| Investigation of dynamic topography variations in Caspian Sea using satellite observations |
| Paper ID : 1262-SMPR |
| Authors: |
|
Hamid Bayat Barooni *1, mojtaba ezam1, Abbasali Aliakbari Bidokhti2, Masoud Torabi Azad3 1Department of Marine Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran 2Institute of Geophysics, University of Tehran, Tehran, Iran 3Department of Marine Science and Technology, Islamic Azad University, Tehran North Branch, Tehran, Iran |
| Abstract: |
| The Caspian Sea is the largest inland body of water in the world and the Caspian coast of Iran is about 740 km long, on the bottom of Sea. In this research, we aim to obtain an algorithm for Caspian Sea level and shoreline changes. To this end, sea level anomalies (SLA) obtained from satellite observations is employed. The SLA data are collected from Archiving, Validation and Interpretation of Satellite Oceanographic Data (AVISO) during 20 years from 1993 to 2012. Investigating of sea level changes indicates a negative trend so that the difference between the maximum and minimum values of sea level in these 20 years is -1.287 meter. It results in the Caspian Sea descent process starting from 1995 until now. This leads to drying of large amounts of land of Gorgan Gulf. The impact of global warming on the world's largest lake, shows its effects as a rapid reduction in the level of water, which can be economically, socially and environmentally hazardous. |
| Keywords: |
| Sea level anomalies, Mean sea level, Mean sea surface, Dynamic topography,Altimetry, Geoid |
| Status : Paper Accepted (Poster Presentation) |
