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Wednesday, July 15, 2020 | History

3 edition of Beaufort Sea coastal erosion, shoreline evolution, and sediment flux found in the catalog.

Beaufort Sea coastal erosion, shoreline evolution, and sediment flux

Erk Reimnitz

Beaufort Sea coastal erosion, shoreline evolution, and sediment flux

by Erk Reimnitz

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  • 10 Currently reading

Published by U.S. Dept. of the Interior, Geological Survey in [Reston, Va.?] .
Written in English

    Subjects:
  • Coast changes -- Beaufort Sea,
  • Shorelines -- Beaufort Sea.

  • Edition Notes

    Statementby Erk Reimnitz, Scot M. Graves, and Peter W. Barnes
    SeriesOpen-file report -- 85-380, U.S. Geological Survey open-file report -- 85-380
    ContributionsGraves, Scot M, Barnes, Peter W, Geological Survey (U.S.)
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL13609799M

    forests and trees provide some coastal protection and that the clearing of coastal forests and trees has increased the vulnerability of coasts to erosion (Figure ) — such as in Viet Nam (Mazda et al., ; Cat et al., ), Malaysia (Othman, ), Indonesia (Bird and Ongkosongo, ; Nurkin, ; Tjardana, ), Sri Lanka (Samarayanke, ), India File Size: KB.   We examined the fate of thawing ICD-OC in ambient conditions on coastal slopes of Muostakh, an island in the southeastern Laptev Sea that is disappearing as a result of erosion rates of up to 20 m.

    change, coastal geomorphology and sediment availability in driving beach erosion at the scale of individual beaches. Patterns of historical shoreline change are examined for spatial relationships to geomorphology and for tem-poral relationships to . Ø a shoreline management guide in the form of an interactive database containing the results sediment dynamics. Coastal erosion results in three different types of impacts (or risks): Ø loss of land with economical value Ø destruction of a natural sea defences (usually a dune system) as a result of a single storm event, which in turn.

    Coastal Processes and Beach Erosion Maine Geological Survey Sea-level Change This graph shows the fall and rise in the ocean over the l years. Sea level was at its highest (+70 m) ab years ago, and at its lowest ab years ago. In the lastFile Size: 2MB.   Coastal erosion at Skipsea, East Yorkshire, UK. Matthew J Thomas/Shutterstock February 7, Rising seas: to keep humans safe, let nature shape the coast.


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Beaufort Sea coastal erosion, shoreline evolution, and sediment flux by Erk Reimnitz Download PDF EPUB FB2

BEAUFORT SEA COASTAL EROSION, SHORELINE EVOLUTION, AND SEDIMENT FLUX By Erk Reimnitz, Scot M. Graves, and Peter W. Barnes INTRODUCTION Two sets of charts published by the U.S. Hydrographic Service and the National Ocean Sur­ vey, showing the shorelines for and Beaufort Sea coastal erosion respectively, are compared in this study ofCited by: Get this from a library.

Beaufort Sea coastal erosion, shoreline evolution, and sediment flux. [Erk Reimnitz; Scot M Graves; Peter W Barnes; Geological Survey (U.S.)].

A regional classification of shoreline segments along the Alaskan Beaufort Sea Coast was developed as the basis for quantifying coastal morphology, lithology, and carbon and mineral sediment fluxes.

We delineated 48 mainland segments totaling 1, km, as well as 1, km of spits and islands. Mainland coasts were grouped into five broad classes: exposed bluffs Cited by: Coastal erosion is the loss or displacement of land, or the long-term removal of sediment and rocks along the coastline due to the action of waves, currents, tides, wind-driven water, waterborne ice, or other impacts of storms.

The landward retreat of the shoreline can measured and described over a temporal scale of tides, seasons, and other short-term cyclic processes.

Erosional history of Cape Halkett and contemporary monitoring of bluff retreat, Beaufort Sea coast, Alaska Beaufort Sea coastal erosion mean flux of sediment per meter of. If erosion across the idealized beach profile is uneven, however, the volume of new sediment might be significantly lower and more sediment would be assumed to originate from inner-shelf erosion to balance the budget.

In either case, the scale of total sediment losses greatly exceeds the estimates of new sediment derived from beach and. The methodology of calculations is discussed in this paper. The amount of sediment released to the sea due to erosion of Anabar-Olenyok section of the coast is calculated as an example.

This amount is compared with the published data on the sediment discharge of the rivers draining into the Laptev by: Jones et al. (reported an extreme 25 m erosion event that occurred during one year at Drew Point, a particularly ice-rich site on the Alaskan Beaufort.

EROSION is the process by which wave action, wind, and storm surges remove sediment from beaches, dunes, bluffs, and headlands. Once removed from the shore, the sediment can be carried away into the coastal lagoons, deposited on the back of coastal barriers, or swept offshore; often, the sediment won’t return to the shoreline.

The erosion of the ice complex is of major importance for the sediment and organic carbon budget of the Laptev Sea because it contributes ∼76% of the coastal sediment flux (Rachold et al., b). Coastal erosion in the East Siberian Sea produces similar relative mass fluxes, via thermo-abrasion, melting of ground ice (Figs.

6A–6C and 6F. Coastal erosion is a natural phenomenon that can be exacerbated by human activities and by storms and tsunamis. In Modules 2 and 3, we briefly touched on the natural processes of coastal erosion.

We discussed the role of sediment movement and deposition in the evolution of coasts. A predictive, coastal erosion/shoreline change model has been developed for a small coastal segment near Drew Point, Beaufort Sea, Alaska. This coastal setting has experienced a dramatic increase in erosion since the early ’s.

In the Laptev Sea sediment input by coastal erosion (x t a-1) is therefore more important than in the CBS and the ratio between riverine and coastal sediment input amounts to Coastal erosion supplying x t a-1 is less significant for the sediment budget of the CBS where riverine sediment discharge exceeds coastal sediment input.

Lantuit, H & Pollard, WH (): Fifty years of coastal erosion and retrogressive thaw slump activity on Herschel Island, southern Beaufort Sea, Yukon Territory, Canada. Geomorphol Annex to the Master’s thesis topic of Gregor Pfalz. The term “coastal sediment processes” refers to the forces that erode, transport and deposit sediment along shorelines.

The coastal environment consists of constantly changing conditions, caused by the forces of wind, waves, currents and tides. Beaches are composed of sediment of various sizes, from large boulders to fine sand or mud.

Shoreline erosion assessments for Kiawah Island, Seabrook Island, Sullivans Island and Isle of Palms (SC). Development of a coastal-sediment-transport and oil pollution model (Alaska) for Minerals Management Services. Shoreline assessment and conceptual design for resort waterfront (~ acres) in Dubaiyeh, Kuwait.

Chronic erosion is associated with slow, long-term processes such as gradual shoreline adjustment associated with: (1) sea level rise, (2) land subsidence, (3) changes in sediment supply due to watershed modifications or dam building, and (4) decadal adjustments in rainfall, runoff, and wave climate associated with global warming.

Economics of Coastal Erosion and Adaptation to Sea Level Rise Sathya Gopalakrishnan, Craig E. Landry, Martin D. Smith, and John C. Whitehead Annual Review of Resource Economics Coastal Impacts Due to Sea-Level Rise Duncan M. FitzGerald, Michael S.

Cited by: Common boundary between air, land and ocean; Constantly being modified by waves, Coastal zone is impacted by intensive human activity - conflicts with nature; Beaches, barrier islands are fragile, short-lived features - inappropriate sites for development.

Wave energy converters, sediment transport and coastal erosion Arne Vӧgler1, David Christie1, Malcolm Lidster 1, James Morrison 1 University of the Highlands and Islands (UHI) – Lews Castle College Abstract As a simplified assumption the north westerly coastline of the Isle of Lewis in Scotland can be taken as a system in a state of Size: 1MB.

Visit to get more information about this book, to buy it in print, or to download it as a free PDF.Oceanographer, US Geological Survey, Branch of Pacific Marine Geology, Menlo Park, CA, Arctic Coastal Processes, geomorphology, coastal erosion, marine geophysical: seismic, imaging sonar mapping, aerial and satellite image analysis, sedimentology and sea ice processes.COASTAL EROSION PDF -Causes,Impact,Mitigation Measures – The shorelines and beaches in India serve multidimensional needs such as recreational purpose, seaport for maritime commerce, residential and commercial structures, etc.

With the growth of population in the coastal zone, more competing pressures are being put on the shores and beaches.