DOI: https://doi.org/10.5069/G9ZC8119
OT Collection ID: OT.062020.32611.1
OT Collection Name: 2019 Ridgecrest, CA Pre-Earthquake Digital Surface Model V2
Short Name: CA19_Barn2Pre
Collection Platform: Structure from Motion / Photogrammetry

----------------------------------------------------------

Download and Access Products: 
	1. Raster
		opentopoID: OTSDEM.062020.32611.1
		Data Processing: https://portal.opentopography.org/raster?opentopoID=OTSDEM.062020.32611.1


----------------------------------------------------------

Collection Overview: This dataset includes a suite of pre-seismic, 2-meter resolution optical digital surface models (DSMs) pre-dating the July 2019 Ridgecrest earthquakes. The DSMs were constructed using DigitalGlobe base imagery (©DigitalGlobe 2019) and the open source SETSM software package . DSMs are vertically and horizontally registered to a separate pre-event optical DSM that was registered to ICESat-1 data. The base imagery includes 0.5m and 0.3m panchromatic in-track stereo imagery acquired from the WorldView-2 and WorldView-3 satellites. The generation of this data sets was funded in part by SCEC in cooperation with the U.S. Geological Survey.    The naming description of individual DSMs is as follows:     sensor_date _id1_id2_dem_2m-DEM.tif   where sensor is the sensor from which imagery was acquired (WV02-WorldView2, WV03-WorldView3), date is the acquisition dates in format YYMMMDD (i.e., 13AUG11), and id1 and id2 are the image identifier numbers provided by DigitalGlobe.   NOTE:This dataset covers a different spatial extent, and uses different base imagery than the similar dataset,  2019 Ridgecrest, CA Pre-Earthquake Digital Surface Model.

Dataset Acknowledgement: N/A

Dataset Citation: Barnhart, W. (2020). 2019 Ridgecrest, CA Pre-Earthquake Digital Surface Model V2. Distributed by OpenTopography. https://doi.org/10.5069/G9ZC8119.. Accessed: 2024-12-22

Use License: Not Provided

Dataset Keywords: Ridgecrest, Earthquakes, Digital Globe, WorldView, imagery, pre-event, lidar

Survey Date: 09/25/2014 - 10/21/2016
Publication Date: 06/10/2020

----------------------------------------------------------

Data Provider and Roles:
	1. University of Iowa
	Role: Principal Investigator
	Url: Not Available.

	2. DigitalGlobe
	Role: Collector
	Url: http://www.digitalglobe.com/

	3. Southern California Earthquake Center
	Role: Funder
	Url: https://www.scec.org/

	4. United States Geological Survey
	Role: Partner
	Url: https://www.usgs.gov/


----------------------------------------------------------

Total number of points: N/A

Area: 4,113 km^2

Point Density: N/A

Classifications: 
Coordinates System: 
	Horizontal: WGS84 / UTM Zone 11N Meters [EPSG: 32611]
	Vertical: WGS84 (Ellipsoid) [EPSG: 4326]

Survey Report: https://cloud.sdsc.edu:443/v1/AUTH_opentopography/www/metadata/CA19_barn2Pre_metadata.pdf


----------------------------------------------------------

Dataset Extent in KMZ format: https://portal.opentopography.org/getKml?otCollectionID=OT.062020.32611.1&download=true

Dataset Spatial Bounds:
	North: 36.0215799568476°
	South: 34.9665727246629°
	East: -117.276948885907°
	West: -117.791750946074°