Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.5984 |
Hydrological severity assessment of extreme climate conditions | |
Park, Jongmin1; Baik, Jongjin2; Choi, Minha3; Jeong, Jaehwan3; Sur, Chanyang4 | |
2019-04-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2019 |
卷号 | 39期号:5页码:2725-2736 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; South Korea |
英文摘要 | The management of water resources is challenging under extreme climate conditions with the acceleration of climate change. Many existing indices for analysing extreme climate conditions focus on the statistical behaviour of a single hydrological variable, such as precipitation or temperature. Such indices have limitations in providing a comprehensive interpretations of elaborate extreme climate conditions. In this study, the hydrological severity index (HSI), which is defined as the ratio of precipitation to the sum of evapotranspiration, runoff, and terrestrial water storage from the water balance equation, was proposed and calculated using Global Land Data Assimilation System datasets for 1980-2010. Mean HSI was relatively high in tropical regions due to the high sensitivity of precipitation, while it was relatively low in semi-arid and arid regions due to low precipitation and high evaporative demand. HSI showed a good representation of hydrological severity based on the spatial pattern of the absolute correlation coefficient as well as the opposite pattern of the coefficient of variation calculated from HSI and the radiative index of dryness. Based on the aforementioned phenomenon, temporal anomaly HSI (HSIanom) was applied to Pakistan and Australia as case studies to analyse the 2010 Pakistan Flooding and the Australian Millennium Drought (especially in 2002 and 2006). The HSIanom was able to capture the severity of extreme climate events and to provide underlying causes accompanying the physical climate forcing system. Specifically, the spatial pattern of HSIanom was useful for analysing regions with high severity to extreme climate conditions. The HSI can be used to establish water management policies that consider regional hydrological features in order to cope with intensified climate change. In addition, stand-alone HSI could be used to predict future climate trends based on precise simulations of hydrological variables. |
英文关键词 | climate change extreme climate conditions GLDAS hydrological severity index |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000467048900016 |
WOS关键词 | PRECIPITATION EXTREMES ; FLOOD ; WATER ; DROUGHT ; ARIDITY ; TEMPERATURE ; VARIABILITY ; ATTRIBUTION ; SENSITIVITY ; RAINFALL |
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/182124 |
专题 | 气候变化 |
作者单位 | 1.Univ Maryland, Dept Civil & Environm Engn, College Pk, MD 20742 USA; 2.Sungkyunkwan Univ, Ctr Built Environm, Suwon, South Korea; 3.Sungkyunkwan Univ, Dept Water Resources, Suwon, South Korea; 4.Joongbu Univ, Drought Res Ctr, Goyang, South Korea |
推荐引用方式 GB/T 7714 | Park, Jongmin,Baik, Jongjin,Choi, Minha,et al. Hydrological severity assessment of extreme climate conditions[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019,39(5):2725-2736. |
APA | Park, Jongmin,Baik, Jongjin,Choi, Minha,Jeong, Jaehwan,&Sur, Chanyang.(2019).Hydrological severity assessment of extreme climate conditions.INTERNATIONAL JOURNAL OF CLIMATOLOGY,39(5),2725-2736. |
MLA | Park, Jongmin,et al."Hydrological severity assessment of extreme climate conditions".INTERNATIONAL JOURNAL OF CLIMATOLOGY 39.5(2019):2725-2736. |
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