Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2017.06.016 |
Cross-evaluation of reflectivity from the space-borne precipitation radar and multi-type ground-based weather radar network in China | |
Zhong, Lingzhi1; Yang, Rongfang2; Wen, Yixin3; Chen, Lin4; Gou, Yabin5; Li, Ruiyi6; Zhou, Qing6; Hong, Yang7,8 | |
2017-11-01 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2017 |
卷号 | 196 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | China operational weather radar network consists of more than 200 ground-based radars (GR(s)). The lack of unified calibrators often result in poor mosaic products as well as its limitation in radar data assimilation in numerical models. In this study, radar reflectivity and precipitation vertical structures observed from space borne TRMM (Tropical Rainfall Measurement Mission) PR (precipitation radar) and GRs are volumetrically matched and cross-evaluated. It is found that observation of GRs is basically consistent with that of PR. For their overlapping scanning regions, the GRs are often affected by the beam blockage for complex terrain. The statistics show the better agreement among S band A type (SA) radars, S band B type (SB) radars and PR, as well as poor performance of S band C type (SC) radars. The reflectivity offsets between GRs and PR depend on the reflectivity magnitudes: They are positive for weak precipitation and negative for middle and heavy precipitation, respectively. Although the GRs are quite consistent with PR for large sample, an individual GR has its own fluctuated biases monthly. When the sample number is small, the bias statistics may be determined by a single bad GR in a group. Results from this study shed lights that the space-borne precipitation radars could be used to quantitatively calibrate systematic bias existing in different GRs in order to improve the consistency of ground based weather radar network across China, and also bears the promise to provide a robust reference even form a space and ground constellation network for the dual-frequency precipitation radars onboard the satellites anticipated in the near future. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000409290200017 |
WOS关键词 | MEASURING MISSION TRMM ; RAIN PROFILING ALGORITHM ; VERTICAL STRUCTURE ; VALIDATION ; WSR-88D ; QPE ; CALIBRATION ; SATELLITE ; AIRBORNE ; ECHOES |
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/38164 |
专题 | 地球科学 |
作者单位 | 1.Chinese Acad Meteorol & Sci, Beijing, Peoples R China; 2.Hebei Meteorol Bur, Publ Weather Serv Ctr, Tianjin, Peoples R China; 3.Univ Oklahoma, Cooperat Inst Mesoscale Meteorol Studies, Norman, OK 73019 USA; 4.China Meteorol Adm, Natl Satellite Meteorol Ctr, Beijing, Peoples R China; 5.Hangzhou Meteorol Bur, Hangzhou, Zhejiang, Peoples R China; 6.China Meteorol Adm, Meteorol Observat Ctr, Beijing, Peoples R China; 7.Tsinghua Univ, State Key Lab Hydro Sci & Engn, Beijing, Peoples R China; 8.Univ Oklahoma, Sch Civil Engn & Environm Sci, Norman, OK 73019 USA |
推荐引用方式 GB/T 7714 | Zhong, Lingzhi,Yang, Rongfang,Wen, Yixin,et al. Cross-evaluation of reflectivity from the space-borne precipitation radar and multi-type ground-based weather radar network in China[J]. ATMOSPHERIC RESEARCH,2017,196. |
APA | Zhong, Lingzhi.,Yang, Rongfang.,Wen, Yixin.,Chen, Lin.,Gou, Yabin.,...&Hong, Yang.(2017).Cross-evaluation of reflectivity from the space-borne precipitation radar and multi-type ground-based weather radar network in China.ATMOSPHERIC RESEARCH,196. |
MLA | Zhong, Lingzhi,et al."Cross-evaluation of reflectivity from the space-borne precipitation radar and multi-type ground-based weather radar network in China".ATMOSPHERIC RESEARCH 196(2017). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论