Support - Landmap DTM
Useful links
GTOP030 - USGS
Topographic Data and Images - NGDC
Digital Elevation Modeling Journal
Papers
Muller, J., et al.(2000) 'The LANDMAP project for the automated creation and validation of multi-resolution orthorectified satellite image products and a 1" DEM of the British Isles from ERS tandem SAR interferometry'.Remote Sensing Society Annual Conference, Leicester University, UK. PDF File (841.38 KB)
Morley, J.G., et al.(2000) 'LANDMAP: Creating a DEM of the British Isles by SAR interferometry'.ISPRS Congress, ISPRS, Amsterdam, The Netherlands.
Presentations
Muller, J., et al.(2002)'Quality assurance of the Landmap DEM and associated Orthorectified Imagery'. Mimas Open Forum, University of Manchester. Powerpoint
Jan-Peter Muller Geomatic Engineering UCL. Talked about the different aspects involved in the QA of the Landmap DTM. Qualitative and Qualitative assessments were produced. The Quantitative assessment were done using six different data sets One of them unique to the Project. No Other DTM in the UK had been so thoroughly examined! GPS campaign was presented, plus the different qualitative assessments results. Many of the results related to the first version of the Landmap DTM. Some were of the next version of the DTM. The speaker invited other academic to join the QA exercise.
Wilson, M. (2002) 'The use of Landmap elevation data in a model of flood inundation'. Mimas Open Forum, University of Manchester. Powerpoint
Matt Wilson, University of Southampton presented his assessment of the suitability of the Landmap elevation data for use in a model of flood inundation, and compare against Ordnance Survey Land-Form PROFILE™. He found that PROFILE™ suffered from artifacts produced from the contour modeling source of the DEM. While the Landmap DTM was better in that respect it presented another set of problems, due to the fact it represent the top of the surfaces. He concluded that LiDAR produced DTM would be the best, but is was not universally available. While SAR produced DTM would be near universally available in the near future.
Galley, E. (2002) 'Progress on UK regional geomorphological visualisation, using Landmap and Digimap'. Mimas Open Forum, University of Manchester. Powerpoint
Emilie Galley, Department of Earth Sciences Cambridge University. The speaker presented her use of the Landmap data for visualisation purposes in geomorphological studies. Related the problem of too much details in the Landmap DTM and her solution for reducing the noise. She was satisfied with the ease of the Landmap DTM download service.
