Journal cover Journal topic
Earth System Science Data The Data Publishing Journal
Earth Syst. Sci. Data, 9, 435-443, 2017
https://doi.org/10.5194/essd-9-435-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
 
12 Jul 2017
High-resolution elevation mapping of the McMurdo Dry Valleys, Antarctica, and surrounding regions
Andrew G. Fountain1, Juan C. Fernandez-Diaz2, Maciej Obryk1, Joseph Levy3, Michael Gooseff4, David J. Van Horn5, Paul Morin6, and Ramesh Shrestha2 1Department of Geology Portland State University, Portland, OR 97201, USA
2National Center for Airborne Laser Mapping, University of Houston, Houston, TX 77204, USA
3University of Texas, Institute for Geophysics, Jackson School of Geosciences, Austin, TX 78758, USA
4Institute of Arctic & Alpine Research, University of Colorado, CO Boulder, 80309
5Department of Biology, University of New Mexico, Albuquerque, NM 87131, USA
6Polar Geospatial Center, University of Minnesota, St. Paul, MN 55108, USA
Abstract. We present detailed surface elevation measurements for the McMurdo Dry Valleys, Antarctica derived from aerial lidar surveys flown in the austral summer of 2014–2015 as part of an effort to understand geomorphic changes over the past decade. Lidar return density varied from 2 to > 10 returns m−2 with an average of about 5 returns m−2. Vertical and horizontal accuracies are estimated to be 7 and 3 cm, respectively. In addition to our intended targets, other ad hoc regions were also surveyed 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. These data are included in this report and data release. The combined data are freely available at https://doi.org/10.5069/G9D50JX3.

Citation: 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.
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We present detailed surface elevation measurements for the McMurdo Dry Valleys, Antarctica, and surroundings, derived from aerial lidar surveys flown in the austral summer of 2014–2015 as part of an effort to understand landscape changes over the past decade. Lidar return density varied from 2 to > 10 returns per square meter with an average of about 5 returns per square meter. vertical and horizontal accuracies are estimated to be 7 cm and 3 cm, respectively.
We present detailed surface elevation measurements for the McMurdo Dry Valleys, Antarctica, and...
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