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.

scholarly journals Rapid inundation of southern Florida coastline despite low relative sea-level rise rates during the late-Holocene

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Miriam C. Jones ◽  
G. Lynn Wingard ◽  
Bethany Stackhouse ◽  
Katherine Keller ◽  
Debra Willard ◽  
...  
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Late Holocene ◽  
Relative Sea Level ◽  
Relative Sea Level Rise ◽  
Southern Florida

Trends in Chesapeake Bay Sedimentation Rates during the Late Holocene

1990 ◽  
Vol 34 (1) ◽  
pp. 33-46 ◽  
Author(s):  
Joseph F. Donoghue
Keyword(s):  
Sea Level Rise ◽  
Chesapeake Bay ◽  
Sea Level ◽  
Late Holocene ◽  
Tide Gauge ◽  
Past Century ◽  
Sedimentation Rates ◽  
Relative Sea Level ◽  
The Past ◽  
Relative Sea Level Rise

AbstractTrends are discernible in the estimates of late Holocene rates of sedimentation and sea-level rise for the Chesapeake Bay. During most of the Holocene Epoch sedimentation rates and relative sea-level rise were equal, within the limits of measurement, at approximately 1 mm yr−1. Sedimentation rates measured over the past century, however, are nearly an order of magnitude higher, while the rate of relative sea-level rise for the Chesapeake Bay now averages 3.3 mm yr−1, as measured on long-term tide gauge records. When the acceleration in these rates occurred is uncertain, but it appears to have been confined to the past millennium, and probably to the past few centuries. The rapid sedimentation rates recorded during historic time may be a temporary disequilibrium that has resulted from a recent acceleration in the rate of relative sea-level rise.

Middle to late Holocene relative sea level rise, climate variability and environmental change along the Colombian Caribbean coast

The Holocene ◽  
2014 ◽  
Vol 24 (8) ◽  
pp. 898-907 ◽  
Author(s):  
Maria I Velez ◽  
Jaime Escobar ◽  
Mark Brenner ◽  
Orlando Rangel ◽  
Alejandra Betancourt ◽  
...  
Keyword(s):  
Climate Variability ◽  
Environmental Change ◽  
Sea Level Rise ◽  
Sea Level ◽  
Late Holocene ◽  
Relative Sea Level ◽  
Caribbean Coast ◽  
Relative Sea Level Rise

Evidence of relative sea level rise along the coasts of central Apulia (Italy) during the late Holocene via maritime archaeological indicators

2017 ◽  
Vol 439 ◽  
pp. 65-78 ◽  
Author(s):  
G. Mastronuzzi ◽  
F. Antonioli ◽  
M. Anzidei ◽  
R. Auriemma ◽  
C. Alfonso ◽  
...  
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Late Holocene ◽  
Relative Sea Level ◽  
Relative Sea Level Rise

Late Holocene salt marsh development under a regime of rapid relative-sea-level rise: Chezzetcook Inlet, Nova Scotia. Implications for the interpretation of palaeomarsh sequences

1993 ◽  
Vol 30 (7) ◽  
pp. 1374-1384 ◽  
Author(s):  
S. C. Jennings ◽  
R. W. G. Carter ◽  
J. D. Orford
Keyword(s):  
Nova Scotia ◽  
Salt Marsh ◽  
Sea Level Rise ◽  
Sea Level ◽  
Late Holocene ◽  
Environmental Gradients ◽  
Relative Sea Level ◽  
Spatial Changes ◽  
Relative Sea Level Rise ◽  
Outer Estuary

Pollen data illustrating a 2000-year record of salt marsh development have been obtained from a variety of outer-estuarine settings in close proximity to the present gravel-dominated coastal barriers at Chezzetcook Inlet, Nova Scotia. The relationship between the biostratigraphic and lithostratigraphic data and relative-sea-level movement is complex. In the outer estuary, temporal and spatial changes to the floral and sedimentological composition of the salt marsh reflect principally processes of estuarine and back-barrier sedimentation that resulted in steep environmental gradients and the development of regressive marsh–sediment complexes, despite a relative-sea-level rise of up to 3.8 mm/a during the late Holocene. Our results contrast with those from the inner estuary at Chezzetcook Inlet, where salt marsh has developed only over the last 200 years as a result of sediment inwash due to European land use, and followed a prolonged episode (approx. 5000 years) of tidal flat conditions. This contrast highlights differences in sediment input and distribution between the outer and inner estuary.

Late Holocene relative sea level rise and the Neoglacial history of the Greenland ice sheet

2009 ◽  
Vol 24 (4) ◽  
pp. 345-359 ◽  
Author(s):  
Antony J. Long ◽  
Sarah A. Woodroffe ◽  
Sue Dawson ◽  
David H. Roberts ◽  
Charlotte L. Bryant
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Late Holocene ◽  
Ice Sheet ◽  
Greenland Ice Sheet ◽  
Relative Sea Level ◽  
Relative Sea Level Rise ◽  
History Of

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
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