2016 NOAA NGS Topobathy Lidar: Puerto Rico Point Cloud files with Orthometric Vertical Datum Puerto Rico Vertical Datum of 2002 (PRVD02) using GEOID18

Below are links to the files that make up the 2016 NOAA NGS Topobathy Lidar: Puerto Rico dataset in an orthometric vertical datum Puerto Rico Vertical Datum of 2002 (PRVD02) using GEOID18. This HTML file is here to emulate the access you would have gotten through an ftp site. The files containing geospatial indices, metadata, etc., are listed first, followed by the files. To download in bulk, it is suggested you use a program such as wget (example below). The geospatial index file in shapefile format also has a URL attribute that some GIS programs can use to download files. You can also subset the data, make derived products, and change projection, datum, etc., using the Digital Coast Data Access Viewer (add to cart, the link to bulk download or LAZ fmt will take you here).

The data are all in geographic coordinates using the North American Datum of 1983 (NAD83). The version of the NAD83 datum may vary slightly, but all are one of the updated realizations such as the High Accuracy Reference Network (HARN), Continuously Operating Reference System of 1996 (CORS96), or National Spatial Reference System of 2007 (NSRS2007), and not the original NAD83(86). This may not be evident in the metadata. Vertical units are meters and all have been converted from NAD83 ellipsoid heights to orthometric Puerto Rico Vertical Datum of 2002 (PRVD02) heights using GEOID18.

The files are in LAZ format, a lossless compressed version of the ASPRS LAS format. The compression and decompression is done with the free and open source 'laszip' program available at https://laszip.org. This is not the same as the more general zip format. Many geospatial programs will read LAZ files natively and decompression is often not necessary. There is a list of software with native support on the laszip site.

There are many download managers you can use to get all the data. An example is the uGet program using the list of URLs in file urllist8463.txt. Several posts on the GeoZone blog provide help with downloading, including:

The total size to download all the files is 140.43 GB. There are 3464 LAZ files and the summary class table is:

Class NumberClass NamePoints
0Never Classified1
1Unclassified7593965196
2Ground1409172979
7Low Point (noise)88080874
22Bathy noise252330802
25Water column16380061102
26Bathymetric point1411538002
27Water surface5701846715

Cloud Access

This data is now in an AWS S3 bucket at s3://noaa-nos-coastal-lidar-pds/laz/geoid18/8463.

Meta Info


Tile Index: tileindex.zip
Tile Index: pr2016_ngs_topobathy_lidar_index.gpkg
Metadata: pr2016_ngs_topobathy_lidar_metadata.xml
Metadata: pr2016_ngs_topobathy_lidar_metadata.html
XYZ range table: pr2016_ngs_topobathy_lidar_minmax.csv
URL List: urllist8463.txt

Point Clouds

Subdirectories

Block_E
Block_N
PR_A
PR_AA
PR_BB
PR_CC
PR_DD
PR_EE
PR_HH
PR_II
PR_JJ
PR_Y
PR_Z

This page is owned by the NOAA Office for Coastal Management and was created by an automated script on Tue Dec 6 15:35:41 EST 2022.
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