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首页> 外文期刊>Selected Topics in Applied Earth Observations and Remote Sensing, IEEE Journal of >Adaptive Classification of Supra-Glacial Lakes on the West Greenland Ice Sheet
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Adaptive Classification of Supra-Glacial Lakes on the West Greenland Ice Sheet

机译：西格陵兰冰原上的超冰川湖的自适应分类

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摘要

Meltwater is stored in supra-glacial lakes on the Greenland Ice Sheet. Connections between the melt water, ice sheet dynamics and the extent of the surface hydrological system have been observed. This highlights the importance of being able to study the surface hydrology over large spatial scales with a high temporal resolution. In this study, we develop an adaptive classification method to identify and map these supra-glacial lakes using high temporal resolution satellite images from the Moderate-resolution Imaging Spectroradiometer (MODIS) sensor. Surface reflectance images from 2007 are used to extract information about the lakes, their morphologies and their surroundings. Using a multiclass approach we can recognize lake types that have previously been difficult to classify, such as deep lakes, lakes within cryoconite areas and lakes with floating ice. Given significant increases in melting in recent years relative to the long term record the inclusion of deep lakes might prove particularly important.
机译：融水储存在格陵兰冰原上的超冰川湖泊中。已经观察到融化水，冰原动力学和地表水文系统范围之间的联系。这突出了能够以高时间分辨率在较大的空间尺度上研究地表水文学的重要性。在这项研究中，我们开发了一种自适应分类方法，以使用来自中等分辨率成像光谱仪（MODIS）传感器的高时间分辨率卫星图像来识别和绘制这些冰川湖。 2007年的表面反射率图像用于提取有关湖泊，湖泊形态和周围环境的信息。使用多类方法，我们可以识别以前难以分类的湖泊类型，例如深水湖泊，冰冻土区域内的湖泊和浮冰湖泊。考虑到近年来相对于长期记录而言融化的显着增加，包括深湖可能被证明特别重要。

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