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DOI | 10.1002/joc.6049 |
Performance of a simple reanalysis proxy for US cloud-to-ground lightning | |
Tippett, Michael K.1; Lepore, Chiara2; Koshak, William J.3; Chronis, Themis4; Vant-Hull, Brian5 | |
2019-08-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
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ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2019 |
卷号 | 39期号:10页码:3932-3946 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The product of convective available potential energy (CAPE) and precipitation rate has previously been used as a proxy for cloud-to-ground (CG) lightning flash counts in climate change applications. Here, the ability of this proxy, denoted CP, to represent the climatology and variability of CG lightning flash counts over the contiguous United States (CONUS) during the period 2003-2016 is assessed. CP values computed using the North American Regional Reanalysis are compared with negative and positive polarity CG flash counts from the National Lightning Detection Network. Overall, the proxy performs better on shorter time scales (daily and monthly) than on longer time scales (annual and semi-annual). Proxy performance tends to be worse during the warm season (May-October), when most lightning occurs, and better during the cool season (November-April). The correlation of annually accumulated CONUS CP with CG flash counts is not statistically significant because of poor warm-season performance. Cool season negative CG flash counts are well correlated with CONUS CP values. Positive CG flash counts (similar to 7% of all CG flashes) are well correlated with annual values of CONUS CP. The relatively strong relations between CP and CG flash counts in some regions and times of the year at daily resolution provide a benchmark for more complex proxies and suggest that proxy-based extended- and long-range prediction of lightning activity may be feasible to the extent that precipitation rate and CAPE can be predicted. |
英文关键词 | observational data analysis physical phenomenon rainfall thunderstorms lightning atmospheric electricity tools and methods |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000479031900003 |
WOS关键词 | UNITED-STATES ; TROPICAL CYCLONE ; CHARGE STRUCTURE ; PRECIPITATION ; VARIABILITY ; TORNADO ; MODEL ; PARAMETERIZATION ; PREDICTABILITY ; ENVIRONMENTS |
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/185682 |
专题 | 气候变化 |
作者单位 | 1.Columbia Univ, Dept Appl Phys & Appl Math, 500 West 120th St, New York, NY 10027 USA; 2.Columbia Univ, Lamont Doherty Earth Observ, New York, NY USA; 3.NASA, Marshall Space Flight Ctr, Earth Sci Branch, Huntsville, AL USA; 4.Univ Alabama, Dept Phys, Huntsville, AL 35899 USA; 5.CUNY, Cooperat Ctr Earth Syst Sci & Remote Sensing Tech, New York, NY USA |
推荐引用方式 GB/T 7714 | Tippett, Michael K.,Lepore, Chiara,Koshak, William J.,et al. Performance of a simple reanalysis proxy for US cloud-to-ground lightning[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019,39(10):3932-3946. |
APA | Tippett, Michael K.,Lepore, Chiara,Koshak, William J.,Chronis, Themis,&Vant-Hull, Brian.(2019).Performance of a simple reanalysis proxy for US cloud-to-ground lightning.INTERNATIONAL JOURNAL OF CLIMATOLOGY,39(10),3932-3946. |
MLA | Tippett, Michael K.,et al."Performance of a simple reanalysis proxy for US cloud-to-ground lightning".INTERNATIONAL JOURNAL OF CLIMATOLOGY 39.10(2019):3932-3946. |
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