气候变化领域集成服务门户(CCPortal): Space-Based Analysis of the Cloud Thermodynamic Phase Transition for Varying Microphysical and Meteorological Regimes

CCPortal

DOI	10.1029/2020GL087122
	Space-Based Analysis of the Cloud Thermodynamic Phase Transition for Varying Microphysical and Meteorological Regimes
	Coopman Q.; Riedi J.; Zeng S.; Garrett T.J.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:6
英文摘要	Phase transitions leading to cloud glaciation occur at temperatures that vary between (Formula presented.) 38°C and 0°C depending on aerosol types and concentrations, the meteorology, and cloud microphysical and macrophysical parameters, although the relationships remain poorly understood. Here, we statistically retrieve a cloud glaciation temperature from two passive space-based instruments that are part of the NASA/CNES A-Train, the POLarization and Directionality of the Earth's Reflectances (POLDER) and the MODerate resolution Imaging Spectroradiometer (MODIS). We compare the glaciation temperature for varying bins of cloud droplet effective radius, latitude, and large-scale vertical pressure velocity and specific humidity at 700 hPa. Cloud droplet size has the strongest influence on glaciation temperature: For cloud droplets larger than 21 (Formula presented.) m, the glaciation temperature is 6°C higher than for cloud droplets smaller than 9 (Formula presented.) m. Stronger updrafts are also associated with lower glaciation temperatures. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Clouds; Drops; Earth (planet); NASA; Phase transitions; Radiometers; Satellites; Temperature; Cloud droplets; Cloud glaciation; Effective radius; glaciation; Meteorological parameters; Moderate resolution imaging spectroradiometer; Specific humidity; Vertical pressure; Glacial geology; aerosol; cloud droplet; glaciation; MODIS; phase transition; polarization; satellite data; temperature gradient; thermodynamics
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170586
作者单位	Univ. Lille, CNRS, UMR 8518 - LOA - Laboratoire d’Optique Atmosphérique, Lille, France; Department of Atmospheric Sciences, University of Utah, Salt Lake City, UT, United States; Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, Karlsruhe, Germany; NASA Langley Research Center, Hampton, VA, United States
推荐引用方式 GB/T 7714	Coopman Q.,Riedi J.,Zeng S.,et al. Space-Based Analysis of the Cloud Thermodynamic Phase Transition for Varying Microphysical and Meteorological Regimes[J],2020,47(6).
APA	Coopman Q.,Riedi J.,Zeng S.,&Garrett T.J..(2020).Space-Based Analysis of the Cloud Thermodynamic Phase Transition for Varying Microphysical and Meteorological Regimes.Geophysical Research Letters,47(6).
MLA	Coopman Q.,et al."Space-Based Analysis of the Cloud Thermodynamic Phase Transition for Varying Microphysical and Meteorological Regimes".Geophysical Research Letters 47.6(2020).