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&laquo; <a href="http://www.naturalearthdata.com/downloads/50m-physical-vectors/">1:50m Physical Vectors</a>&nbsp;
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<div class="post" id="post-1506">
<h2>Rivers, Lake Centerlines</h2>
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<div style="float: left; width: 170px;"><img class="downloadPromoImage" title="rivers_lake_centerlines_thumb" src="http://www.naturalearthdata.com/wp-content/uploads/2009/09/rivers_lake_centerlines_thumb.gif" alt="rivers_lake_centerlines_thumb" width="150" height="100" align="left" /></div>
<div style="float: left; width: 410px;"><em>Single-line drainages including optional lake centerlines.</em></p>
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<a class="download-link" rel="nofollow" title="Downloaded 4416 times (Shapefile, geoDB, or TIFF format)" onclick="if (window.urchinTracker) urchinTracker ('http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/50m/physical/ne_50m_rivers_lake_centerlines.zip');" href="http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/50m/physical/ne_50m_rivers_lake_centerlines.zip" onclick="javascript:_gaq.push(['_trackEvent','download','http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/50m/physical/ne_50m_rivers_lake_centerlines.zip']);">Download rivers and lake centerlines</a> <span class="download-link-span">(381.02 KB) version 2.0.0</span>
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<a class="download-link" rel="nofollow" title="Downloaded 2223 times (Shapefile, geoDB, or TIFF format)" onclick="if (window.urchinTracker) urchinTracker ('http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/50m/physical/ne_50m_rivers_lake_centerlines_scale_rank.zip');" href="http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/50m/physical/ne_50m_rivers_lake_centerlines_scale_rank.zip" onclick="javascript:_gaq.push(['_trackEvent','download','http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/50m/physical/ne_50m_rivers_lake_centerlines_scale_rank.zip']);">Download with scale ranks + tapering</a> <span class="download-link-span">(415.3 KB) version 2.0.0</span>
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<strong>About</strong></p>
<p>Generalized from the 10 million rivers. The 50 million rivers primarily derive from World Data Bank 2. Double line rivers in WDB2 were digitized to created single line drainages. All rivers received manual smoothing and position adjustments to fit shaded relief generated from SRTM Plus elevation data, which is more recent and (presumably) more accurate.</p>
<p style="padding-top: 7px; padding-right: 0px; padding-bottom: 7px; padding-left: 0px; margin: 0px;">Lake centerlines obtained by manually drawing connecting segments in reservoirs. When available, Admin 0 and 1 political boundaries in reservoirs serve as the lake centerlines.</p>
<p style="padding-top: 7px; padding-right: 0px; padding-bottom: 7px; padding-left: 0px; margin: 0px;">Ranked by relative importance. Includes name and line width attributes for creating tapered drainages.</p>
<p><em>(below) Congo River basin, Africa.</em></p>
<p><img class="alignnone size-full wp-image-725" title="rivers_tapered_drains_wide" src="http://www.naturalearthdata.com/wp-content/uploads/2009/09/rivers_tapered_drains_wide.gif" alt="rivers_tapered_drains_wide" width="580" height="150" /></p>
<p><strong>Includes scale ranks (large rivers, small rivers): </strong></p>
<p><em>(below) Southern United States.</em></p>
<p><img class="alignnone size-full wp-image-726" title="river_ranks_wide" src="http://www.naturalearthdata.com/wp-content/uploads/2009/09/river_ranks_wide.gif" alt="river_ranks_wide" width="580" height="150" /></p>
<p><strong>Avoid data dump overload: </strong></p>
<p><em>(below) Quebec, Canada in Natural Earth compared to Digital Chart of the World.</em></p>
<p><img class="alignnone size-full wp-image-727" title="rivers_scale_ranks_compare_with_dcw_wide" src="http://www.naturalearthdata.com/wp-content/uploads/2009/09/rivers_scale_ranks_compare_with_dcw_wide.gif" alt="rivers_scale_ranks_compare_with_dcw_wide" width="580" height="150" /></p>
<p><strong>Issues</strong></p>
<p>Does not include intermittent rivers (eg: large seasonal rivers in Australia draining to Lake Eyre playas). Rivers in northeastern Russia and parts of the Amazon basin have suspect alignments.</p>
<p><strong>Version History</strong></p>
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<p><a href="https://github.com/nvkelso/natural-earth-vector/blob/master/CHANGELOG" onclick="javascript:_gaq.push(['_trackEvent','outbound-article','http://github.com/nvkelso/natural-earth-vector/blob/master/CHANGELOG']);">The master changelog is available on Github »</a>
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