Napa Watershed, CA
Welcome Guest ( Sign In )
DOI: https://doi.org/10.5069/G9BG2KW9
OT Collection ID: OT.052010.26910.1
OT Collection Name: Napa Watershed, CA
Short Name: Napa
Collection Platform: Airborne Lidar
OT Collection ID: OT.052010.26910.1
OT Collection Name: Napa Watershed, CA
Short Name: Napa
Collection Platform: Airborne Lidar
Download and Access Products:
| Point Cloud Data | Bulk Download | opentopoID: OTLAS.052010.26910.1 | |
| GE Hillshades | opentopoID: OTGE.052010.26910.1 |
Collection Overview:
These data were acquired by the National Center for Airborne Laser Mapping (NCALM) in 2003. They have kindly agreed to make these data available to the research community through OpenTopography.
Note: This is a classified last return dataset (i.e. there is not first return / canopy top data included). A bare earth model can be created from these data, but a model generated from the full point cloud produces something that approximates a low vegetation surface - not ground, but also not canopy top.
UPDATE: Full unfiltered 2003 point cloud ASCII files. Bulk download of the original unfiltered ASCII files (64 GB) from the 2003 Napa Watershed collection by the National Center for Airbone Laser Mapping (NCALM). The original ASCII data has been made available in response to the August 26, 2014 Mw 6.0 South Napa Earthquake.
Dataset Acknowledgement: Lidar data acquired by the National Center for Airborne Laser Mapping (NCALM).
Dataset Citation: Napa Watershed, CA. Distributed by OpenTopography. https://doi.org/10.5069/G9BG2KW9 . Accessed: 2024-12-21 Copied to Clipboard
Use License: CC BY 4.0
Dataset Keywords: California, lidar
Survey Date: 05/15/2003 - 06/01/2003
Publication Date: 05/01/2010
These data were acquired by the National Center for Airborne Laser Mapping (NCALM) in 2003. They have kindly agreed to make these data available to the research community through OpenTopography.Note: This is a classified last return dataset (i.e. there is not first return / canopy top data included). A bare earth model can be created from these data, but a model generated from the full point cloud produces something that approximates a low vegetation surface - not ground, but also not canopy top.
UPDATE: Full unfiltered 2003 point cloud ASCII files. Bulk download of the original unfiltered ASCII files (64 GB) from the 2003 Napa Watershed collection by the National Center for Airbone Laser Mapping (NCALM). The original ASCII data has been made available in response to the August 26, 2014 Mw 6.0 South Napa Earthquake.
Publications associated with this dataset can be found at NCALM's Data Tracking Center
Dataset Acknowledgement: Lidar data acquired by the National Center for Airborne Laser Mapping (NCALM).
Dataset Citation: Napa Watershed, CA. Distributed by OpenTopography. https://doi.org/10.5069/G9BG2KW9 . Accessed: 2024-12-21 Copied to Clipboard
Use License: CC BY 4.0
Dataset Keywords: California, lidar
Survey Date: 05/15/2003 - 06/01/2003
Publication Date: 05/01/2010
Data Provider and Roles:
Funder Collector
Funder Collector
Total number of points:
2,097,819,679 pts
Area: 1,451 km2
Point Density: 1.45 pts/m2
Classifications:
Coordinate System:
Horizontal: NAD83 / UTM Zone 10N Meters [EPSG: 26910]
Vertical: NAVD88 (GEOID99) [EPSG: 5703]
Units: meter
Survey Report: Reports
LAS Validation Data Report: Napa.html
Area: 1,451 km2
Point Density: 1.45 pts/m2
Classifications:
| Class 1 - Unclassified | 1,431,819,891 |
| Class 2 - Ground | 664,915,042 |
| Class 7 - Low Point (low noise) | 1,033,451 |
| Class 9 - Water | 28,821 |
| Class 10 - Rail | 22,474 |
Coordinate System:
Horizontal: NAD83 / UTM Zone 10N Meters [EPSG: 26910]
Vertical: NAVD88 (GEOID99) [EPSG: 5703]
Units: meter
Survey Report: Reports
LAS Validation Data Report: Napa.html
Tile index in shapefile format:
Download
Dataset Extent in GeoJSON format:
Point Cloud: Napa.geojson
Raster: Napa.geojson
Dataset Spatial Bounds: North: 38.686034° South: 38.053093° East: -122.175871° West: -122.655486°
Dataset Extent in GeoJSON format:
Point Cloud: Napa.geojson
Raster: Napa.geojson
Dataset Spatial Bounds: North: 38.686034° South: 38.053093° East: -122.175871° West: -122.655486°