LiDAR Dataset - Discovery Islands - 2014

2014 Discovery Islands Mission:

Three LiDAR mission areas were flown on August 7th to cover all of Savary Island and portions of Quadra Island. The Quadra North West zone covers Small Inlet and Waiatt Bay / Octopus Islands area; Quadra South covers surge narrows to Village Lake and Heriot Bay.

Dates: Aug. 7, 2014 Conducted by: UNBC LiDAR Research Group Area Covered: 8.75 km^2 (Savary Island), 14.35 km^2 (Quadra NW), 47.71 km^2 (Quadra South). Flight Height: 475 m Projection: UTM Zone 10 Datum: CSRS NAD 83 Geoid: Ellipdoid heights Average Point Density: 12.5 pts / m2 (Savary Island), 18.2 pts / m2 (Quadra NW), 20.1 pts / m2 (Quadra South). LiDAR points were processed in CSRS NAD83 UTM Zone 10, but use ELLIPSOID heights. Conversion to CGVD28 was completed after DEM creation using GPS-H. Scanner Type: Riegl VQ-580 Supervisor: Brian Menounos Technician: Rob Vogt Precise trajectory for the plane is solved using PosPac MMS. A calibration line across the base station both before and after the survey was used to aid in forward and reverse processing of the trajectory. Precise location for the base station was adjusted using NR Can's PPP. Position accuracy of the trajectory is ±3 cm.

There is a GNSS station established on Quadra Island as part of the Western Canada Deformation Array (WCDA) and the Canadian Active Control System (CACS). This station, approximately 40 km away, was used as the base station of flights of Savary Island. Further information on the station can be found at http://webapp.geod.nrcan.gc.ca/geod/data-donnees/station/report-rapport.php?id=M067000 Precise trajectory for the plane is solved using PosPac MMS. A calibration line across the base station both before and after the survey was used to aid in forward and reverse processing of the trajectory. Position accuracy of the trajectory is ±5 cm. LiDAR points were processed in CSRS NAD83 UTM Zone 9, but use ELLIPSOID heights. Conversion to CGVD28 was completed after DEM creation using GPS-H. Attempts at converting the point cloud to geoid heights resulted in a program crash.

Data outputs from the Discovery Island lidar survey include a digital surface model, las point cloud datasets, and digital elevation models.

Access and Use

Licence: Appropriate credit must be given to Hakai Institute and the authors of the dataset.

Data and Resources

Dates

Metadata Created October 26, 2018, 22:48 (UTC)
Metadata Updated October 26, 2018, 22:48 (UTC)
Reference Date(s) 2014-08-16 (Creation)
2017-04-10 (Publication)
2017-04-10 (Revision)
Frequency of Update notPlanned
Metadata Date October 17, 2018, 21:53 (UTC)

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Additional Info

Field Value
Contact Email data@hakai.org
encoding utf8
metadata-language eng
progress underDevelopment
resource-type dataset
Responsible Party Hakai Institute (Point of Contact, Processor)
spatial-reference-system 26910