English
 
Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Conference Paper

Greenland - ice sheet elevation - model comparison - GNSS - Sportive challenge

Authors

Bergeot,  Nicolas
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Bertrand,  Bruno
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Denis,  Gilles
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Goffart,  Nathan
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Chevalier,  Jean-Marie
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Defraigne,  Pascale
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Elisa,  Pinat
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

External Ressource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in GFZpublic
Supplementary Material (public)
There is no public supplementary material available
Citation

Bergeot, N., Bertrand, B., Denis, G., Goffart, N., Chevalier, J.-M., Defraigne, P., Elisa, P. (2023): Greenland - ice sheet elevation - model comparison - GNSS - Sportive challenge, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-4229


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021667
Abstract
The Nanok expedition (www.nanokexpedition.be) is an extreme sportive triathlon that took place from April to September 2022 in Greenland. The expedition consisted in a 600km traverse from West to East coasts using skis and pulkas, 1 000km sea-kayaking along the South coast and the opening of a 1 000m new free climbing route. During the skis and pulkas traverse, the explorers acquired continuous GNSS data, using a Septentrio AsteRx SB ProConnect powered by batteries and solar panels. This data set is used for two mains objectives. The first one is to make a profile of the current elevation of the ice sheet and compare it with elevation models. The second one is to use the GNSS data to retrieve the Total Electron Content (TEC) over Greenland to characterize the ionospheric activity at polar latitudes ((Figure 1). In this paper, we will discuss the technological challenge to acquire continuous GNSS data in extreme meteorological conditions, with weight and size limitations. We will then present our results on the estimated GNSS elevation profil, and the comparison with Arctic Digital elevation model of snow elevation. First results showed a mean melting on costal region of 1.5m/y. We also highlighted problems in the models which should be considered for ice mass balance estimation.