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  Using GNSS and precipitation data to reveal the propagation characteristics from meteorological to hydrological drought in Yunnan, China

Zhu, H., Chen, K., Hu, S., Liu, J., Shi, H., Wei, G., Chai, H., Wang, T. (2023): Using GNSS and precipitation data to reveal the propagation characteristics from meteorological to hydrological drought in Yunnan, China, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-2380

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Datensatz-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018391 Versions-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018391_1
Genre: Konferenzbeitrag

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 Urheber:
Zhu, Hai1, Autor
Chen, Kejie1, Autor
Hu, Shunqiang1, Autor
Liu, Junguo1, Autor
Shi, Haiyun1, Autor
Wei, Guoguang1, Autor
Chai, Haishan1, Autor
Wang, Tan1, Autor
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

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Schlagwörter: -
 Zusammenfassung: Analyzing the spatiotemporal characteristics and evolution of meteorological and hydrological droughts can reproduce the process of drought propagation. This study focuses on drought propagation between meteorological and hydrological drought in Yunnan province, Southwest China, using Global Navigation Satellite Systems (GNSS) observations and precipitation data. We identify 7 meteorological and 7 hydrological droughts between January 2011 and May 2021 and find that the meteorological droughts are concentrated in northern Yunnan and last 1-11 months, while hydrological droughts are more severe and larger, lasting 2-16 months. The drought propagation time varies between 2-7 months and is short in the southwest but long in the northeast. We also find that water vapor, precipitation, and water storage have an uneven spatiotemporal distribution with the red river fault (RRF) as the boundary and that the RRF influences the spatial variation of water resources and drought propagation. The results of this study provide valuable insights into the spatiotemporal characteristics and evolution of meteorological and hydrological droughts, which can be used to improve water resources management and mitigate the impact of droughts.

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Sprache(n): eng - Englisch
 Datum: 2023
 Publikationsstatus: Final veröffentlicht
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.57757/IUGG23-2380
 Art des Abschluß: -

Veranstaltung

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Titel: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Veranstaltungsort: Berlin
Start-/Enddatum: 2023-07-11 - 2023-07-20

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Titel: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Genre der Quelle: Konferenzband
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Potsdam : GFZ German Research Centre for Geosciences
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