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Shore

About: Shore is a research topic. Over the lifetime, 11493 publications have been published within this topic receiving 180744 citations. The topic is also known as: bank.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the authors provide a series of maps that estimate the areas of exposed land in the Indo-Australian region during periods of the Pleistocene when sea levels were below present day levels.
Abstract: Aim Glaciation and deglaciation and the accompanying lowering and rising of sea levels during the late Pleistocene are known to have greatly affected land mass configurations in Southeast Asia. The objective of this report is to provide a series of maps that estimate the areas of exposed land in the Indo-Australian region during periods of the Pleistocene when sea levels were below present day levels. Location The maps presented here cover tropical Southeast Asia and Austral-Asia. The east–west coverage extends 8000 km from Australia to Sri Lanka. The north–south coverage extends 5000 km from Taiwan to Australia. Methods Present-day bathymetric depth contours were used to estimate past shore lines and the locations of the major drowned river systems of the Sunda and Sahul shelves. The timing of sea level changes associated with glaciation over the past 250,000 years was taken from multiple sources that, in some cases, account for tectonic uplift and subsidence during the period in question. Results This report provides a series of maps that estimate the areas of exposed land in the Indo-Australian region during periods of 17,000, 150,000 and 250,000 years before present. The ancient shorelines are based on present day depth contours of 10, 20, 30, 40, 50, 75, 100 and 120 m. On the maps depicting shorelines at 75, 100 and 120 m below present levels the major Pleistocene river systems of the Sunda and Sahul shelves are depicted. Estimates of the number of major sea level fluctuation events and the duration of time that sea levels were at or below the illustrated level are provided. Main conclusions Previous reconstructions of sea-level change during the Pleistocene have emphasized the maximum lows. The perspective provided here emphasizes that sea levels were at their maximum lows for relatively short periods of time but were at or below intermediate levels (e.g. at or below 40 m below present-day levels) for more than half of each of the time periods considered.

1,766 citations

Book
01 Jan 1976
TL;DR: The Geomorphology of Eroding and Accreting Coasts and the Protection of Our Coasts: An Introduction to the Study of Beaches as discussed by the authors is a good starting point for this paper.
Abstract: 1. An Introduction to the Study of Beaches. 2. The Geomorphology of Eroding and Accreting Coasts. 3. Beach Morphology and Sediments. 4. The Changing Level of the Sea. 5. The Generation of Waves and their Movement Across the Sea. 6. Wave Breaking and Surf-Zone Processes. 7. Beach Profiles and Cross-Shore Sediment Transport. 8. Wave-Generated Currents in the Nearshore. 9. The Longshore Transport of Sediments on Beaches. 10. Shoreline Planforms and Models to Simulate Their Evolution. 11. Nearshore Morphodynamics. 12. The Protection of Our Coasts. Index.

1,624 citations

Journal ArticleDOI
Per Bruun1
TL;DR: It is established fact that sea level is rising slowly and irregularly; also, it seems to be true that erosion on most seashores built up of alluvial materials greatly exceeds accretion; relationship between rise of sea level and erosion as discussed by the authors.
Abstract: It is established fact that sea level is rising slowly and irregularly; also, it seems to be true that erosion on most seashores built up of alluvial materials greatly exceeds accretion; relationship between rise of sea level and erosion.

1,333 citations

Journal ArticleDOI
TL;DR: Recently, a third category of shoreline indicators has begun to be reported in the literature, based on the application of imageprocessing techniques to extract proxy shoreline features from digital coastal images that are not necessarily visible to the human eye as mentioned in this paper.
Abstract: BOAK, E.H. and TURNER, I.L., 2005. Shoreline Definition and Detection: A Review. Journal of Coastal Research, 21(4), 688‐703. West Palm Beach (Florida), ISSN 0749-0208. Analysis of shoreline variability and shoreline erosion-accretion trends is fundamental to a broad range of investigations undertaken by coastal scientists, coastal engineers, and coastal managers. Though strictly defined as the intersection of water and land surfaces, for practical purposes, the dynamic nature of this boundary and its dependence on the temporal and spatial scale at which it is being considered results in the use of a range of shoreline indicators. These proxies are generally one of two types: either a feature that is visibly discernible in coastal imagery (e.g., highwater line [HWL]) or the intersection of a tidal datum with the coastal profile (e.g., mean high water [MHW]). Recently, a third category of shoreline indicator has begun to be reported in the literature, based on the application of imageprocessing techniques to extract proxy shoreline features from digital coastal images that are not necessarily visible to the human eye. Potential data sources for shoreline investigation include historical photographs, coastal maps and charts, aerial photography, beach surveys, in situ geographic positioning system shorelines, and a range of digital elevation or image data derived from remote sensing platforms. The identification of a ‘‘shoreline’’ involves two stages: the first requires the selection and definition of a shoreline indicator feature, and the second is the detection of the chosen shoreline feature within the available data source. To date, the most common shoreline detection technique has been subjective visual interpretation. Recent photogrammetry, topographic data collection, and digital image-processing techniques now make it possible for the coastal investigator to use objective shoreline detection methods. The remaining challenge is to improve the quantitative and process-based understanding of these shoreline indicator features and their spatial relationship relative to the physical land‐water boundary.

1,033 citations

01 Jan 1977
TL;DR: The Geomorphology of Eroding and Accreting Coasts and the Protection of Our Coasts: An Introduction to the Study of Beaches as discussed by the authors is a good starting point for this paper.
Abstract: 1. An Introduction to the Study of Beaches. 2. The Geomorphology of Eroding and Accreting Coasts. 3. Beach Morphology and Sediments. 4. The Changing Level of the Sea. 5. The Generation of Waves and their Movement Across the Sea. 6. Wave Breaking and Surf-Zone Processes. 7. Beach Profiles and Cross-Shore Sediment Transport. 8. Wave-Generated Currents in the Nearshore. 9. The Longshore Transport of Sediments on Beaches. 10. Shoreline Planforms and Models to Simulate Their Evolution. 11. Nearshore Morphodynamics. 12. The Protection of Our Coasts. Index.

890 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023887
20221,965
2021311
2020425
2019413
2018441