2013 USACE NAE Topobathy Lidar: Massachusetts Point Cloud files with Orthometric Vertical Datum North American Vertical Datum of 1988 (NAVD88) using GEOID18

Below are links to the files that make up the 2013 USACE NAE Topobathy Lidar: Massachusetts dataset in an orthometric vertical datum North American Vertical Datum of 1988 (NAVD88) 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 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 urllist4933.txt. Several posts on the GeoZone blog provide help with downloading, including:

The total size to download all the files is 4.7G. There are 31 LAZ files and the summary class table is:
Class NumberClass NamePoints
1Unclassified880803935
2Ground199426366
29Bathymetric point64459631

Georeferencing Note

You may find the georeferencing on the files refers to generic NAD83 (EPSG code 4269). All files, with the exception of the few in WGS84, are in a more recent realization of NAD83 such as NAD83(CORS96), NAD83(HARN), NAD83(NSRS2007), or NAD83(2011).

Cloud Access

This data is now in an AWS S3 bucket at s3://noaa-nos-coastal-lidar-pds/laz/geoid18/4933.

Meta Info

Tile Index: tileindex.zip (Shapefile)
                ma2013_usace_nae_massachusetts_index.gpkg (GeoPackage)
Metadata: ma2013_usace_nae_massachusetts_metadata.xml
Metadata: ma2013_usace_nae_massachusetts_metadata.html
XYZ range table: ma2013_usace_nae_massachusetts_minmax.csv
README: 0README.txt (contains similar information to above)
URL List: urllist4933.txt is a list of all the URLs for batch downloading.

Supplemental Info

supplemental/index.html
supplemental/ma2013_usace_nae_massachusetts_m4933.kmz

Point Clouds

20130619_2013_jun_usace_nae_ma_Newbury_84.laz
2013_jun_usace_nae_ma_Menemsha_88.laz
2013_jun_usace_nae_ma_Menemsha_87.laz
2013_jun_usace_nae_ma_Menemsha_86.laz
2013_jun_usace_nae_ma_Marshfield_59.laz
2013_jun_usace_nae_ma_Marshfield_58.laz
2013_jun_usace_nae_ma_Marshfield_57.laz
2013_jun_usace_nae_ma_Cuttyhunk_05.laz
2013_jun_usace_nae_ma_Buttermilk_41070g6a.laz
2013_jun_usace_nae_ma_Buttermilk_41070g5d.laz
2013_jun_usace_nae_ma_Buttermilk_41070f6b.laz
2013_jun_usace_nae_ma_Buttermilk_41070f5c.laz
20130619_2013_jun_usace_nae_ma_Newbury_83.laz
20130619_2013_jun_usace_nae_ma_Newbury_82.laz
20130619_2013_jun_usace_nae_ma_Newbury_81.laz
20130619_2013_jun_usace_nae_ma_Newbury_80.laz
20130619_2013_jun_usace_nae_ma_Newbury_42070g8a.laz
20130619_2013_jun_usace_nae_ma_Newbury_42070g7d.laz
20130619_2013_jun_usace_nae_ma_Newbury_42070g7c.laz
20130619_2013_jun_usace_nae_ma_Newbury_42070f8b.laz
20130619_2013_jun_usace_nae_ma_Newbury_42070f7d.laz
20130619_2013_jun_usace_nae_ma_Newbury_42070f7c.laz
20130619_2013_jun_usace_nae_ma_Newbury_42070f7a.laz
2013_jun_usace_nae_ma_Sandwich_51.laz
2013_jun_usace_nae_ma_Sandwich_50.laz
2013_jun_usace_nae_ma_Sandwich_49.laz
2013_jun_usace_nae_ma_Sandwich_48.laz
2013_jun_usace_nae_ma_Rockport_78.laz
2013_jun_usace_nae_ma_Rockport_77.laz
2013_jun_usace_nae_ma_Nantucket_103.laz
2013_jun_usace_nae_ma_Nantucket_101.laz

This page is owned by the NOAA Office for Coastal Management and was created by an automated script on Mon Dec 20 16:24:36 EST 2021