Technical note: Lineament detection on Mount Cameroon during the 1999 volcanic eruptions using Landsat ETM |
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| Authors: | E E Nama Corresponding author |
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| Affiliation: | 1. School of Environment and Life Sciences , University of Salford , Greater Manchester, M5 4WT, UK e.nama@lineone.net |
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| Abstract: | A study of the active Mount Cameroon volcano, located south west along the Cameroon Volcanic Line, was carried out during the 1999 volcanic eruption, using Landsat Enhanced Thematic Mapper (ETM) imagery. It investigated geologic deformations expressed as faults, cracks and lineaments resulting from the eruption. Various image processing techniques were tested and compared in order to detect the most effective output. Principal Component Analysis was found to be useful to determine the extent of deformations caused during the 1999 volcanic eruptions. Landsat ETM revealed the formation of faults and lineaments with proximity to eruption vents. The interpretation obtained from satellite imagery was cross checked with field and ground truthing data. This paper identifies the dimensions and orientations of the newly formed geologic features. |
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