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首页> 外文期刊>Journal of Remote Sensing & GIS >Sea Level Rise and Coastal Vulnerability along the Eastern Coast of India through Geo-spatial Technologies
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Sea Level Rise and Coastal Vulnerability along the Eastern Coast of India through Geo-spatial Technologies

机译：通过地理空间技术在印度东海岸的海平面上升和沿海脆弱性

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The study emphasizes the local and regional level coastal vulnerability in the context of climate change induced present sea level rise using Sea level and tidal gauge data and advanced geo spatial technologies along the eastern coast of India. The coast is a potential hot spot zone were found the immediate effect of sea level rise. Presently climate change induced global warming and the melting of ice sheets and continental glaciers continually increase the sea level, which leads the natural hazards such as Tsunami, storm surges, thermal expansion of sea water and cyclones. The study was used SRTM global DEM with 90 m resolution to derive the coastal elevation, inundation risk zones along the eastern coast of India. The sea level rise scenario has been explained by using a 5th order polynomial curve which also interpolates and extrapolate the gaps within the available data of four tidal gauge stations. The results show that northern portion (Ganga-Brahmaputra delta region) of the coast, mostly affected by the sea level rise (4.7 mm per year) where the Sundarban region is the most vulnerable region due to the lower elevation (ranges 0 to 20 m) and higher tidal influence. Also Visakhapatnam and Bhubaneswar have a higher rate of sea level rise respectively 0.73 and 0.43 which increase the erosional activity and probable inundation level. As this study reveals the level of vulnerability, it helps to develop mitigation and adaptation measures in those most vulnerable areas to sea level rise problems. The final results support and suggests planners and decision makers in the spatial identification for the future strategies.
机译：该研究利用印度洋沿岸的海平面和潮汐仪数据以及先进的地理空间技术，强调了在气候变化导致当前海平面上升的背景下，地方和区域级沿海脆弱性。沿海地区是潜在的热点地区，被发现会引起海平面上升的直接影响。当前，气候变化引起的全球变暖以及冰盖和大陆冰川的融化不断增加海平面，这导致了自然灾害，例如海啸，风暴潮，海水的热膨胀和旋风。这项研究被用于SRTM全球DEM，其分辨率为90 m，以得出印度东部沿海的沿海海拔，淹没危险区。已经通过使用5阶多项式曲线解释了海平面上升的情况，该曲线还可以内插和外推四个潮汐测量站的可用数据内的间隙。结果表明，该海岸的北部（Ganga-Brahmaputra三角洲地区）主要受到海平面上升（每年4.7 mm）的影响，其中Sundarban地区由于海拔较低（范围为0至20 m，因此是最脆弱的地区） ）和更高的潮汐影响。维沙卡帕特南和布巴内斯瓦尔的海平面上升率也更高，分别为0.73和0.43，这增加了侵蚀活动和可能的淹没程度。由于这项研究揭示了脆弱性的程度，因此有助于在那些最脆弱的地区针对海平面上升问题制定缓解和适应措施。最终结果支持并建议规划者和决策者进行未来战略的空间识别。

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