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RISIntercomparison of Soil Moisture Memory in Two Land Surface Models
Publisher: American Meteorological Society
Abstract: A heavy rain or a dry period can produce an anomaly in soil moisture, and the dissipation of this anomaly may take weeks to months. It is important to understand how land surface models (LSMs) used with atmospheric general ...
AGCM Biases in Evaporation Regime: Impacts on Soil Moisture Memory and Land–Atmosphere Feedback
Publisher: American Meteorological Society
Abstract: Because precipitation and net radiation in an atmospheric general circulation model (AGCM) are typically biased relative to observations, the simulated evaporative regime of a region may be biased, with consequent negative ...
A Data-Driven Approach for Daily Real-Time Estimates and Forecasts of Near-Surface Soil Moisture
Publisher: American Meteorological Society
Abstract: ASA?s Soil Moisture Active Passive (SMAP) mission provides global surface soil moisture retrievals with a revisit time of 2?3 days and a latency of 24 h. Here, to enhance the utility of the SMAP data, an approach is presented ...
Assimilation of Satellite-Derived Skin Temperature Observations into Land Surface Models
Publisher: American Meteorological Society
Abstract: Land surface (or ?skin?) temperature (LST) lies at the heart of the surface energy balance and is a key variable in weather and climate models. In this research LST retrievals from the International Satellite Cloud Climatology ...
Impact of Subsurface Temperature Variability on Surface Air Temperature Variability: An AGCM Study
Publisher: American Meteorological Society
Abstract: Anomalous atmospheric conditions can lead to surface temperature anomalies, which in turn can lead to temperature anomalies in the subsurface soil. The subsurface soil temperature (and the associated ground heat content) ...
Soil Moisture Initialization Error and Subgrid Variability of Precipitation in Seasonal Streamflow Forecasting
Publisher: American Meteorological Society
Abstract: ffline simulations over the conterminous United States (CONUS) with a land surface model are used to address two issues relevant to the forecasting of large-scale seasonal streamflow: (i) the extent to which errors in soil ...
Improved Hydrological Simulation Using SMAP Data: Relative Impacts of Model Calibration and Data Assimilation
Publisher: American Meteorological Society
Abstract: AbstractThe assimilation of remotely sensed soil moisture information into a land surface model has been shown in past studies to contribute accuracy to the simulated hydrological variables. Remotely sensed data, however, ...
Land Surface Precipitation in MERRA-2
Publisher: American Meteorological Society
Abstract: AbstractThe Modern-Era Retrospective Analysis for Research and Applications, version 2 (MERRA-2), features several major advances from the original MERRA reanalysis, including the use, outside of high latitudes, of ...
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 ...
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 ...