2014 AK DOT Lidar: Bradfield to Behms Corridor, AK Point Cloud files with Orthometric Vertical Datum North American Vertical Datum of 1988 (NAVD88) using GEOID12B

Below are links to the files that make up the 2014 AK DOT Lidar: Bradfield to Behms Corridor, AK dataset in an orthometric vertical datum North American Vertical Datum of 1988 (NAVD88) using GEOID12B. 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 http://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.

Example to download entire data set using wget (note: sufficiently new and trusted pre-compiled Windows versions can be hard to find):
wget -np -r -nH -L --cut-dirs=2 https://chs.coast.noaa.gov/htdata/lidar2_z/geoid12b/data/8592/
This will give you the directory structure starting with geoid12b. Modify the --cut-dirs=2 argument to modify the start directory (e.g. --cut-dirs=4 will start at 8592). Wget is a command-line program and the output will be to the directory you run it in. More options and information can be found at http://www.gnu.org/software/wget/manual/wget.html. The other options in the example mean:


If you have problems with wget that look like an authorization or certificate issue, you may need to add the option "--no-check-certificate". Windows users may want to install the Windows Subsystem for Linux to get a current wget.

You can also use the uGet program with the list of URLs in file urllist8592.txt. More information on using uGet is in the Bulk Lidar Download GeoZone blog post.

To download only a subset of the files based on a polygon, see this GeoZone blog post.

The total size to download all the files is 4.4G.

If you need FTP access instead of HTTPS, use ftp://ftp.coast.noaa.gov/pub/DigitalCoast/lidar2_z/geoid12b/data/8592

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).

Meta Info

Tile Index: tileindex.zip (Shapefile)
Metadata: 2014_bradfield_metadata.html
Metadata: 2014_bradfield_metadata.xml
XYZ range table: 2014_bradfield_minmax.csv
README: 0README.txt (contains similar information to above)
URL List: urllist8592.txt is a list of all the URLs for batch downloading.

Supplemental Info


supplemental/Bradfield_to_Behms_Corridor_Quality_Assurance_Report.pdf
supplemental/Bradfield_to_Behms_Tetra_Tech_Report.pdf
supplemental/ak2014_bradfield_m8592.kmz
supplemental/index.html

Point Cloud Data Files

L31025_15900.laz
L31025_15925.laz
L31050_15850.laz
L31050_15875.laz
L31050_15900.laz
L31050_15925.laz
L31050_15950.laz
L31075_15800.laz
L31075_15825.laz
L31075_15850.laz
L31075_15875.laz
L31075_15900.laz
L31075_15925.laz
L31075_15950.laz
L31100_15775.laz
L31100_15800.laz
L31100_15825.laz
L31100_15850.laz
L31100_15875.laz
L31100_15925.laz
L31100_15950.laz
L31125_15750.laz
L31125_15775.laz
L31125_15800.laz
L31125_15825.laz
L31125_15925.laz
L31150_15725.laz
L31150_15750.laz
L31150_15775.laz
L31150_15800.laz
L31175_15650.laz
L31175_15675.laz
L31175_15700.laz
L31175_15725.laz
L31175_15750.laz
L31175_15775.laz
L31200_15625.laz
L31200_15650.laz
L31200_15675.laz
L31200_15700.laz
L31200_15725.laz
L31200_15750.laz
L31225_15600.laz
L31225_15625.laz
L31225_15650.laz
L31225_15675.laz
L31225_15700.laz
L31250_15575.laz
L31250_15600.laz
L31250_15625.laz
L31250_15650.laz
L31275_15500.laz
L31275_15525.laz
L31275_15550.laz
L31275_15575.laz
L31275_15600.laz
L31275_15625.laz
L31300_15475.laz
L31300_15500.laz
L31300_15525.laz
L31300_15550.laz
L31300_15575.laz
L31325_15425.laz
L31325_15450.laz
L31325_15475.laz
L31325_15500.laz
L31325_15525.laz
L31350_15400.laz
L31350_15425.laz
L31350_15450.laz
L31350_15475.laz
L31375_15375.laz
L31375_15400.laz
L31375_15425.laz
L31400_15375.laz
L31400_15400.laz
L31425_15250.laz
L31425_15275.laz
L31425_15300.laz
L31425_15325.laz
L31425_15375.laz
L31425_15400.laz
L31450_15225.laz
L31450_15250.laz
L31450_15275.laz
L31450_15300.laz
L31450_15325.laz
L31450_15350.laz
L31450_15375.laz
L31450_15400.laz
L31475_15175.laz
L31475_15200.laz
L31475_15225.laz
L31475_15250.laz
L31475_15275.laz
L31475_15300.laz
L31475_15325.laz
L31475_15350.laz
L31475_15375.laz
L31475_15400.laz
L31500_15125.laz
L31500_15150.laz
L31500_15175.laz
L31500_15200.laz
L31500_15225.laz
L31500_15250.laz
L31525_15125.laz
L31525_15150.laz
L31525_15175.laz
L31525_15200.laz

This page is owned by the NOAA Office for Coastal Management and was created by an automated script on Thu Oct 8 09:04:49 EDT 2020