaluation Program, 2010