DOWNLOAD SRTM30

This process interpolates through the no-data holes, producing a smooth elevational surface where no data was originally found. CIAT also request reprints of any publications and notification of any redistributing efforts. Practical use of SRTM data in the tropics: Automated object-based classification of topography from SRTM data. Two examples at the national level in Peru. This dataset is very detailed along shorelines and contains all small islands.

Uploader:	Mezilkis
Date Added:	21 September 2012
File Size:	68.99 Mb
Operating Systems:	Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X
Downloads:	74036
Price:	Free* [*Free Regsitration Required]

Request here Download interface in Chinese: This data set was srm30 in August 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.

Canadian Digital Elevation Data Level 1derived from 1: Sorry, your blog cannot share posts by email.

Automated object-based classification of topography from SRTM data. The method used is based on the size of the hole, and the landform that surrounds it.

Digital elevation model SRTM30 WMS

srtm300 In cases when a higher resolution auxiliary DEM was available, a point coverage is produced of the elevation values at the center of each cell of the auxiliary DEM within void areas. Practical use of SRTM data in the tropics: This process interpolates through the no-data holes, producing a smooth elevational surface where no data was originally found.

The Amazon basin is srtm330 6, km2 and is dominated by dense forest. Projects in the Amazon Basin.

Meter SRTM Elevation Data Downloader

No-data regions due to insufficient textural detail were especially found in mountainous regions Himalayas and Andes, xrtm30 exampleor desertic regions e. They find an average vertical error of just 5m in interpolated regions when compared with a DEM derived from cartographic maps, though the maximum error stretches to m in a region with approximately m elevation. Users who download LBA data in the five years after data have been archived must contact the investigators who collected the data, per provisions 6 and 7 in the policy.

Download Official download interface multiple 5-degree tiles: When hydrological models are applied to the interpolated DEM and the cartographic DEM, little difference is found in hydrological response in terms sdtm30 overland flow and discharge. There are a total of 3, voids accounting forkm2, and in extreme cases, such as Nepal they constitute 9. All are produced from a seamless dataset to allow easy mosaicing.

The interpolated DEM for the no-data regions is then merged with the original DEM to provide continuous elevational surfaces without no-data regions. This xrtm30 set may be used in studies requiring topographic data or the determination of surface water area and elevation. In addition, a binary Data Mask file is available for download, allowing users to identify the areas within each DEM which has been interpolated.

Module Import SRTM30 DEM / SAGA-GIS Module Library Documentation (v)

A 1 arc second data product was also produced but is not available for all countries. Comparisons with digital elevation models generated zrtm30 cartographic data. Data users should use the data set citation and other applicable references provided in this document to acknowledge use of the data.

The SRTM data is available as 3 arc second approx.

The first processing stage involves importing and merging the 1-degree tiles into continuous elevational surfaces in ArcGRID format. Digital elevation models DEM for the entire globe, covering all of the countries of the world, are available for download on this site.

SAGA-GIS Module Library Documentation (v2.3.0)

For additional information on the SRTM, please see the following srym30 site: The best interpolations methods can be generalised as Kriging or Inverse Distance Weighting interpolation for small and medium-size voids in relatively flat low-lying areas; Spline interpolation for small and medium-sized voids in high altitude and dissected terrain; Triangular Irregular Network or Inverse Distance Weighting interpolation for large voids in very flat areas, and an advanced Spline Method ANUDEM for srtm300 voids in other terrains.

The original SRTM data has been subjected to a number of processing steps to provide seamless and complete elevational surfaces for the globe.

Degree Upper Left coordinates: Meter Geographic Coordinate System: Two examples at the national level in Peru. The SRTM digital elevation data provided on this site has been processed to fill data voids and to facilitate its ease of use by a wide group of potential users.

This data is provided in an effort to promote the use of srtk30 science and applications for sustainable development and resource conservation in the developing world.