Soil water storage capacity (AWS in mm at 1.5 m depth) for the North Pacific Landscape Conservation Cooperative- western Washington, USA

This dataset represents the soil water storage capacity (AWS in mm at 1.5 m depth) from SSURGO and STATSGO soil descriptions for soil map units in the state of western Washington that lie within the North Pacific Landscape Conservation Cooperative.

Available Water Storage 0-150 cm - Weighted Average (centimeters). Available water storage (AWS). The volume of water that the soil, to a depth of 150 centimeters, can store that is available to plants. It is reported as the weighted average of all components in the map unit, and is expressed as centimeters of water. AWS is calculated from AWC (available water capacity) which is commonly estimated as the difference between the water contents at 1/10 or 1/3 bar (field capacity) and 15 bars (permanent wilting point) tension, and adjusted for salinity and fragments.