Robust Response of Streamflow Drought to Different Timescales of Meteorological Drought in Xiangjiang River Basin of China
Meteorological drought can evolve into all aspects of hydrologic system such as soil layer, groundwater, and river discharge, leading to agricultural drought, groundwater drought, and streamflow drought, respectively. How does it propagate? Is there any strong relationship between meteorological dro...
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Online Access: | http://dx.doi.org/10.1155/2016/1634787 |
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doaj-647c9aae28a74d9eb4edd7f26e3c78af2020-11-24T21:23:44ZengHindawi LimitedAdvances in Meteorology1687-93091687-93172016-01-01201610.1155/2016/16347871634787Robust Response of Streamflow Drought to Different Timescales of Meteorological Drought in Xiangjiang River Basin of ChinaLin Zhao0Jianjun Wu1Jian Fang2School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, ChinaAcademy of Disaster Reduction and Emergency Management, Beijing Normal University, Beijing 100875, ChinaSchool of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, ChinaMeteorological drought can evolve into all aspects of hydrologic system such as soil layer, groundwater, and river discharge, leading to agricultural drought, groundwater drought, and streamflow drought, respectively. How does it propagate? Is there any strong relationship between meteorological drought and others? These issues need further understanding regarding different climate regions. In this paper, monthly SRI and SPEI at different timescales during 1976 and 2005 were utilized to understand how streamflow drought responded to meteorological drought in Xiangjiang river basin, a semihumid basin of Central China. Impressive findings included that strong correlations between SRI and SPEI were found. SPEI of 2-month timescale behaved best when correlating with SRI (R=0.79). Longer timescales of SPEI seemed not to be useful for streamflow drought identification. At seasonal scale, higher correlation coefficients were obtained during dry season, whereas lower coefficients were found in wet season. The maximum R reached up to 0.89 in November at 2-month timescale. Besides, robust response relation between streamflow drought and meteorological drought was also found. The average response rate (Rr) was considerably high (75.4%), with the maximum obtained at 2-month timescale (Rr=82.9%). Meanwhile, important seasonal difference of response rate has also been pointed out.http://dx.doi.org/10.1155/2016/1634787 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Lin Zhao Jianjun Wu Jian Fang |
spellingShingle |
Lin Zhao Jianjun Wu Jian Fang Robust Response of Streamflow Drought to Different Timescales of Meteorological Drought in Xiangjiang River Basin of China Advances in Meteorology |
author_facet |
Lin Zhao Jianjun Wu Jian Fang |
author_sort |
Lin Zhao |
title |
Robust Response of Streamflow Drought to Different Timescales of Meteorological Drought in Xiangjiang River Basin of China |
title_short |
Robust Response of Streamflow Drought to Different Timescales of Meteorological Drought in Xiangjiang River Basin of China |
title_full |
Robust Response of Streamflow Drought to Different Timescales of Meteorological Drought in Xiangjiang River Basin of China |
title_fullStr |
Robust Response of Streamflow Drought to Different Timescales of Meteorological Drought in Xiangjiang River Basin of China |
title_full_unstemmed |
Robust Response of Streamflow Drought to Different Timescales of Meteorological Drought in Xiangjiang River Basin of China |
title_sort |
robust response of streamflow drought to different timescales of meteorological drought in xiangjiang river basin of china |
publisher |
Hindawi Limited |
series |
Advances in Meteorology |
issn |
1687-9309 1687-9317 |
publishDate |
2016-01-01 |
description |
Meteorological drought can evolve into all aspects of hydrologic system such as soil layer, groundwater, and river discharge, leading to agricultural drought, groundwater drought, and streamflow drought, respectively. How does it propagate? Is there any strong relationship between meteorological drought and others? These issues need further understanding regarding different climate regions. In this paper, monthly SRI and SPEI at different timescales during 1976 and 2005 were utilized to understand how streamflow drought responded to meteorological drought in Xiangjiang river basin, a semihumid basin of Central China. Impressive findings included that strong correlations between SRI and SPEI were found. SPEI of 2-month timescale behaved best when correlating with SRI (R=0.79). Longer timescales of SPEI seemed not to be useful for streamflow drought identification. At seasonal scale, higher correlation coefficients were obtained during dry season, whereas lower coefficients were found in wet season. The maximum R reached up to 0.89 in November at 2-month timescale. Besides, robust response relation between streamflow drought and meteorological drought was also found. The average response rate (Rr) was considerably high (75.4%), with the maximum obtained at 2-month timescale (Rr=82.9%). Meanwhile, important seasonal difference of response rate has also been pointed out. |
url |
http://dx.doi.org/10.1155/2016/1634787 |
work_keys_str_mv |
AT linzhao robustresponseofstreamflowdroughttodifferenttimescalesofmeteorologicaldroughtinxiangjiangriverbasinofchina AT jianjunwu robustresponseofstreamflowdroughttodifferenttimescalesofmeteorologicaldroughtinxiangjiangriverbasinofchina AT jianfang robustresponseofstreamflowdroughttodifferenttimescalesofmeteorologicaldroughtinxiangjiangriverbasinofchina |
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1725991298023817216 |