Dr. Ryan L. Fogt

 
 

Research Interests


    I am a climatologist who investigates the statistics and dynamics of large-scale climate in the Southern Hemisphere using observations, atmospheric reanalyses, and coupled global climate models.  Currently, my main research areas include:

The relationships between the high southern latitude El Niño-Southern Oscillation (ENSO) teleconnection and the Southern Annular Mode (SAM), and their impacts

The role of the stratosphere-troposphere coupling on tropospheric climate in the Southern Hemisphere

The evaluation of climate models and atmospheric reanalyses in the polar regions

Seasonal reconstructions of the Southern Annular Mode

Distinguishing between natural and forced (i.e., anthropogenic) variability in recent and historic climate patterns in the polar regions


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Peer-Reviewed Publications


2012 Fogt, R. L., A. J. Wovrosh, R. A. Langen, and I. Simmonds.  The Characteristic Variability and Connection to the Underlying Synoptic Activity of the Amundsen-Bellingshausen Seas Low. J. Geophys. Res., 117, doi:10.1029/2011JD017337.

2011Fogt, R. L., D. H. Bromwich, and K. M. Hines.  Erratum to: Understanding the SAM influence on the South Pacific ENSO teleconnection.  Climate Dynamics, 37, 2127-2128.

2011Bromwich, D. H., D. F. Steinhoff, I. Simmonds, K. Keay, and R. L. Fogt.  Climatological aspects of cyclogenesis near Adèlie Land Antarctica.  Tellus A, 63, 921-938.

2011Fogt, R.L., (associate editor and author).  Antarctica [In “State of the Climate in 2010”].  Bulletin of the American Meteorological Society, 92, S161-S171.

2011Fogt, R. L., D. H. Bromwich, and K. M. Hines.  Understanding the SAM influence on the South Pacific ENSO teleconnection.  Climate Dynamics, 36, 1555-1576.

2010Fogt, R.L., (associate editor and author).  Antarctica [In “State of the Climate in 2009”].  Bulletin of the American Meteorological Society, 91, S125-S134.

2009Fogt, R.L., (associate editor and author).  Antarctica [In “State of the Climate in 2008”].  Bulletin of the American Meteorological Society, 90, S113-S121.

2009 Jones, J. M., R. L. Fogt, M.  Widmann, G. J. Marshall, P. D.  Jones, and M. Visbeck.  Historical SAM Variability.  Part I: Century Length Seasonal Reconstructions of the Southern Hemisphere Annular Mode.  J. Climate, 22, 5319-5345.

2009Fogt, R. L., J. Perlwitz, A. J. Monaghan, D.H. Bromwich, J. M. Jones, and G. J. Marshall.  Historical SAM Variability. Part II: 20th Century Variability and Trends from Reconstructions, Observations, and the IPCC AR4 Models.  J. Climate, 22, 5346-5365.

2009Fogt, R. L., J. Perlwitz, S. Pawson, and M. A. Olsen. Intra-annual relationships between polar ozone and the SAM.  Geophys. Res. Lett., 35, L04707, doi:10.1029/2008GL036627.

2008 Fogt, R.L., and D.H. Bromwich.  Atmospheric moisture and cloud cover characteristics forecast by AMPS.  Wea. Forecasting, 23, 914-930.

2008 Fogt, R.L. Contributing author to the Antarctic circulation section of 'State of the Climate in 2007'. Bull. Amer. Meteorol. Soc., 89, s99-s100.

2008Perlwitz, J., S. Pawson, R. L. Fogt, J. E. Nielsen, and W. D. Neff.  Impact of stratospheric ozone hole recovery on Antarctic climate. Geophys. Res. Lett., 35, L08714, doi:10.1029/2008GL033317.

2007 Fogt, R.L. Contributing author to the Antarctic circulation section of 'State of the Climate in 2006'. Bull. Amer. Meteorol. Soc., 88, s72-s73.

2007 Fogt, R.L.  Contributing author, IPCC Working Group 1 (WG1) Fourth Assessment Report, for “Chapter 3: Observations: Surface and Atmospheric Climate Change”; subsections 3.4.1.3, “Changes in the Free Atmosphere: Temperature of the Upper Air: Troposphere and Stratosphere” and 3.5.2, “Changes in Atmospheric Circulation: Geopotential Height, Winds, and the Jet Stream”.

2007 Bromwich, D.H., R.L. Fogt, K.I. Hodges, and J.E. Walsh.  A tropospheric assessment of the ERA-40, NCEP, and JRA-25 global atmospheric reanalyses in the polar regions.  J. Geophys. Res., 112, doi:10.1029/2006JD007859.

2006 Monaghan, A.J., D.H. Bromwich, R.L. Fogt, S-H. Wang, P.A. Mayewski, D.A.Dixon, A.A. Ekaykin, M. Frezzotti, I.D. Goodwin, E. Isaksson, S.D.Kaspari, V.I. Morgan, H. Oerter, T.D. van Ommen, C.J. van der Veen, and J. Wen.  Insignificant change in Antarctic snowfall since the International Geophysical Year, Science, 313, 827-831.

2006 Fogt, R.L., and D.H. Bromwich.  Decadal variability of the ENSO teleconnection to the high-latitude South Pacific governed by coupling with the Southern Annular Mode.  J. Climate, 19, 979-997.

2005 Bertler, N.A.N., P.J. Barrett, P.A. Mayewski, R.L. Fogt, K.J. Kreutz, and J. Shulmeister.  Reply to comment by Doran et al. on “El Niño suppresses Antarctic warming.”  Geophys. Res. Lett., 32, L07707, doi: 10.1029/2005GL022595.

2004 Bromwich, D.H., and R.L. Fogt.  Strong trends in the skill of the ERA-40 and NCEP / NCAR reanalyses in the high and middle latitudes of the Southern Hemisphere, 1958-2001. J. Climate, 17, 4603-4619.

2004 Bertler, N.A.N., P.J. Barrett, P.A. Mayewski, R.L. Fogt, K.J. Kreutz, and J. Shulmeister.  El Niño suppresses Antarctic warming.  Geophys. Res. Lett., 31, L15207, doi:10.1029/2004GL020749.



Other Publications

2008

Fogt, R.L., D.H. Bromwich, and K.M. Hines, 2008:  Recent SAM and ENSO teleconnections for Antarctica.  US CLIVAR Variations, 6 (1), 4-6.

2007

Fogt, R.L., 2007:  Investigation of the Southern Annular Mode and the El Niño – Southern Oscillation Interactions.  Ph.D. Dissertation, Atmospheric Sciences Program, Department of Geography, The Ohio State University, 212 pp.

Bromwich, D.H., R.L. Fogt, K.I. Hodges, and J.E. Walsh, 2007:  A tropospheric assessment of contemporary global reanalyses in the polar regions.  In preprints of the 87th Annual Conference of the American Meteorological Society, San Antonio, TX, 6 pp.

2006

Bromwich, D.H. and R.L. Fogt, 2006:  An assessment of contemporary global reanalyses in the polar regions.  In Proceedings of the ECMWF / GEO Workshop on Atmospheric Re-Analyses, Reading, UK, 49-54.

Fogt, R.L., and D.H. Bromwich, 2006:  The AMPS pseudo satellite product.  In preprints of the Antarctic Meteorological Observation, Modeling, and Forecasting Workshop, Boulder, CO, 4 pp.

Fogt, R.L., G. E. Vázquez, and D.H. Bromwich, 2006:  AMPS precipitable water vapor comparisons with GPS observations in the McMurdo region. In preprints of the Antarctic Meteorological Observation, Modeling, and Forecasting Workshop, Boulder, CO, 4 pp.

2005

Fogt, R.L., and D.H. Bromwich, 2005:  Decadal variability of the Antarctic-ENSO teleconnection and its association with the Southern Annular Mode.  CLIVAR Exchanges, 10 (4), 4.

Fogt, R.L., and D.H. Bromwich, 2005:  An evaluation of clouds forecast by AMPS.  In preprints of the Joint annual meetings of the Antarctic Automatic Weather Station, Antarctic Meteorological Research Center, and the Antarctic Mesoscale Prediction System (AMPS), Columbus, OH, 1 pp.

Fogt, R.L., and D.H. Bromwich, 2005:  Strong trends in the skill of the ERA-40 and NCEP / NCAR reanalyses in the high and middle latitudes of the Southern Hemisphere, 1958-2001.  In preprints of the 8th Conference on Polar Meteorology and Oceanography, San Diego, CA.

Fogt, R.L., and D.H. Bromwich, 2005:  Decadal variability of the ENSO teleconnection to the South Pacific governed by coupling with the Antarctic Oscillation.  In preprints of the 8th Conference on Polar Meteorology and Oceanography, San Diego, CA.

2004

Fogt, R.L., D.H. Bromwich, K.M. Hines, Z. Guo, and J.F. Carrasco, 2004:  Strong ENSO Variability in the Drake Passage in the 1990s.  In preprints of the 7th Conference on Polar Meteorology and Oceanography, Hyannis, MA.

2003

Fogt, R.L., 203:  Decadal variability of the ENSO teleconnection to the South Pacific. M.S. Thesis, Atmospheric Sciences Program, Department of Geography, The Ohio State University, 135 pp.



Conference and Workshop Contributions

2011    Oral    (invited) The Ohio State University Department of Geography Colloquium Series, Columbus, OH.  “The weather-climate connection in recent Antarctic climate change.”

2011    Oral    (invited, keynote) 18th Annual West Antarctic Ice Sheet (WAIS) Workshop, Loveland, CO.  “Atmospheric control knobs on WAIS climate.”

2011    Oral      11th Conference on Polar Meteorology and Oceanography, Boston, MA.  “Seasonal zonal asymmetries in the Southern Annular Mode.”

2011    Oral    (invited) AMS Annual Student Conference, Seattle, WA. “How to write a grant: Tips and tricks for graduate school and beyond.”

2010    Oral    SCAR Open Science Conference, Buenos Aires, Argentina.  “Seasonal zonal asymmetries in the Southern Annular Mode.”

2010    Oral    SCAR Open Science Conference, Buenos Aires, Argentina.  “Understanding the SAM influence on the South Pacific ENSO teleconnection.”

2010    Oral      IPY Oslo Science Conference, Oslo, Norway.  “The Amundsen / Bellingshausen Seas Low: The underlying synoptic scale variability in the climatological mean position.”

2010    Oral    AMS Annual Meeting, Atlanta, GA.  “The role of transient eddies in modulating the high southern latitude ENSO teleconnection during strong SAM events.”

2009    Oral    10th Conference on Polar Meteorology and Oceanography, Madison, WI.  “South Pacific ENSO teleconnection variations linked to the SAM”. 

2009    Oral    9th International Conference on Southern Hemisphere Meteorology and Oceanography, Melbourne, Australia.  “Part II.  20th century of Southern Annular Mode variability from reconstructions, observations, and the IPCC AR4 models.”

2008    Poster   Boulder Department of Commerce Labs Postdoctoral Poster Symposium, Boulder, CO. "An investigation of long term Southern Annular Mode variability".

2008    Oral    New Generation of Polar Researchers Symposium, Colorado Springs, CO.  "Unraveling the past: A long-term investigation of Southern Annular Mode variability".   

2008    Poster    New Generation of Polar Researchers Symposium, Colorado Springs, CO.  "An investigation of long term Southern Annular Mode variability".   

2007    Oral    SCAR 2nd Workshop on High Latitude Climate Change, Seattle, WA.  "The role of tropical forcing on recent change in the Arctic and Antarctic".  Workshop report online: http://www.scar.org/publications/reports/32/Report_32.pdf

2007    Oral    The International Union of Geodesy and Geophysics (IUGG) XXIV, Perugia, Italy.   “Centennial Southern Annular Mode behavior in observations and IPCC AR4 models.”

2007    Oral    The Antarctic Meteorological Observation, Modeling, and Forecasting Workshop, Rome, Italy.  “Atmospheric moisture and cloud cover characteristics forecast by AMPS.”

2006    Oral    The Antarctic Meteorological Observation, Modeling, and Forecasting Workshop, Boulder, CO.  “The AMPS pseudo satellite product.”

2005    Oral    The Antarctic Automatic Weather Station – Antarctic Mesoscale Prediction System – Antarctic Meteorological Research Center Joint Annual Meeting, Columbus, OH.  “An evaluation of clouds forecast by AMPS.”

2003    Oral     7th Conference on Polar Meteorology and Oceanography, Hyannis, MA. 

                    “Decadal variability of the ENSO teleconnection to the South Pacific.”