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DOI | 10.1016/j.atmosres.2017.08.008 |
Tropical echo-top height for precipitating clouds observed by multiple active instruments aboard satellites | |
Chen, Yilun; Fu, Yunfei | |
2018 | |
发表期刊 | ATMOSPHERIC RESEARCH
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ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2018 |
卷号 | 199页码:54-61 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | The echo-top height observed by the Tropical Rainfall Measuring Mission (TRMM) precipitation radar (PR) has been used by some studies as an approximate calculation of the precipitating-cloud-top height to simulate radiative forcing or to identify overshooting convection. However, due to the low sensitivity (similar to 17 dBZ) of PR, the PR-echo-top height is lower than the actual precipitating-cloud-top height. Here, the echo-top heights of the tropical precipitating cloud detected by PR, the Cloud Profiling Radar (CPR), and the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) were investigated to evaluate the underestimation of the PR-echo-top height to the actual precipitating-cloud-top height. The results show that there were significant spatial variations in the underestimates of precipitating-cloud-top height by PR. The model simulation showed that these underestimates led to an underestimation of the radiative forcing of the Earth system, the relative error of which was similar to 10% with 1-km underestimation and similar to 20% to 80% with 7-km underestimation when the cloud optical thickness was fixed to 10. Therefore, the underestimates of precipitating-cloud-top height by PR should be taken into consideration when using PR-echo-top height. |
英文关键词 | Echo-top height PR CPR CALIOP Radiative forcing |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000415908300005 |
WOS关键词 | WARM RAIN ; TRMM PR ; RADAR ; CONVECTION ; SUBTROPICS ; ALGORITHM ; MISSION ; SBDART |
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/38081 |
专题 | 地球科学 |
作者单位 | Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Anhui, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Yilun,Fu, Yunfei. Tropical echo-top height for precipitating clouds observed by multiple active instruments aboard satellites[J]. ATMOSPHERIC RESEARCH,2018,199:54-61. |
APA | Chen, Yilun,&Fu, Yunfei.(2018).Tropical echo-top height for precipitating clouds observed by multiple active instruments aboard satellites.ATMOSPHERIC RESEARCH,199,54-61. |
MLA | Chen, Yilun,et al."Tropical echo-top height for precipitating clouds observed by multiple active instruments aboard satellites".ATMOSPHERIC RESEARCH 199(2018):54-61. |
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