2012 AK DGGS Lidar: Whittier 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 2012 AK DGGS Lidar: Whittier 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 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 urllist2580.txt. Several posts on the GeoZone blog provide help with downloading, including:

The total size to download all the files is 7.4G. There are 330 LAZ files and the summary class table is:
Class NumberClass NamePoints
1Unclassified44
2Ground431124899
3Low Vegetation750167933
4Medium Vegetation725533802
6Building864903
7Low Point (noise)49310696
9Water27857702
10Ignored Ground (near breakline)315287
1473342529
15710436
1629047

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/geoid12b/2580.

Meta Info

Tile Index: tileindex.zip (Shapefile)
                ak2012_whitter_index.gpkg (GeoPackage)
Metadata: ak2012_whitter_metadata.xml
Metadata: ak2012_whitter_metadata.html
XYZ range table: ak2012_whitter_minmax.csv
README: 0README.txt (contains similar information to above)
URL List: urllist2580.txt is a list of all the URLs for batch downloading.

Supplemental Info

supplemental/2012_DGGS_Whittier_Alaska_Lidar.kmz
supplemental/index.html
supplemental/rdf2013_003_delivery_report.pdf
supplemental/rdf2013_003_qc_report.pdf

Breakline Files

breaklines/README_breaklines_m2580.txt
breaklines/ak2012_whittier_m2580.zip
breaklines/index.html

Point Clouds

20121025_whittier_043.laz
20121023_whittier_279.laz
20121023_whittier_254.laz
20121023_whittier_319.laz
20121025_whittier_011.laz
20121024_whittier_037.laz
20121024_whittier_071.laz
20121023_whittier_299.laz
20121024_whittier_070.laz
20121023_whittier_298.laz
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20121024_whittier_031.laz
20121023_whittier_277.laz
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20121023_whittier_285.laz
20121022_whittier_248.laz
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20121024_whittier_038.laz
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20121021_whittier_245.laz
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20121021_whittier_217.laz
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20121021_whittier_183.laz
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20121021_whittier_152.laz
20121021_whittier_216.laz
20121021_whittier_132.laz
20121023_whittier_303.laz
20121022_whittier_223.laz
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20121021_whittier_215.laz
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20121021_whittier_207.laz
20121023_whittier_302.laz
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20121021_whittier_083.laz
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20121021_whittier_246.laz
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20121021_whittier_073.laz
20121021_whittier_085.laz
20121021_whittier_084.laz

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