Genesis and Evolution of A Beach-Ridge Plain Reflecting Relative Sea-Level Rise: A Case Study From Trab El Makhadha Gulf of Gabes, Southeastern Tunisia

2014 ◽  
Vol 84 (3) ◽  
pp. 183-191 ◽  
Author(s):  
M. Gzam ◽  
N. Elmejdoub ◽  
S. Boussetta ◽  
Y. Jedoui
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Beach Ridge ◽  
Gulf Of Gabes ◽  
Relative Sea Level ◽  
Gulf Of Gabès ◽  
Relative Sea Level Rise

scholarly journals Sedimentation and Survival of the Mekong Delta: A Case Study of Decreased Sediment Supply and Accelerating Rates of Relative Sea Level Rise

Oceanography ◽  
2017 ◽  
Vol 30 (3) ◽  
pp. 98-109 ◽  
Author(s):  
Mead Allison ◽  
◽  
Charles Nittrouer ◽  
Andrea Ogston ◽  
Julia Mullarney ◽  
...  
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Mekong Delta ◽  
Sediment Supply ◽  
Relative Sea Level ◽  
Relative Sea Level Rise

Coastal progradation in response to the recent sea level rise: a case study of El Grine coast, Gulf of Gabes (Southeastern Tunisia)

2012 ◽  
Vol 6 (12) ◽  
pp. 5007-5016 ◽  
Author(s):  
Maher Gzam ◽  
Mohamed Moncef Serbaji ◽  
Mohamed Ouaja ◽  
Younes Jedoui
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Gulf Of Gabes ◽  
Gulf Of Gabès

scholarly journals Late Holocene differential subsidence and relative sea level rise in the Tabasco Delta, Mexico

2020 ◽  
Vol 382 ◽  
pp. 149-153
Author(s):  
Kees Nooren ◽  
Kim M. Cohen ◽  
Jaap H. Nienhuis ◽  
Wim Z. Hoek
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Late Holocene ◽  
Gulf Coast ◽  
Time Windows ◽  
River Mouth ◽  
Beach Ridge ◽  
Relative Sea Level ◽  
Southern Mexico ◽  
Relative Sea Level Rise

Abstract. Coastal subsidence owing to compaction of Holocene strata and deeper-rooted components affects large delta plains such as the Tabasco delta in southern Mexico (Gulf coast). For this system, GNSS3-PPP ground-truthed LiDAR imagery of high-resolution dated beach-ridge series reveals considerable differential subsidence on either side of the present Usumacinta-Grijalva River mouth. Collected field-data allows for quantification of differential subsidence over several time windows and reconstruction of relative sea-level rise back to 5000 years ago. Observed differential subsidence of 1–1.5 m is regarded to be syn-sedimentary delta-subsurface compaction of buried strata in response to the accumulating overburden of the prograding beach-ridge complex.

Submergence, nutrient enrichment, and tropical storm impacts on Spartina alterniflora in the microtidal northern Gulf of Mexico

2020 ◽  
Vol 644 ◽  
pp. 33-45
Author(s):  
JM Hill ◽  
PS Petraitis ◽  
KL Heck
Keyword(s):  
Gulf Of Mexico ◽  
Sea Level Rise ◽  
Sea Level ◽  
Spartina Alterniflora ◽  
Anthropogenic Impacts ◽  
Interactive Effects ◽  
Relative Sea Level ◽  
Hurricane Disturbance ◽  
Submergence Stress ◽  
Relative Sea Level Rise

Salt marshes face chronic anthropogenic impacts such as relative sea level rise and eutrophication, as well as acute disturbances from tropical storms that can affect the productivity of these important communities. However, it is not well understood how marshes already subjected to eutrophication and sea level rise will respond to added effects of episodic storms such as hurricanes. We examined the interactive effects of nutrient addition, sea level rise, and a hurricane on the growth, biomass accumulation, and resilience of the saltmarsh cordgrass Spartina alterniflora in the Gulf of Mexico. In a microtidal marsh, we manipulated nutrient levels and submergence using marsh organs in which cordgrasses were planted at differing intertidal elevations and measured the impacts of Hurricane Isaac, which occurred during the experiment. Prior to the hurricane, grasses at intermediate and high elevations increased in abundance. After the hurricane, all treatments lost approximately 50% of their shoots, demonstrating that added nutrients and elevation did not provide resistance to hurricane disturbance. At the end of the experiment, only the highest elevations had been resilient to the hurricane, with increased above- and belowground growth. Added nutrients provided a modest increase in above- and belowground growth, but only at the highest elevations, suggesting that only elevation will enhance resilience to hurricane disturbance. These results empirically demonstrate that S. alterniflora in microtidal locations already subjected to submergence stress is less able to recover from storm disturbance and suggests we may be underestimating the loss of northern Gulf Coast marshes due to relative sea level rise.

Relative sea-level rise and climate change over the last 1500 years

Terra Nova ◽  
1992 ◽  
Vol 4 (3) ◽  
pp. 293-304 ◽  
Author(s):  
J.C. Varekamp ◽  
E. Thomas ◽  
O. Plassche
Keyword(s):  
Climate Change ◽  
Sea Level Rise ◽  
Sea Level ◽  
Relative Sea Level ◽  
Relative Sea Level Rise

Feasibility of sedimentation strategies for the Mekong delta to counterbalance relative sea-level rise

2021 ◽  
Author(s):  
Frances E. Dunn ◽  
Philip S. J. Minderhoud
Keyword(s):  
Land Use ◽  
Sea Level Rise ◽  
Sea Level ◽  
Mekong Delta ◽  
Sediment Deposition ◽  
Sediment Supply ◽  
Sediment Flux ◽  
Relative Sea Level ◽  
Fluvial Sediment ◽  
Relative Sea Level Rise

<p>As one of the largest deltas in the world, the Mekong delta is home to over 17 million people and supports internationally important agriculture. Recently deposited sediment compacts and causes subsidence in deltas, so they require regular sediment input to maintain elevation relative to sea level. These processes are complicated by human activities, which prevent sediment deposition indirectly through reducing fluvial sediment supply and directly through the construction of flood defence infrastructure on deltas, impeding floods which deliver sediment to the land. Additionally, anthropogenic activities increase the rate of subsidence through the extraction of groundwater and other land-use practices.</p><p>This research shows the potential for fluvial sediment delivery to compensate for sea-level rise and subsidence in the Mekong delta over the 21st century. We use detailed elevation data and subsidence scenarios in combination with regional sea-level rise and fluvial sediment flux projections to quantify the potential for maintaining elevation relative to sea level in the Mekong delta. We present four examples of localised sedimentation scenarios in specific areas, for which we quantified the potential effectiveness of fluvial sediment deposition for offsetting relative sea-level rise. The presented sediment-based adaptation strategies are complicated by existing land use, therefore a change in water and sediment management is required to effectively use natural resources and employ these adaptation methods. The presented approach could be an exemplar to assess sedimentation strategy feasibility in other delta systems worldwide that are under threat from sea-level rise.</p>

Relative sea level rise, site distributions, and Neolithic settlement in the early to middle Holocene, Jiangsu Province, China

The Holocene ◽  
2017 ◽  
Vol 28 (3) ◽  
pp. 354-362 ◽  
Author(s):  
Lan Li ◽  
Cheng Zhu ◽  
Zhen Qin ◽  
Michael J Storozum ◽  
Tristram R Kidder
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Jiangsu Province ◽  
Relative Sea Level ◽  
Middle Holocene ◽  
Relative Sea Level Rise
Sign in / Sign up

Export Citation Format

Share Document