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GRACE-based groundwater drought in the Indochina Peninsula during 1979–2020: Changing properties and possible teleconnection mechanisms

Song, Xuanhua, Chen, Hao, Chen, Tan, Qin, Zhihao, Chen, Sheng, Yang, Ni, and Deng, Shulin, 2024. GRACE-based groundwater drought in the Indochina Peninsula during 1979–2020: Changing properties and possible teleconnection mechanisms. Science of the Total Environment, 908:168423, doi:10.1016/j.scitotenv.2023.168423.

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@ARTICLE{2024ScTEn.90868423S,
       author = {{Song}, Xuanhua and {Chen}, Hao and {Chen}, Tan and {Qin}, Zhihao and {Chen}, Sheng and {Yang}, Ni and {Deng}, Shulin},
        title = "{GRACE-based groundwater drought in the Indochina Peninsula during 1979{\textendash}2020: Changing properties and possible teleconnection mechanisms}",
      journal = {Science of the Total Environment},
     keywords = {Groundwater drought, Global climate events, GRACE, Indochina peninsula},
         year = 2024,
        month = jan,
       volume = {908},
          eid = {168423},
        pages = {168423},
     abstract = "{Groundwater is very important for human productivity and daily life,
        hydrological cycle regulation, and ecosystem stability. However,
        due to the complex mechanisms of groundwater drought, the
        spatial and temporal variations of groundwater drought and its
        driving mechanisms are still not fully understood, especially in
        Indochina Peninsula. In this work, we used a reconstructed long-
        term terrestrial water storage dataset from the Gravity Recovery
        and Climate Experiment (GRACE) emission and a GRACE-based
        groundwater drought index to investigate the spatial and
        temporal characteristics of groundwater drought during
        1979{\textendash}2020 in the Indochina Peninsula. The possible
        teleconnection mechanisms between groundwater drought and the
        Indian Ocean Dipole (IOD), El Ni{\~n}o-Southern Oscillation
        (ENSO), and El Ni{\~n}o Modoki (ENSO\_M) were also investigated
        using cross wavelet transform method. The results show that
        groundwater drought worsens significantly during
        1979{\textendash}2020, and becomes much more frequent and
        intensified after 2000 in the southern Indochina Peninsula. Both
        univariate and bivariate (logic 'or' and 'and') return periods
        for duration, severity, and peak of groundwater drought are
        short in the southern Indochina Peninsula, and thus the risk of
        groundwater drought is high. The IOD, ENSO, and ENSO\_M can
        reduce the intensity of groundwater drought to a certain extent
        during the warm phases, but only ENSO\_M tends to significantly
        exacerbate the intensity of groundwater drought during the cold
        phases in the southern Indochina Peninsula. The variations in
        groundwater drought are dominated by ENSO\_M, and are also
        coupled influenced by the IOD and ENSO in the southern Indochina
        Peninsula. The results provide valuable information for the
        sustainable ecological environment and socioeconomic
        development, especially development of groundwater drought early
        warning and prediction models in the Indochina Peninsula.}",
          doi = {10.1016/j.scitotenv.2023.168423},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2024ScTEn.90868423S},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

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