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Pedersen, Christina Alsvik
Position: Research scientist
Mobile phone: +47 91 73 55 59
Direct phone: +47 77 75 05 51
E-mail: christina.pedersen@npolar.no
Workplace: Norwegian Polar Institute, Tromsø
Visit address: Polar Environmental Centre, NO-9296 Tromsø
 

BIOGRAPHY HIGHLIGHTS
•    Post Doc Researcher at The Norwegian Polar Institute
•    PhD position at The Norwegian Polar Institute and University of Tromsø
•    M.Eng. in Physics from University of Tromsø, 2002

MAIN SCIENTIFIC INTERESTS
I’m interested in optical properties of snow and sea-ice, covering in-situ field measurements, remote sensing and modeling. I’m also interested in how aerosols (in particular black carbon) affect the spectral signature of snow albedo.
Take a look at: www3.npolar.no/~xtina for more information.

CURRENT ACTIVITIES/PROJECT INVOLVEMENT
•    Climate effects of reducing black carbon emissions (NFR, Postdoc project)
•    Measurements of Black Carbon aerosols in Arctic snow - interpretation of effect on snow reflectance (NFR)
•    VAUUAV - Variability of Albedo Using an Unmanned Aerial Vehicle

•    Forskningsprosjekt på biomembran som klimatiltak: Undersøkelser av bio-membran med hensyn på overflate-albedo og jordsmonn (NPI project leader)

FIELD WORK/CRUISE
•    Black Carbon field work in Barrow, Alaska (2008)
•    Black Carbon field work in Ny-Ålesund, Svalbard (2007)
•    Fram2005 cruise in Fram Strait, Arctic Ocean (2005)
•    AIO field work in Van Mijenfjorden, Svalbard (2004)
•    CLPX field work in Colorado, USA (2003)

PUBLICATION
•    C. A. Pedersen, E. Roechner, M. Luthje and J.-G. Winther. A New Sea Ice Albedo Parameterization for ECHAM5 GCM Including Melt Ponds. Resubmitted JGR, Sept 2008.
•    C. A. Pedersen, R. Hall, S. Gerland, A. H. Sivertsen, T. Svenøe and C. Haas. Advanced Airborne Profiling over Fram Strait Sea Ice. Accepted, Cold Regions Science and Technology, Aug. 2008.
•    C. A. Pedersen, F. Godtliebsen and A. C. Roesch. Statistical Significance in the Context of Validating Climate Models Using Global Albedo Distributions. Journal of Geophysical Research, Vol 113, D10108, 2008.
•    C. A. Pedersen. Optical Propeties of Snow and Sea Ice - Field Measurements, Parameterization Schemes and Validation. Dr. Scient Thesis, Dec. 2007.
•    C. A. Pedersen and J.-G. Winther. Intercomparison and Validation of Snow Albedo Parameterisation Schemes in Climate Models. Climate Dynamics, 25:351-362, 2005.
•    C. A. Pedersen, D. K. Hall, B. Hamre, E. Vermote and S. Gerland. Sea-Ice Albedo from Moderate Resolution Imaging Spectroradiometer (MODIS). In Preparation.

PRESENTATIONS
•    C. A. Pedersen. Optical Propeties of Snow and Sea Ice - Field Measurements, Parameterization Schemes and Validation. Presentation of thesis, Mat. Nat, University of Tromsø, March 2008.
•    C. A. Pedersen. Evidence, Mechanisms and Impacts of the Accelerated  Arctic Warming, Trial Lecture, Mat. Nat, University of Tromsø, March 2008.
•    C. A. Pedersen, S. Gerland, J. Strom, T. K. Berntsen, R. B. Skeie, S. Forsstrom, G. Myhre and E. Isamsson, In-Situ Observations and Modeling of Black Carbon Aerosols in Arctic Snow. Poster presentation at AGU, San Fransisco, USA, Dec. 2007.
•    C. A. Pedersen, S. Gerland, S. Forsstrom, J. Strom, T. K. Berntsen, S. A. Warren, R. Brandt and A. Clarke, Soot Carbon Aerosols in Arctic Snow and Implications for Albedo Change. Presentation at Nysmac, Cambridge, England, Oct 2007.
•    C. A. Pedersen, F. Godtliebsen and A. C. Roesch, Statistical Significance vs. Physical Significance: Validation of Climate Models. Poster presentation at the 14th Norwegian Statistical Meeting, Sommaroy, Norway, June 2007.
•    C. A. Pedersen, Snow and Sea Ice Albedo in Climate Models. Presentation at IGS Nordic Branch Meeting, Tromsø, Norway, 2006.
•    C. A. Pedersen, F. Godtliebsen and A. C. Roesch, An Advanced Methodology for Finding Significant Features in Climatological Images. Poster presentation at 1st International CliC Meeting, Beijing, China, 2005.
•    S. Gerland, D. K. Perovich, C. Haas, C. A. Pedersen, E. Hansen and B. Ivanov, Climate Feedback Mechanisms and the Energy Balance of Arctic Sea Ice. Poster presentation at 1st International CliC Meeting, Beijing, China, 2005.
•    C. A. Pedersen, J.-G. Winther and F. Godtliebsen, Intercomparison and Validation of Snow and Sea-Ice Albedo Parameterisation Schemes in Climate Models. Poster presentation at 85th American Meterological Society Annual Meeting, San Diego, California, 2005.
•    C. A. Pedersen and J.-G. Winther, Intercomparison and Validation of Snow and Sea-Ice Albedo Parameterisation Schemes in Climate Models. Poster presentation at International Meeting on Statistical Climatology, Cape Town, South Africa, 2004.


 


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