Jeffrey Walker
Data Assimilation Defined
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Definition 1:
using data to force a model
ie. precipitation and evapotranspiration to force a
LSM
•
Analogy:
passenger giving instructions to a
blindfolded driver on the M1 at peak hour
•
•
Definition 2
:
using state observations to make a
correction to the forecast model state
ie. surface soil moisture obs. to correct forecasts
Analogy:
driver can see through his blindfold for
1/10
th
second every 30 seconds
