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(Article of periodic en Anglais - 2013)

Document title

Mapping changing shorelines in the Malombe and Chiuta lakes of Malawi—environmental effects of recent climatic variations

Authors(s) and Affiliation(s)

DULANYA Z. (1 3) ; REED J.M. (2) ; TRAUTH M.H. (3) ;
(1) Geography and Earth Science Dept., Zomba, MALAWI
(2) Geography Dept., Univ., Hull, ROYAUME-UNI
(3) Inst. für Erd- und Umweltwissenschaften, Univ., Postdam, ALLEMAGNE

Abstract

This study examines patterns of climate variability by mapping shoreline changes between 1973 and 2008 for 2 shallow lakes in Malawi. Multi-temporal LANDSAT data covering 8 different years within the period of investigation were utilised for lake-area mapping, using image classification techniques. The approach was verified using simple comparisons with local rainfall data and satellite altimetry data. Results indicated that the lake areas varied between the different years investigated and that, although the lakes were affected by the same climate-forcing mechanisms, the individual basin characteristics had a critical effect on their responses. The most likely drivers for the climate-related shoreline variations are the El Niño/Southern Oscillation (ENSO) and the Indian Ocean Dipole (IOD), causing synchronous changes to the water levels in both lakes, albeit showing differences in climate signal amplification

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2013, vol. 104 [pp. 111-119]

Bibliographic references : 33 ref.

Collation : 7 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2012.10.016

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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