Geological survey earth resources observation systems center. Topographic maps are a signature product of the usgs. As most opentopography users hopefully appreciate, primary support for ot comes from the u. The original raw open data from us geological survey srtm 1arc, nasa. Hgt format contained anomalies, such as spikes or missing elevations. Opentopomap is the largest crowdsourced topographic map project in the world. Bookmark those links for current geospatial data from the u. This data can be downloaded from the usgs earthexplorer site. Geological survey usgs developed a global topographic elevation model designated as gtopo30 at a horizontal resolution of 30 arcseconds for the entire earth. Usgs eros archive digital elevation shuttle radar topography mission srtm 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.
Its constantly getting updated by the largest community of mappers in the world capturing our changing planet. How can i download srtm data of 30 m resolution for research in remote sensing. How to download free usgs topo maps with the national map viewer. The usgs has developed a national inventory of significant topographic changes based on seamless multitemporal elevation data and land cover data. The topo map remains an indispensable tool for everyday use in government, science, industry, land management planning, and recreation. The definitive merged global digital topographic data set.
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. Srtm topography has become the most popular data set distributed by. The shuttle radar topography mission srtm, see farr et al. Usgs eros archive digital elevation shuttle radar topography. Usgs map indices downloadable data collection data. The original srtm shuttle radar topography mission topographic data in the. Usgs eros archive digital elevation srtm coverage maps. The nasa shuttle radar topographic mission has provided digital elevation data dems for over 80% of the globe. It appears that the global 1arcsecond 30m srtm digital elevation model. The download online imagery topo terrain maps command allows the user to download mapping data from numerous builtin and usersupplied sources. It is a substantial improvement over the 3 arcsecond 90 meter srtm data previously available for ireland. With the exception of gnis, each site has an option for toggling on map indices showing an outline of all the maps, though you might need to zoom in to see the outlines.
We will be working with gmted2010 dataset from usgs. Note that all values in this example are for demonstration purposes only. Nasa has released version 2 of the shuttle radar topography mission digital topographic data also known as the finished version. For the us topo maps that you want to download, simply click the download button under the cart tab. Gmted global multiresolution terrain elevation data is a global terrain dataset that is the newer version of gtopo30 dataset. The usgs earth explorer gives a quick and intuitive way to download free aerial and satellite imagery. This srtm v3 product srtm plus is provided by nasa jpl at a resolution of 1 arcsecond approximately 30m. Usgs topo is a tile cache base map service that combines the most current data in the national map tnm, and other publicdomain data, into a multiscale topographic reference map. Users can display the footprint and thumbnail of one or more products, view metadata, directly download the file or add to a cart. The version we will be using is the 1 arcsecond global srtm dataset, an enhanced 30 meter resolution dem that was released last year. Seperti kita ketahui, data srtm dem sangat dibutuhkan untuk membuat peta dasar atau peta topografi. National science foundation, and thus our primary emphasis is on facilitating access to topographic data oriented towards earth science research.
This is the third release in the series providing access to additional nasa srtm version 3. The collection are located under the digital elevation. The 3dem application produces three dimensional terrain scenes and flyby animations from a wide variety of freely available data sources including. If you only need to get individual elevation points, the usgs elevation query web service return the elevation in feet or meters for a specific latitudelongitude wgs 1984 point from the usgs seamless elevation datasets. Video ini berisi tata tacatutorial bagaimana caranya mendownload data srtm dem dari situs usgs. Open the product list by clicking results next to the product count. Learn how easy it is to search and download freely available shuttle radar topographic mission srtm dems, that were collected in february 2000 in a special joint mission onboard sts99, using x. Nasa shuttle radar topography mission srtm version 3.
The national elevation dataset ned and the shuttle radar topography mission srtm data form a unique pair of seamless elevation datasets that can be used to detect and analyze 20th century. Click on the srtm30 tile to download the digital elevation map dem from the place you select. The new data are available for download from the usgs eros data. It piggybacks on the open srtm elevation and openstreetmap osm databases for those who dont know, osm is like the wikipedia of maps. Usgs map indices downloadable data collection metadata updated. The definitive merged global digital topographic data set data. Download srtm 30m digital elevation models for free.
For the us, the best source of dem data is the usgs seamless data distribution system, a webbased data search and download system. Download srtm 30m digital elevation models for free usgs. Overview download data citation information documentation additional information. If you are going to performing analysis on the landsat data, the level 1 geotiff data product is probably the one youre after, which will be the largest file size. Additional mediumscale contours were created by usgs eros from arcsecond data with 50foot intervals, and are visible between 1. This data is currently distributed free of charge by usgs and is available for download from the national map seamless data distribution system, or the usgs ftp site. Downloading different dem datasets using opentopograph. Download all dates and scales of usgs topographic maps both current us topo maps and historical topographic maps free of charge from the following applications.
The announcement was made at the united nations heads of state climate summit in new york. This includes access to worldwide street maps from, as well as seamless usgs topographic maps and high resolution color satellite imagery for the entire united states. The data are available for download via earthdata search, the lp daac data pool and the global data explorer gdex. They were essential for integrating and analyzing placebased information, and were widely used by receationalists.
Data themes included are boundaries, geographic names, transportation, contours, hydrography, land cover, shaded relief, and bathymetry. How do i find, download, or order topographic maps. For the us, this site offers a lot more than just dem data, depending on what part of the us youre looking at. Earthexplorer fgdc metadata srtm 30m global srtm version 3. This is a tiled collection of the 3d elevation program 3dep and is one meter resolution. Learn how easy it is to search and download freely available shuttle radar topographic mission srtm dems 30m 1 arc second dems available. The 3dep data holdings serve as the elevation layer of the national map, and provide foundational elevation information for earth science studies and mapping applications in the united states. The srtm v2 data has about 75m pixels, so it will be good if you are displaying a large area. If srtm v3 data are available, it will be more detailed you will have to download the data to see if it includes your area. August 1, 2018 this data consists of data grids for the entire united states area, including 1 x 2 degree, 1 x 1 degree, 30 x 60 minute, 15 x 15 minute, 7. The nasa shuttle radar topographic mission srtm has provided digital.
Srtm elevation data can be downloaded from the united states geological survey s earthexplorer website. On september 23, 2014, the white house announced that the highestresolution topographic data generated from nasas shuttle radar topography mission srtm in 2000 was to be released globally by late 2015. Here is how to search and download the revelant data from usgs earthexplorer. How to download usgs topo maps for free gis geography. The collections are located under the digital elevation category below the srtm subcategory. Because no single source of topographic information covered the entire land surface, gtopo30 was derived from eight raster and vector sources that included a. After 125year legacy of topographic mapping 18842009, the usgs embarked on an innovative future of integrating historical maps with computergenerated maps from a national. Unless you want topo maps in alaska, they are based on 1. Digital elevation shuttle radar topography mission srtm usgs. National land cover database nlcd data can be downloaded at the mrlc website. Srtm data, as mentioned in a previous post, is available under the terrain data category. This video shows you how to find the usgs topo map for your project.
Large scale contours are updated every quarter, and are created by usgs tnm for the 7. The satellite geodesy research group at scripps institution of oceanography, university of california san diego studies data collected by radar altimetry and synthetic aperture radar and applies it to geophysical problems. The topographic maps and geographical information system gis data provided in the. Query and order satellite images, aerial photographs, and cartographic products through the u. Srtm digital elevation data 30m earth engine data catalog. Srtm did not produce data for the northernmost latitudes or antarctica.
Maps and gis data are available for digital download. The finished grade data has most of these anomalies removed by the usgs. Usgs digital elevation model ascii dem files usgs spatial data transfer standard sdts dem files nasa shuttle radar topography mission srtm files lidar point cloud las files usgs. Currently, the most recent version is published as us topo and stored in digital format on the tnm viewer. The information on this page is being retained for technical and historical reference only. Locate and download or purchase maps including topographic topo maps.