================================================================================ USGS 3DEP LiDAR Point Clouds ================================================================================
.. contents:: Contents :depth: 2
Project Description --------------------------------------------------------------------------------
This AWS Public Dataset project is about processing the USGS 3DEP LiDAR point cloud data into a form that is cloud-friendly, streamable, lossless, and convenient.
The main landing page on AWS for the project is at https://registry.opendata.aws/usgs-lidar/
Public 3DEP LiDAR data is available in two forms on AWS:
- A
Requester Pays
s3://usgs-lidar containing many of the USGS resources
available as full-density LASzip_ tiles
- A public access bucket at
s3://usgs-lidar-public containing EPT resources mirroring many (but not all) of the resources in #1.
Entwine
................................................................................
A description of the
EPT_ format, which is a hierarchical format arranged by
progressive level-of-detail, is contained at
https://entwine.io/entwine-point-tile.html. EPT was chosen as the service
mechanism for this data due to its scalability potential to trillions of
points, flexibility, and its ease of use via open source infrastructure like
PDAL_, LASzip_, Potree_, and Plasio.js_.
To generate EPT datasets for your own data with Entwine, visit the
quickstart
__ and browse the configuration
documentation __ for more advanced
usage.
Processing
................................................................................
Data processing with
Entwine_ was performed on AWS EC2 c5d.9xlarge
instances using S3 __ for output storage.
Currently, there are more than 10 trillion LiDAR points available in over 950
distinct resources.
Visualization
................................................................................
The point cloud data may be visualized with
Potree_ or
Plasio.js_ via the index at http://usgs.entwine.io.
Coordinate System
................................................................................
The EPT data is accessible via
EPSG:3857 __ for ease of web usage - with PDAL the
data can be reprojected on the fly with the reprojection filter
__ which can be used in
combination with other processing pipeline stages.
The
EPT reader __ within PDAL_
may also be used to select areas of data for use locally.
Resource Links
--------------------------------------------------------------------------------
Entwine_
PDAL_ readers.ept_
Potree_
Plasio.js_
.. _readers.ept: https://pdal.io/stages/readers.ept.html
.. _Potree: http://potree
.. _Plasio.js: https://github.com/hobu/plasio.js
Support
--------------------------------------------------------------------------------
Thank you to the multiple organizations that have supported the development of
the USGS 3DEP LiDAR dataset.
USACE CRREL
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.. image:: ./images/rsgis_logo.png
:target: http://www.erdc.usace.army.mil/Locations/CRREL.aspx
:scale: 30%
The US Army Corps of Engineers Remote Sensing / GIS Center of Expertise at
CRREL_ sponsored the processing and development of the AWS 3DEP Public Dataset_
in multiple ways. First, it sponsored the development and continuing support of PDAL_ and Entwine_
open source software libraries, which were used to process and manage the data. Second,
it supported the processing and management of the 3DEP data to an Entwine Point Tiles_
public dataset.
Amazon Web Services Public Datasets Team
................................................................................
.. image:: https://d0.awsstatic.com/logos/powered-by-aws.png
:target: https://registry.opendata.aws
:scale: 30%
The AWS Public Datasets Team supported the effort by providing processing and
storage grants for the development of the
EPT_ data and ongoing support by
making access to that data publicly available.
Hobu, Inc.
................................................................................
.. image:: ./images/hobu-logo-2C-white.png
:target: https://hobu.co
:scale: 30%
Connor Manning_ from Hobu, Inc._ constructed the 3DEP EPT resources with
cloud processing and management tools from Hobu, Inc._.
.. _
Connor Manning: http://github.com/connormanning/
.. _Hobu, Inc.: https://hobu.co
.. _Entwine: https://entwine.io
.. _PDAL: https://pdal.io
.. _CRREL: https://www.erdc.usace.army.mil/Locations/CRREL.aspx
.. _
Entwine Point Tiles: https://entwine.io/entwine-point-tile.html
.. _EPT: https://entwine.io/entwine-point-tile.html
.. _LASzip: https://laszip.org
.. _
AWS 3DEP Public Dataset`: https://registry.opendata.aws/usgs-lidar/