Thu Oct 08, F. Flechtner
• Sorted by Date • Sorted by Last Name of First Author •
Ozemir, Ilgın, Akyuz, Dilek Eren, and Balık Sanli, Fusun, 2026. GRACE–Based Long–Term Terrestrial Water Storage Decline in the Susurluk Basin, Türkiye. ISPRS – International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 49B4:613–618, doi:10.5194/isprs-archives-XLIX-B4-2026-613-2026.
• from the NASA Astrophysics Data System • by the DOI System •
@ARTICLE{2026ISPAr49B4..613O,
author = {{Ozemir}, Ilg{\i}n and {Akyuz}, Dilek Eren and {Bal{\i}k Sanli}, Fusun},
title = "{GRACE-Based Long-Term Terrestrial Water Storage Decline in the Susurluk Basin, T{\"u}rkiye}",
journal = {ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences},
year = 2026,
month = aug,
volume = {49B4},
pages = {613-618},
abstract = "{Climate change is reshaping the global water cycle, causing substantial
alterations in precipitation, evaporation, and runoff patterns.
These shifts are driving rapid changes in terrestrial water
storage (TWS), which includes groundwater, soil moisture,
surface water, snow, and ice. Declining TWS threatens freshwater
security, increases the vulnerability of ecosystems and
communities, and directly impacts sustainable water
management{\textemdash}key concerns addressed under SDG 6. In
parallel, intensifying climate-driven water losses align with
the global challenges highlighted in SDG 13, particularly
regarding adaptation and resilience. This study examines long-
term TWS variations in the Susurluk Basin of T{\"u}rkiye's
Marmara Region using NASA's GRACE and GRACE-FO satellite
missions. By measuring gravity anomalies caused by mass changes,
GRACE enables the detection of large-scale water storage shifts.
Monthly data from 41 GRACE grid points (2002─2022) were
processed using the Mann-Kendall trend test at a 5\%
significance level. Consistent acceptance of the H1 hypothesis
and universally negative Z values confirm a statistically
significant and persistent decline in TWS across the basin.
Results show that water storage loss accelerated dramatically
between 2012 and 2022 compared to 2002─2011. The basin exhibits
an overall decreasing coefficient of ─0.0561, while sub-basin
analyses indicate 20-year average losses ranging from ─1.3 cm to
─0.1 cm. These findings demonstrate a clear, worsening depletion
of water resources, emphasizing the urgent need for climate-
adaptive water management. The documented TWS decline
underscores the relevance of this work to SDG 6 by highlighting
risks to water availability and to SDG 13 through evidence of
climate-induced hydrological change.}",
doi = {10.5194/isprs-archives-XLIX-B4-2026-613-2026},
adsurl = {https://ui.adsabs.harvard.edu/abs/2026ISPAr49B4..613O},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
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