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Global 1,5,10,100-km Topography - EarthEnv
Topography
Topography
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/topography
<script type="application/ld+json"> { "@context" : "http://schema.org", "@type" : "Dataset", "name" : "A suite of global, cross-scale topographic variables for environmental and biodiversity modeling", "description" : "Topographic variation underpins a myriad of patterns and processes in hydrology, climatology, geography and ecology and is key to understanding the variation of life on the planet. We provide a fully standardized and global multivariate product of different terrain features has the potential to support many large-scale research applications. The product is based on the digital elevation model products of global 250 m GMTED2010 and near-global 90 m SRTM4.1dev. We provide the following topographic variables: elevation, slope, aspect, eastness, northness, roughness, terrain roughness index, topographic position index, vector ruggedness measure, profile/tangential curvature, first/second order partial derivative, and 10 geomorphological landform classes. Each variable is provided at different aggregations from 1, 5, 10, 50 to 100 km spatial grains.", "temporalCoverage" : "", "spatialCoverage" : { "@type":"Place", "geo":{ "@type":"GeoShape", "box":"180 -84 180 84" } }, "version" : "1", "identifier" : "doi:10.1038/sdata.2018.40", "license" : "https://creativecommons.org/licenses/by/4.0", "distribution" : { "@type" : "DataDownload", "encodingFormat" : "GeoTIFF", "contentUrl" : "https://earthenv.org/topography" }, "sourceOrganization" : "EarthEnv", "datePublished" : "2018-03-20", "creator": [ { "@type": "Person", "sameAs": "http://orcid.org/0000-0002-8341-2830", "givenName": "Giuseppe", "familyName": "Amatulli", "name": "Giuseppe Amatulli" }, { "@type": "Person", "sameAs": "http://orcid.org/0000-0002-1971-7277", "givenName": "Walter", "familyName": "Jetz", "name": "Walter Jetz" }, { "@type": "Person", "sameAs": "http://orcid.org/0000-0003-0144-2671", "givenName": "Ajay", "familyName": "Ranipeta", "name": "Ajay Ranipeta" }, { "@type": "Organization", "sameAs": "http://earthenv.org/", "name": "EarthEnv" } ], "citation": "Amatulli, G., Domisch, S., Tuanmu, M.-N., Parmentier, B., Ranipeta, A., Malczyk, J., and Jetz, W. (2018) A suite of global, cross-scale topographic variables for environmental and biodiversity modeling. Scientific Data volume 5, Article number: 180040. DOI: doi:10.1038/sdata.2018.40" } </script>

Global 1,5,10,100-km Topography

Topographic variation underpins a myriad of patterns and processes in hydrology, climatology, geography and ecology and is key to understanding the variation of life on the planet. We provide a fully standardized and global multivariate product of different terrain features has the potential to support many large-scale research applications. The product is based on the digital elevation model products of global 250 m GMTED2010 and near-global 90 m SRTM4.1dev. We provide the following topographic variables: elevation, slope, aspect, eastness, northness, roughness, terrain roughness index, topographic position index, vector ruggedness measure, profile/tangential curvature, first/second order partial derivative, and 10 geomorphological landform classes. Each variable is provided at different aggregations from 1, 5, 10, 50 to 100 km spatial grains.

{:.litreference} Amatulli, G., Domisch, S., Tuanmu, M.-N., Parmentier, B., Ranipeta, A., Malczyk, J., and Jetz, W. (2018) A suite of global, cross-scale topographic variables for environmental and biodiversity modeling. Scientific Data volume 5, Article number: 180040. DOI: doi:10.1038/sdata.2018.40.

<iframe class="mapframe_right" src="https://dev-dot-earthenv-dot-map-of-life.appspot.com/topographyv2" name="map" frameborder="0" allowfullscreen="true"></iframe> 
<div class="col-md-6 extra-spacing">
    <h3>Derived topographic continuous variables</h3>
    <form class="form-horizontal">

      <div class="form-group">
        <label for="fdataset">Dataset</label>
        <select id="fdataset" class="form-control">
          <option value="elevation">Elevation</option>
          <option value="slope">Slope</option>
          <option value="aspectcosine">Aspect Cosine</option>
          <option value="aspectsine">Aspect Sine</option>
          <option value="eastness">Aspect Eastness</option>
          <option value="northness">Aspect Northness</option>
          <option value="roughness">Roughness</option>
          <option value="tpi">Topographic Position Index</option>
          <option value="tri">Terrain Ruggedness Index</option>
          <option value="vrm">Vector Ruggedness Measure</option>
          <option value="dx">First order partial derivative (E-W slope)</option>
          <option value="dxx">Second order partial derivative (E-W slope)</option>
          <option value="dy">First order partial derivative (N-S slope)</option>
          <option value="dyy">Second order partial derivative (N-S slope)</option>
          <option value="pcurv">Profile curvature</option>
          <option value="tcurv">Tangential curvature</option>
        </select>       
      </div>

      <div class="form-group">
        <label for="faggr">Aggregation</label>
        <select id="faggr" class="form-control">
          <option value="md">Median</option>
          <option value="mn">Mean</option>
          <option value="mi">Minimum</option>
          <option value="ma">Maximum</option>
          <option value="sd">Standard deviation</option>
        </select>
      </div>

      <div class="form-group">
        <label for="fsrc">Sources</label>
        <select id="fsrc" class="form-control">
          <option value="GMTED">GMTED2010</option>
          <option value="SRTM">SRTM4.1dev</option>
        </select>
      </div>

      <div class="form-group">
        <label for="fres">Resolution</label>
        <select id="fres" class="form-control">
          <option value="1KM">1KM</option>
          <option value="5KM">5KM</option>
          <option value="10KM">10KM</option>
          <option value="50KM">50KM</option>
          <option value="100KM">100KM</option>
        </select>
      </div>

      <button id="fcondownload" class="btn btn-primary extra-spacing">Download</button>

    </form>
  </div>    

<div class="col-md-6 extra-spacing">
    <h3>Derived topographic categorical variables</h3>
    <form class="form-horizontal">

      <div class="form-group">
        <label for="fcatdataset">Dataset</label>
        <select id="fcatdataset" class="form-control">
          <option value="geomflat_{KM}perc_GMTEDmd">Flat geomorphological landform - Percentage</option>
          <option value="geompeak_{KM}perc_GMTEDmd">Peak geomorphological landform - Percentage</option>
          <option value="geomridge_{KM}perc_GMTEDmd">Ridge geomorphological landform - Percentage</option>
          <option value="geomshoulder_{KM}perc_GMTEDmd">Shoulder geomorphological landform - Percentage</option>
          <option value="geomspur_{KM}perc_GMTEDmd">Spur geomorphological landform - Percentage</option>
          <option value="geomfootslope_{KM}perc_GMTEDmd">Slope geomorphological landform - Percentage</option>
          <option value="geomhollow_{KM}perc_GMTEDmd">Hollow geomorphological landform - Percentage</option>
          <option value="geomslope_{KM}perc_GMTEDmd">Footslope geomorphological landform - Percentage</option>
          <option value="geomvalley_{KM}perc_GMTEDmd">Valley geomorphological landform - Percentage</option>
          <option value="geompit_{KM}perc_GMTEDmd">Pit geomorphological landform - Percentage</option>
          <option value="geom_{KM}maj_GMTEDmd">Majority of geomorphological landforms</option>
          <option value="geom_{KM}count_GMTEDmd">Count of geomorphological landforms</option>
          <option value="geom_{KM}sha_GMTEDmd">Shannon index of geomorphological landforms</option>
          <option value="geom_{KM}ent_GMTEDmd">Entropy of geomorphological landforms</option>
          <option value="geom_{KM}uni_GMTEDmd">Uniformity of geomorphological landforms</option>
        </select>       
      </div>

      <div class="form-group">
        <label for="fcatres">Resolution</label>
        <select id="fcatres" class="form-control">
          <option value="1KM">1KM</option>
          <option value="5KM">5KM</option>
          <option value="10KM">10KM</option>
          <option value="50KM">50KM</option>
          <option value="100KM">100KM</option>
        </select>
      </div>

      <button id="fcatdownload" class="btn btn-primary extra-spacing">Download</button>

    </form>
  </div>
<script type="text/javascript"> var base_url = 'https://data.earthenv.org/topography/'; // continuous downloads $('#fcondownload').click(function() { var fdv = $('#fdataset').val(); var frv = $('#fres').val(); var fav = $('#faggr').val(); var fsv = $('#fsrc').val(); var fav2 = (fdv == 'elevation') ? fav : 'md'; var url = base_url + fdv + '_' + frv + fav + '_' + fsv + ((fsv=='SRTM')?'':fav2) + '.tif'; window.open(url); return false; }); // categorical downloads $('#fcatdownload').click(function() { var fdv = $('#fcatdataset').val(); var frv = $('#fcatres').val(); var url = base_url + fdv.replace('{KM}', frv) + '.tif'; window.open(url); return false; }); // hide the SRTM option for some continuous datasets $('#fdataset').change(function() { if ( $(this)[0].selectedIndex > 9 ) { // disable the SRTM option $('#fsrc option:contains("SRTM")').prop('disabled', 'disabled'); // change the value to GMTED $('#fsrc option:first').prop('selected', true); } else { $('#fsrc option:contains("SRTM")').prop('disabled', ''); } }); </script>