The Effects of Cloud Liquid Water on Polarized Radiative Transfer Calculations During Snowfall at Microwave Band
| Autor: | Weiliang Liu, Xinxin Xie, Weimin Yu, Yaohai Dong, Hongxin Xu |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010504 meteorology & atmospheric sciences
Polarimetry Atmospheric model Atmospheric sciences Snow Polarization (waves) 01 natural sciences 010305 fluids & plasmas Brightness temperature 0103 physical sciences Microwave band Radiative transfer Environmental science Supercooling 0105 earth and related environmental sciences |
| Zdroj: | IGARSS |
| Popis: | This paper analyzes the effects of cloud supercooled liquid water (SCLW) on the polarization difference (PD) and brightness temperature (TB) generated by horizontally oriented snow particles at microwave band. Radiative transfer (RT) calculations from six realistic snowfall profiles selected from European Centre for Medium-Range Weather Forecasts (ECMWF) datasets indicate, that the existence of SCLW has noticeable impact on PD and TB at three window frequencies (150 GHz, 243 GHz and 664 GHz) for, respectively, light, median and heavy snowfall in dry and wet air conditions. It is implied that accurate information on liquid water is required to interpret polarimetric observations of ice clouds and snowfall for future satellite missions. |
| Databáze: | OpenAIRE |
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