Mon Aug 24, F. Flechtner
• Sorted by Date • Sorted by Last Name of First Author •
Ansari, Kutubuddin and Kayıkçı, Emine Tanır, 2026. Geodetic evidence of water mass loss from global navigation satellite system measured land uplift in Türkiye. Journal of Hydrology, 677:135787, doi:10.1016/j.jhydrol.2026.135787.
• from the NASA Astrophysics Data System • by the DOI System •
@ARTICLE{2026JHyd..67735787A,
author = {{Ansari}, Kutubuddin and {Kay{\i}k{\c{c}}{\i}}, Emine Tan{\i}r},
title = "{Geodetic evidence of water mass loss from global navigation satellite system measured land uplift in T{\"u}rkiye}",
journal = {Journal of Hydrology},
keywords = {Terrestrial water storage, GRACE, GLDAS, GLWS, Singular Spectrum Analysis, Vertical land motion},
year = 2026,
month = sep,
volume = {677},
eid = {135787},
pages = {135787},
abstract = "{This study quantifies terrestrial water storage (TWS) variations in
T{\"u}rkiye (2009--2024) using vertical land motion derived from
a dense Global Navigation Satellite System (GNSS) network.
Singular Spectrum Analysis (SSA) was applied to separate long-
term deformation from seasonal oscillations in GNSS height time
series, and elastic loading inversion was performed to convert
vertical displacement into monthly equivalent water height (EWH)
estimates. The resulting monthly GNSS-based TWS estimates were
validated with Global Land Water Storage (GLWS), Global Land
Data Assimilation (GLDAS)-Noah and Gravity Recovery and Climate
Experiment (GRACE) products. Results reveal pronounced TWS
depletion-induced uplift across Southeastern T{\"u}rkiye and
Central Anatolia, reflecting groundwater stress in agricultural
basins, while coastal and northern regions show positive water
anomalies controlled by precipitation and snowmelt recharge.
Seasonal amplitudes peak over the Black Sea and western regions,
with phase shifts showing earlier TWS maxima in eastern snow-fed
basins. Although GNSS-derived amplitudes are lower due to the
sparse network and inversion smoothing, strong seasonal
coherence with GRACE, GLDAS, and GLWS confirms the robustness of
the approach. Overall, this work provides the first GNSS-based
hydro-geodetic assessment of TWS over T{\"u}rkiye and
demonstrates GNSS as a complementary tool for drought monitoring
and climate-driven water-storage evaluation.}",
doi = {10.1016/j.jhydrol.2026.135787},
adsurl = {https://ui.adsabs.harvard.edu/abs/2026JHyd..67735787A},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
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