PROCESSED SRTM DATA

The data distributed here are in ARC GRID, ARC ASCII and Geotiff format, in decimal degrees and datum WGS84. They are derived from the USGS/NASA SRTM data.

CIAT have processed this data to provide seamless continuous topography surfaces. Areas with regions of no data in the original SRTM data have been

filled using interpolation methods described by Reuter et al. (2007).

DISTRIBUTION

Users are prohibited from any commercial, non-free resale, or redistribution without explicit written permission from CIAT. Users should acknowledge CIAT as the source used in the creation of any reports, publications, new data sets, derived products, or services resulting from the use of this data set. CIAT also request reprints of any publications and notification of any redistributing efforts. For commercial access to the data, send requests to Andy Jarvis.

NO WARRANTY OR LIABILITY

CIAT provides these data without any warranty of any kind whatsoever, either express or implied, including warranties of merchantability and fitness for a particular purpose. CIAT shall not be liable for incidental, consequential, or special damages arising out of the use of any data.

ACKNOWLEDGMENT AND CITATION

We kindly ask any users to cite this data in any published material produced using this data, and if possible link web pages to the CIAT-CSI SRTM website ( http://srtm.csi.cgiar.org).

Citations should be made as follows: Jarvis A., H.I. Reuter, A. Nelson, E. Guevara, 2008, Hole-filled seamless SRTM data V4, International Centre for Tropical Agriculture (CIAT), available from

http://srtm.csi.cgiar.org.

REFERENCES

Reuter H.I, A. Nelson, A. Jarvis, 2007, An evaluation of void filling interpolation methods for SRTM data, International Journal of Geographic Information Science, 21:9, 983-1008.

USGS ftp server ( ftp://e0srp01u.ecs.nasa.gov/srtm/) in 2003,

today available under: http://earthexplorer.usgs.gov/

LEGATO