- Meteorologist, 2010 - present. Vaisala Inc., Boulder, Colorado.
- Postdoctoral Researcher, 2008 - 2010. University of Hawaii, Honolulu, Hawaii.
- Research Assistant, 2002 - 2008. University of Hawaii, Honolulu, Hawaii.
- Systems Analyst, 1999 - 2002. ECMWF (European Centre For Medium-Range Weather Forecasts), Reading, United Kingdom.
- Aviation Meteorologist, 1998-1999 (part-time). Finnish Meteorological Institute, Helsinki International Airport, Finland.
- Assistant Meteorologist, 1996-1997 (part-time). Finnish Meteorological Institute, Helsinki International Airport, Finland.
- Research Assistant, 1995-1999. University of Helsinki, Finland.
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- Pessi, A., and S. Businger, 2009: The Impact of Lightning Data Assimilation on a Winter Storm Simulation over the North Pacific Ocean. Monthly Weather Review, 137, 3177-3195.
- Pessi, A., and S. Businger, 2009: Relationships Among Lightning, Precipitation, and Hydrometeor Characteristics over the North Pacific Ocean. Journal of Applied Meteorology and Climatology, 48, 833-848.
- Pessi, A., S. Businger, K. L. Cummins, N. W. S. Demetriades, M. Murphy, and B. Pifer, 2009: Development of a Long-Range Lightning Detection
Network for the Pacific: Construction, Calibration, and Performance. Journal of Atmospheric and Oceanic Technology, 26, 145-166.
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- Pessi, A., C. Chambers, and S. Businger, 2010: The Impact of Lightning Data Assimilation on Typhoon Jangmi Simulations. International Lightning Meteorology Conference, Orlando, FL, 19-22 April, 2010.
- Pessi, A., C. Chambers, and S. Businger, 2010: The Impact of Lightning Data Assimilation on Typhoon Jangmi Simulations. Workshop on Lightning Modeling and Data Assimilation, Norman, OK, 15-16 March, 2010.
- Pessi, A., and S. Businger, 2009: Lightning Distribution in Tropical Cyclones during TCS-08. Third THORPEX International Science Symposium, Monterey, CA, 14-18 September, 2009.
- Pessi, A., S. Businger, and T. Cherubini, 2009: Lightning Data Assimilation over the Pacific Ocean. ECMWF Workshop on Dignostics of Data Assimilation System Performance, Reading, England, 15-17 June 2009.
- Pessi, A., S. Businger, K. L. Cummins, N. Demetriades, and M. Murphy, 2008: The Promise of Long-Range Lightning Networks in Storm Analysis and Forecasting. 88th Annual AMS Meeting, New Orleans, January 2008.
- Pessi, A., S. Businger, T. Cherubini, K.L. Cummins, and N. Demetriades, 2007: Long-Range Lightning Detection over the Pacific: Applications of the Data Stream for TCS-08. TCS-08 Status Meeting, Naval Postgraduate School, Monterey, CA, 11-12 September, 2007.
- Pessi, A., S. Businger, T. Cherubini, 2006: Comparison of two Methods for
Assimilation of Lightning Data into NWP Models. Preprints, 1st International Lightning
Meteorology Conference, Tucson, Arizona, 26-27 April 2006.
- Pessi, A., S. Businger, T. Cherubini, 2005: Progress in
Assimilation of Lightning Data into a Mesoscale NWP Model. 17th
Conference on Numerical Weather Prediction, Washington, D.C., Aug. 1-5
2005, Amer. Meteor. Soc.
- Pessi, A., S. Businger, T. Cherubini, K.L. Cummins, T.Turner,
2005: Toward the Assimilation of Lightning Data over the Pacific Ocean
into a Mesoscale NWP Model. Conf. On Meteor. Appl. of
Lightning Data, San Diego, Jan. 9-13 2005, Amer. Meteor. Soc.
- Pessi, A., S. Businger, K.L. Cummins, T.Turner, 2004: On the
Relationship Between Lightning and Rainfall Over the
Pacific Ocean. AGU 2004 Western Pacific Geophysics Meeting,
16-20 August 2004, Honolulu, Hawaii
- Pessi, A., S. Businger, K.L. Cummins, T.Turner, 2004: On the
Relationship Between Lightning and Convective Rainfall Over the
Central Pacific Ocean. Preprints, 18th International Lightning Detection
Conference, 7-9 June 2004, Helsinki, Finland.
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