Is land subsidence increasing the exposure to sea level rise in Alexandria, Egypt?. Wöppelmann, G., Cozannet, G. L., Michele, M. d., Raucoules, D., Cazenave, A., Garcin, M., Hanson, S., Marcos, M., & Santamaría‐Gómez, A. 40(12):2953–2957. Number: 12![Is land subsidence increasing the exposure to sea level rise in Alexandria, Egypt? [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex AbstractDelta margins are subject to relatively high rates of land subsidence and have the potential to significantly exacerbate future changes in sea levels predicted by global warming models used in impact studies. Through a combined analysis of GPS and persistent scatterer interferometry data, we determine that most of the coastline of Alexandria has been subject to moderate land subsidence over the past decade (0.4 mm/yr on average and up to 2 mm/yr locally). This contrasts to previous studies that suggested subsidence in excess of 3 mm/yr. Based on our findings, we infer that on multi-century to millennia timescales, land subsidence in the area of Alexandria is dominated by tectonic setting and earthquakes or gravitational collapse episodes of a growth fault, whereas on shorter interseismic decadal to century timescales, subsidence rates are likely steady and moderate, in agreement with natural compaction and dewatering of the observed Holocene sediment layer.
@article{woppelmann_is_2013,
title = {Is land subsidence increasing the exposure to sea level rise in Alexandria, Egypt?},
volume = {40},
rights = {©2013. American Geophysical Union. All Rights Reserved.},
issn = {1944-8007},
url = {http://agupubs.onlinelibrary.wiley.com/doi/abs/10.1002/grl.50568},
doi = {10.1002/grl.50568},
abstract = {{AbstractDelta} margins are subject to relatively high rates of land subsidence and have the potential to significantly exacerbate future changes in sea levels predicted by global warming models used in impact studies. Through a combined analysis of {GPS} and persistent scatterer interferometry data, we determine that most of the coastline of Alexandria has been subject to moderate land subsidence over the past decade (0.4 mm/yr on average and up to 2 mm/yr locally). This contrasts to previous studies that suggested subsidence in excess of 3 mm/yr. Based on our findings, we infer that on multi-century to millennia timescales, land subsidence in the area of Alexandria is dominated by tectonic setting and earthquakes or gravitational collapse episodes of a growth fault, whereas on shorter interseismic decadal to century timescales, subsidence rates are likely steady and moderate, in agreement with natural compaction and dewatering of the observed Holocene sediment layer.},
pages = {2953--2957},
number = {12},
journaltitle = {Geophysical Research Letters},
author = {Wöppelmann, Guy and Cozannet, Gonéri Le and Michele, Marcello de and Raucoules, Daniel and Cazenave, Anny and Garcin, Manuel and Hanson, Susan and Marcos, Marta and Santamaría‐Gómez, Alvaro},
urldate = {2019-04-17},
date = {2013},
langid = {english},
note = {Number: 12},
keywords = {Sea level, {GPS}, tide gauge, Coastal subsidence, {InSAR}, Alexandria}
}
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