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RISGlobal Assimilation of Multiangle and Multipolarization SMOS Brightness Temperature Observations into the GEOS-5 Catchment Land Surface Model for Soil Moisture Estimation
Publisher: American Meteorological Society
Abstract: ultiangle and multipolarization L-band microwave observations from the Soil Moisture Ocean Salinity (SMOS) mission are assimilated into the Goddard Earth Observing System Model, version 5 (GEOS-5), using a spatially ...
Improvement of Modeled Soil Wetness Conditions and Turbulent Fluxes through the Assimilation of Observed Discharge
Publisher: American Meteorological Society
Abstract: The objective of this paper is to improve the performance of a hydrologic model through the assimilation of observed discharge. Since an observation of discharge at a certain time is always influenced by the catchment ...
Adaptive Soil Moisture Profile Filtering for Horizontal Information Propagation in the Independent Column-Based CLM2.0
Publisher: American Meteorological Society
Abstract: Data assimilation aims to provide an optimal estimate of the overall system state, not only for an observed state variable or location. However, large-scale land surface models are typically column-based and purely random ...
Assimilation of Freeze–Thaw Observations into the NASA Catchment Land Surface Model
Publisher: American Meteorological Society
Abstract: he land surface freeze?thaw (F/T) state plays a key role in the hydrological and carbon cycles and thus affects water and energy exchanges and vegetation productivity at the land surface. In this study, an F/T assimilation ...
Global Calibration of the GEOS-5 L-Band Microwave Radiative Transfer Model over Nonfrozen Land Using SMOS Observations
Publisher: American Meteorological Society
Abstract: zero-order (tau-omega) microwave radiative transfer model (RTM) is coupled to the Goddard Earth Observing System, version 5 (GEOS-5) catchment land surface model in preparation for the future assimilation of global brightness ...
Global Soil Water Estimates as Landslide Predictor: The Effectiveness of SMOS, SMAP, and GRACE Observations, Land Surface Simulations, and Data Assimilation
Publisher: American Meteorological Society
Assessment of MERRA-2 Land Surface Hydrology Estimates
Publisher: American Meteorological Society
Abstract: AbstractThe MERRA-2 atmospheric reanalysis product provides global, 1-hourly estimates of land surface conditions for 1980?present at ~50-km resolution. MERRA-2 uses observations-based precipitation to force the land (unlike ...
Satellite-Scale Snow Water Equivalent Assimilation into a High-Resolution Land Surface Model
Publisher: American Meteorological Society
Abstract: Four methods based on the ensemble Kalman filter (EnKF) are tested to assimilate coarse-scale (25 km) snow water equivalent (SWE) observations (typical of passive microwave satellite retrievals) into finescale (1 km) land ...
Assessment and Enhancement of MERRA Land Surface Hydrology Estimates
Publisher: American Meteorological Society
Abstract: he Modern-Era Retrospective Analysis for Research and Applications (MERRA) is a state-of-the-art reanalysis that provides, in addition to atmospheric fields, global estimates of soil moisture, latent heat flux, snow, and ...
The Contributions of Precipitation and Soil Moisture Observations to the Skill of Soil Moisture Estimates in a Land Data Assimilation System
Publisher: American Meteorological Society
Abstract: he contributions of precipitation and soil moisture observations to soil moisture skill in a land data assimilation system are assessed. Relative to baseline estimates from the Modern Era Retrospective-analysis for Research ...