| dataBbox |
{"type": "Polygon", "coordinates": [[[-117.2714536, 32.55364928], [-116.2860505, 32.55364928], [-116.2860505, 33.43228395], [-117.2714536, 33.43228395], [-117.2714536, 32.55364928]]]}
|
| dataType |
GeoJSON
|
| issueDate |
2023-04-21 01:30:08.857000+00:00
|
| lang |
en
|
| lastUpdateDate |
2023-04-21 02:10:10.067000+00:00
|
| license |
See license at: http://www.usa.gov/publicdomain/label/1.0/
|
| pocEmail |
3DEP@usgs.gov
|
| pocName |
USGS 3D Elevation Program (3DEP)
|
| publisherEmail |
3DEP@usgs.gov
|
| publisherName |
USGS 3D Elevation Program (3DEP)
|
| purpose |
<p>High-resolution digital elevation data generated by airborne lidar have led to significant advances in geomorphology, the branch of geoscience concerned with the origin and evolution of Earth's surface topography. Lidar provides unique characteristics relative to other remotely sensed data sources by providing three-dimensional feature information that cannot be derived from traditional imaging sensors. Lidar data serves as a source of data for the elevation layer of The National Map, and provides surface information for earth science studies and mapping applications in the United States. The data are utilized by the scientific and resource management communities for global change research, hydrologic modeling, resource monitoring, visualization, and other applications.</p>
|
| spatial |
{"type": "Polygon", "coordinates": [[[-117.2714536, 32.55364928], [-116.2860505, 32.55364928], [-116.2860505, 33.43228395], [-117.2714536, 33.43228395], [-117.2714536, 32.55364928]]]}
|
| spatialCov |
{"type": "Polygon", "coordinates": [[[-117.2714536, 32.55364928], [-116.2860505, 32.55364928], [-116.2860505, 33.43228395], [-117.2714536, 33.43228395], [-117.2714536, 32.55364928]]]}
|
| spatialCovFormat |
geojson
|
| status |
submitted
|
| theme |
["3dep","national-geospatial-data-asset","las", "laz"]
|
| updateFreq |
As needed
|
| uploadType |
dataset
|
| Groups |
|
| Tags |
- 3dep
- NSF
- United States
- california
- las
- laz
|
| isopen |
False
|
| metadata_created |
2026-10-30T17:36:46.242494
|
| metadata_modified |
2026-10-30T17:36:46.242503
|
| notes |
<p>This dataset includes a GeoJSON spatial index and a 3D visualization link for the CA_SanDiego_2015_C17 project. This data collection of the 3D Elevation Program (3DEP)
consists of Lidar Point Cloud (LPC) projects as provided to the USGS.
These point cloud files contain all the original lidar points collected,
with the original spatial reference and units preserved. These data may
have been used as the source of updates to the 1/3-arcsecond,
1-arcsecond, and 2-arcsecond seamless 3DEP Digital Elevation Models
(DEMs). The 3DEP data holdings serve as the elevation layer of The
National Map, and provide foundational elevation information for earth
science studies and mapping applications in the United
States. Lidar (Light detection and ranging) discrete-return point cloud
data are available in LAZ format. The LAZ format is a lossless
compressed version of the American Society for Photogrammetry and Remote
Sensing (ASPRS) LAS format. Point Cloud data can be converted from LAZ
to LAS or LAS to LAZ without the loss of any information. Either format
stores 3-dimensional point cloud data and point attributes along with
header information and variable length records specific to the data.
Millions of data points are stored as a 3-dimensional data cloud as a
series of geo-referenced x, y coordinates and z (elevation), as well as
other attributes for each point. Additonal information about the las
file format can be found here:
https://www.asprs.org/divisions-committees/lidar-division/laser-las-file-format-exchange-activities.
All 3DEP products are public domain.</p>
|
| num_resources |
1
|
| num_tags |
6
|
| title |
CA_SanDiego_2015_C17
|