Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s00704-016-1884-9 |
Trends of precipitation extreme indices over a subtropical semi-arid area using PERSIANN-CDR | |
Katiraie-Boroujerdy, Pari-Sima1; Ashouri, Hamed2; Hsu, Kuo-lin2; Sorooshian, Soroosh2 | |
通讯作者 | Katiraie-Boroujerdy, Pari-Sima |
来源期刊 | THEORETICAL AND APPLIED CLIMATOLOGY
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ISSN | 0177-798X |
EISSN | 1434-4483 |
出版年 | 2017 |
卷号 | 130期号:1-2页码:249-260 |
英文摘要 | In this study, satellite-based daily precipitation estimation data from precipitation estimation from remotely sensed information using artificial neural networks (PERSIANN)-climate data record (CDR) are being evaluated in Iran. This dataset (0.25A degrees, daily), which covers over three decades of continuous observation beginning in 1983, is evaluated using rain-gauge data for the period of 1998-2007. In addition to categorical statistics and mean annual amount and number of rainy days, ten standard extreme indices were calculated to observe the behavior of daily extremes. The results show that PERSIANN-CDR exhibits reasonable performance associated with the probability of detection and false-alarm ratio, but it overestimates precipitation in the area. Although PERSIANN-CDR mostly underestimates extreme indices, it shows relatively high correlations (between 0.6316-0.7797) for intensity indices. PERSIANN-CDR data are also used to calculate the trend in annual amounts of precipitation, the number of rainy days, and precipitation extremes over Iran covering the period of 1983-2012. Our analysis shows that, although annual precipitation decreased in the western and eastern regions of Iran, the annual number of rainy days increased in the northern and northwestern areas. Statistically significant negative trends are identified in the 90th percentile daily precipitation, as well as the mean daily precipitation from wet days in the northern part of the study area. The positive trends of the maximum annual number of consecutive dry days in the eastern regions indicate that the dry periods became longer in these arid areas. |
类型 | Article |
语种 | 英语 |
国家 | Iran ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000410769100018 |
WOS关键词 | CLIMATE EXTREMES ; SATELLITE-OBSERVATIONS ; FREQUENCY ; PRODUCTS ; 20TH-CENTURY ; TEMPERATURE ; INDICATORS ; RAINFALL ; CHINA ; IRAN |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/202679 |
作者单位 | 1.Islamic Azad Univ, Tehran North Branch, Fac Marine Sci & Technol, Tehran, Iran; 2.Univ Calif Irvine, Henry Samueli Sch Engn, Dept Civil & Environm Engn, Ctr Hydrometeorol & Remote Sensing, Irvine, CA 92697 USA |
推荐引用方式 GB/T 7714 | Katiraie-Boroujerdy, Pari-Sima,Ashouri, Hamed,Hsu, Kuo-lin,et al. Trends of precipitation extreme indices over a subtropical semi-arid area using PERSIANN-CDR[J],2017,130(1-2):249-260. |
APA | Katiraie-Boroujerdy, Pari-Sima,Ashouri, Hamed,Hsu, Kuo-lin,&Sorooshian, Soroosh.(2017).Trends of precipitation extreme indices over a subtropical semi-arid area using PERSIANN-CDR.THEORETICAL AND APPLIED CLIMATOLOGY,130(1-2),249-260. |
MLA | Katiraie-Boroujerdy, Pari-Sima,et al."Trends of precipitation extreme indices over a subtropical semi-arid area using PERSIANN-CDR".THEORETICAL AND APPLIED CLIMATOLOGY 130.1-2(2017):249-260. |
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