Retrieving cirrus microphysical properties from stellar aureoles

Microphysical properties of subvisible cirrus

On retrieving the microphysical properties of cirrus clouds using the moments of the millimeterwavelength Doppler spectrum

[1] Techniques that use only measurements provided by millimeter-wavelength Doppler radar for retrieving the properties of clouds provide certain practical advantages over techniques that require measurements from multiple instruments. We concentrate on the capacity of the moments of the Doppler spectrum to provide information suitable for retrieving the microphysical properties of cirrus cloud...

Cirrus layer microphysical properties derived from surfacebased millimeter radar and infrared interferometer data

Observational data regarding the properties of cirrus clouds are needed to aid in the development of accurate, physically based parameterizations in climate models. The Atmospheric Radiation Measurement (ARM) program, sponsored by the U.S. Department of Energy, is providing continuous observations of cirrus clouds with a suite of instrumentation at several ocales. In this paper, we describe an ...

Cirrus cloud optical and microphysical properties determined from AIRS infrared spectra

[1] We developed an efficient thermal infrared radiative transfer model on the basis of the delta-four-stream approximation to facilitate high-spectral-resolution remote sensing applications under cirrus cloudy conditions in the Atmospheric Infrared Sounder (AIRS) data. Numerical experiments demonstrated that sensitivity in the 800-1130 cm 1 thermal infrared window spectral region is sufficient...

Aircraft measurements of microphysical properties of subvisible cirrus in the tropical tropopause layer

Subvisible cirrus (SVC) clouds are often observed within the tropical tropopause layer (TTL). Some studies suggest that SVC has a significant impact on the earth radiation budget. The Costa Rica Aura Validation Experiment (CR-AVE) sponsored by the National Aeronautics and Space Administration (NASA) took place near San Jose, Costa Rica from 14 January–15 February 2006. The NASA WB-57F sampled S...