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RISHigh-Speed Photography of Airborne Atmospheric Particles
Publisher: American Meteorological Society
Abstract: Atmospheric particles ?10? in diameter have been successfully photographed in situ using cameras with microsecond-duration flash lamps. Several such cameras developed and used in the past are discussed in this article. A ...
A Color Camera for In Situ Photography of Cloud Particles
Publisher: American Meteorological Society
Abstract: A technique is described for photographing airborne particles using small forward-scattering angles. The sample volume is defined as the region where collimated light beams of two different primary colors overlap. Images ...
A Photographic Technique for Measurements of Atmospheric Particles in situ from Aircraft
Publisher: American Meteorological Society
Abstract: In situ photographs are taken of atmospheric particles with radius 4 ?m and larger with a special particle camera installed on a research sailplane. Ice particle shapes, sizes and concentrations, raindrop sizes and ...
Improved Drop Generators for Calibration of Drop Spectrometers and Use in Laboratory Cloud Physics Experiments
Publisher: American Meteorological Society
Abstract: Drop generators have been developed at NCAR based on the ?wire egression? principle. They are outstanding in their flexibility and simplicity. Drops ranging in diameter from 6 ?m to 1 mm have been generated with one model. ...
The Observed and Computed Microstructure of Hail-Producing Clouds in Northeastern Colorado
Publisher: American Meteorological Society
Abstract: The modification of thunderstorms to suppress hail requires a knowledge of where, when and how much to seed. We show that growth by accretion by precipitating particles (hail, rain and graupel) in a summer convective storm ...
Collating Airborne and Surface Observations of the Microstructure of Precipitating Continental Convective Clouds
Publisher: American Meteorological Society
Abstract: The observational results from sailplane flights into the updrafts of developing cumulus clouds in north-eastern Colorado show some important variations in the microstructure of the cloud droplet and ice particle distributions. ...
The Mechanism of Precipitation Formation in Northeastern Colorado Cumulus II. Sailplane Measurements
Publisher: American Meteorological Society
Abstract: Some cloud microphysical measurements made from the sailplane The Explorer are presented. Drop sizes and concentrations and ice particle sizes, concentrations, shapes, and, in some cases, internal structures are determined ...
Improvements in Cloud Photogrammetry Using Airborne, Side-Looking, Time-Lapse Cameras
Publisher: American Meteorological Society
Abstract: An airborne photographic system, in which the cameras are coupled with an inertial navigation system, was developed and used in a 1978 convective cloud study, Photogrammetric analysis from such a system is enhanced: ...
The Mechanism of Precipitation Formation in Northeastern Colorado Cumulus III. Coordinated Microphysical and Radar Observations and Summary
Publisher: American Meteorological Society
Abstract: Much of the previous work which has led to the conclusion that coalescence is the dominant precipitation forming mechanism in cumulus clouds is reviewed. Observations in northeastern Colorado from several independent methods ...