Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Geomatics & Spatial Information Technology》 2006-05
Add to Favorite Get Latest Update

New DEM Based on Surface of Regional Ellipsoid

CHEN Yue-mei(Department of Surveying and Geoinformatics,Tongji Univ ersity,Shanghai 200092,China)  
This paper proposed the principle and method of el lipsoid-based DEM, which is essentially different from DEM based on projected p lan because it is built based on a new form of geodetic coordinate system on reg ional ellipsoid.The regional ellipsoidal surface is more coincidental with the surface of mean height in the region.As for implementation,in contrast to some applications for GIS in which Grid net on the surface of ellipsoid is replaced by Grid net on the surface of projected plan.DEMis built by the method of Grid net on the surface of regional ellipsoid.
【CateGory Index】: P226.2
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved