2010 USGS Coastal Lidar: Chandeleur Islands (LA) Point Cloud files with Orthometric Vertical Datum NAVD88 using GEOID12A

Below are links to the files that make up the 2010 USGS Coastal Lidar: Chandeleur Islands (LA) dataset in an orthometric vertical datum NAVD88 using GEOID12A. 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 (windows version at http://gnuwin32.sourceforge.net/packages/wget.htm):
wget -np -r -nH -L --cut-dirs=2 https://coast.noaa.gov/htdata/lidar1_z/geoid12a/data/1066/
This will give you the directory structure starting with geoid12a. Modify the --cut-dirs=2 argument to modify the start directory (e.g. --cut-dirs=4 will start at 1066). 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".

The total size to download all the files is 20M.

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
Metadata: 2010_USGS_CHAN_LA_metadata.html
Metadata: 2010_USGS_CHAN_LA_metadata.xml
XYZ range table: 2010_USGS_CHAN_LA_minmax.csv

Supplemental Info


supplemental/index.html
supplemental/2010_USGS_NASA_EAARL_Lidar_Chandeleur_Islands_Louisiana.kmz

Point Cloud Data Files

20100303_be_e318_n3296_16_ld_p32.laz
20100303_be_e318_n3298_16_ld_p32.laz
20100303_be_e318_n3300_16_ld_p32.laz
20100303_be_e318_n3304_16_ld_p32.laz
20100303_be_e318_n3306_16_ld_p32.laz
20100303_be_e318_n3308_16_ld_p32.laz
20100303_be_e320_n3298_16_ld_p32.laz
20100303_be_e320_n3300_16_ld_p32.laz
20100303_be_e320_n3302_16_ld_p32.laz
20100303_be_e320_n3304_16_ld_p32.laz
20100303_be_e320_n3306_16_ld_p32.laz
20100303_be_e320_n3322_16_ld_p32.laz
20100303_be_e322_n3302_16_ld_p32.laz
20100303_be_e322_n3304_16_ld_p32.laz
20100303_be_e322_n3306_16_ld_p32.laz
20100303_be_e322_n3308_16_ld_p32.laz
20100303_be_e322_n3310_16_ld_p32.laz
20100303_be_e322_n3312_16_ld_p32.laz
20100303_be_e322_n3314_16_ld_p32.laz
20100303_be_e322_n3316_16_ld_p32.laz
20100303_be_e322_n3318_16_ld_p32.laz
20100303_be_e322_n3320_16_ld_p32.laz
20100303_be_e322_n3322_16_ld_p32.laz
20100303_be_e324_n3310_16_ld_p32.laz
20100303_be_e324_n3312_16_ld_p32.laz
20100303_be_e324_n3314_16_ld_p32.laz
20100303_be_e324_n3316_16_ld_p32.laz

This page is owned by the NOAA Office for Coastal Management and was created by an automated script on Fri Jul 29 10:57:00 EDT 2016