This data release contains coastal wetland synthesis products for Massachusetts, developed in collaboration with the Massachusetts Office of Coastal Zone Management. Įlevations surveyed at Black Beach, Falmouth, Massachusetts on 18 March 2016 (text file)Įlevation of marsh units in Massachusetts salt marshes Geological Survey worked in collaboration with members of the Marine Biological Laboratory and Woods Hole Analytics at Black. These new techniques are particularly useful for data collection of coastal systems, which requires high temporal and spatial resolution datasets. Imagery acquired with unmanned aerial systems (UAS) and coupled with structure from motion (SfM) photogrammetry can produce high-resolution topographic and visual reflectance datasets that rival or exceed lidar and orthoimagery. Įlevation point cloud from low-altitude aerial imagery from UAS flights over Black Beach, Falmouth, Massachusetts on 18 March 2017 (LAZ file) An XYZ coordinate shift was applied to each data set in order to register the data sets to an earth-based datum established from surveyed ground control points. Six elevation point cloud files in LAZ format (compressed LAS binary data) are included in this data release: 3 raw point clouds of unclassified and unedited points and 3 modified point clouds that were spatially shifted and edited to remove outliers and spurious elevation values associated with moving water surfaces.
1566 results listed by similarity Elevation point clouds of the north coast of Barter Island, Alaska acquired July 01 2014, September 07 2014, and J(LAZ file)
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