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Bjorn Grigholm

PhD Candidate, Graduate Research Assistant

Bjorn Grigholm

Contact Information

Biosketch

Graduate Research Assistant

Research interests

Late Holocene Climate and Environmental Reconstruction of central Asia via ice cores.

My focus is to establish a synoptic understanding of the variations (gradual and abrupt) of atmospheric circulation, temperature, atmospheric dust concentrations, and anthropogenic pollutants in central Asia through analysis and interpretation of glaciochemistry (e.g. stable isotopes, major soluble ions, and trace elements).

Research sites include: the Tibetan Plateau (Tanggala and Nyianquentanglha mountain ranges), the Tien Shan, and the Pamir.

Publications

  • Kang, S., Zhang, Y., Zhang, Y, Grigholm, B., Kaspari, S., Qin, D., Ren, J., and Mayewski, P.A., (2010) Variability of atmospheric dust loading over the central Tibetan Plateau based on ice core glaciochemistry, Atmospheric Environment, 44, 25, 2980-2989.
  • Grigholm, B., P. A. Mayewski, S. Kang, Y. Zhang, S. Kaspari, S. B. Sneed, and Q. Zhang (2009), Atmospheric soluble dust records from a Tibetan ice core: Possible climate proxies and teleconnection with the Pacific Decadal Oscillation, J. Geophys. Res., 114, D20118, doi:10.1029/2008JD011242.

    For more information: Download file (PDF)

  • Grigholm, B., Mayewski, P.A,, Kurbatov, A.V., Casassa, G., Contreras Staeding, A., Handley, M., Sneed, S.B. and Introne, D.S. (2009), Chemical composition of fresh snow from Marinelli Glacier, Tierra del Fuego, Chile, Journal of Glaciology, 55, 193, 769-776(8).

    For more information: Download file (PDF)

  • Aizen, V.B., Mayewski, P. A., Aizen, E. M., Joswiak, D. R., Surazakov, A. B.; Kaspari, S.,Grigholm, B, Krachler, M., Handley, M., Alexander, F. (2009) Stable-isotope and trace element time series from Fedchenko glacier (Pamirs) snow/firn cores, Journal of Glaciology, 55, 190, 275-291(17).
  • Wang, Y., Hou, S., Grigholm, B., and Song, L. (2009) An improved method for modeling spatial distribution of δD in surface snow over Antarctic ice sheet, Chinese Geographical Science, 19, 2, 120-125, DOI: 10.1007/s11769-009-0120-2
  • Zhang, Y., Kang. S, Qin, D Grigholm, B., Mayewski, P.A. (2007) Changes in annual accumulation retrieved from Geladaindong ice core and its relationship to atmospheric circulation over the Tibetan Plateau Chinese Science Bulletin 2007, 52(23) 3261-3266 DOI: 10.1007/s11434-007-0439-y
  • Kang. S, Zhang, Y., Qin, D., Ren, J., Zhang, Q. Grigholm, B., and Mayewski, P.A. (2007) Recent temperature increase recorded in an ice core in the source region of Yangtze River. Chinese Science Bulletin, 52, 6, 825-831, DOI: 10.1007/s11434-007-0140-1
  • Zhang, Y., Kang. S, Qin, D., Ren, J. Zhang, Y., Grigholm, B., Mayewski, P.A. (2007) Seasonal air temperature variations retrieved from a Geladaindong ice core, Tibetan Plateau Journal of Geographical Sciences, 17, 4, 431-441, DOI: 10.1007/s11442-007-0431-0
  • Zhang, Y, Kang. S,, Qin, D. Grigholm, B., and Mayewski, P.A. (2007) Changes in annual accumulation retrieved from Geladaindong ice core and its relationship to atmospheric circulation over the Tibetan Plateau Chinese Science Bulletin, 52, 23, 3261-3266, DOI: 10.1007/s11434-007-0439-y

Education

2007 M.S. University of Maine, 2001 B.S. University of Connecticut

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