Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | e2024EA003852 |
| Seitenumfang | 20 |
| Fachzeitschrift | Earth and Space Science |
| Jahrgang | 11 |
| Ausgabenummer | 12 |
| Publikationsstatus | Veröffentlicht - 13 Dez. 2024 |
Abstract
This study utilizes Interferometric Synthetic Aperture Radar (InSAR) to examine subsidence along the coastal strip of the Miami barrier islands from 2016 to 2023. Using Sentinel-1 data, we document vertical displacements ranging from 2 to 8 cm, affecting a total of 35 coastal buildings and their vicinity. About half of the subsiding structures are younger than 2014 and at the majority of them subsidence decays with time. This correlation suggests that the subsidence is related to construction activities. In northern and central Sunny Isles Beach, where 23% of coastal structures were built during the last decade, nearly 70% are experiencing subsidence. The majority of the older subsiding structures show sudden onset or sudden acceleration of subsidence, suggesting that this is due to construction activities in their vicinity; we have identified subsidence at distance of 200 m, possibly up to 320 m, from construction sites. We attribute the observed subsidence to load-induced, prolonged creep deformation of the sandy layers within the limestone, which is accelerated, if not instigated, by construction activities. Distant subsidence from a construction site could indicate extended sandy deposits. Anthropogenic and natural groundwater movements could also be driving the creep deformation. This study demonstrates that high-rise construction on karstic barrier islands can induce creep deformation in sandy layer within the limestone succession persisting for a decade or longer. It showcases the potential of InSAR technology for monitoring both building settlement and structural stability.
ASJC Scopus Sachgebiete
- Umweltwissenschaften (insg.)
- Umweltwissenschaften (sonstige)
- Erdkunde und Planetologie (insg.)
- Allgemeine Erdkunde und Planetologie
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in: Earth and Space Science, Jahrgang 11, Nr. 12, e2024EA003852, 13.12.2024.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - InSAR Observations of Construction-Induced Coastal Subsidence on Miami's Barrier Islands, Florida
AU - Aziz Zanjani, Farzaneh
AU - Amelung, Falk
AU - Piter, Andreas
AU - Sobhan, Khaled
AU - Tavakkoliestahbanati, Amin
AU - Eberli, Gregor P.
AU - Haghighi, Mahmud Haghshenas
AU - Motagh, Mahdi
AU - Milillo, Pietro
AU - Mirzaee, Sara
AU - Nanni, Antonio
AU - Andiroglu, Esber
N1 - Publisher Copyright: © 2024. The Author(s).
PY - 2024/12/13
Y1 - 2024/12/13
N2 - This study utilizes Interferometric Synthetic Aperture Radar (InSAR) to examine subsidence along the coastal strip of the Miami barrier islands from 2016 to 2023. Using Sentinel-1 data, we document vertical displacements ranging from 2 to 8 cm, affecting a total of 35 coastal buildings and their vicinity. About half of the subsiding structures are younger than 2014 and at the majority of them subsidence decays with time. This correlation suggests that the subsidence is related to construction activities. In northern and central Sunny Isles Beach, where 23% of coastal structures were built during the last decade, nearly 70% are experiencing subsidence. The majority of the older subsiding structures show sudden onset or sudden acceleration of subsidence, suggesting that this is due to construction activities in their vicinity; we have identified subsidence at distance of 200 m, possibly up to 320 m, from construction sites. We attribute the observed subsidence to load-induced, prolonged creep deformation of the sandy layers within the limestone, which is accelerated, if not instigated, by construction activities. Distant subsidence from a construction site could indicate extended sandy deposits. Anthropogenic and natural groundwater movements could also be driving the creep deformation. This study demonstrates that high-rise construction on karstic barrier islands can induce creep deformation in sandy layer within the limestone succession persisting for a decade or longer. It showcases the potential of InSAR technology for monitoring both building settlement and structural stability.
AB - This study utilizes Interferometric Synthetic Aperture Radar (InSAR) to examine subsidence along the coastal strip of the Miami barrier islands from 2016 to 2023. Using Sentinel-1 data, we document vertical displacements ranging from 2 to 8 cm, affecting a total of 35 coastal buildings and their vicinity. About half of the subsiding structures are younger than 2014 and at the majority of them subsidence decays with time. This correlation suggests that the subsidence is related to construction activities. In northern and central Sunny Isles Beach, where 23% of coastal structures were built during the last decade, nearly 70% are experiencing subsidence. The majority of the older subsiding structures show sudden onset or sudden acceleration of subsidence, suggesting that this is due to construction activities in their vicinity; we have identified subsidence at distance of 200 m, possibly up to 320 m, from construction sites. We attribute the observed subsidence to load-induced, prolonged creep deformation of the sandy layers within the limestone, which is accelerated, if not instigated, by construction activities. Distant subsidence from a construction site could indicate extended sandy deposits. Anthropogenic and natural groundwater movements could also be driving the creep deformation. This study demonstrates that high-rise construction on karstic barrier islands can induce creep deformation in sandy layer within the limestone succession persisting for a decade or longer. It showcases the potential of InSAR technology for monitoring both building settlement and structural stability.
KW - Champlain collapse
KW - constructions activities
KW - Florida
KW - InSAR
KW - Miami
KW - settlement of buildings
KW - subsidence
UR - http://www.scopus.com/inward/record.url?scp=85212093455&partnerID=8YFLogxK
U2 - 10.1029/2024EA003852
DO - 10.1029/2024EA003852
M3 - Article
AN - SCOPUS:85212093455
VL - 11
JO - Earth and Space Science
JF - Earth and Space Science
IS - 12
M1 - e2024EA003852
ER -