Present Sea Level Rise, Land Subsidence, and Coastal Erosion at Freeport, Texas, USA
Coastal submergence and erosion associated with land subsidence and sea level rise exert significant impacts on coastal economic development and ecosystems. This study investigates present sea-level rise, land subsidence, and coastal erosion at Freeport, Texas using long-history datasets from tide g...
Main Author: | |
---|---|
Other Authors: | , , , |
Format: | Thesis |
Language: | English |
Published: |
2021
|
Subjects: | |
Online Access: | https://hdl.handle.net/10657/10199 |
id |
ftunivhouston:oai:uh-ir.tdl.org:10657/10199 |
---|---|
record_format |
openpolar |
spelling |
ftunivhouston:oai:uh-ir.tdl.org:10657/10199 2023-05-15T13:07:37+02:00 Present Sea Level Rise, Land Subsidence, and Coastal Erosion at Freeport, Texas, USA Zhou, Xin Wang, Guoquan Wellner, Julia S. Zheng, Yingcai Lee, Hyongki 2021-05 application/pdf born digital https://hdl.handle.net/10657/10199 en eng Portions of this document appear in: Wang, G., Zhou, X., et al. (2020). "GOM20: a stable geodetic reference frame for subsidence, faulting, and sea-level rise studies along the coast of the Gulf of Mexico." Remote Sensing 12, no. 3: 350; and in: Zhou, X., et al. (2017). “Delineating beach and dune morphology from massive terrestrial laser-scanning data using generic mapping tools.” Journal of Surveying Engineering, 143(4), 04017008. https://hdl.handle.net/10657/10199 The author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. UH Libraries has secured permission to reproduce any and all previously published materials contained in the work. Further transmission, reproduction, or presentation of this work is prohibited except with permission of the author(s). sea-level rise natural subsidence coastal erosion Thesis Text 2021 ftunivhouston 2022-12-03T23:07:47Z Coastal submergence and erosion associated with land subsidence and sea level rise exert significant impacts on coastal economic development and ecosystems. This study investigates present sea-level rise, land subsidence, and coastal erosion at Freeport, Texas using long-history datasets from tide gauges, groundwater wells, GPS, and LiDAR surveys. A stable Gulf of Mexico geodetic reference frame 2020 (GOM20) is established to precisely delineate sea-level rise and coastal subsidence along the Gulf coast. GOM20 is realized with long-history observations at 55 GPS sites located in the stable portion of the Gulf coastal plain. The frame stability is 0.3 mm/year in the horizontal direction and 0.5 mm/year in the vertical direction. Groundwater withdrawal-induced land subsidence was remarkable along the Texas coast region during the 1940s to 1970s. A rapid subsidence with an average rate of 15 mm/year was observed at Freeport from 1954 to the mid-1970s because of excessive groundwater withdrawals. The subsidence ceased due to groundwater regulations since the 1980s. Present coastal subsidence at Freeport is dominated by natural subsidence with a steady rate of 1.5 mm/year, which is consistent with the average subsidence rate along the 600-km Texas coastline. The sea-level rise rate at Freeport is 2.6 mm/year from the1970s to 2010s with respect to GOM20. The ongoing land submergence rate at Freeport is approximately 4.1 mm/year. Beach and dune morphology change at Bryan beach in Freeport have been heavily investigated using airborne topographic mapper (ATM), repeated terrestrial laser scanning (TLS), and unmanned aerial vehicle (UAV) data. Comparing the digital elevation model (DEM) of 2017 June with the DEM acquired immediately after Hurricane Harvey, the beach and foredune lose 27,622 m3 of sediments while the back dune at Bryan beach gained 36,749 m3 of sediments during the hurricane season. The shoreline retreating rate at Bryan beach from 2001 to 2018 is 2.64 m/year on average, with maximum of 4.88 m/year at X = ... Thesis Airborne Topographic Mapper University of Houston Institutional Repository (UHIR) |
institution |
Open Polar |
collection |
University of Houston Institutional Repository (UHIR) |
op_collection_id |
ftunivhouston |
language |
English |
topic |
sea-level rise natural subsidence coastal erosion |
spellingShingle |
sea-level rise natural subsidence coastal erosion Zhou, Xin Present Sea Level Rise, Land Subsidence, and Coastal Erosion at Freeport, Texas, USA |
topic_facet |
sea-level rise natural subsidence coastal erosion |
description |
Coastal submergence and erosion associated with land subsidence and sea level rise exert significant impacts on coastal economic development and ecosystems. This study investigates present sea-level rise, land subsidence, and coastal erosion at Freeport, Texas using long-history datasets from tide gauges, groundwater wells, GPS, and LiDAR surveys. A stable Gulf of Mexico geodetic reference frame 2020 (GOM20) is established to precisely delineate sea-level rise and coastal subsidence along the Gulf coast. GOM20 is realized with long-history observations at 55 GPS sites located in the stable portion of the Gulf coastal plain. The frame stability is 0.3 mm/year in the horizontal direction and 0.5 mm/year in the vertical direction. Groundwater withdrawal-induced land subsidence was remarkable along the Texas coast region during the 1940s to 1970s. A rapid subsidence with an average rate of 15 mm/year was observed at Freeport from 1954 to the mid-1970s because of excessive groundwater withdrawals. The subsidence ceased due to groundwater regulations since the 1980s. Present coastal subsidence at Freeport is dominated by natural subsidence with a steady rate of 1.5 mm/year, which is consistent with the average subsidence rate along the 600-km Texas coastline. The sea-level rise rate at Freeport is 2.6 mm/year from the1970s to 2010s with respect to GOM20. The ongoing land submergence rate at Freeport is approximately 4.1 mm/year. Beach and dune morphology change at Bryan beach in Freeport have been heavily investigated using airborne topographic mapper (ATM), repeated terrestrial laser scanning (TLS), and unmanned aerial vehicle (UAV) data. Comparing the digital elevation model (DEM) of 2017 June with the DEM acquired immediately after Hurricane Harvey, the beach and foredune lose 27,622 m3 of sediments while the back dune at Bryan beach gained 36,749 m3 of sediments during the hurricane season. The shoreline retreating rate at Bryan beach from 2001 to 2018 is 2.64 m/year on average, with maximum of 4.88 m/year at X = ... |
author2 |
Wang, Guoquan Wellner, Julia S. Zheng, Yingcai Lee, Hyongki |
format |
Thesis |
author |
Zhou, Xin |
author_facet |
Zhou, Xin |
author_sort |
Zhou, Xin |
title |
Present Sea Level Rise, Land Subsidence, and Coastal Erosion at Freeport, Texas, USA |
title_short |
Present Sea Level Rise, Land Subsidence, and Coastal Erosion at Freeport, Texas, USA |
title_full |
Present Sea Level Rise, Land Subsidence, and Coastal Erosion at Freeport, Texas, USA |
title_fullStr |
Present Sea Level Rise, Land Subsidence, and Coastal Erosion at Freeport, Texas, USA |
title_full_unstemmed |
Present Sea Level Rise, Land Subsidence, and Coastal Erosion at Freeport, Texas, USA |
title_sort |
present sea level rise, land subsidence, and coastal erosion at freeport, texas, usa |
publishDate |
2021 |
url |
https://hdl.handle.net/10657/10199 |
genre |
Airborne Topographic Mapper |
genre_facet |
Airborne Topographic Mapper |
op_relation |
Portions of this document appear in: Wang, G., Zhou, X., et al. (2020). "GOM20: a stable geodetic reference frame for subsidence, faulting, and sea-level rise studies along the coast of the Gulf of Mexico." Remote Sensing 12, no. 3: 350; and in: Zhou, X., et al. (2017). “Delineating beach and dune morphology from massive terrestrial laser-scanning data using generic mapping tools.” Journal of Surveying Engineering, 143(4), 04017008. https://hdl.handle.net/10657/10199 |
op_rights |
The author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. UH Libraries has secured permission to reproduce any and all previously published materials contained in the work. Further transmission, reproduction, or presentation of this work is prohibited except with permission of the author(s). |
_version_ |
1766061397190377472 |