GSTDTAP  > 地球科学
DOI10.1016/j.atmosres.2017.09.009
Comparison of cloud top heights derived from FY-2 meteorological satellites with heights derived from ground-based millimeter wavelength cloud radar
Wang, Zhe1,2,3; Wang, Zhenhui1,2; Cao, Xiaozhong4,5; Tao, Fa4,5
2018
发表期刊ATMOSPHERIC RESEARCH
ISSN0169-8095
EISSN1873-2895
出版年2018
卷号199页码:113-127
文章类型Article
语种英语
国家Peoples R China
英文摘要

Clouds are currently observed by both ground-based and satellite remote sensing techniques. Each technique has its own strengths and weaknesses depending on the observation method, instrument performance and the methods used for retrieval. It is important to study synergistic cloud measurements to improve the reliability of the observations and to verify the different techniques. The FY-2 geostationary orbiting meteorological satellites continuously observe the sky over China. Their cloud top temperature product can be processed to retrieve the cloud top height (CTH). The ground-based millimeter wavelength cloud radar can acquire information about the vertical structure of clouds such as the cloud base height (CBH), CTH and the cloud thickness and can continuously monitor changes in the vertical profiles of clouds. The CTHs were retrieved using both cloud top temperature data from the FY-2 satellites and the cloud radar reflectivity data for the same time period (June 2015 to May 2016) and the resulting datasets were compared in order to evaluate the accuracy of CTH retrievals using FY-2 satellites. The results show that the concordance rate of cloud detection between the two datasets was 78.1%. Higher consistencies were obtained for thicker clouds with larger echo intensity and for more continuous clouds. The average difference in the CTH between the two techniques was 1.46 km. The difference in CTH between low -and mid-level clouds was less than that for high-level clouds. An attenuation threshold of the cloud radar for rainfall was 0.2 mm/min; a rainfall intensity below this threshold had no effect on the CTH. The satellite CTH can be used to compensate for the attenuation error in the cloud radar data.


英文关键词FY-2 satellites Cloud radar Cloud detection Cloud top height
领域地球科学
收录类别SCI-E
WOS记录号WOS:000415908300010
WOS关键词RETRIEVALS ; STATISTICS ; LIDAR
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/38441
专题地球科学
作者单位1.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, CMA Key Lab Aerosol Cloud Precipitat, Nanjing 210044, Jiangsu, Peoples R China;
2.Nanjing Univ Informat Sci & Technol, Sch Atmospher Phys, 219 Ningliulu, Nanjing 210044, Jiangsu, Peoples R China;
3.CMA Training Ctr, Beijing 100081, Peoples R China;
4.CMA Atmosphere Observat Test Bed, Beijing 100081, Peoples R China;
5.CMA Meteorol Observat Ctr, Beijing 100081, Peoples R China
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GB/T 7714
Wang, Zhe,Wang, Zhenhui,Cao, Xiaozhong,et al. Comparison of cloud top heights derived from FY-2 meteorological satellites with heights derived from ground-based millimeter wavelength cloud radar[J]. ATMOSPHERIC RESEARCH,2018,199:113-127.
APA Wang, Zhe,Wang, Zhenhui,Cao, Xiaozhong,&Tao, Fa.(2018).Comparison of cloud top heights derived from FY-2 meteorological satellites with heights derived from ground-based millimeter wavelength cloud radar.ATMOSPHERIC RESEARCH,199,113-127.
MLA Wang, Zhe,et al."Comparison of cloud top heights derived from FY-2 meteorological satellites with heights derived from ground-based millimeter wavelength cloud radar".ATMOSPHERIC RESEARCH 199(2018):113-127.
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