Abstract
Barren Island volcano located in Bay of Bengal was active between March 1991 to December 1991. In the present study, an attempt has been made to compare pre‐and post‐eruption TM data to assess the changes caused by the recent eruption. The study has brought out four significant aspects of the volcano, viz. (1) geomorphic changes in the form of a newly formed crater which is 500 mt across, (2) seaward extension of land due to the deposition of the recent lava flows, (3) regrowth of vegetation burnt due to the recent eruption, and (4) different composition of lava flows erupted during the recent eruption (basaltic andesite) from the 1789–1803 eruption (Tholeoite basalt). Post‐eruption TM band 6 data of 16.12.1991 and 17.1.1992 showed fumarolic activity. An attempt has also been made to generate 3‐D perspective views of Barren Island volcano depicting pre‐, syn‐ and post‐eruption changes. The 3‐D views have provided convincing visualisations of the terrain and enhanced interpretation of newly formed volcanic landforms.
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