近、现代黄河三角洲统计分布特征浅析

1855年以来建造的近、现代黄河三角洲是我国三大河口三角洲之一,由7个亚三角洲堆积体组成。在缺少实验室数据的情况下,尝试利用陆地卫星TM遥感数据,进行比值和主成份分析,增强含铁氧化物光谱信息同时分析了7个亚三角洲堆积体的频率分布直方图和统计特征值(均值、标准离差)。在此基础上,简要论述了近、现代黄河三角洲地表环境的差异,为利用遥感技术解决地学问题提供了一条有益的思路.

A PRELIMINARY DISCUSSION ON STATISTICAL DISTRIBUTION CHARACTISTICS OF THE NEOTERIC AND MODERN YELLOW RIVER DELTA

Being one of the three biggest bayou deltas of China, the neoteric and modern Yellow River Delta, raised since 1855, is composed of seven sub-deltas. Due to the lack of laboratory data, this paper has to use Landsat TM remotely-sensed data to analyse band ratios and principal components. The authors enhanced the spectral information of ferruginous oxides and analysed frequency histograms and statistical values of the second principal component of seven sub-deltas. On such a basis, the surface environmental differences of the neoteric and modern Yellow River Delta are discussed tentatively and briefly, which provides a useful train of thought for applying the remote sensing technology to solving geographical problems.