Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Spatial and Temporal Variations of Erosion and Accretion: A Case of a Large Tropical River

    Access Status
    Fulltext not available
    Authors
    Saleem, Ashty
    Dewan, Ashraf
    Rahman, M.M.
    Nawfee, S.M.
    Karim, R.
    Lu, X.X.
    Date
    2019
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Saleem, A. and Dewan, A. and Rahman, M.M. and Nawfee, S.M. and Karim, R. and Lu, X.X. 2019. Spatial and Temporal Variations of Erosion and Accretion: A Case of a Large Tropical River. Earth Systems and Environment. 4 (1): pp. 167–181.
    Source Title
    Earth Systems and Environment
    DOI
    10.1007/s41748-019-00143-8
    ISSN
    2509-9426
    Faculty
    Faculty of Science and Engineering
    School
    School of Earth and Planetary Sciences (EPS)
    URI
    http://hdl.handle.net/20.500.11937/77565
    Collection
    • Curtin Research Publications
    Abstract

    Rapidly changing river systems can impact people, property and infrastructures. This study investigates bank erosion and accretion of the Padma River in Bangladesh, through space and time, using historical topographic maps, Corona and Landsat images and navigational charts. A geographic information system (GIS) was utilised to quantify the erosion and accretion pattern. In addition, volumetric changes in the riverbed were also investigated. Results indicated that the area of erosion and deposition vary both spatially and temporally. However, erosion was more prominent on the left bank, whilst accretion was high along the right bank, over the study period. Overall, average annual erosion rates were higher than accretion rates (17 km2 year−1 versus 13 km2 year−1). The volumes of morphological change for two epochs correspond to a net volume gain of 338.75 million m3 sediment between 1984 and 1992 but a net loss of 295.20 million m3 during the period 1992–2008. Regression analysis between bank erosion and mean annual flow, peak discharge and mean flood flow showed that two of the three independent variables were significantly associated with bank erosion. The area of large mid-channel bars increased over time, which may have had a role in shaping erosion and accretion processes of the river. As increased runoff is expected in the future, as a result of enhanced rainfall under warmer climate, knowledge of this work will help to determine the morphological response of fluvial systems in Bangladesh and elsewhere.

    Related items

    Showing items related by title, author, creator and subject.

    • Assessing channel changes of the Ganges-Padma River system in Bangladesh using Landsat and hydrological data
      Dewan, Ashraf; Corner, R.; Saleem, A.; Rahman, M.; Haider, M.; Rahman, M.; Sarker, M. (2017)
      © 2016 Elsevier B.V.The Ganga/Ganges1is an important river system in South Asia which supports the life and livelihoods of millions of people both in India and Bangladesh. The system has a number of names throughout its ...
    • Integrating subsurface stratigraphic records with satellite images to investigate channel change and bar evolution: a case study of the Padma River, Bangladesh
      Nawfee, S.; Dewan, Ashraf; Rashid, T. (2018)
      © 2018, Springer-Verlag GmbH Germany, part of Springer Nature. Landsat data and stratigraphic records were employed to determine channel changes and bar evolution of a selected reach of the Padma River in Bangladesh. ...
    • Evaluation of Decadal Shoreline Changes in the Coastal Region of Miri, Sarawak, Malaysia
      Anandkumar, A.; Vijith, H.; Ramasamy, Nagarajan ; Jonathan, M.P. (2018)
      The coastal region of Miri City, Malaysia, in recent years has been excessively occupied by urbanization related to industrial development. The stress and changes in the climatic conditions in the region have induced ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.