2007 USACE Lidar: Pacific Islands (Saipan) Point Cloud files with Orthometric Vertical Datum Local Mean Sea Level
Below are links to the files that make up the 2007 USACE Lidar: Pacific Islands (Saipan) dataset in an orthometric vertical datum Local Mean Sea Level. 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 are referenced to mean sea level.
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
https://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.
There are many download managers you can use to get all the data. An example is the uGet program using the list of URLs in file urllist561.txt.
Several posts on the GeoZone blog provide help with downloading, including:
The total size to download all the files is 1.8G. There are 172 LAZ files and the summary class table is:
Class Number | Class Name | Points |
0 | Never Classified | 28023395 |
1 | Unclassified | 383229546 |
2 | Ground | 44777642 |
4 | Medium Vegetation | 1 |
7 | Low Point (noise) | 293 |
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).
Cloud Access
This data is now in an AWS S3 bucket at s3://noaa-nos-coastal-lidar-pds/laz/msl/561.
Meta Info
Tile Index: tileindex.zip (Shapefile)
                2007_USACE_CNMI_index.gpkg (GeoPackage)
Metadata: 2007_USACE_CNMI_metadata.xml
Metadata: 2007_USACE_CNMI_metadata.html
XYZ range table: 2007_USACE_CNMI_minmax.csv
README: 0README.txt (contains similar information to above)
URL List: urllist561.txt is a list of all the URLs for batch downloading.
Supplemental Info
supplemental/2007_JALBTCX_Topo_Saipan_Lidar.kmz
supplemental/index.html
Point Clouds
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20070507_saipan_55pcs6978_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6486_utm_classified_ld_p1001.laz
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20070507_saipan_55pcs6977_utm_classified_ld_p1001.laz
20070507_saipan_55pcs7488_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6586_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6483_utm_classified_ld_p1001.laz
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20070507_saipan_55pcs6176_utm_classified_ld_p1001.laz
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20070507_saipan_55pcs6475_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6880_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6984_utm_classified_ld_p1001.laz
20070507_saipan_55pcs7188_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6371_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6575_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6175_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6682_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6474_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6879_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6983_utm_classified_ld_p1001.laz
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20070507_saipan_55pcs6981_utm_classified_ld_p1001.laz
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20070507_saipan_55pcs6472_utm_classified_ld_p1001.laz
20070507_saipan_55pcs7185_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6877_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6980_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6571_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6282_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6979_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6172_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6679_utm_classified_ld_p1001.laz
20070507_saipan_55pcs7184_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6876_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6281_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6471_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6570_utm_classified_ld_p1001.laz
20070507_saipan_55pcs6678_utm_classified_ld_p1001.laz
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20070507_saipan_55pcs6076_utm_classified_ld_p1001.laz
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20070507_saipan_55pcs6073_utm_classified_ld_p1001.laz
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20070507_saipan_55pcs5973_utm_classified_ld_p1001.laz
20070507_saipan_55pcs5972_utm_classified_ld_p1001.laz
20070507_saipan_55pcs5971_utm_classified_ld_p1001.laz
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