摘要
本文应用ＴＭ、ＭＳＳ、ＮＯＡＡ等多平台、多波段、多时相遥感信息，并结合地貌、水文地质、岩相、历史考古等地学信息进行综合分析，研究华北平原全新世海侵痕迹信息的特征提取方法。研究中特别注重利用与海侵有着直接成因关系的地下咸水体及水化学特征变化所传递的信息。这些信息涉及到水、热、盐、土、植被等环境因子。通过多种图象处理方法，突出古海岸线两侧环境因子的综合差异，识别和勾绘古岸线。
In this paper,the integrated analysis of multi-spectral,and multi-temporal remote sensing image data(TM,MSS,NOAA/AVHRR)and geoscience data(geomorphological, hydro geological,lithofacies,archaeological) have been carried out to identify paleo-coastal lines since the Holocene Epoch in the eastern part of North-China plain. The emphasis of the study is placed on the utilization of Information reflecting spatial distribution of salt groundwater and changes of water chemical components,which are closely related to paleo sea transgression and are reflected by environmental factors such as water,heat,salt,soil and vegetations.Some image processing methods are used,so as to better reflect the combined landscape features of soil salinization-vegetation-landuse-geomorphy.Further,integrated processing for images concentrating thematic informations has effectively enhanced the differences of landscapes,for two sides of transgression boundary in the Holocene Epoch.Finally,supported by GIS,a variety of thematic maps are digitized.On the basis of spatial registration,an iutegrated dataset is generated and used for synthetical analysis for defining and verifying the paleo-coastal lines.
出处
《地理研究》
CSSCI
CSCD
北大核心
1996年第1期73-81,共9页
Geographical Research
基金
国家自然科学基金
关键词
全新世
海侵
遥感
图象处理
信息提取
Holocene transgression,Remote sensing image processing,Extraction of thematic features
