Soil_expansive_ability |
Linear extensibility percent (LEP): change in soil vol upon wetting and drying |
Hawai'i Soil Atlas, College of Tropical Agriculture and Human Resources, University of Hawai'i at Manoa |
Distance_thermal_spring |
Distance (m) to locations of thermal springs identified by Geothermex, Inc., in 2000 |
Hawai'i Department of Business, Economic Development and Tourism |
Distance_to_ag |
Distance (m) to edge of crop polygons identified from 2020 agricultural land use update for state of Hawai'i |
The University of Hawai'i at Hilo Spatial Data Analysis and Visualization (SDAV) Laboratory in conjunction with the Hawai'i State Department of Agriculture, 2021 |
Distance_to_coast |
Distance (m) to coast |
National Hydrography Dataset (72) |
Distance_inland_water |
Distance (m) to bodies of freshwater (rivers, streams, lakes, ponds) |
National Hydrography Dataset (72) |
Pop_density |
Population density estimate (people per square km) extrapolated to 2015 based on the 2010 census at 30 arc-second resolution aggregrated at 2.5 arc-minutes |
Gridded Population of the World, version 4 (GPWv4) (73) |
Vegetation_ht |
Vegetation ht (m) at 30-m resolution |
Climate of Hawai'i, Geography Deptartment, University of Manoa (17) |
Water_balance |
Mathematical difference of mean annual rainfall (mm) and evapotranspiration, 30-m resolution |
Climate of Hawai'i, Geography Department, University of Manoa (17) |
Elevation_DEM_m |
Elevation (m) at 10-m resolution |
USGS digital elevation model (74) |
Soil_age_midpoint |
The midpoint of the soil age range |
USGS geologic map of Hawai’i (37) |
Soil_expansive_ability × Water_balance |
A multiplicative interaction term between Soil_expansive ability and Water_balance |
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