最新刊期
卷 ， 期 2 ， 1986
- 摘要：This paper deals with using remote sensing to make an overall inventory on the three principal types or low prouucave sous （salinized soils, sandy sous and caicic concretion black soils） in Heaug-Huai-Hai plain, the largest plain in China. The inventory was conducted mainly on the base of the LANDSAT MSS, imageried in the spring and some in other periods after a treaanent ot optical enhancement. The visual interpretation was done in the synthetic analysis methods based on the imayery mechanism combined with the geoscientific regularities, the interpretation results were transformed to a 1:500000 topographic map and the map of low proauctive soiis distributed in Huang-Huai-Hai plain was fairly drawn with the same scale.For the more accurate discrimination of various low productive soils and reduce the blindness and errors in the visual interpretation process, several methods for automatic discrimination and classificaaon were preliminarily found oue, As a result, the problem that in some sectors of Fengqin, Henan province where sandy soils were often confused with the saiinized soils was well solved, the efficiency of automatic classification by computer was improved, the statistical data of low productive soils in three selected sectors were satisfactoryly picked up and a low productive soil distribution map with the pixel as the smallest unit was printed out.
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发布时间：2021-06-10 - 摘要：In the investigation of land use, we can recognize more categories of land use with the nfrared colour air-photos than black-white panchromatic photos, according to the tone and he farming calendar. Meanwhile, we can measure the area of the canal in the field with infrared colour air-photos, depending on the obvious diffevences in the near infrared spectral values between vegetation and water body. Then data are corrected by way of the regression equation establisher by the field samping, thus, much field work can be cut down in this way. Therefore the infrared colour air-photo is suitable for land use surveying in the eastern farming region. Through the analyses of the TM image in Beijing area, it is shown that the geometric resolution and spectral resolution of the TM image is better than that of MSS image. The ability for analysing the land use category in TM image is twice recognizable as much as that in MSS image. The analyses show that the TM image is suitable for the land use survey （scale 1:100000） in the north and west parts of China.
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发布时间：2021-06-10 - 摘要：To measure the soil dielectric Constant at X band by Means of Space-Wave Measurement is introduced in this Paper. It can well simulate the Fieldwork Condition. The Paper sums up the Relationship of the Microwave Reflective Characteristic and dielectric Constant to Soil Moisture: （1） the Reflective Coefficient presents linear Relationship with Soil Moisture. （2） The Soil dielectric Constant likely presents exponential Change with Soil Moisture Increase.
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发布时间：2021-06-10 - 摘要：Currently, aerospace remote sensing cartography is gradually transited to application stage. Thus, the measurement of the accuracy of the cartography appears very important. This paper puts forward the solution of error vector in each detection point of compiled map using correlation analysis based upon large scaled geographical map and plotting a error vector chart. On this account, the measurement of the accuracy of remote sensing cartography n medium and small scale were resolved.
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发布时间：2021-06-10 - 摘要：We have surveyed the field spectral reflectivity of partial typical rock in Gansu by the 101W model field spectradiometer made in China, and we have discussed the spectral reflectance characteristics and the relative differences about igneous rock, sedimentary rock, carbonatite and metamorphic rock in the same bands with Landsat MSS.According to the methods of the coincide spectral plot and the standard deviation, we have discussed the selection of the optimum band for discrimination of aforesaid rocks. We have suggested the separability of distinguishing the rocks among five bands in 0.5-1.1μm wavelengths.
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发布时间：2021-06-10 - 摘要：This article shows the process of map making of urban trees and greenspaces by 1:2000 scale natural colour air photograph and the method to eliminate various errors from the pictures during work. Further more, a series of more than 70000 data about the cover ratio of trees and greenspaces in every 100×100 meter squares within urban area of Beijing were obtained through a density scanner. These figures have been stored in a data base and were used in urban planning, management and urban ecology research.
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发布时间：2021-06-10 - 摘要：The RS-II 4-channel spectrometer is a portable battery operated instrument. Four filter passbands of channel are corresponding to MSS bands. These indepenc’ent channels can be interchangeably fitted with filter sets that match the TM bands, SPOT’s bands and NOAA’s bands. All 4 spectral channel axes are parallel to each other and to an attached optical gunsight. Thus, a single target can be viewed simultaneously by all 4 channels. The output signals either will be read out by a voltmeter or recorded on a data logging requirement.The instrument was designed for measuring the reflectance of vegetation, soil, water and geological body, etc. It provides ground truth data for interpretation of remote sensing.
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发布时间：2021-06-10 - 摘要：A new method to measure suspended sediment content （SSC） in different depth water and a suspended solids concentration determination （SSCD） device specially designed for this purpose are described. Water samples from different depths can be pumped into the ship-carried SSCD device and then their SSC is measured by a spectroradiometer. The optimum spectral bands for SSC remote sensing were proved to be TM3 and MSS5. The study has shown that in this two bands the optimum mathematical models for SSC remote sensing have similar form: LogY = a + bX （where Y = SSC, X = average reflectance within band TM3 or MSS5）. The results of in-situ measurement indicated that the accuracy of the new method was satisfactory. Its average relative error of SSC determination was not more than 11%. Since the new method has advantages such as low cost, high efficiency and SSC real time measurement, to which the conventional hydrological method is incomparable, it is well worth extending it into hydrological, oceanographic and environmental investigation.
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发布时间：2021-06-10 - 摘要：Landsat image cartography is one of current key topics of the cartography in the world. On the basis of summary of map compilation in the past and with high efficiency, practicability and low-cost as the principle in compilation, we compiled false color Landsat image maps of North China Plain, Hainan Island, Ningxia, Liaoning and other regions using optical composite mosaicking technique in recent years. The conventional technology are combined with new ones in compilation. The controlled average distribution process is conducted to distribute the horizontal position errors of bulk processed Landsat data and the tune of the composite image is adjusted to get harmoniousness in color after the mosaic. Good effect has been resulted and the need of composite photos for investigation of regional environment and dynamic changes is satisfactorily met.
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发布时间：2021-06-10 - 摘要：<正> 河南省于1985年组织了以遥感技术手段为主的豫北地区国土资源概查。工作中,我们充分利用了收集到的陆地卫星MSS、RBV和NOAA气象卫星的可见光与热红外图象,彩色红外及黑白航空象片,对比了多时相信息,对照与归纳了大量其它测试手段与常规调查的地球物理、气象、水资源、地球化学等资料与数据,参阅了丰富的历史资料与统计资料,考虑了社会、经济、人文诸要素,从空中、地面到地下全面调查研究了国土资源的时空分布规律。经过一年的工作,初步取得了一批有价值的科研成果。
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发布时间：2021-06-10 - 摘要：<正> 美国戴达拉斯企业公司近年研制成功了一种新的航空遥感仪器,叫做航空专题成象扫描仪（ATM,全名Airborne Thematic Mapper Scanner,型号为AADS-1268,也有人译成“航空专题制图仪”）。这种仪器是在AADS-1260系统（11个波段的多光谱扫描仪）基础上发展起来的。按照美国国家航空和宇宙航行局（NASA）选择的专题制图仪的波段收录数据,该仪器为八十年代的多光谱研究提供了一种高度通用的研究系统。 AADS-1268扫描仪于1981年10月首次在美国西部进行空中试验,1982年3月提交给NASA/Ames在Lockheed ER-2型高空调查飞机上工作。
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发布时间：2021-06-10 - 摘要：<正> 1.杨兴和,陈丙咸,南京大学,一种光滑边界探测方法,2.朱正中,清华大学,用马尔克夫场模型改善遥感图象区域分割的研究,3.范卫红,赵济,北京师范大学,边缘检测方法在遥感图象识别中的应用,4.刘克旭,东北师范大学,应用九通道地物光谱仪对MSS各波段数据中的大气噪声信号的消隐原理与方法,
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发布时间：2021-06-10 - 摘要：<正> 由中国科学院遥感应用研究所主持、王长耀等同志编译、国防工业出版社出版的《空间遥感图象的分析应用》一书,已于1985年底出版发行。 这本书主要由两部份组成。第一部分为“空间遥感主要活动概述”。编译者在这一部分,以很少的篇幅,高度概括地叙述了近二十多年来一些主要国家发射的与航天遥感技术有关的气象卫星系列,“阿波罗”宇宙飞船,地球资源观察卫星系统(包括美国发射的陆地卫星1—4号、海洋卫星、热容量制图卫星、天空实验室,苏联发射的”联盟号”和“礼炮号”卫星系列,法国拟发射的具有较高分辨力的SPOT卫
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发布时间：2021-06-10 - 摘要：<正> 由中国科学院环境科学委员会和天津市环境保护局编辑的《天津-渤海湾地区环境遥感论文集》,已于1985年12月由科学出版社出版。 该文集综合反映了1980—1983年津渤环境遥感试验的主要科研成果。津渤环境遥感试验,是一项以城市环境为中心、以遥感为手段的多学科综合性研究课题,经过广大科技人员的共同努力,取得了丰硕的科研成果,解决或预示了天津城市发展与环境保护中的若干问题,为天津的城市建设、环境保护、
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发布时间：2021-06-10
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