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Jan Hafner Scientific Computer Programmer International Pacific Research Center School of Ocean and Earth Science and Technology University of Hawaii Honolulu, Hawaii 96822 Phone: (808) 956-2530 Fax: (808) 956-9425 Email:

Education

• 1996 - Ph.D. (Atmospheric Science), University of Alabama in Huntsville, Huntsville, Alabama
• 1995 - M.S. (Atmospheric Science), University of Alabama in Huntsville, Huntsville, Alabama
• 1990 - RNDr. (Meteorology), Charles University, Prague, Czechoslovakia
  (RNDr. - Rerum Naturalium Doctoris corresponds to M.S.)

Research Interests 

• Mesoscale numerical modeling
• Climate modeling

Scientific Work Experience

• Scientific Computer Programmer, IPRC, University of Hawaii, February 2001–present
• Research Associate, Jackson State University, 1999–2001
• Postdoctoral fellow, CIRA - Colorado State University, 1997–1999
• Graduate Assistant, University of Alabama in Huntsville, 1992–1996

Awards

• Fleming-Shenk Student Paper Award, first runner up in The 8th Conference on
  Satellite Meteorology and Oceanography, American Meteorological Society
  January 29–February 2, 1996, Atlanta, GA.

Presentations

• Hafner, J., and R.S. Reddy, 2000: Mesoscale modeling of seabreeze circulation in Louisiana-Mississippi Gulf coast region.
  AGU Spring Meeting,
  May 31–June 3, 2000, Washington DC.
• Abbate, G., J. Hafner, L. De Cecco, and S. Martini, 1998: Remote sensing study of microclimate in urban areas: application to the area of Rome.
  Proceedings of  the 8th URSI Commission of Triennial Open Symposium,
  September 22–25, 1998, Averio, Portugal.
• Abbate, G., J. Hafner, H. Kowalewska, L. de Cecco, and S. Martini, 1998: Telerilevamento e GIS per caratterizzare, sorvegliare e gesture la risorsa ambientale Amicroclima nolle aree urbane,
  Procc. 2nd Conferenza Nationale ASITA,
  November 24Washington DC27, 1998, Fiera Bolzano, Italy.
• Kidder, S.Q., and J. Hafner, 1995: A satellite study of urban warming for global climate research, NIGEC Second Annual Research Symposium: 'Reducing Scientific Uncertainty II',
  April 26–27, 1995, Tuscaloosa, AL.

Refereed Publications

• Annamalai, H., J. Hafner, K.P. Sooraj and P. Pillai, in press: Global warming shifts the monsoon circulation, drying South Asia J. Climate, IPRC-920.
• Eriksen, M., N.A. Maximenko, M. Thiel, A. Cummins, G. Lattin, S. Wilson, J. Hafner, A. Zellers, and S. Rifman, in press: Plastic pollution in the South Pacific subtropical gyre. Marine Pollution Bulletin, IPRC-948.
• Carson, H.S., M.R. Lamson, D. Nakashima, D. Toloumu, J. Hafner, N.A. Maximenko, and K.J. McDermid, 2013: Tracking the sources and sinks of local marine debris in Hawai'i Marine Environmental Research, 84, 76-83, doi:10.1016/j.marenvres.2012.12.002. IPRC-947.
• Maximenko, N., J. Hafner, and P. Niiler, 2012: Pathways of marine debris from trajectories of Lagrangian drifters. Marine Pollution Bulletin, 65 (1‐3), 51-62, doi:10.1016/j.marpolbul.2011.04.016. IPRC-782.
• Ajayamohan, R.S., H. Annamalai, J.-J. Luo, J. Hafner, and T. Yamagata, 2011: Poleward Propagation of Boreal Summer Intraseasonal Oscillations in a Coupled Model: Role of Internal Processes. Clim. Dyn., 37, 851-867, DOI: 10.1007/s00382-010-0839-6.
• Annamalai, H., S. Kida and J. Hafner, 2010: Potential impact of the tropical Indian Ocean - Indonesian Seas on El Nino characteristics. J. Climate, 23, 3933–3952.
• Law, K.L., S. Morét-Ferguson, N.A. Maximenko, G. Proskurowski, E. E. Peacock, J. Hafner, and C. M. Reddy, 2010: Plastic accumulation in the North Atlantic Subtropical Gyre. Science, 329, 1185-1188.
• Zheng, X.-T., S.-P. Xie, G.A. Vecchi, Q. Liu, and J. Hafner, 2010: Indian Ocean dipole response to global warming: Analysis of ocean-atmospheric feedbacks in a coupled model. J. Climate, 23 (5), 1240-1253.
• Stowasser, M., H. Annamalai, and J. Hafner, 2009: Response of the South Asian Summer Monsoon to global warming: Mean and Synoptic systems. J. Climate, 22 (4), 1014–1036.
• Xie, S.-P., K. Hu, J. Hafner, H. Tokinaga, Y. Du, G. Huang, and T. Sampe, 2009: Indian Ocean capacitor effect on Indo-western Pacific climate during the summer following El Nino. J. Climate, 22 (3), 730–747, DOI: 10.1175/2008JCLI2544.1.
• Yang, Y., S.-P. Xie, and J. Hafner, 2008: Cloud patterns lee of Hawaii Island: A synthesis of satellite observations and numerical simulation. J. Geophys. Res.-Atmos., 35, L04807, doi:10.1029/2008JD009889.
• Yang, Y., S.-P. Xie, and J. Hafner, 2008: The thermal wake of Kauai Island: Satellite observations and numerical simulations. J. Climate, 21, 4568–4586.
• Small, R.J., S.-P. Xie, and J. Hafner, 2005: Satellite observations of mesoscale ocean features and co-propagating atmospheric surface fields in the tropical belt. J. Geophys. Res.-Oceans, 110, doi:10.1029/2004JC002598.
• Hafner, J., and S.-P. Xie, 2003: Far-field simulation of the Hawaiian wake: Sea surface temperature and orographic effects. J. Atmos. Sci., 60, 3021–3032.
• Xie, S.-P., J. Hafner, Y. Tanimoto, W.T. Liu, H. Tokinaga, and H. Xu, 2002: Bathymetric effect on the winter sea surface temperature and climate of the Yellow and East China Seas. Geophys. Res. Lett., 29, 2228, doi:10.1029/2002GL015884.
• Hafner, J., and S.Q. Kidder, 1999: Urban heat island modeling in conjunction with satellite-derived surface/soil parameters. J. Appl. Meteor., 38, 448–465.