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RISImproving the Representation of Low Clouds and Drizzle in the ECMWF Model Based on ARM Observations from the Azores
Publisher: American Meteorological Society
Abstract: n this study, the representation of marine boundary layer clouds is investigated in the ECMWF model using observations from the Atmospheric Radiation Measurement (ARM) mobile facility deployment to Graciosa Island in the ...
The Impact of Low Clouds on Surface Shortwave Radiation in the ECMWF Model
Publisher: American Meteorological Society
Abstract: he long-term measurement records from the Atmospheric Radiation Measurement site on the Southern Great Plains show evidence of a bias in the ECMWF model?s surface irradiance. Based on previous studies, which have suggested ...
Evaluation of Trade Cumulus in the ECMWF Model with Observations from CALIPSO
Publisher: American Meteorological Society
Abstract: Cloud?Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) are used to assess trade cumulus cloudiness in three versions of the Integrated Forecasting System of the European Centre for Medium-Range Weather ...
Diagnosing Monthly Mean Boundary Layer Properties from Reanalysis Data Using a Bulk Boundary Layer Model
Publisher: American Meteorological Society
Abstract: The mixed-layer approach to modeling the planetary boundary layer (PBL) is particularly well suited to inversion-topped PBLs, such as the stratocumulus-topped boundary layer found off the west coast of America in the ...
On the Representation of High-Latitude Boundary Layer Mixed-Phase Cloud in the ECMWF Global Model
Publisher: American Meteorological Society
Abstract: upercooled liquid water (SLW) layers in boundary layer clouds are abundantly observed in the atmosphere at high latitudes, but remain a challenge to represent in numerical weather prediction (NWP) and climate models. ...
Evaluating Cloud Frequency of Occurrence and Cloud-Top Height Using Spaceborne Lidar Observations
Publisher: American Meteorological Society
Abstract: A strategy for model evaluation using spaceborne lidar observations is presented. Observations from the Geoscience Laser Altimeter System are recast onto the model grid to assess the ability of two versions of the Integrated ...
Local Impact of Stochastic Shallow Convection on Clouds and Precipitation in the Tropical Atlantic
Publisher: American Meteorological Society
ARM’s Impact on Numerical Weather Prediction at ECMWF
Publisher: American Meteorological Society
Understanding Rapid Changes in Phase Partitioning between Cloud Liquid and Ice in Stratiform Mixed-Phase Clouds: An Arctic Case Study
Publisher: American Meteorological Society
Abstract: nderstanding phase transitions in mixed-phase clouds is of great importance because the hydrometeor phase controls the lifetime and radiative effects of clouds. In high latitudes, these cloud radiative effects have a crucial ...