Morphometric analysis of the drainage system and its hydrological implications in the rain shadow regions, Kerala, India

Auteur(s) et Affiliation(s)

THOMAS, J.

Dep. of Environmental Sciences, Univ. Kerala, Thiruvananthapuram, Inde

JOSEPH, S.

Dep. of Environmental Sciences, Univ. Kerala, Thiruvananthapuram, Inde

THRIVIKRAMJI, K.P.

Dep. of Geology, Univ. Kerala, Thiruvananthapuram, Inde

ABE, G.

Centre for Water Resources Development and Management, Kerala, Kottayam, Inde

Description :
The Pambar River Basin (PRB) lies on the rain shadow region of the southern Western Ghats, India, where climate showed marked intra-basin variation. A morphometric analysis was done to evaluate the drainage characteristics of PRB using topographical maps and digital elevation data. PRB was divided into eighteen 4th order basins (SB1-SB18), distributed along various climatic gradients. The influence of climate on drainage characteristics was evidently emphasized in basin morphometry. Four distinctively different classes were identified based on the morphometric similarities. The significance of morphometric analysis on the hydrological characterization is discussed and the relevance of the present study in water harvesting has been explicated.

Type de document :
Article de périodique

Source :
Journal of geographical sciences. Acta geographica sinica, issn : 1009-637X, 2011, vol. 21, n°. 6, p. 1077-1088, nombre de pages : 12, Références bibliographiques : 18 ref.

Date :
2011

Editeur :
Pays édition : Chine

Langue :
Anglais