scholarly journals Vulnerability of U.S. National Parks to Sea-Level Rise and Coastal Change

Fact Sheet ◽  
2002 ◽  
Author(s):  
E. Robert Thieler ◽  
S. Jeffress Williams ◽  
Rebecca Beavers
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
National Parks ◽  
Coastal Change

Facies anatomy of an Upper Cambrian grand cycle: Bison Creek and Mistaya formations, southern Alberta

1989 ◽  
Vol 26 (11) ◽  
pp. 2292-2304 ◽  
Author(s):  
Stephen R. Westrop
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
National Parks ◽  
Carbonate Platform ◽  
Half Cycle ◽  
Upper Cambrian ◽  
Facies Associations ◽  
Southern Alberta ◽  
Shallow Subtidal ◽  
Carbonate Bank

The Bison Creek and Mistaya formations form the youngest Cambrian sedimentary grand cycle exposed in Banff and Jasper national parks. The shaly half-cycle of the Bison Creek Formation records the displacement of a carbonate bank during a major rise in sea level that can be identified in other parts of North America. Lithofacies of the Bison Creek Formation fall into three recurrent associations that represent sedimentation in shallow, subtidal, storm-dominated shelf settings. The Mistaya Formation records the reestablishment of carbonate bank deposition, probably due to a decrease in the rate of sea-level rise, and includes two facies associations that represent a mosaic of shallow subtidal to supratidal environments. The grand cycle was terminated by a sea-level rise, possibly eustatic in nature, that drowned the carbonate platform. The overlying shales, mudstones, packstones, grainstones, and rudstones of the Survey Peak Formation mark a return to subtidal, storm-dominated shelf conditions.

Assessment of Inundation Risk from Sea Level Rise and Storm Surge in Northeastern Coastal National Parks

2013 ◽  
Vol 291 ◽  
pp. 1-16 ◽  
Author(s):  
Angelica Murdukhayeva ◽  
Peter August ◽  
Michael Bradley ◽  
Charles LaBash ◽  
Nigel Shaw
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Storm Surge ◽  
National Parks

Sea-level rise and coastal change: the past as a guide to the future

2012 ◽  
Vol 54 ◽  
pp. 4-11 ◽  
Author(s):  
Colin D. Woodroffe ◽  
Colin V. Murray-Wallace
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Coastal Change ◽  
The Past ◽  
The Future

A novel shoreface translation model for predicting future coastal change

2020 ◽  
Author(s):  
Jak McCarroll ◽  
Gerd Masselink ◽  
Nieves Valiente ◽  
Mark Wiggins ◽  
Josie-Alice Kirby ◽  
...  
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Prediction Models ◽  
Coastal Change ◽  
Coastal Environments ◽  
Short Term ◽  
Dune Erosion ◽  
Translation Model ◽  
Bruun Rule ◽  
The Impact

<p>Predicting changes to global shorelines presents a challenge that will become increasingly urgent over coming years as sea-level rise (SLR) accelerates. Current shoreline prediction models typically estimate the impact of SLR using variations of the ‘Bruun Rule’, which fails to account for many relevant processes, potentially producing erroneous results. To address this shortcoming, we introduce a simple rule-based model that predicts change across a wide variety of sand, gravel, rock and engineered (anthropogenic) coastal environments, at the scale of years to centuries, accounting for trend rates of change as well as natural short-term variability. Applying recent findings of laboratory and field-based research, the model translates 2D cross-sections of the shoreface, then integrates these changes across multiple alongshore profiles (into pseudo-3D). Uncertainty is accounted for using a probability distribution for inputs (e.g., rate of SLR, depth of closure, depth to bedrock). The model accounts for: (1) dune erosion and slumping [for large dunes]; (2) barrier rollback and overwash [for low barriers]; (3) aeolian dune accretion; (4) non-erodible bedrock layers, including those below ‘perched’ dunes; (5) seawall and revetment backed profiles; (6) onshore transport from the lower shoreface; (7) cross-shore variability due to storm erosion; (8) alongshore variability due to beach rotation; (9) alongshore re-distribution of dune erosion across the shoreface of a closed embayment; and (10) other sources and sinks (e.g., estuary infill, longshore flux, headland bypassing, biogenic production). We apply the model to two extensively monitored macrotidal embayments in the UK: Perranporth (sandy, dissipative, cross-shore dominant transport) and Start Bay (gravel, reflective, bi-directional alongshore dominant). For the dissipative sandy site, the primary modes of coastal change are predicted to be: (1) sea-level rise profile translation; and (2) extreme event cross-shore fluctuations. By contrast, for the reflective gravel site, the primary modes are: (1) short-term fluctuations in alongshore rotation; and (2) multi-decadal trends in longshore flux. For the steep gravel barrier, sea-level rise profile translation is important but secondary. Relative to the new model, the Bruun Rule underpredicts shoreline recession in front of cliffs and seawalls, and overpredicts where large erodible dunes are present. This new shoreface translation model is easily transferable to many coastal environments and will provide a useful tool for coastal practitioners to make rapid assessments of future coastal change.</p>

Glacial Contributions to 21st Century Sea Level Rise

Eos ◽  
2020 ◽  
Vol 101 ◽  
Author(s):  
Kate Wheeling
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
21St Century ◽  
Mass Change ◽  
Sources Of Uncertainty

Researchers identify the main sources of uncertainty in projections of global glacier mass change, which is expected to add about 8–16 centimeters to sea level, through this century.

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