Advanced Search
MyIDEAS: Login

Identifying the impact of tidal level variation on river basin flooding

Contents:

Author Info

  • Gunathilaka, M. D. E. K.
  • Wikramanayake, W. A. L.
  • Perera, D. N. D.
Registered author(s):

    Abstract

    Different parts of Sri Lanka are regularly subjected to a wide range of natural disasters, of which floods are most common. When severe, flooding can decrease the economic and social development of the country and the Government of Sri Lanka has to spend huge amounts of money each year to address such problems. Floods occur mostly because of heavy rainfall combined with human-induced factors in the catchment areas. In this project, tidal level variation is considered as a factor for floods in the river basins. The tidal level changes periodically due to the gravitational attraction from the sun and the moon and the centrifugal force of the earth’s rotation. This project studied the relationship between changes in tide and river water level in the mouth of the Kelani River. Tidal data was collected from the Colombo Harbor, and water level data and river flow data was obtained from the Nagalagam Street gauge and Hanwella gauge. It was found that there is a direct relationship between tidal level and flood level in the river mouth area. Therefore, it is proposed that tidal level variations be considered in order to make accurate flood predictions in the river mouth areas.Length: pp.119-126

    Download Info

    If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
    File URL: http://publications.iwmi.org/pdf/H042864.pdf
    Download Restriction: no

    Bibliographic Info

    Paper provided by International Water Management Institute in its series Conference Papers with number h042864.

    as in new window
    Length:
    Date of creation: 2010
    Date of revision:
    Handle: RePEc:iwt:conppr:h042864

    Contact details of provider:
    Postal: 127, Sunil Mawatha, Pelawatte, Battaramulla
    Phone: +94-11 2880000
    Fax: +94-11 2786854
    Email:
    Web page: http://www.iwmi.cgiar.org/
    More information through EDIRC

    Related research

    Keywords: River basins;

    This paper has been announced in the following NEP Reports:

    References

    No references listed on IDEAS
    You can help add them by filling out this form.

    Citations

    Lists

    This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

    Statistics

    Access and download statistics

    Corrections

    When requesting a correction, please mention this item's handle: RePEc:iwt:conppr:h042864. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Chandima Gunadasa).

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If references are entirely missing, you can add them using this form.

    If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.