Island based radar and microwave radiometer measurements of stratus cloud parameters during the Atlantic Stratocumulus Transition Experiment (ASTEX)
- Colorado State Univ., Fort Collins, CO (United States)
- NOAA Environmental Technology Lab., Boulder, CO (United States)
- National Center for Atmospheric Research, Boulder, CO (United States)
During the Atlantic Stratocumulus Transition Experiment (ASTEX) in June 1992, simultaneous measurements were made with a vertically pointing cloud sensing radar and a microwave radiometer. The radar measurements are used to estimate stratus cloud drizzle and turbulence parameters. In addition, with the microwave radiometer measurements of reflectivity, we estimated the profiles of cloud liquid water and effective radius. We used radar data for computation of vertical profiles of various drizzle parameters such as droplet concentration, modal radius, and spread. A sample of these results is shown in Figure 1. In addition, in non-drizzle clouds, with the radar and radiometer we can estimate the verticle profiles of stratus cloud parameters such as liquid water concentration and effective radius. This is accomplished by assuming a droplet distribution with droplet number concentration and width constant with height.
- Research Organization:
- USDOE Office of Energy Research, Washington, DC (United States). Environmental Sciences Div.
- OSTI ID:
- 263514
- Report Number(s):
- CONF-9503140-; ON: DE96010942; TRN: 96:003652-0018
- Resource Relation:
- Conference: 5. atmospheric radiation measurement (ARM) science team meeting, San Diego, CA (United States), 19-23 Mar 1995; Other Information: PBD: Apr 1996; Related Information: Is Part Of Proceedings of the fifth Atmospheric Radiation Measurement (ARM) science team meeting; PB: 421 p.
- Country of Publication:
- United States
- Language:
- English
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