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<div>Tile cache of Impervious Surface data for Massachusetts from 2005.<br /></div><div><br /></div><div>The Impervious Surface raster layer represents impervious
surfaces covering the Commonwealth of Massachusetts. The
surfaces were extracted using semi-automated techniques by
Sanborn Map Company from 50-cm Vexcel UltraCam near infrared
orthoimagery that was acquired in April 2005 as part of the <a href='https://www.mass.gov/info-details/massgis-data-2005-aerial-imagery' rel='nofollow ugc' target='_blank'>Color Ortho Imagery</a> project. The pixel
size for the impervious surface data is 1-meter.</div><div><br /></div><div><p><b>Impervious surfaces</b> are defined as:</p>
<ul><li>All constructed surfaces such as <b>buildings</b>,
<b>roads</b>, <b>parking lots</b>, <b>brick</b>,
<b>asphalt</b>, <b>concrete</b>.</li><li>Also included are areas of <b>man-made compacted soil</b>
or material such as <b>mining</b> or <b>unpaved

parking lots (no vegetation present)</b></li></ul>
<b>Non-impervious surfaces</b> can be defined as:
<ul><li><b>All vegetated areas</b>, natural and man-made</li><li><b>Water bodies</b> and <b>wetland area</b></li><li><b>Ski runs</b></li><li><b>Natural occurring barren areas</b> (i.e. <b>rocky

shores</b>, <b>sand</b>, <b>bare soil</b>)</li></ul><div>See the <a href='https://www.mass.gov/info-details/massgis-data-impervious-surface-2005' rel='nofollow ugc' target='_blank'>full metadata</a>.<br /></div></div>
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{'title': 'Impervious Surface (2005)', 'author': 'MassGIS', 'comments': '', 'subject': 'Impervious Surface for Massachusetts for 2005', 'category': '', 'keywords': 'Impervious Surface, 2005, MassGIS, Massachusetts', 'credits': 'MassGIS', 'Title': '', 'Author': '', 'Comments': '', 'Subject': '', 'Category': '', 'AntialiasingMode': 'Best', 'TextAntialiasingMode': 'Force', 'Keywords': ''}
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