Transport and distribution of bottom sediments at Pirita Beach

The basic factors affecting sediment supply for and transport processes at Pirita Beach, a sandy section of the south­eastern coast of Tallinn Bay, are analysed. Observations of bathymetry, sediment properties and sources, sediment transport processes and their changes arising from coastal engineeri...

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Main Authors: Soomere, Tarmo, Kask, Andres, Kask, Jüri, Nerman, Robert
Format: Article
Language:English
Published: Estonian Academy Publishers 2007-12-01
Series:Estonian Journal of Earth Sciences
Subjects:
Online Access:http://kirj.ee/public/Estonian_Journal_of_Earth_Sciences/2007/issue_4/earth-2007-4-4.pdf
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author Soomere, Tarmo
Kask, Andres
Kask, Jüri
Nerman, Robert
author_facet Soomere, Tarmo
Kask, Andres
Kask, Jüri
Nerman, Robert
author_sort Soomere, Tarmo
collection DOAJ
description The basic factors affecting sediment supply for and transport processes at Pirita Beach, a sandy section of the south­eastern coast of Tallinn Bay, are analysed. Observations of bathymetry, sediment properties and sources, sediment transport processes and their changes arising from coastal engineering activities are reported. The mean grain size is about 0.12 mm, with the fine sand fraction (0.063–0.125 mm) accounting for about 77% of the sediments. Coarse sand dominates only along the waterline. The content of coarser sediments is greater in the northern part of the beach. A number of coastal engineering structures have blocked natural sediment supplies. The beach suffers from sediment deficit now and has lost about 400 m3 of sand annually from the dry beach between 1997 and 2005.
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spelling doaj.art-1409ec4d26b64c94aecbe34762a6d3b02022-12-22T01:21:00ZengEstonian Academy PublishersEstonian Journal of Earth Sciences1736-47282007-12-01564233254Transport and distribution of bottom sediments at Pirita BeachSoomere, TarmoKask, AndresKask, JüriNerman, RobertThe basic factors affecting sediment supply for and transport processes at Pirita Beach, a sandy section of the south­eastern coast of Tallinn Bay, are analysed. Observations of bathymetry, sediment properties and sources, sediment transport processes and their changes arising from coastal engineering activities are reported. The mean grain size is about 0.12 mm, with the fine sand fraction (0.063–0.125 mm) accounting for about 77% of the sediments. Coarse sand dominates only along the waterline. The content of coarser sediments is greater in the northern part of the beach. A number of coastal engineering structures have blocked natural sediment supplies. The beach suffers from sediment deficit now and has lost about 400 m3 of sand annually from the dry beach between 1997 and 2005.http://kirj.ee/public/Estonian_Journal_of_Earth_Sciences/2007/issue_4/earth-2007-4-4.pdfcoastal processessediment transportbottom sedimentsGulf of FinlandTallinn Bay
spellingShingle Soomere, Tarmo
Kask, Andres
Kask, Jüri
Nerman, Robert
Transport and distribution of bottom sediments at Pirita Beach
Estonian Journal of Earth Sciences
coastal processes
sediment transport
bottom sediments
Gulf of Finland
Tallinn Bay
title Transport and distribution of bottom sediments at Pirita Beach
title_full Transport and distribution of bottom sediments at Pirita Beach
title_fullStr Transport and distribution of bottom sediments at Pirita Beach
title_full_unstemmed Transport and distribution of bottom sediments at Pirita Beach
title_short Transport and distribution of bottom sediments at Pirita Beach
title_sort transport and distribution of bottom sediments at pirita beach
topic coastal processes
sediment transport
bottom sediments
Gulf of Finland
Tallinn Bay
url http://kirj.ee/public/Estonian_Journal_of_Earth_Sciences/2007/issue_4/earth-2007-4-4.pdf
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AT nermanrobert transportanddistributionofbottomsedimentsatpiritabeach