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首页> 外文会议>Asian conference on remote sensing;ACRS >TRACKING SELECTED ICEBERG CALVING INCIDENCES IN WESTERN ANTARCTICA USING MULTISPECTRAL SATELLITE DATA
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TRACKING SELECTED ICEBERG CALVING INCIDENCES IN WESTERN ANTARCTICA USING MULTISPECTRAL SATELLITE DATA

机译：利用多光谱卫星数据跟踪西极南极选定的冰山崩塌事件

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Iceberg calving is the sudden disintegration of large chunk of iceberg from ice sheet, glacier, ice shelf into an ocean. It is necessary to monitor these events, as they play a crucial role in the current dynamics of the Western Antarctic Ice Sheet. The data has been acquired from LANDSAT (4-5, 7 and 8). The description of these events has been categorized into three major categories: to be calved, calved-icebergs and the potential locations that are vulnerable of being calved. Three minor calving events have been discussed in this study. The first event has been reported near Dean Island. The calved off iceberg from the location is having a surface area of 2.98 sq. km. The second event took place near Fletcher Island, where the rate at which the rift is growing is observed to be 0.53 km/year (2002-2009). Visual analysis has played a vital role in predicting the shape (tabular) of the iceberg which is yet to calve. The third event, which is of global attention, has been reported at Larsen C of Antarctic Peninsula, and has calved a huge iceberg. The difference between the lengths is calculated as 39.65 km and 53.42 km for the image dated 15-03-2005 and 08-03-2012 and 08-03-2012 and 02-02-2016 respectively. The rate of growth of the rift is 5.66 km/year until 2012 and 3.11 km/year until 2016. The study mainly focuses on usage of optical moderate resolution satellite data for monitoring and tracking iceberg calving events that can be used as an indicator of climate change.
机译：冰山崩裂是大块冰山突然从冰盖，冰川，冰架分解为海洋。有必要监视这些事件，因为它们在西方南极冰盖的当前动态中起着至关重要的作用。数据已从LANDSAT（4-5、7和8）获得。对这些事件的描述已分为三大类：要砍伐，被砍伐的冰山以及容易被砍伐的潜在地点。这项研究讨论了三个小产犊事件。据报道，第一个事件发生在迪恩岛附近。该地点的冰山倾泻面积为2.98平方公里。第二个事件发生在弗莱彻岛附近，据观察，裂谷的生长速度为每年0.53公里（2002-2009年）。视觉分析在预测尚未破裂的冰山的形状（表格）中起着至关重要的作用。第三次全球关注的事件已在南极半岛的拉尔森C报道，并割裂了一个巨大的冰山。对于日期为2005年3月15日，2012年8月3日，2012年8月3日和2016年2月2日的图像，长度之间的差异计算为39.65 km和53.42 km。到2012年，裂谷的增长率为5.66 km /年，到2016年，裂谷的增长率为3.11 km /年。该研究主要侧重于利用光学中分辨率卫星数据监测和跟踪冰山产犊事件，并将其用作气候指标。改变。

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