2014 USACE NCMP Topobathy Lidar: California 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 2014 USACE NCMP Topobathy Lidar: California 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 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/lidar4_z/geoid18/data/4912/
This will give you the directory structure starting with geoid18. Modify the --cut-dirs=2 argument to modify the start directory (e.g. --cut-dirs=4 will start at 4912). 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 urllist4912.txt. Several posts on the GeoZone blog provide help with downloading, including:

The total size to download all the files is 17G. There are 117 LAZ files and the summary class table is:
Class NumberClass NamePoints
1Unclassified2658695286
2Ground1480466419
29Bathymetric point39837881

If you need FTP access instead of HTTPS, use ftp://ftp.coast.noaa.gov/pub/DigitalCoast/lidar4_z/geoid18/data/4912

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)
                ca2014_usace_ncmp_ca_index.gpkg (GeoPackage)
Metadata: ca2014_usace_ncmp_ca_metadata.xml
Metadata: ca2014_usace_ncmp_ca_metadata.html
XYZ range table: ca2014_usace_ncmp_ca_minmax.csv
README: 0README.txt (contains similar information to above)
URL List: urllist4912.txt is a list of all the URLs for batch downloading.

Supplemental Info

supplemental/ca2014_usace_ncmp_m4912.kmz
supplemental/index.html

Point Clouds

20140915_ncmp_ca_159.laz
20140830_ncmp_ca_13.laz
20141013_ncmp_ca_37122g4b.laz
20140905_ncmp_ca_40.laz
20140912_ncmp_ca_59.laz
20140911_ncmp_ca_62.laz
20141004_ncmp_ca_32117e1d.laz
20140916_ncmp_ca_185.laz
20140916_ncmp_ca_184.laz
20140830_ncmp_ca_12.laz
20140911_ncmp_ca_61.laz
20140912_ncmp_ca_58.laz
20140905_ncmp_ca_26.laz
20140829_ncmp_ca_21.laz
20140911_ncmp_ca_60.laz
20140916_ncmp_ca_183.laz
20140912_ncmp_ca_57.laz
20140829_ncmp_ca_18.laz
20140915_ncmp_ca_158.laz
20140916_ncmp_ca_182.laz
20140905_ncmp_ca_25.laz
20140908_ncmp_ca_54.laz
20140829_ncmp_ca_16.laz
20140902_ncmp_ca_39.laz
20140915_ncmp_ca_157.laz
20140828_ncmp_ca_15.laz
20140916_ncmp_ca_181.laz
20140915_ncmp_ca_151.laz
20140912_ncmp_ca_56.laz
20140828_ncmp_ca_14.laz
20140916_ncmp_ca_180.laz
20140828_ncmp_ca_11.laz
20140908_ncmp_ca_53.laz
20140902_ncmp_ca_38.laz
20140915_ncmp_ca_150.laz
20140912_ncmp_ca_55.laz
20140828_ncmp_ca_10.laz
20140916_ncmp_ca_179.laz
20140911_ncmp_ca_77.laz
20140908_ncmp_ca_52.laz
20140902_ncmp_ca_37.laz
20140828_ncmp_ca_09.laz
20140911_ncmp_ca_76.laz
20140916_ncmp_ca_178.laz
20140902_ncmp_ca_36.laz
20140911_ncmp_ca_75.laz
20140908_ncmp_ca_51.laz
20140916_ncmp_ca_177.laz
20140828_ncmp_ca_08.laz
20140902_ncmp_ca_35.laz
20140911_ncmp_ca_74.laz
20140916_ncmp_ca_176.laz
20140902_ncmp_ca_34.laz
20140908_ncmp_ca_50.laz
20140902_ncmp_ca_33.laz
20140828_ncmp_ca_07.laz
20140916_ncmp_ca_175.laz
20140915_ncmp_ca_149.laz
20140828_ncmp_ca_06.laz
20140908_ncmp_ca_49.laz
20140916_ncmp_ca_174.laz
20140902_ncmp_ca_32.laz
20140828_ncmp_ca_05.laz
20140828_ncmp_ca_04.laz
20140902_ncmp_ca_31.laz
20140828_ncmp_ca_02.laz
20140911_ncmp_ca_73.laz
20140916_ncmp_ca_173.laz
20140828_ncmp_ca_01.laz
20140915_ncmp_ca_148.laz
20140914_ncmp_ca_169.laz
20140902_ncmp_ca_30.laz
20140916_ncmp_ca_172.laz
20140908_ncmp_ca_48.laz
20140902_ncmp_ca_29.laz
20140911_ncmp_ca_72.laz
20140914_ncmp_ca_168.laz
20140916_ncmp_ca_171.laz
20140908_ncmp_ca_47.laz
20140902_ncmp_ca_28.laz
20140908_ncmp_ca_46.laz
20140911_ncmp_ca_71.laz
20140916_ncmp_ca_170.laz
20140902_ncmp_ca_27.laz
20140914_ncmp_ca_167.laz
20140907_ncmp_ca_45.laz
20140915_ncmp_ca_161.laz
20140831_ncmp_ca_03.laz
20140830_ncmp_ca_20.laz
20140907_ncmp_ca_44.laz
20140911_ncmp_ca_70.laz
20140914_ncmp_ca_166.laz
20140830_ncmp_ca_19.laz
20140830_ncmp_ca_17.laz
20140915_ncmp_ca_160.laz
20140914_ncmp_ca_165.laz
20140911_ncmp_ca_69.laz
20140907_ncmp_ca_43.laz
20140914_ncmp_ca_164.laz
20140911_ncmp_ca_68.laz
20140906_ncmp_ca_24.laz
20140914_ncmp_ca_163.laz
20140911_ncmp_ca_67.laz
20140906_ncmp_ca_23.laz
20140914_ncmp_ca_162.laz
20140911_ncmp_ca_66.laz
20140906_ncmp_ca_22.laz
20140905_ncmp_ca_42.laz
20140914_ncmp_ca_156.laz
20140911_ncmp_ca_65.laz
20140914_ncmp_ca_155.laz
20140911_ncmp_ca_64.laz
20140905_ncmp_ca_41.laz
20140911_ncmp_ca_63.laz
20140914_ncmp_ca_154.laz
20140914_ncmp_ca_153.laz
20140914_ncmp_ca_152.laz

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