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Abstract

Owing to the careless human interference in the sensitive coastal areas, the earth surface is
witnessing a variety of changes in land use and land cover (LULC). An understanding of
LULC is an important aspect of maintaining a sustainable, eco-friendly coastal environment.
The present work highlights a spatiotemporal study on the LULC features of Malpe and
Udupi areas of coastal Karnataka. The study area faces diverse environmental challenges
including decline of mangrove forest, rising sea levels, population expansion and associated
anthropogenic encroachments in the fragile coastal regions. This investigation reports an
audited account of the modifications, in each class of LULC, using geospatial technologies.
We interpreted satellite imageries of IRS P6 LISS 4 data of 2006 and Resource Sat 2 LISS 4
data of 2016 and processed using ERDAS Imagine and ArcGIS. The LULC aspects were
categorized into eleven classes: residential, commercial and services, industrial, mixed urban
or built up land, cropland, fallow land, other agricultural land, mixed forest land,
waterbodies, Bare exposed rock and mixed barren land. The findings affirm that the
expansiveness of the built-up land area is directly proportional to the growth of the
population. Advanced technologies

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