Jeffrey Walker USRA/NASA-GSFC
Why Assimilate Soil Moisture?
•Accurate soil moisture forecasts are necessary for accurate
predictions of precipitation.
•LSM spin-up does not guarantee correct soil moisture
initialization.
•Errors in soil moisture forecasts result
from:
•The memory of errors in LSM soil
moisture initialization.
•Errors in atmospheric forcing data.
•Errors in LSM physics.
•Errors in soil and topographic data.