30-m Topographic Wetness Index
National Park Service, Great Smoky Mountains National Park, Resource Mangement and Science and National Park Service: Thomas Colson. 2014. 30-m Topographic Wetness Index
The lidar Topographic Wetness Index (TWI) is the TWI data product produced and distributed by the National Park Service, Great Smoky Mountains National Park. Concave, low gradient areas will gather water (low TWI values), whereas steep, convex areas will shed water (high TWI values). Values range range from less than 1 (dry cells) to greater than 20 (wet cells).
- Type
- Raster Dataset
- Authors
- National Park Service, Great Smoky Mountains National Park, Resource Mangement and Science; National Park Service: Thomas Colson
- Date of Issue
- 2014-03-17
- Units
- GRSM
- Keywords
- APHN, Appalachian Highlands Network, Blockhouse TN, Blount County, Bryson City NC, Bunches Bald NC, Cades Cove TN, Calderwood TN, Clingmans Dome NC, Cocke County, Cove Creek Gap NC, Dellwood NC, DEM, Digital Elevation Model, digital terrain model, DTM, Elevation, Fines Creek NC, Fontana Dam NC, Gatlinburg TN, Geoscientific information, Graham County, Great Smoky Mountains National Park, grid, GRSM, Hartford TN, Haywood County, high-resolution, Hillslope Wetness Index, Jones Cove TN, Kinzel Springs TN, Lidar, Light Detection And Ranging, Location, Luftee Knob NC, Mount Guyot TN, Mount Le Conte TN, National Standards for Spatial Digital Accuracy (NSSDA), Natural Resource Inventory And Monitoring Program, NC, Noland Creek NC, None, North Carolina, NRIM, Pigeon Forge TN, Richardson Cove TN, SERO, Sevier County, Silers Bald NC, Smokemont NC, Southeast Region, Surface Model, Swain County, Tallassee TN, Tapoco NC, Tennessee, Terrain, Thunderhead Mountain NC, TN, Topographic Wetness Index, Topography, Tuskeegee NC, TWI, U.S., United States, US, USA, Water, Waterville TN, Wear Cove TN, Whittier NC
- Subjects
- Ecological Framework: Geology and Soils | Geomorphology | Hillslope Features and Processes , Ecological Framework: Water | Hydrology | Surface Water Dynamics