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Revisiting the composite drought index for improving drought monitoring

文献类型：期刊论文

作者Faiz, Muhammad Abrar3; Zhang, Liangliang3; Liu, Dong2,3,4,6; Ma, Ning1; Li, Mo3; Zhou, Zhaoqiang3; Baig, Faisal5; Li, Tianxiao3; Cui, Song3
刊名JOURNAL OF HYDROLOGY
出版日期2025-05-01
卷号652页码:132707
关键词Soil moisture Evapotranspiration Crop water requirement Drought indices
ISSN号0022-1694
DOI10.1016/j.jhydrol.2025.132707
产权排序5
文献子类Article
英文摘要Well-known natural disasters (i.e., drought) are notably difficult to control and have far-reaching effects. The identification and evaluation of drought are essential for designing water scarcity management plans. Studies have shown that a single drought index has a limited ability for drought monitoring. Therefore, the composite drought index (CDI) was revised by integrating a moisture index that represents the degree of dryness/wetness, reference, and actual and potential evapotranspiration, including advection and radiation component-based water balance and rainfall anomalies. The revised indices were subsequently compared with the original CDI and composite index (CI) developed by the National Climate Center, China, and well-known traditional drought indices (e.g., the standardized precipitation index (SPI) and standardized potential evapotranspiration index (SPEI)). The results revealed that the revised CDIs, especially those with potential and actual evapotranspirationbased moisture and water balance, were well correlated with soil moisture and crop water requirements. The correlation coefficient was statistically significant and greater than 0.5 in most of the grid cells. The indices demonstrated a good ability to determine drought events and characteristics (duration and severity). For example, a one-month drought duration was captured by the CDI (based on actual and potential evapotranspiration); in contrast, the CI presented no drought duration in a similar region. Additionally, the CDIs robustly captured dryness, whereas the CI, SPEI, and SPI reflected a greater amount of wetness. As drought severity has a major impact on crops, these findings emphasize the potential of revised CDIs in drought monitoring and management.
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WOS关键词CHINA ; PREDICTION ; CMIP6
WOS研究方向Engineering ; Geology ; Water Resources
语种英语
WOS记录号WOS:001401470100001
出版者ELSEVIER
源URL[http://ir.igsnrr.ac.cn/handle/311030/211299]  
专题陆地水循环及地表过程院重点实验室_外文论文
通讯作者Ma, Ning
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China;
2.Northeast Agr Univ, Key Lab Effect Utilizat Agr Water Resources, Minist Agr & Rural Affairs, Harbin 150030, Heilongjiang, Peoples R China;
3.Northeast Agr Univ, Sch Water Conservancy & Civil Engn, Harbin 150030, Heilongjiang, Peoples R China;
4.Northeast Agr Univ, Key Lab Water Saving Agr Ordinary Univ Heilongjian, Harbin 150030, Heilongjiang, Peoples R China;
5.United Arab Emirates Univ, Dept Civil & Environm Engn, Al Ain, U Arab Emirates
6.Northeast Agr Univ, Heilongjiang Prov Key Lab Water Resources & Water, Harbin 150030, Heilongjiang, Peoples R China;
推荐引用方式
GB/T 7714		 Faiz, Muhammad Abrar,Zhang, Liangliang,Liu, Dong,et al. Revisiting the composite drought index for improving drought monitoring[J]. JOURNAL OF HYDROLOGY,2025,652:132707.
APA Faiz, Muhammad Abrar.,Zhang, Liangliang.,Liu, Dong.,Ma, Ning.,Li, Mo.,...&Cui, Song.(2025).Revisiting the composite drought index for improving drought monitoring.JOURNAL OF HYDROLOGY,652,132707.
MLA Faiz, Muhammad Abrar,et al."Revisiting the composite drought index for improving drought monitoring".JOURNAL OF HYDROLOGY 652(2025):132707.

入库方式： OAI收割

来源：地理科学与资源研究所

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