Analysis of drought characteristics in Henan Province based on GRACE satellite data

Lele Yin; Changshou Wei

doi:10.1117/12.3020990

19 January 2024 Analysis of drought characteristics in Henan Province based on GRACE satellite data

Lele Yin, Changshou Wei

Proceedings Volume 12980, Fifth International Conference on Geoscience and Remote Sensing Mapping (ICGRSM 2023); 1298011 (2024) https://doi.org/10.1117/12.3020990
Event: Fifth International Conference on Geoscience and Remote Sensing Mapping (ICGRSM 2023), 2023, Lianyungang, China

Abstract

To explore the spatiotemporal variation characteristics of drought in Henan Province, this article uses GRACE satellite data from 2004 to 2015 and constructs a water storage drought index (GRACE-DSI) based on GRACE time-varying gravity field data to monitor drought events in Henan Province during the research period and explore the spatiotemporal evolution characteristics of drought. The results indicate that there were 4 drought events in Henan Province during the research period, with the most severe occurring from August 2012 to January 2015; The severe drought areas in Henan Province are mainly distributed in the central and western regions and some parts of the northern region, with the worsening of drought in the northern region being the most severe; The changes in groundwater reserves have a significant impact on the GRACE-DSI changes in Henan Province, followed by precipitation factors. GRACE-DSI has a good correlation with SCPDSI, which can better reflect the drought situation in Henan Province.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Lele Yin and Changshou Wei "Analysis of drought characteristics in Henan Province based on GRACE satellite data", Proc. SPIE 12980, Fifth International Conference on Geoscience and Remote Sensing Mapping (ICGRSM 2023), 1298011 (19 January 2024); https://doi.org/10.1117/12.3020990

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