详细信息
珠江口二类水体MODIS数据大气校正 被引量:2
Atmospheric correction of MODIS data over case Π waters at the Pearl River Estuary
文献类型:期刊文献
中文题名:珠江口二类水体MODIS数据大气校正
英文题名:Atmospheric correction of MODIS data over case Π waters at the Pearl River Estuary
作者:刘大召[1]
机构:[1]广东海洋大学信息学院,广东湛江524088
年份:2010
卷号:34
期号:8
起止页码:86
中文期刊名:海洋科学
外文期刊名:Marine Sciences
收录:CSTPCD、、CSCD2011_2012、北大核心2008、北大核心、CSCD
基金:国家海洋局公益性行业科研专项(200805028);广东海洋大学自然科学基金(1012151)
语种:中文
中文关键词:MODIS;珠江口;大气校正
外文关键词:MODIS; the Pearl River Estuary; atmospheric correction
中文摘要:以珠江口海域为主要研究区域,针对近岸二类水体近红外波段离水辐射为0的假设不再成立,导致MODIS标准大气校正算法中用于大气校正的两个近红外波段的气溶胶散射值的高估,引起可见光波段离水辐射值较实际值偏小,甚至出现负值的问题,研究了748,869 nm波段的气溶胶散射及离水辐射之间的关系,提出了珠江口二类水体MODIS数据的大气校正算法。通过与MODIS数据标准大气校正算法、基于短波波段的二类水体MODIS数据大气校正算法相比,表明珠江口二类水体MODIS数据的大气校正算法具有一定的优势。
外文摘要:The hypothesis that the near infrared band water-leaving radiance is zero is no longer valid over case П waters, leading to the MODIS standard atmospheric correction algorithm failure. The Pearl River Estuary is the main study area in this paper; the relationship between the aerosol scattering and water leaving-radiance at 748 and 869 nm bands were studied; and a regional atmospheric correction algorithm for MODIS over case 17 waters in the Pearl River Estuary was proposed. Compared with the standard atmospheric correction algorithm and atmospheric correction algorithm for case П waters based on the short-wave band, the new one had some advantages.
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