2005 NOAA Lidar: Oahu & Maui (HI) Point Cloud files with Orthometric Vertical Datum GPS-derived orthometric height via GEOID model using GEOID12B

Below are links to the files that make up the 2005 NOAA Lidar: Oahu & Maui (HI) dataset in an orthometric vertical datum GPS-derived orthometric height via GEOID model 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 data are all in geographic coordinates using the North American Datum of 1983 (NAD83). The version of the NAD83 datum may vary slightly, but all are one of the updated realizations such as the High Accuracy Reference Network (HARN), Continuously Operating Reference System of 1996 (CORS96), or National Spatial Reference System of 2007 (NSRS2007), and not the original NAD83(86). This may not be evident in the metadata. Vertical units are meters and all have been converted from NAD83 ellipsoid heights to orthometric GPS-derived orthometric height via GEOID model heights using GEOID12B.

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/lidar1_z/geoid12b/data/24/
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 24). 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 urllist24.txt. Several posts on the GeoZone blog provide help with downloading, including:

The total size to download all the files is 420M.

If you need FTP access instead of HTTPS, use ftp://ftp.coast.noaa.gov/pub/DigitalCoast/lidar1_z/geoid12b/data/24

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)
                2005_HI_index.gpkg (GeoPackage)
Metadata: 2005_HI_metadata.xml
Metadata: 2005_HI_metadata.html
XYZ range table: 2005_HI_minmax.csv
README: 0README.txt (contains similar information to above)
URL List: urllist24.txt is a list of all the URLs for batch downloading.

Supplemental Info

supplemental/hi2004_noaa_oahu_maui_m24.kmz
supplemental/index.html

Point Clouds

20050316_maui12_ld_p14.laz
20050220_oahu19_ld_p14.laz
20050220_oahu39_ld_p14.laz
20050316_maui11_ld_p14.laz
20050220_oahu38_ld_p14.laz
20050220_oahu18_ld_p14.laz
20050220_oahu17_ld_p14.laz
20050316_maui10_ld_p14.laz
20050220_oahu37_ld_p14.laz
20050220_oahu16_ld_p14.laz
20050220_oahu36_ld_p14.laz
20050220_oahu35_ld_p14.laz
20050316_maui09_ld_p14.laz
20050220_oahu15_ld_p14.laz
20050220_oahu34_ld_p14.laz
20050316_maui08_ld_p14.laz
20050220_oahu14_ld_p14.laz
20050316_maui07_ld_p14.laz
20050220_oahu33_ld_p14.laz
20050316_maui06_ld_p14.laz
20050220_oahu13_ld_p14.laz
20050220_oahu32_ld_p14.laz
20050220_oahu12_ld_p14.laz
20050220_oahu31_ld_p14.laz
20050220_oahu11_ld_p14.laz
20050220_oahu30_ld_p14.laz
20050316_maui05_ld_p14.laz
20050220_oahu29_ld_p14.laz
20050220_oahu10_ld_p14.laz
20050316_maui04_ld_p14.laz
20050220_oahu28_ld_p14.laz
20050316_maui03_ld_p14.laz
20050220_oahu09_ld_p14.laz
20050220_oahu27_ld_p14.laz
20050220_oahu26_ld_p14.laz
20050220_oahu08_ld_p14.laz
20050316_maui02_ld_p14.laz
20050220_oahu25_ld_p14.laz
20050220_oahu07_ld_p14.laz
20050316_maui01_ld_p14.laz
20050220_oahu24_ld_p14.laz
20050220_oahu47_ld_p14.laz
20050220_oahu46_ld_p14.laz
20050220_oahu06_ld_p14.laz
20050220_oahu23_ld_p14.laz
20050220_oahu45_ld_p14.laz
20050220_oahu05_ld_p14.laz
20050220_oahu44_ld_p14.laz
20050220_oahu04_ld_p14.laz
20050220_oahu43_ld_p14.laz
20050220_oahu22_ld_p14.laz
20050220_oahu42_ld_p14.laz
20050220_oahu03_ld_p14.laz
20050220_oahu21_ld_p14.laz
20050220_oahu41_ld_p14.laz
20050220_oahu02_ld_p14.laz
20050220_oahu20_ld_p14.laz
20050220_oahu40_ld_p14.laz
20050220_oahu01_ld_p14.laz

This page is owned by the NOAA Office for Coastal Management and was created by an automated script on Wed Feb 3 16:08:53 EST 2021