SRTM DEM accuracy assessment over vegetated areas in Norway

$61.20 plus tax (Refund Policy)

Buy Article:

Abstract:

Results from the Shuttle Radar Topography Mission (SRTM) are presented. The SRTM C-band and X-band digital elevation models (DEMs) are evaluated with regard to elevation accuracies over agricultural fields, forest areas and man-made features in Norway. High-resolution digital maps and satellite images are used as background data. In general, many terrain details can be observed in the SRTM elevation datasets. The elevation accuracy (90% confidence level) of the two SRTM systems is estimated to less than 6.5 m for open agricultural fields and less than 11 m considering all land surface covers. This is better than specifications. Analysis of dense Norwegian forest stands shows that the SRTM system will produce elevation data that are as much as 15 m higher than the ground surface. The SRTM DEM products will therefore partly indicate canopy elevations in forested areas. We also show that SRTM data can be used to update older DEMs obtained from other sources, as well as estimating the volume of rock removed from large man-made gravel pits.

Document Type: Research Article

DOI: http://dx.doi.org/10.1080/01431160600993447

Affiliations: 1: Norwegian Defence Research Establishment (FFI), Land and Air Systems Division, NO-2027 Kjeller, Norway 2: Norwegian Military Geographic Service, NO-0015 Oslo, Norway 3: Norwegian University of Life Sciences, Dept. of Mathematical Sciences and Technology, NO-1432 Ås, Norway 4: Centre for GIS & Earth Observation, NO-4808 Andral, Norway

Publication date: January 1, 2007

More about this publication?
Related content

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more