Thu Apr 10, F. Flechtner
• Sorted by Date • Sorted by Last Name of First Author •
Chen, Yu, Ahmed, Mohamed, Tangdamrongsub, Natthachet, and Murgulet, Dorina, 2021. Reservoir-Induced Land Deformation: Case Study from the Grand Ethiopian Renaissance Dam. Remote Sensing, 13(5):874, doi:10.3390/rs13050874.
• from the NASA Astrophysics Data System • by the DOI System •
@ARTICLE{2021RemS...13..874C,
author = {{Chen}, Yu and {Ahmed}, Mohamed and {Tangdamrongsub}, Natthachet and {Murgulet}, Dorina},
title = "{Reservoir-Induced Land Deformation: Case Study from the Grand Ethiopian Renaissance Dam}",
journal = {Remote Sensing},
keywords = {GERD reservoir, GRACE-FO, vertical displacement, north displacement, east displacement, Nile Basin},
year = 2021,
month = feb,
volume = {13},
number = {5},
eid = {874},
pages = {874},
abstract = "{The Nile River stretches from south to north throughout the Nile River
Basin (NRB) in Northeast Africa. Ethiopia, where the Blue Nile
originates, has begun the construction of the Grand Ethiopian
Renaissance Dam (GERD), which will be used to generate
electricity. However, the impact of the GERD on land deformation
caused by significant water relocation has not been rigorously
considered in the scientific research. In this study, we develop
a novel approach for predicting large-scale land deformation
induced by the construction of the GERD reservoir. We also
investigate the limitations of using the Gravity Recovery and
Climate Experiment Follow On (GRACE-FO) mission to detect GERD-
induced land deformation. We simulated three land deformation
scenarios related to filling the expected reservoir volume, 70
km$^{3}$, using 5-, 10-, and 15-year filling scenarios. The
results indicated: (i) trends in downward vertical displacement
estimated at -17.79 {\ensuremath{\pm}} 0.02, -8.90
{\ensuremath{\pm}} 0.09, and -5.94 {\ensuremath{\pm}} 0.05
mm/year, for the 5-, 10-, and 15-year filling scenarios,
respectively; (ii) the western (eastern) parts of the GERD
reservoir are estimated to move toward the reservoir's center by
+0.98 {\ensuremath{\pm}} 0.01 (-0.98 {\ensuremath{\pm}} 0.01),
+0.48 {\ensuremath{\pm}} 0.00 (-0.48 {\ensuremath{\pm}} 0.00),
and +0.33 {\ensuremath{\pm}} 0.00 (-0.33 {\ensuremath{\pm}}
0.00) mm/year, under the 5-, 10- and 15-year filling strategies,
respectively; (iii) the northern part of the GERD reservoir is
moving southward by +1.28 {\ensuremath{\pm}} 0.02, +0.64
{\ensuremath{\pm}} 0.01, and +0.43 {\ensuremath{\pm}} 0.00
mm/year, while the southern part is moving northward by -3.75
{\ensuremath{\pm}} 0.04, -1.87 {\ensuremath{\pm}} 0.02, and
-1.25 {\ensuremath{\pm}} 0.01 mm/year, during the three examined
scenarios, respectively; and (iv) the GRACE-FO mission can only
detect 15\% of the large-scale land deformation produced by the
GERD reservoir. Methods and results demonstrated in this study
provide insights into possible impacts of reservoir impoundment
on land surface deformation, which can be adopted into the GERD
project or similar future dam construction plans.}",
doi = {10.3390/rs13050874},
adsurl = {https://ui.adsabs.harvard.edu/abs/2021RemS...13..874C},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
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