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RISEvaluation of Model Parameter Convergence when Using Data Assimilation for Soil Moisture Estimation
Publisher: American Meteorological Society
Abstract: ata assimilation (DA) methods are commonly used for finding a compromise between imperfect observations and uncertain model predictions. The estimation of model states and parameters has been widely recognized, but the ...
One-Dimensional Soil Moisture Profile Retrieval by Assimilation of Near-Surface Measurements: A Simplified Soil Moisture Model and Field Application
Publisher: American Meteorological Society
Abstract: The Kalman filter assimilation technique is applied to a simplified soil moisture model for retrieval of the soil moisture profile from near-surface soil moisture measurements. First, the simplified soil moisture model is ...
Structure of a Low-Level Jet over Lower Cook Inlet, Alaska
Publisher: American Meteorological Society
Abstract: During February 1982 a NOAA research aircraft investigated a cold, low-level jet blowing from a gap between mountain ranges on line west side of Cook Inlet, Alaska. The jet blew 200 km southeastward across Cook Inlet between ...
Identification of Hydrologic Models, Optimized Parameters, and Rainfall Inputs Consistent with In Situ Streamflow and Rainfall and Remotely Sensed Soil Moisture
Publisher: American Meteorological Society
Abstract: AbstractAn increased understanding of the uncertainties present in rainfall time series can lead to improved confidence in both short- and long-term streamflow forecasts. This study presents an analysis that considers ...
Extended versus Ensemble Kalman Filtering for Land Data Assimilation
Publisher: American Meteorological Society
Abstract: The performance of the extended Kalman filter (EKF) and the ensemble Kalman filter (EnKF) are assessed for soil moisture estimation. In a twin experiment for the southeastern United States synthetic observations of ...
An Intercomparison Study of Algorithms for Downscaling SMAP Radiometer Soil Moisture Retrievals
Publisher: American Meteorological Society
Abstract: In the past decade, a variety of algorithms have been introduced to downscale passive microwave soil moisture observations. Some exploit the soil moisture information from optical/thermal sensing of land surface temperature ...