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DOI | 10.1002/joc.4739 |
Quantifying the changing properties of climate extremes in Guangdong Province using individual and integrated climate indices | |
He, Yanhu1,2; Lin, Kairong1; Tang, Guoping1; Chen, Xiaohong1; Guo, Shenglian3; Gui, Faliang2 | |
2017-02-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2017 |
卷号 | 37期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | The temporal and spatial trends of four climate extreme indices for Guangdong Province of China were calculated based on observed daily precipitation, daily maximum, and daily minimum temperatures at 24 weather stations as well as the frequency of typhoon events during the period of 1957-2013. An integrated extreme climatic index (IECI) was derived from four individual climate extreme indices (high temperature days (H-td), low temperature days (L-td), intensive precipitation days (I-pd) and number of typhoon events (TT)), considering their weights using an information theory model. A simple linear regression model was utilized to analyze the spatiotemporal trends of the climate extremes. The correlation analysis between the above extreme climatic indices and the socioeconomic losses [affected area of crops (AAC), direct losses of the economy (DLE), and affected population (AP)] was calculated. The results indicate that H-td increased while L-td decreased significantly at the 5% significance level. By contrast, there were no significant long-term changes in I-pd and TT. The rate of change of IECI was 0.006 per decade and no long-term trend was detected in IECI. Spatially, a positive trend was observed in the Yuexi River Basin (YXRB) for I-pd, while a negative trend was found in the East River Basin (ERB). L-td followed an opposite spatial pattern to that of H-td. Extreme temperature days occurred more frequently in the Pearl River Delta (PRD) than in other parts of Guangdong Province. Regions with positive IECI rates of change were mostly in the YXRB, the coastal area of the Yuedong River Basin (YDRB) and the northern and southern part of the ERB. The correlation coefficients between IECI and AAC, DLE, and AP are 0.375, 0.424 and 0.603, respectively. In general, IECI correlated more strongly with the loss indices caused by extreme climatic events than did the four individual extreme climatic indices. |
英文关键词 | IECI climate extremes natural hazards Guangdong Province China |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000393415100017 |
WOS关键词 | RIVER-BASIN ; TRENDS ; AREA |
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/36768 |
专题 | 气候变化 |
作者单位 | 1.Sun Yat Sen Univ, Dept Water Resources & Environm, Sch Geog & Planning, 135 Xingangxi Rd, Guangzhou 510275, Guangdong, Peoples R China; 2.Nanchang Inst Technol, Coll Water Conservancy & Ecol Engn, Nanchang, Jiangxi, Peoples R China; 3.Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan, Peoples R China |
推荐引用方式 GB/T 7714 | He, Yanhu,Lin, Kairong,Tang, Guoping,et al. Quantifying the changing properties of climate extremes in Guangdong Province using individual and integrated climate indices[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2017,37(2). |
APA | He, Yanhu,Lin, Kairong,Tang, Guoping,Chen, Xiaohong,Guo, Shenglian,&Gui, Faliang.(2017).Quantifying the changing properties of climate extremes in Guangdong Province using individual and integrated climate indices.INTERNATIONAL JOURNAL OF CLIMATOLOGY,37(2). |
MLA | He, Yanhu,et al."Quantifying the changing properties of climate extremes in Guangdong Province using individual and integrated climate indices".INTERNATIONAL JOURNAL OF CLIMATOLOGY 37.2(2017). |
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