最新刊期
卷 ， 期 4 ， 1991
- 摘要：Black/white aerial photographs with visible light （1:35000） are used as main information source to fulfil aerial remote sensing survey on scale of 1:50000 in our project. Distribution of burnt rock and ignition boundary of coal seams in Xin-ming district （covered an area of 1300 km2 in shen-fu coalfied） had been indentified （trapped）. Author of this paper given an introduction to the methodology and results of burnt coal area investigation by means of remote sensing. Target of the investigation is an extinct-burnt area. The first task of the study started with basic geological characteristics investigation is to divide macro-lithotype of burnt rocks, determine its forming epoch and make approach to the mechanism of its genesis. The second task of the study is to establish preliminary interpreting indices by means of studying image features of burnt rock and ignition boundary, which is carried out in a known area selected in the light of existed data. The third task of the study is to complete the remote sensing investigation for burnt coal boundary all over the district, to replenish, molify, and perfect the original interpreting indices. During the investigation, interpretation was combined with survey; remote sensing was combined with conventional methods. Finally, the ignition boundaries of coal seams are trapped, the accuracy requirements are fulfilled through borehole examination.
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发布时间：2021-06-10 - 摘要：To combine the geological features shown in satellite image with other data, the author points out that the formation and evolution of Manas Lake were controlled by geological structures and climatic change, and influenced by human activities. The ancient lake basin was formed in the middle Pleistocene Kaketaibusuang ice age and began to sink in the late Pleistocene. In the Honocene it further faded and broken up, then perished.
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发布时间：2021-06-10 - 摘要：A simple model estimated daily total value of ET from one time of day measurement has been introduced in this paper.The model is made by two formulas, first is the aerodynamic resistance-energy balance model for estimating instantaneous values of E, second is a formula to assessment the daily total value of ET from one time of day measurements of net radiation, soil heat flux, air temperature, wind speed, crop canopy temperature, the data of latitute anl solar declination.
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发布时间：2021-06-10 - 摘要：Based on the data of the ground temperature of meteorological station at 20:00 （Beijing time） November 5 and 6 1988 before the Lancang M7.6 earthquake at 21:00 November 6 the satellite thermal infrared digital image and satellite picture almost at the same time, this paper analyzed the relations between thermal infrared images and tectonics, lithology, landform as well as heat raliation characteristic of normal background of meteorological phenomena etc.; expounded the differences and relations of temperature-increased anomaly of seismic precursors with normal state; summed up the method and experience for seizing impending precursors using the time-space dynamic variation of thermal infrared images.
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发布时间：2021-06-10 - 摘要：Analysis of image information content is the basis of image treatment. The image information content of three areas of different vegefation cover types namely multi-forest region （more than 40% of forest cover）, hilly region of average forest land distribution （about 10-30% of forest cover）, and hilly and plain region mainly with farmland was studied, the image of the same region in winter and summer were analyzed. On the basis of image information content analysis, methods of treatment of different images were studied, and their practicality was analyzed and explored as well.The analysis of information feature shows the general law that the information content of infrared band is higher than that of visible light band, in which the maximum of information content is band TM5, and the minimum, band TM2, Meanwhile, in lifferent conditions, the statistical feature value of correlation between bands, mean value and standard deviation was analyzed, thus making image treatment establish on the basis of the analysis of information content and statistical feature. Accordingly, the enhencement of image, the method of information feature extraction （such as the analysis of principal composition, KT transformation and ratio method） and the combination of bands were researched in a systematic way, and the conditions of their practicality were also explored and evaluated
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发布时间：2021-06-10 - 摘要：In this paper, a high-speed processing system to remote images consisting of the TMS32010 digital signal processors and IBM-PC/XT microcomputer is mainly described. In the system, according to feature of remote images, a software package of high-speed remote image processing is developed with TMS32010 macro-assembler. Through practical test of images of airborne image microwave radiometer, the speed of image processing with TMS32010 language in the system is from 100 to 500 times faster than common microcomputer system with FORTRAN language. In addition, a new smooth algorithm is mentioned. It is better than the median filter in filtering out the Gauss white-noise and protecting the edge of images.
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发布时间：2021-06-10 - 摘要：This paper advances and analyses an algorithm converting Raster to Quadtree. Both of the two data structures have their own advantages and disadvantages and suit different processes and operations for corresponding purposes. Raster is the most common structure for image data; and quadtree is a new data structure which has drawn more and more attention and has been developed very fast in recent years. The paper reviews the developing history of quadtrees, describes the converting algorithm and the base of it in detail. Furthermore, the algorithm is evaluated and analysed.
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发布时间：2021-06-10 - 摘要：Prior to theresearch project, the multi-spectral photographic cameras used in the world have a small format （mostly 6cm ×6cm, so it is called 6MSP）, the 6 MSP could not be used for mapping; the "harmful absorption" of spectral photometry is great so that the image quality is not up to standard; Due to the small format, the processing work is great during flying and later period. This project uses aerial photogrammetric cameras of format 18cm × 18cm and 23 ×23cm which composed multi-spectral camera groups, and the spectral photometry which has no "harmful absorption" is constituted by "cut-off filter and special sensitive film" that enables the format of the multi-spectral aerial photography to increase by 9 times and 14.7 times more than 6MSP, and it allows"one photography-multiple usage", e.g the photographs can be used for mapping and for resources investigation and environment monitoring. As there is no "harmful absorption" so the quality of multi-spectral image is higher, and can be used for visual interpretation and also can be input into compcter in order to do the objects classification and interpretation accurately. 18-23MSP is an efficient aerial remote sensing techniques.
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发布时间：2021-06-10 - 摘要：This paper deals with the waveform analysis for the profile sample of minerals and rocks. within the region of 2.0-2.5 μm. The results show that technique of waveform analysis have applied value for spectrum research in identification of minerals, decision of sericitiza-tion, calcitization and the Relative quantity of altered minerals and rocks.
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发布时间：2021-06-10 - 摘要：The progress in theoretical modeling of microwave remote sensing in recent years is briefly reviewed in this paper. As the models for the objects of remote sensing the theories and numerical approaches of electromagnetic scattering and thermal emission of random discrete scatterers, continuous random media, and randomly rough surface are discussed. The applications in both active and passive remote sensing of the earth terrain, vegetation canopy, soil, snow and ice, atmospheric cloud and rain, sea ice, and sea surface driven by wind, etc. are also introduced. With the future development of the remote sensing technology, further efforts to develop more accurate models and quantitative mathematical physical approaches for remote sensing of the nature, and to develop numerical data analysis and parameter retrieval must be done. Some comments on the research progress in theoretical modeling of remote sensing are discussed, and several interesting and important topics for future research are pointed out.
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发布时间：2021-06-10 - 摘要：The Dictionary of Remote Sensing, that edited in chief by Profes’sor Chen Shupeng, was published by Science Press in August 1990. The dictionary consists of three parts: Fundamantals, Techniques and Applications. There are 1060 pages, 24 pages of colour pictures, 5600 entries and many tables, diagrams and pictures in the dictionary, and an index in five languages is attached. Two hundred scholars were responsible in some way for the dictionary.Editing and publishing processes are recorded in this paper, successful experience in the processes are summarized, too. This paper gives vivid describtions of what the purpose of the dictionary is, how those entries were chosen and meaning defined, and ideas of unification of technical terms. It makes the dictionary much better and more comprehensive in the viewpoint of science systems to adopt new methods of entry arrangement and entry coding, and new techniques of plat making and printing.This paper emphasizes that the dictionary is a result of inflexible dedication of colleages in the fields of remote sensing and a fruit in cooperation with experts both in China and abroad.
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发布时间：2021-06-10
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