The Use of Microwave Radiometry to Determine a Cloud Seeding Opportunity

J. B. Snider NOAA/ERL/Wave Propagation Loboratory, Boulder, CO 80303

Search for other papers by J. B. Snider in
Current site
Google Scholar
PubMed
Close
and
D. Rottner Office of Atmospheric Resources Research, Bureau of Reclamation, Denver, CO 80225

Search for other papers by D. Rottner in
Current site
Google Scholar
PubMed
Close
Restricted access

Abstract

A ground-based combination microwave radiometer-satellite receiver operating at 28.5 GHz (wavelength = 1.05 cm) was employed to measure liquid water in clouds during the 1979-80 field season of the Sierra Cooperative Pilot Project (SCPP) in northern California. We report upon the ability of the instrument to detect small amounts (∼0.1 g m−3) of liquid water in non-precipitating clouds which may not be observed by other remote sensing systems. A successful cloud seeding experiment, performed after cloud liquid was detected by the instrument, is described.

Abstract

A ground-based combination microwave radiometer-satellite receiver operating at 28.5 GHz (wavelength = 1.05 cm) was employed to measure liquid water in clouds during the 1979-80 field season of the Sierra Cooperative Pilot Project (SCPP) in northern California. We report upon the ability of the instrument to detect small amounts (∼0.1 g m−3) of liquid water in non-precipitating clouds which may not be observed by other remote sensing systems. A successful cloud seeding experiment, performed after cloud liquid was detected by the instrument, is described.

Save