Watershed Indicators by Basin for St. Thomas and St. John, US Virgin Islands
Dates
Original Data Basin Creation Date
2010-05-21 10:18:12
Original Data Basin Modified Date
2011-06-08 12:34:07
Summary
Using basins derived from a hydrologically-corrected 30m resolution DEM as a unit for summary statistics, we provide a series of indicators focused on land-based sources of threat within the USVI. This includes indicators of a) the relative vulnerability of the land to erosion (based on slope, precipitation and soil erodibility); b) the relative erosion potential (REP) of the land, based on the relative vulnerability of the land, coupled with the current land cover type; c) the sediment delivery rate for each basin (percentage of eroded which reaches the river mouth); d) estimated sediment delivery for the basin, given current land use; e) the road density within the basin, and f) indicators of how erosion prone areas with roads might [...]
Summary
Using basins derived from a hydrologically-corrected 30m resolution DEM as a unit for summary statistics, we provide a series of indicators focused on land-based sources of threat within the USVI. This includes indicators of a) the relative vulnerability of the land to erosion (based on slope, precipitation and soil erodibility); b) the relative erosion potential (REP) of the land, based on the relative vulnerability of the land, coupled with the current land cover type; c) the sediment delivery rate for each basin (percentage of eroded which reaches the river mouth); d) estimated sediment delivery for the basin, given current land use; e) the road density within the basin, and f) indicators of how erosion prone areas with roads might be (average and total for the basin)
