Roger Andersen

Roger Andersen has participated in 45 polar field programs since joining the Polar Science Center in 1975, when it was the Arctic Ice Dynamics Joint Experiment (AIDJEX).


Chipping a hole through old sea ice approximately 12 feet thick at Ice Station Fram 3 north of Greenland in late March 1981. “Hydroholes” like this allow scientists to lower instruments through the ice to make measurements of the ocean water underneath. Typically a warm building is assembled over the hole to keep it from freezing over and provide a warm work space. Six tons of ice chips were removed from this hole, and, yes, sea water is starting to gurgle through around the bottom. Thick multi-year floes like this have grown very rare in the Arctic over the past decade.

Polar Science Field Projects:

1. AIDJEX Spring 1975
2. AIDJEX 1975-76
3. OCSEAP Summer 1976
4. OCSEAP Spring 1977
5. OCSEAP Summer 1977
6. OCSEAP Summer 1978
7. Fram 1 Spring 1979
8. NORSEX Fall 1979
9. Fram 2 Spring 1980
10. Pond Inlet buoy Winter 1981
11. Fram 3 Spring 1981
12. Fram 4 Spring 1982
13. MIZEX 83 Summer 1983
14. MIZEX 84 Summer 1984
15. AIWEX Spring 1985
16. APLIS buoy Spring 1986
17. North Pole buoy Fall 1986
18. Mould Bay buoys Spring 1987
19. White Trident Spring 1988
20. CEAREX Spring 1989
21. Mould Bay buoys Spring 1990
22. Ice Station Weddell Winter 1992
23. LEADEX buoy Spring 1992
24. SIMI Fall 1993
25  SHEBA Fall 1997
26. SHEBA Spring 1998
27. APLIS Spring 1999
28. CCGS Laurier Fall 1999
29. NPEO Spring 2002
30. Bering Strait Summer 2002 

 

31. Switchyard Spring 2003
32. Switchyard Spring 2004
33. Switchyard Spring 2005
34. Switchyard Spring 2006
35. Switchyard Spring 2007
36. IPY Beaufort AXCTDs, Spring 2008
37. Switchyard Spring 2008
38. Switchyard Spring 2009
39. USCG C-130 Beaufort AXCTDs Fall 2009
40. Barrow Buoy Spring 2010
41. Switchyard Spring 2010
42. Beaufort AXCTDs Spring 2010
43. Beaufort Buoy and AXCTDs Fall 2010
44. NPEO Spring 2011
45. Switchyard Spring 2011




De-riming wind sensors on weather tower at SHEBA
drift ship in November 1997.
Lowering CTD profiler with portable winch at open
lead reached by SHEBA helicopter in May 1998.

 

Selected Projects

  • PSC_Logo

    Seasonal Ice Zone Reconnaissance Surveys Coordination

    The purpose of this project is coordination of the Seasonal Ice Zone Reconnaissance Surveys (SIZRS) program of repeated ocean, ice, and atmospheric measurements across the Beaufort-Chukchi sea seasonal sea ice zone (SIZ) utilizing US Coast Guard Arctic Domain Awareness (ADA) flights of opportunity. SIZRS, like the ONR Arctic and Global Prediction Program, is motivated by the rapid decline in summer ice extent that has occurred in recent years. The SIZ is the region between maximum winter sea ice extent and minimum summer sea ice extent. As such, it contains the full range of positions of the marginal ice zone (MIZ)…

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  • NPEO_logo_KR

    North Pole Environmental Observatory

    The observatory is staffed by an international research team that establishes a camp at the North Pole each spring to take the pulse of the Arctic Ocean and learn how the world’s northernmost sea helps regulate global climate.

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  • switchyard

    The Fresh Water Switchyard of the Arctic Ocean

    This project supports the design, development, and implementation of a component of an Arctic Ocean Observing System in the Switchyard region of the Arctic Ocean (north of Greenland and Nares Strait) that serves the scientific studies developed for the IPY (International Polar Year), SEARCH (Study of Environmental ARctic Change), and related programs.

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Selected Publications

  • Morison, J., R. Kwok, C. Peralta-Ferriz, M. Alkire, I. Rigor, R. Andersen, and M. Steele, Changing Arctic Ocean Freshwater Pathways Measured With ICESat and GRACE, Nature, 481, 66-70, DOI: 10.1038/nature10705, 2012

  • Morison, J. R. Kwok, C. Peralta-Ferriz, M. Alkire, I. Rigor, R. Andersen, and M. Steele, Changing Arctic Ocean freshwater pathways measured with ICESat and GRACE, Nature, in review, 2011.

  • Morison, J., R. Kwok, C. Peralta-Ferriz, M. Alkire, I. Rigor, R. Andersen, M. Steele (2011), Changes in Arctic Ocean circulation and freshwater measure with ICESat altimetry, GRACE gravimetry, and in situ observations, Nature, 2011.

  • Morison, J., R. Kwok, C. Peralta-Ferriz, M. Alkire, I. Rigor, R. Andersen, M. Steele (2011), Changes in Arctic Ocean circulation and freshwater measure with ICESat altimetry, GRACE gravimetry, and in situ observations, Nature, accepted.

  • Aagaard, K., R. Andersen, J. Swift, and J. Johnson,’ A large eddy in the central Arctic Ocean’, Geophys. Res. Lett., 35, L09601, doi:10.1029/2008GL033461, 2008.