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This dataset combines Landsat reflectance data and LiDAR crown height data in a polygon format. Data represent portions of southeast New Hampshire, USA, including Rockingham County and portions of Belknap, Hillsborough, Merrimack, and Strafford Counties. |
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This dataset combines Landsat reflectance data and LiDAR crown height data in a polygon format. Data represent portions of southeast New Hampshire, USA, including Rockingham County and portions of Belknap, Hillsborough, Merrimack, and Strafford Counties. |
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These data were developed by NH GRANIT using funding from the New Hampshire Space Grant Consortium. |
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This polygon dataset is derived from Landsat reflectance and LiDAR elevation data. The polygon boundaries represent "image objects" that were derived using eCognition image segmentation software. The software groups image pixels into contiguous segments based on spectral reflectance. The attributes for each polygon are then calculated from the LiDAR crown height layer. Attributes include maximum, minimum, and mean elevation above the ground and standard deviation within each polygon. Elevation is in meters. This dataset incorporates Landsat imagery collected in 2018 and 2020. LiDAR data were collected in 2011 and 2012. |
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Users must assume responsibility to determine the appropriate use of these data. Because of the nature of the source imagery (30m pixels), it is not recommended that the data be used at scales greater than 1:60,000. |
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Landsat and LiDAR-Derived Canopy Height Metrics for Central and Southeast New Hampshire |
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["LiDAR, Landsat, elevation","environment","elevation","United States, New England, Northeast, New Hampshire"] |
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en-US |
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