This interface attempts to ease the pain of downloading 30meter resolution elevation data from the shuttle radar topography mission click on yellow tiles to download their corresponding data tiles come as zipped srtmhgt files at 1arcsecond resolution 3601x3601 pixels in a latitudelongitude projection, downloaded from nasa. Below is the elevation map of toronto, canada, which displays range of elevation with different colours. The shuttle radar topography mission was designed to collect threedimensional measurements of the earths surface. Shuttle radar topography mission srtm data products and non published srtm. Canadian digital elevation model, 19452011 this collection is a legacy product that is no longer supported. The data is published for download here, but its sliced into thousands of small files, and i dont see an ftp option for more efficient downloading. The canadian digital elevation model cdem is part of natural resources canada s altimetry system designed to better meet the users needs for elevation data and products.
If you want to download srtm data, those data are available at the us geological surveys eros data center for download. Earn 10 reputation in order to answer this question. An overview of the different versions is given in figure 2 in the srtm user guide jplnasa version 1 srtm nonvoid filled, unedited elevation data us. Laz in cloud when exporting lidar data urls to text from the cart the user can specify whether to include files in laz only, las only or both formats if both types are present in the cart. Dems gis resources library at university of calgary. Please see the linked pdf files for further documentation. Mrlc multi resolution land characteristics for ned and nlcd data in bil format. Toronto, canada elevation map is displayed at different zoom.
An overview of the different versions is given in figure 2 in the srtm user guide. Another way to think of topographic maps is that they are a picture of the threedimensional 3d structure of the surface of. The canadian digital surface model cdsm is part of natural resources canada s altimetry system designed to better meet the users needs for elevation data and products. The dem data are provided in motorola or ieee byte order, which stores the most signi. Shuttle radar topography mission srtm data have been enhanced to fill areas of missing data void filled to provide more complete digital elevation data with a resolution of 1 arcsecond 30 meters and 3 arcseconds 90 meters for global coverage. High resolution digital elevation model hrdem canelevation series the product high resolution digital elevation model hrdem is part of the canelevation series created in support to the national elevation strategy implemented by nrcan.
Enhanced datasets for mountain areas by panorama viewfinders. The canadian digital elevation data is produced by natural resources canada. Usgs hill shade base map service from the national map. The 1 files cover north america canada, usa and mexico. Digital elevation models mcgill library mcgill university. The relative accuracy of canadian digital elevation data of mount carleton was assessed using shuttle radar topographic mission srtm model and profilespoints from geoscience laser altimeter system glas onboard icesat. The dem data on this site are version 3 of the csisrtm data with included improved clipping of shorelines using the srtm water bodies data swbd, and improved interpolation of voids areas using high resolution auxiliary data for us, canada, mexico, europe, australia, new zealand and gtopo30 global topographic data for other areas. The dem data on this site are version 3 of the csisrtm data with included. In these data, the elevations are captured at the top of buildings, trees. I read about the new version of the digital elevation model at 30 meters srtm 30 meters, but i can not find from were i can download it. Free digital elevation model dem and free satellite data.
This data is the trim dem converted to the canadian digital elevation data cded format which is available from the bc geographic data catalogue. Usgs eros archive digital elevation shuttle radar topography. The srtm digital elevation data, produced by nasa originally, is a major. The data extraction tool allows the extraction and download of raster.
Users should be aware that these data are intended for use with a geographic information system gis or other special application software, and are not directly viewable in a browser. Opendem the portal for sharing free digital elevation models and xyz height datasets. As stated on the nasa jpl official page, the next release is planned for later in 2014, and it is expected to include all of south america plus north. The shuttle radar topography mission srtm wikipedia article is a nasa mission conducted in 2000 to obtain elevation data for most of the world. The usgs shaded relief base map service from the national map was created with data from the 3d elevation program 3dep for large and medium scales 1. Click on the srtm30 tile to download the digital elevation map dem from the place you select. But heres a usgs earth explorer download guide to help you get started. The shuttle radar topography mission srtm was flown aboard the space shuttle endeavour february 1122, 2000. Data is available in dem format which is supported by a variety of software including. Free satellite data, satellite imagery, digital elevation models dems, topographic maps and free software links.
The cded dem has been used for many types of studies and projects mostly in canada. 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. The raster files register precisely with the 10m vector data. It includes a digital terrain model dtm, a digital surface model dsm and other derived data. The elevation map of toronto, canada is generated using elevation data from nasas 90m resolution srtm data. Digital elevation model province of british columbia. The solution for le would be a manual download of srtm data and osm data, followed by off line procesding with maperitive. To collect the 3d data, engineers added a 60meterlong 200foot mast, installed additional cband and xband antennas, and improved tracking and navigation devices. Canadian digital elevation data level 1derived from 1. Usgs ascii dem format is not particularly good as a data format because it is ascii. See the section below for a 2014 update srtm shuttle radar topography mission, a joint project between the nima and nasa to produce digital topographic data for 80% of the earths land surface all land areas between 60.
May 24, 2019 the usgs shaded relief base map service from the national map was created with data from the 3d elevation program 3dep for large and medium scales 1. Under the data sets tab, select digital elevation srtm srtm 1arcsecond global. Topographic maps show the location, height, and shape of features like mountains and valleys, rivers, even the craters on volcanoes. This makes the file size several times larger than a well. There are 2 ways that srtm data can be used with pathloss 5. Click on the explore button to download the required letterblock. Any download policies of the respective mirrors apply. Atlas of canada nrcan free data, including boundaries, transportation networks. May 6, 2020 this is a tiled collection of the 3d elevation program 3dep and is one meter resolution.
Usgs and is available for download from the national map seamless data distribution. Try development seed or linfiniti or this cheat sheet for some help on doing nice things with this data using gdal the files linked here are version 4. Canadian digital elevation data mcgill library mcgill. Elevation data used in this image were acquired by the shuttle radar. Public terrain data free of charge fetchsrtm download tool for finding and downloading srtm, ned and nlcd terrain data. Hamilton, ontario, canada western lake ontario tile. The 3dep data holdings serve as the elevation layer of the national map, and provide foundational elevation information for earth. The data can be configured as a dem and used for all profile and background generation or it can be used in conjunction with a bare earth dem such as ned data in gridfloat format as a clutter database. The data consists of an ordered array of ground or reflective surface elevations, recorded in metres, at regularly spaced intervals. Shuttle radar topography mission 1arc second global. The maps also provides idea of topography and contour of toronto, canada. Two versions of the 10 millionscale raster data are offered. Spatial and numeric data services guide to gis data available at the university of. This data is provided in an effort to promote the use of geospatial science and applications for sustainable development and resource conservation in the developing world.
Land topography allows us to make maps of the features of the surface of the earth. Jplnasa version 1 srtm nonvoid filled, unedited elevation data us. An assessment of the srtm topographic products, technical. These files are available for download in both arcinfo ascii format, and as. You can use programs such as 7zip, pkzip or stuffit to decompress the files. This interface attempts to ease the pain of downloading 30meter resolution elevation data from the shuttle radar topography mission click on yellow tiles to download their corresponding data. For best results, patching should not be used as a substitute for downloading.
By early 2004, 3 data for north america, south america, eurasia, africa, australia, and islands was available. I would like to add that the srtm dem is originally 90m 3 arc sec data. We would like to show you a description here but the site wont allow us. Fetchsrtm download tool for finding and downloading srtm, ned and nlcd terrain data. Elevation of toronto,canada elevation map, topography, contour. Each shapefile consist of at least three actual files. Shuttle radar topographic mission srtm digital surface model dsm. The national aeronautics and space administration nasa and the national geospatialintelligence agency nga participated in an international project to acquire radar data which were used to create the first nearglobal set of land elevations. Shuttle radar topography mission data of the united states. Plugin for blender written in python, used to import srtm shuttle radar topography mission data as a mesh. Shuttle radar topography mission srtm data products and non published srtm canada.
There is a new, 30 meters resolution srtm dtm coming out. The difference in elevation, when compared to a bare earth dem is assigned to the. The proxy settings have been set, that allows display of the map, but alternative request are blocked those for srtm data download. Canadian digital surface model, 2000 open government portal. Usgs hill shade base map service from the national map data. The shuttle radar topography mission srtm carried out in february 2000 has provided near global topographic data that has been widely used in many fields of earth sciences. Srtm data, in hgt format, can be downloaded from here, but for some. Each tile comes in geotiff format at 90meter resolution 6000x6000 pixels, from various mirrors ive found on the web. It is the current dataset of choice for digital elevation model dem data since it has a fairly high resolution 1 arcsecond, or around 25 meters, has nearglobal coverage from 56s to 60n, and is in the public domain. This is a commonly used format that can be directly used in arcanything, divagis, and many other programs. The shuttle radar topography mission srtm water body data files are a.405 1636 814 302 50 984 517 1352 1557 1527 1142 524 213 124 1437 360 347 815 723 170 807 484 1430 1621 1471 540 1572 29 1378 534 1305 1468 439 31 780 822 1459 399 1461 9 1337