Evaluation of Dual Polarization Rainfall Estimation Algorithm Applicability in Korea: A Case Study on Biseulsan Radar

C. Yoo, Gildo Kim
{"title":"Evaluation of Dual Polarization Rainfall Estimation Algorithm Applicability in Korea: A Case Study on Biseulsan Radar","authors":"C. Yoo, Gildo Kim","doi":"10.9798/KOSHAM.2016.16.1.281","DOIUrl":null,"url":null,"abstract":"Dual polarization radar provides comprehensive information about rainfall by measuring multiple parameters. In Korea, for the rainfall estimation, JPOLE and CSU-HIDRO algorithms are generally used. This study evaluated the local applicability of JPOLE and CSU-HIDRO algorithms in Korea by using the observed rainfall data collected on the August, 2014 by the Biseulsan dual polarization radar data and KMA AWS. A total of 11,372 pairs of radar-ground rain rate data were classified according to thresholds of synthetic algorithms into suitable and unsuitable data. Then, evaluation criteria were derived by comparing radar rain rate and ground rain rate, respectively, for entire, suitable, and unsuitable data. The results are as follows: (1) The radar rain rate equation including specific differential phase was found better in the rainfall estimation than the other equations for both JPOLE and CSU-HIDRO algorithms. The thresholds were found to be adequately applied for both algorithms including specific differential phase. (2) The radar rain rate equation including horizontal reflectivity and differential reflectivity were found poor compared to the others. The result was not improved even when only the suitable data were applied.","PeriodicalId":23898,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Environmental and Ecological Engineering","volume":"31 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2016-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"World Academy of Science, Engineering and Technology, International Journal of Environmental and Ecological Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.9798/KOSHAM.2016.16.1.281","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1

Abstract

Dual polarization radar provides comprehensive information about rainfall by measuring multiple parameters. In Korea, for the rainfall estimation, JPOLE and CSU-HIDRO algorithms are generally used. This study evaluated the local applicability of JPOLE and CSU-HIDRO algorithms in Korea by using the observed rainfall data collected on the August, 2014 by the Biseulsan dual polarization radar data and KMA AWS. A total of 11,372 pairs of radar-ground rain rate data were classified according to thresholds of synthetic algorithms into suitable and unsuitable data. Then, evaluation criteria were derived by comparing radar rain rate and ground rain rate, respectively, for entire, suitable, and unsuitable data. The results are as follows: (1) The radar rain rate equation including specific differential phase was found better in the rainfall estimation than the other equations for both JPOLE and CSU-HIDRO algorithms. The thresholds were found to be adequately applied for both algorithms including specific differential phase. (2) The radar rain rate equation including horizontal reflectivity and differential reflectivity were found poor compared to the others. The result was not improved even when only the suitable data were applied.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
双极化降雨估计算法在韩国的适用性评价——以碧雪山雷达为例
双极化雷达通过测量多个参数,提供全面的降雨信息。在韩国,对于降雨估计,一般使用JPOLE和CSU-HIDRO算法。本研究利用2014年8月韩国比宰山双极化雷达数据和KMA AWS的观测数据,对JPOLE和CSU-HIDRO算法在韩国的局部适用性进行了评估。根据综合算法的阈值,将11372对雷达-地面雨率数据分为适宜数据和不适宜数据。然后,通过比较雷达降雨率和地面降雨率,分别得出完整、适宜和不适宜数据的评价标准。结果表明:(1)在JPOLE算法和CSU-HIDRO算法中,包含特定差相的雷达雨率方程比其他方程更适合于降雨估计。发现阈值充分适用于两种算法,包括特定的差分相位。(2)包括水平反射率和差分反射率在内的雷达雨率方程较差。即使只使用合适的数据,结果也没有改善。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
Structural Evaluation of Cell-Filled Pavement Wastes of Oil Drilling: Treatment Techniques and Their Effectiveness Natural Ventilation around and through Building: A Numerical Study Experimental Study on Floating Breakwater Anchored by Piles Contextualization and Localization: Acceptability of the Developed Activity Sheets in Science 5 Integrating Climate Change Adaptation
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1