Mon Oct 13, F. Flechtner
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Ren, Ruqing, Nemoto, Tatsuya, Raghavan, Venkatesh, Song, Xianfeng, and Duan, Zheng, 2025. Analysis of Droughts and Floods Evolution and Teleconnection Factors in the Yangtze River Basin Based on GRACE/GFO. Remote Sensing, 17(14):2344, doi:10.3390/rs17142344.
• from the NASA Astrophysics Data System • by the DOI System •
@ARTICLE{2025RemS...17.2344R,
author = {{Ren}, Ruqing and {Nemoto}, Tatsuya and {Raghavan}, Venkatesh and {Song}, Xianfeng and {Duan}, Zheng},
title = "{Analysis of Droughts and Floods Evolution and Teleconnection Factors in the Yangtze River Basin Based on GRACE/GFO}",
journal = {Remote Sensing},
keywords = {GRACE/GFO, drought and flood, water storage, teleconnection factors, sub-basins},
year = 2025,
month = jul,
volume = {17},
number = {14},
eid = {2344},
pages = {2344},
abstract = "{In recent years, under the influence of climate change and human
activities, droughts and floods have occurred frequently in the
Yangtze River Basin (YRB), seriously threatening socioeconomic
development and ecological security. The topography and climate
of the YRB are complex, so it is crucial to develop appropriate
drought and flood policies based on the drought and flood
characteristics of different sub-basins. This study calculated
the water storage deficit index (WSDI) based on the Gravity
Recovery and Climate Experiment (GRACE) and GRACE-Follow On
(GFO) mascon model, extended WSDI to the bidirectional
monitoring of droughts and floods in the YRB, and verified the
reliability of WSDI in monitoring hydrological events through
historical documented events. Combined with the wavelet method,
it revealed the heterogeneity of climate responses in the three
sub-basins of the upper, middle, and lower reaches. The results
showed the following. (1) Compared and verified with the
Standardized Precipitation Evapotranspiration Index (SPEI),
self-calibrating Palmer Drought Severity Index (scPDSI), and
documented events, WSDI overcame the limitations of traditional
indices and had higher reliability. A total of 21 drought events
and 18 flood events were identified in the three sub-basins,
with the lowest frequency of drought and flood events in the
upper reaches. (2) Most areas of the YRB showed different
degrees of wetting on the monthly and seasonal scales, and the
slowest trend of wetting was in the lower reaches of the YRB.
(3) The degree of influence of teleconnection factors in the
upper, middle, and lower reaches of the YRB had gradually
increased over time, and, in particular, El Ni{\~n}o Southern
Oscillation (ENSO) had a significant impact on the droughts and
floods. This study provided a new basis for the early warning of
droughts and floods in different sub-basins of the YRB.}",
doi = {10.3390/rs17142344},
adsurl = {https://ui.adsabs.harvard.edu/abs/2025RemS...17.2344R},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
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