Abstract
The natural behaviour of the earth’s surface is proceeding through morphometric analyses and its environmental aspects. Different aspects of morphometric analyses depends upon geological transformation of earth surface. The structure of landscape determines the river flow from upper to lower elevation. The morphometric studies of river integrates the new geo morphological features with the climatic factors such as rainfall, temperature, atmospheric pressure and wind. The drainage map is prepared using the toposheets, delineating the streams and watershed boundary. The strahler method classifies the stream orders for this sophisticated morphometric analyses. The quantitative morphometric analysis carried out in Neyyar sub-watershed includes Network analysis; Basin geometry; Texture analysis and Relief characteristics. The relief characteristics were used to generate the hypsometric curve which exhibit the monadnock and reliefs of coastal morphology. Drainage, Drainage Density, Geomorphology, Landuse/Landcover, and Slope were prepared using Geographic Information Systems (GIS). The present study concludes the influence of the parameters and thematic data in understanding the geomorphological problems and stating a sustainable development of water resources in Neyyar sub-watershed.
Highlights
Natural disasters like landslide, earthquake, flood, drought and cyclone are threatening mankind and causes loss of life and property damage
The shape and dimensions of the landforms is measured by the mathematical approaches to describe the geomorphic conditions and hydrological processes and this type of landform is known as morphometry
The civilisation and urbanisation patterns have been stronger near river system
Summary
Earthquake, flood, drought and cyclone are threatening mankind and causes loss of life and property damage. Such hazards have grown over the years due to the rapid growth of population and physical resources. The study of natural hazards and their effects happened to be one of the most dynamic areas of morphology. Morphological studies include the quantitative analysis of landform shapes and the processes modifying those landforms. Morphological approaches focuses on field observation, survey and laboratory test. Remote sensing (RS), computerassisted mapping, and Geographic Information Systems (GIS) have advanced rapidly since 1970. The RS and GIS based morphological approaches have considerable advantages over traditional geomorphological study
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