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  • 标题:Derelict and Degraded Land Surveys: An Evaluation of the Cost Effectiveness of Air Survey Methods
  • 本地全文:下载
  • 作者:W.G. COLLINS ; L. GIBSON
  • 期刊名称:ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
  • 印刷版ISSN:2194-9042
  • 电子版ISSN:2194-9050
  • 出版年度:1980
  • 卷号:XXIII Part B7 + B8
  • 页码:204-213
  • 出版社:Copernicus Publications
  • 摘要:The Remote Sensing Unit at Aston University has developedan operational system for identifying , mapping and measuringderelict land for various County Planning Authorities inthe U. K.This paper investigates the comparative usefulness and costsof carrying out regular surveys of derelict and degraded landby i) field methods and ii) air photo methods .The substantial advantages of air survey methods arereviewed , to show that the field survey located only 87% ofthe sites , cost between 4 . 5 and 8 . 5 times as much , and tooknearly 12 times as long as the equivalent air photo basedsurvey .
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