| contributor author | Chylek, Petr | |
| contributor author | Ramaswamy, V. | |
| date accessioned | 2017-06-09T14:22:48Z | |
| date available | 2017-06-09T14:22:48Z | |
| date copyright | 1982/01/01 | |
| date issued | 1982 | |
| identifier issn | 0022-4928 | |
| identifier other | ams-18279.pdf | |
| identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4154266 | |
| description abstract | We have derived a simple approximation for the emissivity and flux emissivity of water clouds inside the atmospheric window between 8 and 14 m. In our approximation the emissivity in the 8?11.5 m band is a function only of the cloud's liquid water content and cloud thickness. When compared with the exact radiative transfer calculations the broad-band flux emissivities (in the 8?11.5 m region) differ by less than 10%. At wavelengths > 11.5 m the emissivity is a function of the droplet size distribution as well. By considering a typical droplet size distribution for stratus, altostratus and cumulus clouds, we have shown that the effect of the size distribution on the broad-band flux emissivity in the 8?14 m band is about 35%. Our approximation should be useful for treatment of cloud infrared properties in climate models. | |
| publisher | American Meteorological Society | |
| title | Simple Approximation for Infrared Emissivity of Water Clouds | |
| type | Journal Paper | |
| journal volume | 39 | |
| journal issue | 1 | |
| journal title | Journal of the Atmospheric Sciences | |
| identifier doi | 10.1175/1520-0469(1982)039<0171:SAFIEO>2.0.CO;2 | |
| journal fristpage | 171 | |
| journal lastpage | 177 | |
| tree | Journal of the Atmospheric Sciences:;1982:;Volume( 039 ):;issue: 001 | |
| contenttype | Fulltext | |
