| Title: LiDAR Derived 2-foot Contours | |
| Time Period of Content: 2011 | Publication Date: 5/31/2013 |
| Originator: Earth Systems Research Center, University of New Hampshire | |
| Abstract: This data set represents smoothed, 2-foot bare earth contours (isolines) derived from the Coastal New Hampshire LiDAR collection (2011). Prior to contour generation, the regional LiDAR raster was "smoothed" using the ArcGIS "Focal Statistics" tool using a 3x3 circular neighborhood. The contours were generated using the ArcGIS "Contour" tool while applying a Z factor of 3.2802 to convert the elevation values from meters to feet. Once generated, contours less than 1 meter in length were deleted. The contours were further generalized using the "Smooth" function from within ArcMap with a maximum allowable offset of 0.1 meter. | |
| Theme Keywords: Elevation, contours, hypsography, LiDAR, coastal, coastalcontours | |
| The contours displayed on this Viewer have been superseded by a statewide contour dataset, which will replace the display version on the Coastal Version shortly. Clickhere for Full Metadata and Data Download of the distributable data. | |