Mon Oct 13, F. Flechtner
• Sorted by Date • Sorted by Last Name of First Author •
Hu, Jiarui, Cui, Lilu, Meng, Jiacheng, Guo, Haoyang, Lu, Yuheng, and Li, Yu, 2025. Drought dynamic characteristics over Amazon River basin in the past 30 years revealed by multi-source satellite gravity observations. International Journal of Remote Sensing, 46(18):6847–6874, doi:10.1080/01431161.2025.2549130.
• from the NASA Astrophysics Data System • by the DOI System •
@ARTICLE{2025IJRS...46.6847H,
author = {{Hu}, Jiarui and {Cui}, Lilu and {Meng}, Jiacheng and {Guo}, Haoyang and {Lu}, Yuheng and {Li}, Yu},
title = "{Drought dynamic characteristics over Amazon River basin in the past 30 years revealed by multi-source satellite gravity observations}",
journal = {International Journal of Remote Sensing},
keywords = {Satellite laser ranging, Swarm, GRACE/GRACE-FO, Amazon River basin, extreme drought, dynamic characteristics},
year = 2025,
month = sep,
volume = {46},
number = {18},
pages = {6847-6874},
abstract = "{The climate anomalies in the Amazon River Basin (ARB) have significant
implications for global climate change. Studying the
characteristics of droughts in the ARB can enhance our
understanding of the region's response to climate change. In
this study, we successfully constructed a continuous 30-year
dataset of terrestrial water storage changes (TWSC) by
integrating multiple satellite gravity data sources. This
dataset was then used to investigate the dynamic characteristics
of droughts in the ARB between 1993 and 2022. The results show
that the TWSC series derived from multi-source satellite gravity
data is highly suitable and reliable for the study region.
During the study period, nine extreme drought events occurred in
the ARB. The 2015{\textendash}2016 drought stood out as the most
severe (with a severity index of ‑19.08) and longest in duration
(14 months). Spatially, the eastern region exhibited the highest
drought severity, peak intensity, and event duration, while the
northern and southern basin areas recorded the highest drought
frequency. In terms of seasonal patterns, autumn saw the highest
drought severity and frequency, as well as the longest
durations, whereas spring witnessed the peak severity of
droughts. Although trends in drought peak intensity, severity,
and duration showed no significant directional shifts, drought
frequency followed a distinct sinusoidal pattern. Notably,
drought peak intensity and frequency generally trended downward,
while severity and duration trended upward. The northern region
was particularly notable, displaying marked upward trends in
drought severity, duration, and frequency {\textendash} with the
fastest rates of increase at ‑0.72 per year (severity index),
0.44 months per year (duration), and 1.26\% per year
(frequency), respectively.}",
doi = {10.1080/01431161.2025.2549130},
adsurl = {https://ui.adsabs.harvard.edu/abs/2025IJRS...46.6847H},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
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