THE LATE CAPTAIN McCAW'S CONTRIBUTIONS TO THE E.S.R.

Abstract

The volume of this Review which has just been completed commenced with a memoir of the first Editor, the late Captain G. T. McCaw, C.M.G., O.B.E., M.A., who died in October 1942, and, in view of his great services to the Review and to the survey world in general, it is thought to be not in-appropriate that this, the first number of a new volume, should contain a list of his contributions to the Review. The power and versatility that they display are remarkable.     

GPS控制网的优化设计

随着GPS网的广泛应用，人们歼始着手研究GPS网的优化设计问题。本文把GPS网与常现网的优化设计相比较，分析了它们的异同点，探讨了GPS网的零级设计和一级设计的方法．并对一级设计中所用到的三维台劳一卡门结构的准则矩阵进行了推证。     

荆江防洪工程数据库的研建与防洪应用

荆江河道弯曲,水流宣泄不畅,洪灾频繁,是长江中游重点防洪区。本文概略介绍了荆江防洪工程,研究、建立了荆江防洪工程数据库,并作了某些防洪应用研究。     

Signal and noise in S.L.R. data

The problem of judging on model deficiency in S.L.R. data treatment is considered. In particular the correlation analysis of residuals of adjusted orbits is used to show the presence of unmodelled signals. This analysis seems suitable at least for a proper preprocessing of S.L.R. data, in the sense of being an efficient procedure of outliers rejection.     

COMMENTS ON PROF. SALISHCHEV'S PAPER

The results of measurements of sea surface temperature (SST) in a large hydrological test area are discussed. Data recorded by the AVHRR radiometer, an instrument for measuring surface temperature towed by a scientific research ship, an STD sounder, and two LOBAN-TM drifting buoys are used. Data measurement and processing methods are described. Maps of the spatial distributions of sea surface temperature are compared. Accuracy in retrieving the sea surface temperature field from satellite data is evaluated.     

基于Corel R.A.V.E.的动态地图编制

以蕲春县1990年至2002年人口变化动态地图的制作过程为例,详细介绍了使用Corel R.A.V.E.制作动态地图的主要方法。     

成都市GPS改扩建网的数据处理与精度分析

本文首先简要介绍了成都市平面坐标系统,分析了原坐标系统的局限性,其次详细介绍了应用GPS技术建立成都市C级控制网的工程实例,重点对改扩建的控制网布网方案、数据处理方法及精度进行了分析和研究,并对C级GPS网成果与原城市控制网成果进行了兼容性检验。     

武汉市城市基本高程控制网的复测与特点

论述了武汉市二等水准网复测项目的主要特点，详细介绍了已知点稳定性分析、实施、跨河水准、整网平差等情况，为城市等级水准网的布设与实施提供了一个实例。     

光电测距支点与控制网的平均边长

本文主要就光电测距支点的范围及由此引起的三角网的平均边长问题进行了讨论，提出了一些看法。     

COMMENTS ON K.A. SALISHCHEV'S PAPER

A method is described for the mapping of exogenous geomorphologic hazards (mass movements, frost heaving, suffosion, melting of permafrost) in the Lake Baykal area using space imagery. Black-and-white photography from the Salyut-4 space station (1:2,100,000 scale) was used as a base for the preparation of a series of maps depicting natural conditions (morphotectonic and physical geographic regions, faults, climate, dominant exogenous processes) used as a base for compiling a map of planning and engineering measures for the prevention and amelioration of geomorphologic hazards. Translated from: Geografiya i prirodnyye resursy, 1985, No. 2, pp. 59-67.     

测绘运筹学在GIS工程建设中的应用

简要介绍了测绘运筹学及其性质 ;系统科学体系结构 ;系统特征 ;系统方法与原理。在此基础上讨论了测绘运筹学与 GIS的关系及在 GIS工程建设中的应用 ,包括可行性研究阶段的应用 ;要求分析阶段的应用 ;设计阶段的应用 ;运行维护阶段的应用 ;系统实现阶段的应用和决策应用等。