2018 USGS Lidar: North Slope, AK - QL2 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 2018 USGS Lidar: North Slope, AK - QL2 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 can be 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. You may also want to try the uGet program using the list of URLs in file urllist9198.txt. Several posts on the GeoZone blog provide help with downloading, including:

The total size to download all the files is 27G. There are 5651 LAZ files and the summary class table is:

Class NumberClass NamePoints
1Unclassified3458057384
2Ground2342040523
3Low Vegetation28261670
4Medium Vegetation8684619
5High Vegetation1853712
6Building2830120
7Low Point (noise)163071355
9Water389276510
17Bridge Deck364
20Ignored Ground (near breakline)5635912
21Snow52431

Georeferencing Note

You may find the georeferencing on the files refers to generic NAD83 (EPSG code 4269). All files 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/geoid12b/9198.

Meta Info

Tile Index: tileindex.zip (Shapefile)
                2018_USGS_AK_northSlope_QL2_index.gpkg (GeoPackage)
Metadata: 2018_USGS_AK_northSlope_QL2_metadata.xml
Metadata: 2018_USGS_AK_northSlope_QL2_metadata.html
XYZ range table: 2018_USGS_AK_northSlope_QL2_minmax.csv
URL List: urllist9198.txt is a list of all the URLs for batch downloading.

Supplemental Info

supplemental/2019_North_Slope_Borough_Communities_3DEP_LiDAR_Technical_Data_Report.pdf
supplemental/North_Slope_Borough_3DEP_AKSPZ2_Waters_Edge_Breaklines_Metadata.xml
supplemental/extent_AK_nslope_QL2_m9198.kmz
supplemental/index.html

Breakline Files

breaklines/Anaktuvuk_Pass_Waters_Edge_Breaklines.gdb.zip
breaklines/Anaktuvuk_Pass_Waters_Edge_Breaklines.gpkg.zip
breaklines/Atqasuk_Waters_Edge_Breaklines.gdb.zip
breaklines/Atqasuk_Waters_Edge_Breaklines.gpkg.zip
breaklines/Barrow_North_Waters_Edge_Breaklines.gdb.zip
breaklines/Barrow_North_Waters_Edge_Breaklines.gpkg.zip
breaklines/Barrow_South_Waters_Edge_Breaklines.gdb.zip
breaklines/Barrow_South_Waters_Edge_Breaklines.gpkg.zip
breaklines/Deadhorse_Put_23_Waters_Edge_Breaklines.gdb.zip
breaklines/Deadhorse_Put_23_Waters_Edge_Breaklines.gpkg.zip
breaklines/Kaktovic_Waters_Edge_Breaklines.gdb.zip
breaklines/Kaktovic_Waters_Edge_Breaklines.gpkg.zip
breaklines/Nuiqsut_Waters_Edge_Breaklines.gdb.zip
breaklines/Nuiqsut_Waters_Edge_Breaklines.gpkg.zip
breaklines/Point_Hope_Waters_Edge_Breaklines.gdb.zip
breaklines/Point_Hope_Waters_Edge_Breaklines.gpkg.zip
breaklines/Point_Lay_Waters_Edge_Breaklines.gdb.zip
breaklines/Point_Lay_Waters_Edge_Breaklines.gpkg.zip
breaklines/README_breaklines_m9198.txt
breaklines/Wainwright_Waters_Edge_Breaklines.gdb.zip
breaklines/Wainwright_Waters_Edge_Breaklines.gpkg.zip

Point Clouds

Subdirectories

block_12
block_13
block_14
block_5
block_6
block_7
block_8

This page is owned by the NOAA Office for Coastal Management and was created by an automated script on Tue Feb 21 10:30:35 EST 2023.
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