I am working on Atmosphere-Ocean interactions and the basic physics of oceanic and atmospheric circulations. I enjoy developing simple theoretical models and use them as guides for the analysis of observational records and outputs from coupled climate models simulations.

For the Raymond Hide meeting held in 30 April 2018 at the Royal Astronomical Society, please go here
For the meeting on high res air-sea interactions held at Imperial on 25-26 February 2019, please go here

Submitted papers Link
A new model for steric sea level variability (with Peter Kowalski, submitted to Oce. Mod.)
Recent published papers Link
Czaja, A., C. Frankignoul, S. Minobe and B. Vanniere, 2019: Simulating the Midlatitude Atmospheric Circulation: What Might We Gain From High-Resolution Modeling of Air-Sea Interactions?, Current Climate Change Report.
Cobb, A. and A. Czaja, 2019: Mesoscale signature of the NAO and its interaction with the ocean, Geophys. Res. Let.
Wolf, G., A. Czaja, D. J. Brayshaw, N. Klingaman, 2019: Connection between sea surface anomalies and quasi-stationary waves, J. Clim.
Liang, M., A. Czaja, R. Graversen and R. Tailleux, 2018: Poleward energy transport: is the standard definition physically relevant at all times scales? Climate Dynamics.
Wolf, G., D. J. Brayshaw, N. Klingaman and A. Czaja, 2018: Quasi-stationary waves and their impact on European weather and extreme events, Quart. J. Roy. Met. Soc., doi: 10.1002/qj.3310.
Hewitt, H. T., M. J. Bell, E. P. Chassignet, A. Czaja, D. Ferreira, S. M. Griffies, P. Hyder, J. L. McClean, A. L. New, M. J. Roberts, 2017: Will high-resolution global ocean models benefit coupled predictions on short-range to climate timescales?, Ocean Modelling, 120, 120-136.
Sheldon, L., A. Czaja, B. Vanniere, C. Morcrette, B. Sohet, M. Casado and D. Smith, 2017: A warm path to Troposphere - Gulf Stream interactions, Tellus, A: Dynamic Meteorology and Oceanography, 69:1, 1299397.
Parfitt, R., A. Czaja and Hyodae Seo, 2017: A simple diagnostic for the detection of atmospheric fronts, Geophys. Res. Let., 44, doi:10.1002/2017GL073662.
Vanniere, B., A. Czaja, H. Dacre and T. Woollings, 2017: A cold path for Stream - troposphere connection, J. Climate, 30, 1363-1379.
A simple diagnostic for the detection of atmospheric fronts (with Rhys Parfitt and Hyodae Seo, Geophys. Res. Let., 2017).
The impact of SST resolution change in the ERA-Interim reanalysis on wintertime Gulf Stream frontal air-sea interaction (with Rhys Parfitt and Young-Oh Kwon, Geophys. Res. Let., 2017).
All publications
Notes and Models
Summer schools, workshops and other Link
Notes for the Atmospheric Physics course at Imperial. Answers to problems can be found here for Chapter 1, Chapter 2,Chapter 3, Chapter 4 and Chapter 5.
A consideration of the forcings of climate change using simple physics (discussion paper No2 of the Grantham Institute for Climate Change). The slides of the talk given on this topic at the Institute of Physics on 30 May 2012 can be found here .
Notes for the 2012 ECMWF workshop on seasonal prediction: does ocean-atmosphere coupling invigorate or damp the storm track?
Notes on symmetric instability
Notes for the 2008 Bjerknes lectures in Bergen: Ertel's PV, gyres and the thermohaline circulation.
Notes on midlatitude climate variability: PNA, NAO, annular modes and their interaction with the ocean circulation (MIT fall 2004).
Models Link
The Environmental Physics course's Two-Box Climate Model website
Label Link
- Coupling of oceanic and atmospheric heat transport in the Tropics, Clare Heaviside (now working at the Health Protection Agency)
- Thermohaline circulation and ocean-atmosphere interactions, Nicky Howe (now post-doc at ESSC in Reading)
- Climatic impact of the stratosphere in an aquaplanet coupled model (co-supervised with Prof J. Haigh), Jacob Cheung (now postdoc at the Met Office)
- Robust response of the ocean to global warming, Christopher Dancel (writing up)
- Air-sea interactions and ocean eddies, Ute Hausmann (writing up)
- Interior ocean eddies, winds and Rossby waves, Chris O'Reilly (3rd year)
- Cryospheric feedbacks on the thermohaline circulation, Gabriele Messori (2nd year)
- Air-sea interactions over western boundary currents, Rhys Parfitt (2nd year)
- Ocean-atmosphere coupling through moist convection, Luke Sheldon (1st year)
Label Link
- Space and Atmospheric Physics Group at Imperial
- Grantham Insitute for Climate Change
- ERA40 Atlas
- Physical Oceanography on-line, courtesy of Bob Stewart (TAMU)
- Website designed by Laurent Mery (merci Lolo!)
- Yakushima