Coastal plains are a geologic feature found around the world and on both the eastern and western coasts of India. Coastal plains are characterized by an area of flat low lying land that is situated adjacent to a water body often a sea or ocean. It is also of note that coastal plains are separated from the interior of the larger land mass by other unique features. Coastal plains have limited vegetation; however grasses and trees are not uncommon. The coastal plains of India are relatively expansive regions which contribute significantly to the geography of the region.
Eastern Coastal Plains The eastern coastal plains are located on a wide stretch of land between the Eastern Ghats of India and the Bay of Bengal. This stretch of land stretches to 120 km in width at parts. The eastern coastal plains extend from Tamil Nadu in the south to West Bengal in the north. The eastern coastal plains have rivers draining into them and river deltas also occupy the valleys. The region of the eastern coastal plains is an expansive area and is divided into six regions.
The six regions of the eastern coastal plains of India are the Mahanadi Delta, the Southern Andhra Pradesh Plain, the Krishna Godavari deltas, the Kanyakumari Coast, the Coromandel and the Sandy Coastal regions. The eastern coastal plains are characterized by a temperature that exceeds 30 degrees Celsius and also experiences high levels of humidity. The rainfall of the region is also abundant in the region with rainfall amounts in excess of 1000mm annually with the amount usually approaching 3000mm.
It is also of note that this region of the eastern coastal plains is subject to both northeast and southwest monsoon rains when these storms are in season. Western Coastal Plains The western coastal plain of India in contrast to the eastern coastal plain is located on a narrow strip of land. The western coastal plains are located in the west of India between the Western Ghats and the Arabian Sea. They extend from Gujarat in the north down 50 km to the south in Kerala and are characterized by numerous backwaters and rivers that flow into the region.
These rivers that flow into the region lead to the forming of estuaries that are found in the western coastal plains of India. The storm activity here is considerably less than on the eastern coastal plains. The maximum storm activity on the western coastal plains occurs in the month of March. The western coastal plains are smaller than their eastern counterpart and the region is divided into three parts. The western coastal plains are divided into the regions of Konkan, Kanara, and the Malabar Coast.