Observed extinction by clouds at 95 GHz

Author

Vali, Gabor ; Haimov, Samuel

Author_Institution

Dept. of Atmos. Sci., Wyoming Univ., Laramie, WY, USA

Volume

39

Issue

1

fYear

2001

fDate

1/1/2001 12:00:00 AM

Firstpage

190

Lastpage

193

Abstract

Measurements of backscattered power were made in maritime stratus clouds with a 95 GHz radar mounted on an aircraft. The aircraft also carried probes for in situ cloud measurements of liquid water content (LWC) and hydrometeor size distribution. Horizontal flight segments of 5-10 km length, over which the LWC was relatively uniform, were selected for analysis. Mean values of LWC ranged from 0.05 to 0.8 g/m³. The observations yielded an extinction coefficient of 4.6 dB/km per g/m³ of cloud water

Keywords

airborne radar; atmospheric techniques; backscatter; clouds; meteorological radar; millimetre wave propagation; radar cross-sections; remote sensing by radar; tropospheric electromagnetic wave propagation; 95 GHz; EHF; atmosphere; backscatter; backscattered power; cloud; extinction; hydrometeor size; liquid water content; maritime stratus; measurement technique; meteorological radar; mm wave; radar remote sensing; radar scattering; radiowave propagation; Airborne radar; Aircraft; Attenuation; Clouds; Millimeter wave radar; Radar antennas; Radar measurements; Radar remote sensing; Reflectivity; Size measurement;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.898682

Filename

898682