Articles | Volume 24, issue 10
https://doi.org/10.5194/nhess-24-3479-2024
https://doi.org/10.5194/nhess-24-3479-2024
Research article
 | 
09 Oct 2024
Research article |  | 09 Oct 2024

GTDI: a game-theory-based integrated drought index implying hazard-causing and hazard-bearing impact change

Xiaowei Zhao, Tianzeng Yang, Hongbo Zhang, Tian Lan, Chaowei Xue, Tongfang Li, Zhaoxia Ye, Zhifang Yang, and Yurou Zhang

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Agbo, E. P., Nkajoe, U., and Edet, C. O.: Comparison of Mann–Kendall and Şen's innovative trend method for climatic parameters over Nigeria's climatic zones, Clim. Dynam., 60, 3385–3401, https://doi.org/10.1007/s00382-022-06521-9, 2023. 
Bai, Y., Liu, M., Guo, Q., Wu, G., Wang, W., and Li, S.: Diverse responses of gross primary production and leaf area index to drought on the Mongolian Plateau, Sci. Total Environ., 902, 166507, https://doi.org/10.1016/j.scitotenv.2023.166507, 2023. 
Batabyal, A. A. and Beladi, H.: A game-theoretic model of water theft during a drought, Agr. Water Manage., 255, 107044, https://doi.org/10.1016/j.agwat.2021.107044, 2021. 
Berg, A. and Sheffield, J.: Climate change and drought: the soil moisture perspective, Curr. Clim. Chang. Rep., 4, 180–191, https://doi.org/10.1007/s40641-018-0095-0, 2018. 
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To effectively track and identify droughts, we developed a novel integrated drought index that combines the effects of precipitation, temperature, and soil moisture on drought. After comparison and verification, the integrated drought index shows superior performance compared to a single meteorological drought index or agricultural drought index in terms of drought identification. 
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