2011 DNREC Lidar: Bombay Hook Point Cloud files with 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.
Vertical datum | North American Vertical Datum of 1988 (NAVD88) using GEOID18 in meters |
Horizontal projection/datum | NAD83(2011) / UTM zone 18N |
Informational files are listed first (such as geospatial indices, metadata, and so on), followed by the files. To download in
bulk, it is suggested you use a download manager such as wget, uget, or filezilla for example. 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 will take you here).
The files are in LAZ format, a lossless compressed version of the ASPRS LAS format. The compression and
decompression can be done with the free and open source 'laszip' program available at
https://rapidlasso.de/laszip/
(source at https://github.com/LASzip/LASzip). This is not the same as the more general zip format.
You may also want to try the uGet program using the list of URLs in file urllist_2011_DNREC_BombayHook_m1172.txt.
Several posts on the GeoZone blog provide help with downloading, including:
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://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/1172/index.html/
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 $missionid). 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 https://www.gnu.org/software/wget/manual/wget.html.
The other options in the example mean:
- -np = don't grab the parent directory
- -r = recursive (descend into directories)
- -nH = don't generate host-prefixed directories
- -L = follow relative links only (so you don't download wget just because it's linked here)
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.
The total size to download all the files is 2.2G. There are 100 LAZ files and the summary class table is:
Class Number | Class Name | Points |
1 | Unclassified | 249206226 |
2 | Ground | 202534708 |
3 | Low Vegetation | 2892372 |
7 | Low Point (noise) | 233772 |
9 | Water | 23894168 |
12 | Overlap | 49394996 |
This dataset has 83 points in additional unexpected classes that may be misclassified.
Cloud Access
This data is in an AWS S3 bucket at s3://noaa-nos-coastal-lidar-pds/laz/geoid18/1172.
Meta Information
Tile Index: tileindex_2011_DNREC_BombayHook_m1172.zip (Shapefile)
Tile Index: tileindex_2011_DNREC_BombayHook_m1172.gpkg (Geopackage)
Metadata: metadata_2011_DNREC_BombayHook.xml
Metadata: metadata_2011_DNREC_BombayHookforHumans.html
XYZ range table: minmax_2011_DNREC_BombayHook_m1172.csv
URL List: urllist_2011_DNREC_BombayHook_m1172.txt
Supplemental Info
Files
2011_DNREC_Bombay_Hook_National_Wildlife_Refuge_Lidar.kmz
FinalProjectReport_BombayHook_07062011.pdf
Spatial Temporal Asset Catalog (STAC)
collection.json (See collection in STAC Browser)
noaa_copc_item_collection_m1172.json
Entwine Format
See entwine.io for more information on the Entwine Point Tile format.
EPT JSON file
View Point Data in Potree 3D Viewer
Point Cloud Files
20110418_LAS_505_ld_p29.copc.laz
20110418_LAS_506_ld_p29.copc.laz
20110418_LAS_507_ld_p29.copc.laz
20110418_LAS_508_ld_p29.copc.laz
20110418_LAS_508a_ld_p29.copc.laz
20110418_LAS_508b_ld_p29.copc.laz
20110418_LAS_521_ld_p29.copc.laz
20110418_LAS_522_ld_p29.copc.laz
20110418_LAS_523_ld_p29.copc.laz
20110418_LAS_524_ld_p29.copc.laz
20110418_LAS_525_ld_p29.copc.laz
20110418_LAS_526_ld_p29.copc.laz
20110418_LAS_526a_ld_p29.copc.laz
20110418_LAS_538_ld_p29.copc.laz
20110418_LAS_539_ld_p29.copc.laz
20110418_LAS_540_ld_p29.copc.laz
20110418_LAS_541_ld_p29.copc.laz
20110418_LAS_542_ld_p29.copc.laz
20110418_LAS_543_1_ld_p29.copc.laz
20110418_LAS_543_ld_p29.copc.laz
20110418_LAS_544_ld_p29.copc.laz
20110418_LAS_544a_ld_p29.copc.laz
20110418_LAS_557_ld_p29.copc.laz
20110418_LAS_558_ld_p29.copc.laz
20110418_LAS_559_ld_p29.copc.laz
20110418_LAS_560_ld_p29.copc.laz
20110418_LAS_561_ld_p29.copc.laz
20110418_LAS_562_ld_p29.copc.laz
20110418_LAS_563_ld_p29.copc.laz
20110418_LAS_576_ld_p29.copc.laz
20110418_LAS_577_ld_p29.copc.laz
20110418_LAS_578_ld_p29.copc.laz
20110418_LAS_579_ld_p29.copc.laz
20110418_LAS_580_ld_p29.copc.laz
20110418_LAS_581_ld_p29.copc.laz
20110418_LAS_582_ld_p29.copc.laz
20110418_LAS_596_ld_p29.copc.laz
20110418_LAS_597_ld_p29.copc.laz
20110418_LAS_598_ld_p29.copc.laz
20110418_LAS_599_ld_p29.copc.laz
20110418_LAS_600_ld_p29.copc.laz
20110418_LAS_601_ld_p29.copc.laz
20110418_LAS_615_ld_p29.copc.laz
20110418_LAS_616_ld_p29.copc.laz
20110418_LAS_617_ld_p29.copc.laz
20110418_LAS_618_ld_p29.copc.laz
20110418_LAS_619_ld_p29.copc.laz
20110418_LAS_620_ld_p29.copc.laz
20110418_LAS_620a_ld_p29.copc.laz
20110418_LAS_635_ld_p29.copc.laz
20110418_LAS_636_ld_p29.copc.laz
20110418_LAS_637_ld_p29.copc.laz
20110418_LAS_638_ld_p29.copc.laz
20110418_LAS_639_ld_p29.copc.laz
20110418_LAS_639a_ld_p29.copc.laz
20110418_LAS_654_ld_p29.copc.laz
20110418_LAS_655_ld_p29.copc.laz
20110418_LAS_656_ld_p29.copc.laz
20110418_LAS_657_ld_p29.copc.laz
20110418_LAS_658_ld_p29.copc.laz
20110418_LAS_658a_ld_p29.copc.laz
20110418_LAS_674_ld_p29.copc.laz
20110418_LAS_675_ld_p29.copc.laz
20110418_LAS_676_ld_p29.copc.laz
20110418_LAS_677_ld_p29.copc.laz
20110418_LAS_677a_ld_p29.copc.laz
20110418_LAS_693_ld_p29.copc.laz
20110418_LAS_694_ld_p29.copc.laz
20110418_LAS_695_ld_p29.copc.laz
20110418_LAS_696_ld_p29.copc.laz
20110418_LAS_696a_ld_p29.copc.laz
20110418_LAS_712_ld_p29.copc.laz
20110418_LAS_713_ld_p29.copc.laz
20110418_LAS_714_ld_p29.copc.laz
20110418_LAS_715_ld_p29.copc.laz
20110418_LAS_732_ld_p29.copc.laz
20110418_LAS_733_ld_p29.copc.laz
20110418_LAS_734_ld_p29.copc.laz
20110418_LAS_751_ld_p29.copc.laz
20110418_LAS_752_ld_p29.copc.laz
20110418_LAS_753_ld_p29.copc.laz
20110418_LAS_769_ld_p29.copc.laz
20110418_LAS_770_ld_p29.copc.laz
20110418_LAS_771_ld_p29.copc.laz
20110418_LAS_772_ld_p29.copc.laz
20110418_LAS_787_ld_p29.copc.laz
20110418_LAS_788_ld_p29.copc.laz
20110418_LAS_789_ld_p29.copc.laz
20110418_LAS_790_ld_p29.copc.laz
20110418_LAS_805_ld_p29.copc.laz
20110418_LAS_806_ld_p29.copc.laz
20110418_LAS_807_ld_p29.copc.laz
20110418_LAS_808_ld_p29.copc.laz
20110418_LAS_825_ld_p29.copc.laz
20110418_LAS_826_ld_p29.copc.laz
20110418_LAS_827_ld_p29.copc.laz
20110418_LAS_828_ld_p29.copc.laz
20110418_LAS_846_ld_p29.copc.laz
20110418_LAS_847_ld_p29.copc.laz
20110418_LAS_848_ld_p29.copc.laz
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