Root zone soil moisture (RZSM) products based on scatterometer data assimilation
David Fairbairn discusses the theory behind the near-real-time and data record RZSM products.
Length: 25 minutes.
ECMWF provides the core root-zone soil moisture (SM) products for H SAF through an Extended Kalman filter assimilation system, running independently of the NWP system. Space borne scatterometer-derived surface SM observations are assimilated into the root-zone (0-1 m) SM of the H-TESSEL land surface model. In this presentation, the theory behind the near-real-time and data record products is discussed.