DOI: 10.1002/2015JD023489
论文题名: Estimating the vertical profiles of cloud water content in warm rain clouds
作者: Li R. ; Guo J. ; Fu Y. ; Min Q. ; Wang Y. ; Gao X. ; Dong X.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2015
卷: 120, 期: 19 起始页码: 10250
结束页码: 10266
语种: 英语
英文关键词: cloud water content
; satellite remote sensing
; warm rains
Scopus关键词: algorithm
; cloud water
; CloudSat
; latent heat flux
; moisture content
; particle size
; precipitation (climatology)
; remote sensing
; satellite data
; vertical distribution
; warm front
; weather forecasting
英文摘要: The cloud water content (CWC) in rainy clouds is a crucial parameter to determine the onset and the growth rate of precipitation and to quantify the associated latent heating rate. No direct retrieval of CWC in rainy cloud from satellite observations is reported due to the difficulties of separating cloud particles from precipitation-sized particles. However, based on multiple cloud simulations from the Weather and Research Forecasting (WRF) model, we have found that the CWC profile in warm rains can be well determined by three macrophysical cloud properties of cloud water path (CWP), cloud top height (CTH), and cloud bottom height (CBH). The CBH can be estimated using CWP, CTH, and near-surface rain rate. We proposed an algorithm with a look-up table for estimating the CWC profile using CWP, CTH, and near-surface rain rate as inputs. The performance of this algorithm was tested with WRF model simulations and a real drizzle case observed by the CloudSat satellite. Testing verified that the algorithm can retrieve the vertical distribution of CWC correctly with few errors at different spatiotemporal scales. In addition, the algorithm is not confined to particular microphysics schemes and is valid for multiple cloud systems in different areas over the world. This algorithm is expected to improve current knowledge of cloud water content in rainy clouds. ©2015. American Geophysical Union. All Rights Reserved. 资助项目: 41075041
; 41230419
; 41375030
; 41375148
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63007
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Key Laboratory of the Atmospheric Composition and Optical Radiation, CAS, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China; Atmospheric Science Research Center, State University of New York, Albany, NY, United States; State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, China; Laboratory of Atmospheric Physico-Chemistry, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, China
Recommended Citation:
Li R.,Guo J.,Fu Y.,et al. Estimating the vertical profiles of cloud water content in warm rain clouds[J]. Journal of Geophysical Research: Atmospheres,2015-01-01,120(19)