2016 - 2017 USGS Lidar DEM: Puerto Rico
pr2016_usgs_m8654_metadata
eng
Dataset
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION
EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > CARIBBEAN SEA > PUERTO RICO
VERTICAL LOCATION > LAND SURFACE
LIDAR > Light Detection and Ranging
Airplane > Airplane
DEM
DTM
Leading Edge Geomatics (LEG) collected 3451 square miles in Puerto Rico. The nominal pulse spacing for this project was 1 point every 0.7 meters. Dewberry used proprietary procedures to classify the LAS according to project specifications: 0-Never Classified, 1-Unclassified, 2-Ground, 7-Low Noise, 9-Water, 10-Ignored Ground due to breakline proximity, 17-Bridges, 18-High Noise. Dewberry produced 3D breaklines and combined these with the final lidar data to produce seamless hydro flattened DEMs for the project area. The data was formatted according to the USNG tile naming convention with each tile covering an area of 1,500 meters by 1,500 meters. The total tile count of data tiles is four thousand four hundred forty (4,440) LAS and four thousand three hundred ninety eight (4,398) DEMs. The difference is due to some tiles only containing water points.
USGS only added 4333 DEM tiles to the USGS Rockyftp site, because a number of tiles were delivered in the middle of the island that actually were areas of no collection, only tinning. Those DEM tiles were removed when the data was published.
The NOAA Office for Coastal Management (OCM) downloaded 4333 PR_PuertoRico_2015/ Digital Elevation Model (DEM) files from this USGS site: ftp://rockyftp.cr.usgs.gov/vdelivery/Datasets/Staged/Elevation/OPR/ and processed the data to the Data Access Viewer (DAV) and https.
In addition to these bare earth Digital Elevation Model (DEM) data, the lidar point data that these DEMs were created from, are also available. These data are available for custom download at the link provided in the URL section of this metadata record.
Hydro breaklines are also available. These data are available for download at the link provided in the URL section of this metadata record. Please note that these products have not been reviewed by the NOAA Office for Coastal Management (OCM) and any conclusions drawn from the analysis of this information are not the responsibility of NOAA or OCM.
OCM Partners
OCM Partners
https://www.fisheries.noaa.gov/inport/item/55314
https://www.fisheries.noaa.gov/inport/item/49404
northlimit=18.53;
eastlimit=-65.213032;
southlimit=17.871778;
westlimit=-67.955017;
start=2016-01-26;
end=2016-05-15;
start=2016-12-08;
end=2017-03-16;
None
2017-12