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海冰密集度是描述海冰的重要参数之一.海冰现场数据采集受观测环境和观测范围的限制,难以用于大范围海冰密集度的研究,而测高卫星具有全天时、全天候、大范围、高分辨率和长时间观测等多种优点,可弥补现场观测手段的不足.本文利用测高卫星雷达回波波形与反射面反射特性的关系,进行回波波形的波形分类,提出了利用测高卫星雷达回波波形确定南极海冰密集度的算法.以南极普里兹湾为实验区域,采用该算法由ERS-1/GM回波波形确定其一年和各季节的海冰密集度,并与SSMRSSM/I遥感海冰密集度数据进行比较.结果表明两种方法的海冰空间分布范围和极大海冰密集区一致,因此提供了监测海冰的一种新方法.
Sea ice concentration is one of the most important parameters to describe sea ice.Seismic ice field data collection is limited by the observation environment and observation range and can not be used for the research of sea ice concentration in a wide range. However, the altitude measurement satellite has all-weather, , Wide range, high resolution and long time observation can make up for the shortcomings of on-site observation methods.This paper classifies the waveform of echo waveform by using the relationship between echo waveform of the satellite radar and reflection characteristics of the reflection surface, and puts forward An algorithm for determining the intensity of Antarctic sea ice using the satellite radar echo waveform is presented.Using the Prydz Bay in the Antarctic as an experimental area, the sea ice is determined by ERS-1 / GM echo waveforms in one and one seasons Intensity and compared with SSMRSSM / I remote sensing sea ice concentration data.The results show that the spatial distribution of sea ice in the two methods is consistent with that of the extremely large sea ice, thus providing a new method of monitoring sea ice.