2008 USACE NCMP Topobathy Lidar: Lake Michigan (WI) 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 2008 USACE NCMP Topobathy Lidar: Lake Michigan (WI) 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/564/
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 564). 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 urllist564.txt. Several posts on the GeoZone blog provide help with downloading, including:

The total size to download all the files is 988M. There are 56 LAZ files and the summary class table is:
Class NumberClass NamePoints
0Never Classified251928549
11Green Laser returns47561922

If you need FTP access instead of HTTPS, use ftp://ftp.coast.noaa.gov/pub/DigitalCoast/lidar4_z/geoid18/data/564

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)
                2008_USACE_WI_index.gpkg (GeoPackage)
Metadata: 2008_USACE_WI_metadata.xml
Metadata: 2008_USACE_WI_metadata.html
XYZ range table: 2008_USACE_WI_minmax.csv
README: 0README.txt (contains similar information to above)
URL List: urllist564.txt is a list of all the URLs for batch downloading.

Supplemental Info

supplemental/2008_USACE_GreatLakes_TopoBathy_Lidar_Wisconsin_LakeMichigan.kmz
supplemental/index.html

Point Clouds

20081031_2008_NCMP_WI_Michigan_65_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_55_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_45_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_45_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_44_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_44_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_65_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_43_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_55_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_64_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_54_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_43_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_54_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_42_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_53_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_42_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_64_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_41_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_63_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_53_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_41_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_52_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_40_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_40_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_39_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_52_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_51_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_39_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_38_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_38_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_51_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_63_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_50_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_62_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_50_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_49_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_62_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_49_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_61_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_48_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_61_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_60_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_48_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_47_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_60_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_59_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_47_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_46_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_59_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_58_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_46_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_58_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_57_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_57_H_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_56_TL_ld_p10.laz
20081031_2008_NCMP_WI_Michigan_56_H_ld_p10.laz

This page is owned by the NOAA Office for Coastal Management and was created by an automated script on Fri Sep 3 07:32:40 EDT 2021