| Abstract Submission No. | ABS-1.1-0077 |
| Title of Abstract | RISING SEA LEVELS AND ITS IMPACT ON THE COASTLINE BOUNDARIES- A TEASER FOR THE EARTH SCIENTISTS |
| Authors | HV RAMBABU* |
| Organisation | NATIONAL GEOPHYSICAL RESEARCH INSTITUTE |
| Address | STREET NO 11 MEDCHEL, TELANGANA, India Pincode: 500039 E-mail: rambabungri@gmail.com |
| Country | India |
| Presentation | Oral |
| Abstract | Abstract It is always fascinating to see the satellite map of the earth on Google Earth where in we see the continents surrounded by oceans and seas with beautiful coastlines. The continental shelf, a part of the continent, appears to have been submerged under the sea, in the geological time scale. The sea levels are rising due to melting of ice caps in Antarctica and other polar regions due to global warming. The sea level rise results in shrinking land area of the continents. Recent studies indicate that the sea level is rising along the Indian coastlines by upto 4 millimetres per year. Even by taking the rise of 1 mm per year, there will be 1 metre rise at least in 1000 years Dwaraka in the west coast of India submerged under water about 5000 years ago is the best evidence. At this minimum rate of 1.mm per year sea level rise, India lost about 400000 square kilometres of coastal land area in the past 100000 years. At that same time, Sri Lanka and India appear to have been connected by land, without sea water in between. In less than 5000 years, one has to see a major part of Bangladesh as a continental shelf, as its average elevation is less than 5 meters. This analogy can also be extended to note that Australia and Tasmania were connected on similar lines of India and Sri Lanka.Moreover, detailed geophysical and geochemical studies are envisaged to make reliable predictions on the impact of sea level rise on continental land areas. |
| Keywords | Sea level rise, India, Australia |