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RISA Model of the Effect of Aerosols on Urban Climates with Particular Applications to the Los Angeles Basin
Publisher: American Meteorological Society
Abstract: A one-dimensional, time-dependent model of the boundary layer has been developed to study the effects of pollutants an local meteorological variables. Radiative terms in the model are computed using a fourstream discrete-ordinate ...
Evaluation of Hydrometeor Occurrence Profiles in the Multiscale Modeling Framework Climate Model Using Atmospheric Classification
Publisher: American Meteorological Society
Abstract: Vertical profiles of hydrometeor occurrence from the multiscale modeling framework (MMF) climate model are compared with profiles observed by a vertically pointing millimeter wavelength cloud radar (located in the U.S. ...
Assessment of Error in Synoptic-Scale Diagnostics Derived from Wind Profiler and Radiosonde Network Data
Publisher: American Meteorological Society
Abstract: A topic of current practical interest is the accurate characterization of the synoptic-scale atmospheric state from wind profiler and radiosonde network observations. The authors have examined several related and commonly ...
Surface Measurements of Solar Irradiance: A Study of the Spatial Correlation between Simultaneous Measurements at Separated Sites
Publisher: American Meteorological Society
Abstract: Pyranometers have been used for many years to measure broadband surface incoming solar irradiance, data that is necessary for surface energy budget, cloud forcing, and satellite validation research. Because such measurements ...
A Simple Formulation of the Delta-Four-Stream Approximation for Radiative Transfer Parameterizations
Publisher: American Meteorological Society
Abstract: We present a systematic development of the delta-four-stream approximation for calculations of radiative fluxes in planetary atmospheres. We illustrate that an analytic solution for this approximation can be derived ...
The Delta-Four-Stream Approximation for Radiative Flux Transfer
Publisher: American Meteorological Society
Abstract: We present an approximate technique for solving the radiative transfer problem for fluxes reflected, transmitted, and absorbed by a homogeneous scattering layer. The technique is a straightforward ?delta-function? modification ...
Climatology of Warm Boundary Layer Clouds at the ARM SGP Site and Their Comparison to Models
Publisher: American Meteorological Society
Abstract: A 4-yr climatology (1997?2000) of warm boundary layer cloud properties is developed for the U.S. Department of Energy Atmospheric Radiation Measurement (ARM) Program Southern Great Plains (SGP) site. Parameters in the ...
Infrared Radiative Transfer in Polluted Atmospheres
Publisher: American Meteorological Society
Abstract: A four-stream, multi-layered radiative transfer model has been developed to treat the problem of the transfer of infrared radiation in an atmosphere containing both scatterers and absorbers. Each atmospheric layer is ...
Radiative Impacts of Anvil Cloud during the Maritime Continent Thunderstorm Experiment
Publisher: American Meteorological Society
Abstract: In this study the radiative impact of three separate cirrus anvil systems that occurred during the Maritime Continent Thunderstorm Experiment is investigated. Retrievals of microphysical cloud properties and an independent ...
Satellite Retrieval of Lower-Tropospheric Ice Crystal Clouds in the Polar Regions
Publisher: American Meteorological Society
Abstract: This paper investigates the satellite detection of low-level ice crystal clouds in the Arctic using a radiative transfer model and aircraft observations for six cases. Brightness temperatures at the top of the atmosphere ...