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SEA LEVEL RISE QUANTIFICATION USING MULTI-MISSION SATELLITE ALTIMETER OVER MALAYSIAN SEAS

机译:在马来西亚海洋中使用多功能卫星高度计的海平面上升量化

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Rise in sea level is one of the disastrous impacts of climate change. A relatively small increase in sea level could inherently affect the natural coastal system. This study presents an approach to quantify the sea level trend based on a combination of multi-mission satellite altimeters in the Malaysian seas over a period of 19 years. Six altimeter missions were used to derive the absolute sea level from the Radar Altimeter Database System (RADS). Sea tidal data were used to verify the satellite derived sea level. Eight selected areas in the east and west coast of Peninsular Malaysia and East Malaysia are chosen for this data verification. The result in turn used for the pattern and correlation analysis between the satellite derived sea level rise and sea tidal level anomaly (SLA). Next, the time series of the sea level trend is quantified using robust fit regression analysis. The findings clearly show that the absolute sea level trend is rising and varying over the Malaysian seas with the rate of sea level varies and gradually increases from east to west of Malaysia. Highly confident and correlation level of the 19-year measurement data permits the absolute sea level trend of the Malaysia seas has raised at the rate of 2.67 +/- 0.81 mm/yr to 6.05 +/- 0.78 mm/yr for the chosen sub-areas, with an overall mean of 4.56 +/- 0.68 mm/yr. This study offers valuable sea level information to be applied in wide range of climatology, related environmental issue such as flood and global warming in Malaysia.
机译:海平面上升是气候变化的灾难性影响之一。海平面的相对较小的增加可能会影响自然沿海系统。本研究提出了一种基于马来西亚海域多功率卫星高度计的组合来量化海平面趋势的方法。六个高度计任务用于从雷达高度计数据库系统(RAD)导出绝对海平面。海潮数据用于验证卫星衍生的海平面。选择了半岛马来西亚和西部海岸的八个选定地区,为此数据验证选择了。结果用于卫星衍生海平面上升与海潮水平异常(SLA)之间的模式和相关分析。接下来,使用稳健的拟合回归分析量化海平趋势的时间序列。调查结果清楚地表明,绝对海平面趋势正在上升,在马来西亚海洋上随着海平面的速度而变化,逐渐从东部到马来西亚西部。 19年的测量数据的高度自信和相关水平允许马来西亚海洋的绝对海平面趋势已经以2.67 +/- 0.81 mm /毫升至6.05 +/- 0.78 mm / yr为所选的子区域,总体平均值为4.56 +/- 0.68 mm / yr。本研究提供了有价值的海平面信息,以适用于广泛的气候学,相关的环境问题,如洪水和全球变暖在马来西亚。

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