DOI: 10.1002/2015GL064809
论文题名: Linear relation between convective cloud base height and updrafts and application to satellite retrievals
作者: Zheng Y. ; Rosenfeld D.
刊名: Geophysical Research Letters
ISSN: 0094-8608
EISSN: 1944-8339
出版年: 2015
卷: 42, 期: 15 起始页码: 6485
结束页码: 6491
语种: 英语
英文关键词: cloud base updrafts
; satellite retrieval
Scopus关键词: Balloons
; Boundary layers
; Mean square error
; Optical radar
; Radar
; Satellites
; Space-based radar
; Weather forecasting
; Cloud base
; European centre for medium-range weather forecasts
; Mean absolute percentage error
; Planetary boundary layers
; Radiation measurements
; RMSE (root mean square error)
; Satellite retrieval
; Southern great plains
; Radar measurement
; boundary layer
; convective cloud
; Doppler effect
; Doppler lidar
; Doppler radar
; height
; linearity
; satellite imagery
; updraft
; weather forecasting
; Amazonia
; California
; Great Plains
; Hawaii [United States]
; Hawaiian Islands
; Honolulu
; Los Angeles [California]
; Oahu
; United States
英文摘要: Measurements done by the Department of Energy/Atmospheric Radiation Measurement program, at the Southern Great Plains, the central Amazon, and on board an oceangoing ship between Honolulu and Los Angeles, show that updraft speeds measured by Doppler lidar and 95 GHz cloud radar are tightly linearly correlated with cloud base height (Hb). Based on these relationships, a method of satellite retrieval of maximum (Wmax) and cloud base (Wb) updraft speeds in cloud topped planetary boundary layer is proposed. Hb, as an input for updraft estimation, is obtained from satellite-retrieved cloud base temperature in combination with 2 m air temperature derived from European Centre for Medium-Range Weather Forecasts reanalysis. Validation by the lidar and radar measurements shows good agreements for the satellite retrieval of Wmax with RMSE (root-mean-square error) = 0.38 m/s and MAPE (mean absolute percentage error) = 19% and Wb with RMSE = 0.34 m/s and MAPE = 21%. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84940447702&doi=10.1002%2f2015GL064809&partnerID=40&md5=696829acf92b55fc8c7c8937d09656f5
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8224
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Atmospheric and Oceanic Science, Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, United States
Recommended Citation:
Zheng Y.,Rosenfeld D.. Linear relation between convective cloud base height and updrafts and application to satellite retrievals[J]. Geophysical Research Letters,2015-01-01,42(15).