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Land Water Storage Effect on Sea Level Fluctuations (Case Study: Caspian Sea Basin, using the Modified Model)

Alemohammad, Hamed | 2009

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 39454 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Ardakanian, Reza
  7. Abstract:
  8. The increasing trend of Green House gases’ emission, after the Industrial Revolution, has changed the balance of these gases in the atmosphere. Aggregation of these gases in the atmosphere has caused the temperature increase at the Earth’s surface. This temperature increase has altered the stationary trend of climatic variables. This change has been entitled, Climate Change. One of the important impacts and challenges of Climate Change is Sea Level Fluctuation, which has so many factors. Due the last researches, changes in Land Water Storage are one of the probable factors that change the sea level. Land water storage consists of all of the waters in lakes, ponds, ground waters, snow and soil moisture. Before the last decade and as a result of not having a global monitoring system, direct observation and measurement of this volume of water was impossible. It was in 2002 that NASA launched the GRACE satellite and made it possible to monitor Land Water Storage directly. After that, many modeling of Land Water Storage have been done in different parts of the world. This research focuses on developing a model to estimate the impacts of changes in Land Water Storage on sea level fluctuations. A model based on an inverse linear method using the least square criterion is developed. The GRACE observations will be the inputs of this model. Furthermore the relation between these changes and the sea level fluctuations has been described. Moreover, the model has been used to estimate the Land Water Storage in Caspian Sea Basin in Iran. At the end, the change in the Caspian Sea Level due to the changes in Land Water Storage of the basin has been calculated. Results show that the changes in Land Water Storage in Caspian Sea basin can raise the Caspian Sea level about 10 mm per year in future
  9. Keywords:
  10. Climate Change ; Sea Level Change ; Land Water Storage ; GRASE Satellite ; Inverse Linear Method

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