Ocean circulation
Meridional Overturning Circulation and its variability
Global carbon cycle
Ocean heat and carbon uptake
Air-sea interactions and variability
gas-exchanges through the air-sea interface
Climate variability
Modeling
ocean and coupled ocean-atmosphere
General Circulation Models
Earth System Models
2/2018
-
Present
NASA Research Physical Scientist, 611
NASA,
Goddard Institute for Space Studies
2018
-
Present
Adjunct Associate Professor
Dept. of Applied Physics and Applied Mathematics, Columbia Univ., and NASA GISS,
New York
2009
-
2018
Research Scientist
Dept. of Applied Physics and Applied Mathematics, Columbia Univ., and NASA GISS,
New York
2006
-
2009
Research Scientist
Academy of Athens,
Greece
2003
-
2007
Postdoctoral Associate
Dept. of Applied Physics and Applied Mathematics, Columbia Univ., and NASA GISS,
New York
2001
-
2003
Postdoctoral Associate
Courant Institute of Mathematical Sciences, New York Univ.,
New York
1999
-
2001
Postdoctoral Associate
Univ. Miami and Los Alamos National Laboratory,
Florida
1992
-
1999
Research Scientist
Florida State University,
Florida
NASA-GISS ocean carbon cycle model
(in collaboration with Paul Lerner) adding new components, e.g. oxygen, evaluating carbon uptake, looking at variability at natural and perturbed modes
Subpolar N. Atlantic air-sea fluxes associated with mid-latitude cyclones and their effect on AMOC
(in collaboration with Bruno Tremblay, Joy Romanski and James Williams)
Ocean heat and carbon uptake the ocean and climate feedbacks
(in collaboration with John Marshall, MIT)
Modeling and Observations of Atmospheric Circulation,
Cloud and Aerosol Processes, Ocean Circulation and the Carbon Cycle
(APAM-GISS cooperative agreement, PI)
Machine learning and ocean carbon uptake
in collaboration wit Luke Gloege
Sea Level Change projects and impacts
Exoplanet research
Ph.D., Physical Oceanography, Florida State University, Tallahassee, Florida, 1999
M. Sc., Oceanography, University of Athens, Greece, 1992
B. A. Physics, University of Athens, Greece, 1989
Member of the NASA Earth Science Advisory Committee
