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RISSynoptic Variability of Low-Cloud Properties and Meteorological Parameters in the Subtropical Trade Wind Boundary Layer
Publisher: American Meteorological Society
Abstract: Synoptic variability of low-cloud properties, temperature advection, and thermodynamic soundings of the trade wind boundary layer are analyzed, using the long data record from ocean weather station November (30°N, 140°W). ...
Mechanisms Affecting the Transition from Shallow to Deep Convection over Land: Inferences from Observations of the Diurnal Cycle Collected at the ARM Southern Great Plains Site
Publisher: American Meteorological Society
Abstract: Summertime observations for 11 yr from the Atmospheric Radiation Measurement (ARM) Climate Research Facility Southern Great Plains (SGP) site are used to investigate mechanisms controlling the transition from shallow to ...
Factors Controlling the Vertical Extent of Fair-Weather Shallow Cumulus Clouds over Land: Investigation of Diurnal-Cycle Observations Collected at the ARM Southern Great Plains Site
Publisher: American Meteorological Society
Abstract: ummertime observations for 13 yr at the Atmospheric Radiation Measurement Southern Great Plains site are used to study fair-weather shallow cumuli (ShCu). To roughly separate forced from active ShCu, days are categorized ...
Validation and Sensitivities of Frontal Clouds Simulated by the ECMWF Model
Publisher: American Meteorological Society
Abstract: Clouds simulated by the European Centre for Medium-Range Weather Forecasts (ECMWF) model are composited to derive the typical organization of clouds surrounding a midlatitude baroclinic system. Comparison of this composite ...
Low Cloud Type over the Ocean from Surface Observations. Part III: Relationship to Vertical Motion and the Regional Surface Synoptic Environment
Publisher: American Meteorological Society
Abstract: Composite large-scale dynamical fields contemporaneous with low cloud types observed at midlatitude Ocean Weather Station (OWS) C and eastern subtropical OWS N are used to establish representative relationships between low ...
Using Stochastically Generated Subcolumns to Represent Cloud Structure in a Large-Scale Model
Publisher: American Meteorological Society
Abstract: A new method for representing subgrid-scale cloud structure in which each model column is decomposed into a set of subcolumns has been introduced into the Geophysical Fluid Dynamics Laboratory?s global atmospheric model ...
The Seasonal Cycle of Low Stratiform Clouds
Publisher: American Meteorological Society
Abstract: The seasonal cycle of low stratiform clouds is studied using data from surface-based cloud climatologies. The impact of low clouds on the radiation budget is illustrated by comparison of data from the Earth Radiation Budget ...
Seasonal Variations of Tropical Intraseasonal Oscillations: A 20–25-Day Oscillation in the Western Pacific
Publisher: American Meteorological Society
Abstract: Spectral analysis within a movable time window is used to investigate the frequency and intensity of tropical oscillations with intraseasonal time scales. Surface and rawinsonde time series from several locations in the ...
Computing and Partitioning Cloud Feedbacks Using Cloud Property Histograms. Part I: Cloud Radiative Kernels
Publisher: American Meteorological Society
Abstract: his study proposes a novel technique for computing cloud feedbacks using histograms of cloud fraction as a joint function of cloud-top pressure (CTP) and optical depth (τ). These histograms were generated by the International ...