AOML
NOAA

National Oceanic and Atmospheric Administration

Atlantic Oceanographic and Meteorological Laboratory

Physical Oceanography Division

Gregory Foltz

Oceanographer

NOAA/AOML/PHOD
4301 Rickenbacker Causeway,
Miami, FL 33149, USA
Phone: (305) 361-4430
Gregory.Foltz@noaa.gov


Research Interests

  • Role of the ocean in intraseasonal to decadal variability of tropical climate.
  • Surface salinity and its connection to climate variability and the global water cycle.
  • Impact of African dust on coupled ocean-atmosphere variability in the tropical Atlantic.

Current Work


Gregory Foltz is a Principal Investigator of the PIRATA Northeast Extension, a joint AOML/PMEL project to observe and better understand climate fluctuations in the central and northeastern Tropical Atlantic. Foltz is involved with several other projects, including (1) The Atlantic Meridional Mode , (2) The contribution of the Saharan Air Layer to northern Atlantic Ocean temperatures, and (3) An evaluation of the three-dimensional structure of velocity in the central equatorial Atlantic. He is on the editorial board of several peer-reviewed climate research journals and a member of the Salinity Processes in the Upper Ocean Regional Study (SPURS) Sustained Observations working group.

Publications

Balaguru, K., S. Taraphdar, L. R. Leung, and G. R. Foltz, 2013: Hurricane-hurricane interactions in the Atlantic: The ocean pathway. Nature Geosci., under review.

Beal, L., V. Hormann, R. Lumpkin and G. R. Foltz, 2013: The response of the surface circulation of the Arabian Sea to monsoonal forcing. J. Phys. Oceanogr., in press.

Foltz, G.R, A.T. Evan, H.P. Freitag, S. Brown, and M.J. McPhaden, 2013: Dust accumulation biases in PIRATA shortwave radiation records. switches. J. Atmos. Ocean. Techn., 30(4), 810-824, doi:10.1175/JTECH-D-12-00169.1, in press. [pdf]

Foltz, G. R., C. Schmid and R. Lumpkin, 2013: Seasonal cycle of the mixed layer heat budget in the northeastern tropical Atlantic Ocean. J. Climate, in press.

McPhaden, M.J., and G.R. Foltz 2013: Intraseasonal variations in the surface layer of the central equatorial Indian Ocean: The importance of horizontal advection and vertical mixing. Geophysical Research Letters, 40(11):2737-2741, doi:10.1002/grl.50536. [pdf]

Bingham, F.M., G.R. Foltz, and M.J. McPhaden, 2012: Characteristics of the seasonal cycle of surface layer salinity in the global ocean. Ocean Sci., doi:10.5194/osd-8-2377-2011, in press. [pdf]

Evan, A.T., G.R. Foltz, and D. Zhang, 2012: Physical response of the tropical-subtropical North Atlantic Ocean to decadal-multidecadal forcing by African dust. J. Clim., 25:5817-5829, doi:10.1175/JCLI-D-11-00438. [pdf]

Foltz, G.R., M.J. McPhaden and R. Lumpkin, 2012: A strong Atlantic Meridional Mode event in 2009: the role of mixed layer dynamics. J. Clim., 25, 363-380, doi:10.1175/JCLI-D-11-00150.1. [pdf]

Hormann, V., R. Lumpkin, and G.R. Foltz, 2012: Interannual North Equatorial Countercurrent variability and its relation to tropical Atlantic climate modes. J. Geophys. Res., 117:C04035, doi:10.1029/2011JC007697. [pdf]

Perez, R. C., R. Lumpkin, W. E. Johns, G. R. Foltz, and V. Hormann, 2012: Interannual variations of Atlantic tropical instability waves. J. Geophys. Res., 117, C03011, doi:10.1029/2011JC007584. [pdf]

Wang, C., S. Dong, A. T. Evan, G.R. Foltz, and S.-K. Lee, 2012: Multidecadal covariability of North Atlantic sea surface temperature, African dust, Sahel rainfall and Atlantic hurricanes. J. Clim., 25:5404-5415, doi:10.1175/JCLI-D-11-00413.1 [pdf]

Evan, A.T., G.R. Foltz, D. Zhang, and D.J. Vimont, 2011: Influence of African dust on ocean-atmosphere variability in the tropical Atlantic. Nat. Geosci., DOI: 10.1038/NGEO1276 [pdf]

Foltz, G. R., and M. J. McPhaden, 2010: Abrupt equatorial wave-induced cooling of the Atlantic cold tongue in 2009. Geophys. Res. Lett., 37, L24605, doi:10.1029/2010GL045522.

Foltz, G. R., and M. J. McPhaden, 2010: Interaction between the Atlantic meridional and Nino modes. Geophys. Res. Lett., 37, L18604, doi:10.1029/2010GL044001.

Bingham, F. M., G. R. Foltz, and M. J. McPhaden, 2010: Seasonal cycles of surface layer salinity in the Pacific Ocean. Ocean Sci., 6, 775-787, doi:10.5194/os-6-775-2010.

Foltz, G. R., J. Vialard, P. Kumar B., and M. J. McPhaden, 2010: Seasonal mixed layer heat balance of the southwestern tropical Indian Ocean. J. Climate, 23, 947-965. McPhaden, M. J., G. R. Foltz, T. Lee, V. S. N. Murty, M. Ravichandran, G. A. Vecchi,

McPhaden, M. J., G. R. Foltz, T. Lee, V. S. N. Murty, M. Ravichandran, G. A. Vecchi, J. Vialard, J. D. Wiggert, and L. Yu, 2009: Ocean atmosphere interactions during cyclone Nargis. Eos, Trans. Amer. Geophys. Union, 88, 53-55.

Foltz, G. R., and M. J. McPhaden, 2009: Impact of barrier layer thickness on SST in the central tropical North Atlantic. J. Climate, 22, 285-299.

Foltz, G. R., and M. J. McPhaden, 2008: Trends in Saharan dust and tropical Atlantic climate during 1980-2006. Geophys. Res. Lett., 35, L20706, doi:10.1029/2008GL035042.

Vialard, J., G. R. Foltz, M. J. McPhaden, J. P. Duvel, and C. de Boyer Mont`egut, 2008: Strong Indian Ocean sea surface temperature signals associated with the Madden-Julian oscillation in late 2007 and early 2008. Geophys. Res. Lett., 35, L19608, doi:10.1029/2008GL035238.

Foltz, G. R., and M. J. McPhaden, 2008: Impact of Saharan dust on tropical North Atlantic SST. J. Climate, 21, 5048-5060.

Foltz, G. R., and M. J. McPhaden, 2008: Seasonal mixed layer salinity balance of the tropical North Atlantic Ocean. J. Geophys. Res., 113, C02013, doi:10.1029/2007JC004178.

Foltz, G. R., and M. J. McPhaden, 2006: The role of oceanic heat advection in the evolution of tropical North and South Atlantic SST anomalies. J. Climate, 19, 6122-6138.

Foltz, G. R., and M. J. McPhaden, 2006: Unusually warm sea surface temperatures in the tropical North Atlantic during 2005. Geophys. Res. Lett., 33, L19703, doi:10.1029/2006GL027394.

Foltz, G. R., and M. J. McPhaden, 2005: Mixed layer heat balance on intraseasonal time scales in the northwestern tropical Atlantic Ocean. J. Climate, 18, 4168-4184.

Foltz, G. R., and M. J. McPhaden, 2004: The 30-70 day oscillations in the tropical Atlantic. Geophys. Res. Lett., 31, L15205, doi:10.1029/2004GL020023.

Foltz, G. R., S. A. Grodsky, J. A. Carton, and M. J. McPhaden, 2004: Seasonal salt budget of the northwestern tropical Atlantic Ocean along 38W. J. Geophys. Res., 109, C03052, doi:10.1029/2003JC002111.

Foltz, G. R., J. A. Carton, and E. P. Chassignet, 2004: Tropical instability vortices in the Atlantic Ocean. J. Geophys. Res., 109, C03029, doi: 10.1029/2003JC001942.

Foltz, G. R., S. A. Grodsky, J. A. Carton, and M. J. McPhaden, 2003: Seasonal mixed layer heat budget of the tropical Atlantic Ocean. J. Geophys. Res., 108, 3146, doi:10.1029/2002JC001584.


[Other Publications:]

Foltz, G. R., M. J. McPhaden, T. Lee, G. C. Johnson, and M. Goes, 2012: The Tropical Ocean Observing System. U. S. IOOS Summit Community White Paper.

Foltz, G. R., 2008: Equatorial Countercurrent; Thermocline, in Philander, S. G. (Editor-in-Chief), Encyclopedia of Global Warming and Climate Change, Sage, Thousand Oaks, ISBN:9781412958783.

Foltz, G. R., and J. A. Carton, 2003: Latent Heat, Fusion, and Evaporation; Sun, Radiant Energy of, in Nybakken, J. (Editor-in-Chief), Encyclopedia of Oceanography and Marine Science, Fitzroy-Dearborn, New York.

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