An Evaluation of a 94-GHz Radar for Remote Sensing of Cloud Properties
| Autor: | R. M. Peters, Bruce A. Albrecht, Eugene E. Clothiaux, David M. Babb, Johannes Verlinde, Thomas P. Ackerman, Mark A. Miller, William J. Syrett |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Atmospheric Science
Signal processing Meteorology business.industry Attenuation Ocean Engineering Cloud computing law.invention Atmospheric radiative transfer codes law Gamma distribution Calibration Environmental science Radar business Physics::Atmospheric and Oceanic Physics Astrophysics::Galaxy Astrophysics Water vapor Remote sensing |
| Zdroj: | Journal of Atmospheric and Oceanic Technology. 12:201-229 |
| ISSN: | 1520-0426 0739-0572 |
| DOI: | 10.1175/1520-0426(1995)012<0201:aeoagr>2.0.co;2 |
| Popis: | The performance of a 94-GHz radar is evaluated for a variety of cloud conditions. Descriptions of the radar hardware, signal processing, and calibration provide an overview of the radar's capabilities. An important component of the signal processing is the application of two cloud-mask schemes to the data to provide objective estimates of cloud boundaries and to detect significant returns that would otherwise be discarded if a simple threshold method for delectability was applied to the return power. Realistic profiles of atmospheric pressure, temperature, and water vapor are used in a radiative transfer model to address clear-sky attenuation. A physically relevant study of beam extinction and backscattering by clouds is attempted by modeling cloud drop size distributions with a gamma distribution over a range of number concentrations, particle mean diameters, and distribution shape factors; cloud liquid water contents and mean drop size diameters reported in the literature are analyzed in this c... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|