Application of 4D Technology in Watershed Management

YAN Huimin; LI Bicheng

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Application of 4D Technology in Watershed Management

- Application of 4D Technology in Watershed Management
- Bulletin of Soiland Water Conservation Vol. 18, Issue 3, Pages: 40-43(1999)
- 作者机构：
  
  中国科学院水利部水土保持研究所, 陕西杨陵,712100
- 作者简介：
- 基金信息：
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- Published：1999
- 稿件说明：
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YAN Huimin, LI Bicheng. Application of 4D Technology in Watershed Management[J]. Bulletin of Soiland Water Conservation, 1999, 18(3): 40-43.
DOI：

YAN Huimin, LI Bicheng. Application of 4D Technology in Watershed Management[J]. Bulletin of Soiland Water Conservation, 1999, 18(3): 40-43. DOI：

摘要

介绍了4D技术及其系列产品，研究了4D技术在流域管理中的广阔应用前景。4D被誉为“90年代水平的遥感与地理信息系统集成的技术”

它是当代遥感与GIS技术结合生成的数字化产品基本模式，包括DEM（数字方程模型）、DOQ（数字正射影像）

DRG（数字栅格地图）

DLG/DTI（数字专题图）.4D技术为流域管理提供了高精度、实时性强的数字化产品。

Abstract

4D is described and the wide prospects on soil and water conservation are discussed.4D is called as the integrated technology of RS and GIS at 1990’s level， it is the basic mode of digltalized product. 4D include DEM (digital elevation model)

DOQ (digital orthophotoquad)

DRG (digital raster grapher) and DLG/DTI (digital liner grapher)

Which provide real time and precise digitalized product for watershed management.

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