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|  |  |  |  | | | | Article Images |  | Polar explorer delivers rare snow-depth data to ESA for CryoSat validation 22 September 2005
 | Marc Cornelissen (right) handing over the snow-depth data to ESA's CryoSat Validation Manager Malcolm Davidson (left) at ESA-ESTEC on 21 September 2005
Credits: ESA |  |  |  |  |
| | | |  | Pole Track 2005 is an international North Pole expedition aiming to support climate change research. During the expedition valuable snow-depth measurements we taken to support CryoSat's validation programme.
Credits: XMARX |  |  |  |  |
| | | | | | | |  | Born in 1968, Marc Cornelissen completed his studies in 1995 at the Technical University in Delft in the Netherlands, after which he decided to start a career as a professional adventurer and expedition organiser. He has experience in making expeditions into many remote regions. His projects have taken him to the Peruvian cloud forests, the Gibson Desert of Australia, and more often than not, to the Earth's polar regions. He is one of the few who has reached both the Geographic North and South Pole on skis (in 1997 and 2000 respectively).
Credits: XMARX |  |  |  |  |
| | | |  | Measurments were taken every evening along a 400 to 500 metre straight line, which was chosen to feature varying types of ice such as thin ice, pressure ridges and expanses of thick ice.
Credits: XMARX |  |  |  |  |
| | | |  | Two members of the Pole Track team carefully taking snow depth measurements on the Arctic Ocean.
Credits: XMARX |  |  |  |  |
| | | |  | Although the Pole Track expedition was carried out on skis, each of the team members pulled a sledge that can also be used as a canoe if they have to cross open water (called leads). However, it is often quicker to actual get in and swim across wearing special dry suits.
Credits: XMARX |  |  |  |  |
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|  | CryoSat Related articles Malcolm Davidson, Validation ManagerPolar expedition contributes to ESA's ice mission CryoSatIce-covered Baltic Sea proves ideal setting for final pre-launch CryoSat validationScientists complete experiments in the Arctic before CryoSat launchIn depth Living PlanetCryoSat-2Earth Explorers overviewCampaignsSpecial features Validation fieldwork videoRelated links Pole Track 2005Climate Change College
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