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Collection Overview: Airborne lidar data were collected with the Optech Titan multispectral sensor of the McMurdo Dry Valleys, Antarctica during the austral summer of 2014-2015 as part of an effort to understand geomorphic changes over the past decade. Lidar point density varied from 2 to >10 returns per m² with an average of about 5 returns per m². Vertical and horizontal accuracies are estimated to be 0.07 m and 0.03 m, respectively. The lidar coverage comprises roughly 3600 km² with includes the bottoms and sides of Taylor, Pearse, Wright, Victoria, Mckelvey, Barwick, and Valham valleys, Bull Pass, in addition to other ad hoc regions nearby including the Pegasus flight facility and two regions on Ross Island, McMurdo Station/Scott Base (and surroundings), and the coastal margin between Cape Royds and Cape Evans.

A detailed description of the survey can be found in the Earth System Science Data publication High-resolution elevation mapping of the McMurdo Dry Valleys, Antarctica, and surrounding regions (Fountain et al., 2017).

Dataset Acknowledgement: The user acknowledges that 2014-2015 lidar survey of the McMurdo Dry Valleys, Antarctica dataset was made possible by the National Science Foundation (NSF) through the Antarctic Integrated Systems Science award ANT-1246342 granted to Andrew G. Fountain, Department of Geology, Portland State University. The data were collected and processed by the NSF National Center for Airborne Laser Mapping (NCALM) and made available through the OpenTopography Facility.

When using this data, please cite: Fountain, A. G., Fernandez-Diaz, J. C., Obryk, M., Levy, J., Gooseff, M., Van Horn, D. J., Morin, P., and Shrestha, R.: High-resolution elevation mapping of the McMurdo Dry Valleys, Antarctica, and surrounding regions, Earth Syst. Sci. Data, 9, 435-443, https://doi.org/10.5194/essd-9-435-2017, 2017.

Dataset Citation: 2014-2015 lidar survey of the McMurdo Dry Valleys, Antarctica. Distributed by OpenTopography. https://doi.org/10.5069/G9D50JX3 . Accessed: 2023-06-01

Use License: CC BY 4.0

Dataset Keywords: Antarctica, McMurdo Dry Valleys, Taylor, Wright, Victoria, Mckelvey, Barwick, Valham, Asgard, Pearse, Cape Royds, Cape Evans, Pegasus Field, McMurdo Station, lidar

Survey Date: 12/04/2014 - 01/19/2015

Publication Date: 11/30/2016

Data Provider and Roles:
Funder

• National Science Foundation

Collector

• National Center for Airborne Laser Mapping

Total number of points: 14,126,743,483 pts

Area: 2,775.65 km²

Point Density: 5.09 pts/m²

Classifications:

Class 0 - Never classified	14,125,926,002
Class 1 - Unclassified	817,481

Raster Resolution: 1 meter

Coordinate System:
    Horizontal: USGS Transantarctic Mountains Projection based on WGS84 ellipsoid [EPSG: 3294]
    Vertical: WGS84 (Ellipsoid) Heights Meters [EPSG: 4326]

Units: meter

Survey Report: 2014_2015Antarctica_Fountain_Metadata.pdf

LAS Validation Data Report: MDV_2014.html

Tile index in shapefile format: Download

Dataset Extent in KMZ format: Download

Dataset Spatial Bounds: North: -77.2119047443454°     South: -78.282528025863°     East: 166.95825154803°     West: 160.105465709427°