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首页> 外文会议>International Conference on Water Resources, Coastal and Ocean Engineering >Salient Long-Term Observations of SST along Kerala Coast and Its Comparative Variation with Lakshadweep Coast
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Salient Long-Term Observations of SST along Kerala Coast and Its Comparative Variation with Lakshadweep Coast

机译：沿喀拉拉邦海岸SST的显着长期观测及其与Lakshadweep Coast的比较变异

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Sea Surface Temperature (SST), being one of the most important geo-physical parameters in the ocean, plays an important role in global climate change. The spatial attribute of oceanographic data makes them highly suitable for GIS analysis as GIS provides a natural framework for the acquisition, storage, and analysis of georeferenced data. In the present study we estimate the recent SST trends using a satellite-based climatology to characterize changes in sea surface temperature along Kerala coast since 1985. These SST variations are mapped using thermal infrared remote sensing and microwave remote sensing satellites through day and night. SST measurements derived from Advanced Very High Resolution Radiometer (AVHRR) and Moderate Resolution Imaging Spectroradiometer (MODIS) for 26 years (1985 to 2010) period were examined. The trend analysis of annual mean SST shows that inter-annual mode of SST variations dominates. An increasing trend of SST is observed in the offshore area of Kerala coast. The increasing trend about 0.2°C per decade is observed in the study area. The higher rate of increment of SST in Kerala coast may be attributed to rapid industrialization, increase in air temperature. The SST analysis for Lakshadweep islands is also done and the results are compared with that of Kerala coast. It is found that the SST of Kerala coast is higher during day time and lower during night time which may be influenced by the presence of landmass nearby. While the SST variations of Lakshadweep area are part of the regional scale factors.
机译：海表温度（SST），在海洋中最重要的地球物理参数是之一，在全球气候变化的重要作用。海洋数据的空间属性使得它们非常适合于GIS分析作为GIS提供了用于获取，存储，和地理参考数据的分析的自然框架。在本研究中，我们估计使用基于卫星的气候最近SST趋势来表征沿着海岸喀拉拉邦海面温度变化自1985年以来，这些SST变化被使用热红外遥感和微波通过昼夜遥感卫星映射。从先进甚高分辨率辐射仪（AVHRR）和中分辨率成像光谱仪（MODIS）26年（1985至2010年）期间衍生的SST测量检查。年平均SST显示趋势分析说，SST变化占主导地位的年际模式。 SST有增加的趋势在喀拉拉邦海岸近海区域观察。每十年约0.2℃下的增加的趋势在研究区域中观察到。在喀拉拉邦海岸SST的增量率较高可能是由于快速的工业化，增加空气温度。为拉克沙群岛的海温分析也做了，结果与喀拉拉邦海岸的比较。研究发现，喀拉拉邦海岸的SST是在此期间，可通过大陆的附近存在影响夜间白天较高和较低。虽然拉克沙群岛地区海温变化是区域规模因素的一部分。

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