ISSN 1058-3912
Electronic journal of the International Association
for Environmental Hydrology
On the World Wide Web at http://www.hydroweb.com
JEH Volume 6 (1998), Paper 10, December 1998
Posted
December 7, 1998
APPLICATION OF A NUMERICAL MODEL TO PREDICT FRESH WATER DEPTH IN ISLANDS
DUE TO CLIMATE CHANGE: AGATTI ISLAND, INDIA
A.Ghosh Bobba
National Water Research Institute, Canada Centre for Inland
Waters, Environment Canada, Ontario, Canada
ABSTRACT
Global warming could raise sea level by several tens of centimeters
in the next fifty years, about one meter in the century, and several meters
in the next few centuries by expanding ocean water, by melting glaciers,
and by causing ice sheets to melt or slide into the ocean. Such a rise
would inundate deltas, coral atoll islands, and other coastal lowlands,
erode beaches, exacerbate coastal flooding and threaten water quality in
estuaries and aquifers. Saltwater intrusion is a serious environmental
problem to coastal subsurface water systems around the world due to climate
change. In the development of subsurface water protection and rehabilitation
strategies, mathematical models play an important role in coastal areas.
A density dependent model is applied to predict freshwater depth in coastal
areas of islands. A case history from a small island, Agatti Island, in
the Laccadive Islands of India, is used to illustrate the current modeling
methodology and mechanisms of saltwater intrusion due to climate change.
Reference: Bobba, A. G.; Application of a Numerical Model
to Predict Fresh Water Depth in Islands Due to Climate Change: Agatti Island,
India, Journal of Environmental Hydrology, Vol. 6, Paper 10, December
1998.
A.Ghosh Bobba
National Water Research Institute
Canada Centre for Inland Waters
Environment Canada
Burlington, ON L7R 4A6
Canada
E-mail: ghosh.bobba@cciw.ca