2011 DNREC Lidar: Bombay Hook 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 2011 DNREC Lidar: Bombay Hook 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/lidar1_z/geoid18/data/1172/
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 1172). 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 urllist1172.txt. Several posts on the GeoZone blog provide help with downloading, including:

The total size to download all the files is 1.4G. There are 100 LAZ files and the summary class table is:
Class NumberClass NamePoints
1Unclassified249206226
2Ground202534708
3Low Vegetation2892372
7Low Point (noise)233772
9Water23894168
12Overlap49394996
2083

If you need FTP access instead of HTTPS, use ftp://ftp.coast.noaa.gov/pub/DigitalCoast/lidar1_z/geoid18/data/1172

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)
                2011_DNREC_BombayHook_index.gpkg (GeoPackage)
Metadata: 2011_DNREC_BombayHook_metadata.xml
Metadata: 2011_DNREC_BombayHook_metadata.html
XYZ range table: 2011_DNREC_BombayHook_minmax.csv
README: 0README.txt (contains similar information to above)
URL List: urllist1172.txt is a list of all the URLs for batch downloading.

Supplemental Info

supplemental/2011_DNREC_Bombay_Hook_National_Wildlife_Refuge_Lidar.kmz
supplemental/FinalProjectReport_BombayHook_07062011.pdf
supplemental/index.html

Point Clouds

20110418_LAS_658_ld_p29.laz
20110418_LAS_752_ld_p29.laz
20110418_LAS_848_ld_p29.laz
20110418_LAS_847_ld_p29.laz
20110418_LAS_543_ld_p29.laz
20110418_LAS_599_ld_p29.laz
20110418_LAS_846_ld_p29.laz
20110418_LAS_828_ld_p29.laz
20110418_LAS_827_ld_p29.laz
20110418_LAS_657_ld_p29.laz
20110418_LAS_598_ld_p29.laz
20110418_LAS_543_1_ld_p29.laz
20110418_LAS_826_ld_p29.laz
20110418_LAS_751_ld_p29.laz
20110418_LAS_734_ld_p29.laz
20110418_LAS_656_ld_p29.laz
20110418_LAS_733_ld_p29.laz
20110418_LAS_825_ld_p29.laz
20110418_LAS_542_ld_p29.laz
20110418_LAS_808_ld_p29.laz
20110418_LAS_597_ld_p29.laz
20110418_LAS_807_ld_p29.laz
20110418_LAS_541_ld_p29.laz
20110418_LAS_596_ld_p29.laz
20110418_LAS_732_ld_p29.laz
20110418_LAS_655_ld_p29.laz
20110418_LAS_582_ld_p29.laz
20110418_LAS_581_ld_p29.laz
20110418_LAS_806_ld_p29.laz
20110418_LAS_715_ld_p29.laz
20110418_LAS_714_ld_p29.laz
20110418_LAS_540_ld_p29.laz
20110418_LAS_654_ld_p29.laz
20110418_LAS_639a_ld_p29.laz
20110418_LAS_639_ld_p29.laz
20110418_LAS_805_ld_p29.laz
20110418_LAS_580_ld_p29.laz
20110418_LAS_790_ld_p29.laz
20110418_LAS_713_ld_p29.laz
20110418_LAS_638_ld_p29.laz
20110418_LAS_789_ld_p29.laz
20110418_LAS_579_ld_p29.laz
20110418_LAS_539_ld_p29.laz
20110418_LAS_637_ld_p29.laz
20110418_LAS_712_ld_p29.laz
20110418_LAS_696a_ld_p29.laz
20110418_LAS_696_ld_p29.laz
20110418_LAS_578_ld_p29.laz
20110418_LAS_695_ld_p29.laz
20110418_LAS_788_ld_p29.laz
20110418_LAS_538_ld_p29.laz
20110418_LAS_526a_ld_p29.laz
20110418_LAS_526_ld_p29.laz
20110418_LAS_636_ld_p29.laz
20110418_LAS_694_ld_p29.laz
20110418_LAS_577_ld_p29.laz
20110418_LAS_787_ld_p29.laz
20110418_LAS_525_ld_p29.laz
20110418_LAS_772_ld_p29.laz
20110418_LAS_635_ld_p29.laz
20110418_LAS_576_ld_p29.laz
20110418_LAS_563_ld_p29.laz
20110418_LAS_562_ld_p29.laz
20110418_LAS_693_ld_p29.laz
20110418_LAS_620a_ld_p29.laz
20110418_LAS_620_ld_p29.laz
20110418_LAS_771_ld_p29.laz
20110418_LAS_677a_ld_p29.laz
20110418_LAS_677_ld_p29.laz
20110418_LAS_524_ld_p29.laz
20110418_LAS_619_ld_p29.laz
20110418_LAS_561_ld_p29.laz
20110418_LAS_676_ld_p29.laz
20110418_LAS_618_ld_p29.laz
20110418_LAS_523_ld_p29.laz
20110418_LAS_560_ld_p29.laz
20110418_LAS_675_ld_p29.laz
20110418_LAS_770_ld_p29.laz
20110418_LAS_769_ld_p29.laz
20110418_LAS_753_ld_p29.laz
20110418_LAS_617_ld_p29.laz
20110418_LAS_559_ld_p29.laz
20110418_LAS_522_ld_p29.laz
20110418_LAS_616_ld_p29.laz
20110418_LAS_521_ld_p29.laz
20110418_LAS_508b_ld_p29.laz
20110418_LAS_508a_ld_p29.laz
20110418_LAS_508_ld_p29.laz
20110418_LAS_674_ld_p29.laz
20110418_LAS_507_ld_p29.laz
20110418_LAS_506_ld_p29.laz
20110418_LAS_505_ld_p29.laz
20110418_LAS_558_ld_p29.laz
20110418_LAS_658a_ld_p29.laz
20110418_LAS_615_ld_p29.laz
20110418_LAS_601_ld_p29.laz
20110418_LAS_600_ld_p29.laz
20110418_LAS_557_ld_p29.laz
20110418_LAS_544a_ld_p29.laz
20110418_LAS_544_ld_p29.laz

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