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The environment that conditions the Mandovi and Zuari estuaries

DRS at CSIR-National Institute of Oceanography

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Title The environment that conditions the Mandovi and Zuari estuaries
 
Creator Shetye, S.R.
Shankar, D.
Neetu, S.
Suprit, K.
Michael, G.S.
Chandramohan, P.
 
Subject coastal plain estuaries
Arabian Sea
 
Description The Mandovi and Zuari estuaries in Goa, India are coastal plain estuaries located between the Sahyadris (Western Ghats) and the Arabian Sea. Each estuary is about 50 km long. On the basis of geometry, they can be divided into two distinct regimes. The first, on the seaward side, is the bay, which is about 10 km (5 km) long in case of the Zuari (Mandovi). The width at the mouth of Zuari is about 5 km; mouth of Mandovi is narrower. The second regime is the channel that connects the bay to the head of each estuary. Each is less than a km wide and narrows in the upstream direction. Owing to their wide mouth and small length, each bay comes under strong influence of the conditions, including wind waves, at the open coast; the channels mark the transition between the bays and the heads of the two estuaries. The annual cycle of salinity and other fields in the estuary have two distinct periods: the wet period during roughly June–September, the time of the Indian Summer Monsoon; and, the dry period from November–May. During the wet period the runoff in the Mandovi and Zuari estuaries is much greater than the volume of the estuaries. The volume of freshwater flowing through the Mandovi exceeds the volume of the estuary by a factor of at least 20. Though this figure is smaller for the Zuari, both estuaries are flushed many times over during the wet period. It is the flushing that determines the variability of fields like salinity during this period.
 
Date 2007-07-24T11:33:35Z
2007-07-24T11:33:35Z
2007
 
Type Book Chapter
 
Identifier In "The Mandovi and Zuari estuaries. eds. by: Shetye, S.R.; DileepKumar, M.; Shankar, D.", 3-27p.
http://drs.nio.org/drs/handle/2264/624
 
Language en
 
Format 1059100 bytes
application/pdf
 
Publisher National Institute of Oceanography, India