Investigation of coastal trapped waves on the southern continental shelf of Caspian sea of Babolsar, off Mazandaran

The Caspian Sea, as the largest island water body on the Earth has a unique marine environment and is of great importance for the world and the lateral countries around it.The continental shelf is one of the important marine areas. The continental shelf as a boundary between land and sea is one of the most important and most diverse ecosystems. Continental shelf has vast oil, coal, sulfur, metals sources, so this region is economically very important. Currents are the important factors to distribute pollution. One of the basic requirements for environmental, biological or any other marine related studies is the understandings about circulation and characteristics of the currents. Currents which due to coastal trapped are one of the most important currents on the continental shelf. Therefore, studying about currents and waves on the continental shelf is very important.The shelf in the study area covers a band of coastal waters with the length of 24 km and width of 12 km. The shelf in the study area has a width of about 10 km. The depth gradually increases to about 45 m near the shelf break, after that the depth sharply increases to 400 m at about 18 km from the coastline.This study attempts to introduce trapped waves and the probability of occurrence each of these waves.

کلیدواژه ها:

Trapped waves ، continental shelf ، Babolsar