Bob Marsh

Ocean Modelling and Forecasting (254/24),
National Oceanography Centre, Southampton
European Way
Southampton
SO14 3ZH. UK.

Tel: +44 (0)23 8059 6214,
Fax: +44 (0)23 8059 6400,
Email: rma@noc.soton.ac.uk

The powerpoint presentation for my 2008 public lecture at "Ocean and Earth Day" is here: openday_climate_2008.ppt

The powerpoint presentation for my presentation at "Effects of Climate Change on the World's Oceans" (May 19-23, 2008, Gijon, Spain) is here: Gijon08_Marsh.ppt

A useful schematic representing the MOC is here: phd_marsh_josey.jpg

Movies of upper 500 m heat content anomalies for 1958-2001 from our latest NEMO simulation, prepared by Alexis Auger during an internship at NOCS in summer 2008, are available here: Tropical Pacific, enso.mov; North Atlantic na.mov; Drake Passage, dp.mov; Agulhas Retroflection & Leakage, ag.mov; Tropical Atlantic, ta.mov; North Pacific, np.mov

My current research interests and some selected pulications are listed below. Further details of some topics can be found using the menu on the left. A complete list of publications is given here, and a full C.V. can be found here

Surface Fluxes, Water Masses and Circulation in the North Atlantic

Marsh, R., de Cuevas, B. A., Coward, A. C., Bryden, H. L., and M. Alvarez (2005). Thermohaline circulation at three key sections in the North At lantic over 1985-2002. Geophys. Res. Lett., 32, L10604, doi:10.1029/2004GL022281. pdf icon PDF version

Marsh. R., de Cuevas, B. A., Coward, A. C., Nurser, A. J. G., and S. A. Josey (2005). Water mass transformation in the North Atlantic over 1985-2002 simulated in an eddy-permitting model. Ocean Science, 1, 127-144. Online version

Josey, S. A., and R. Marsh (2005). Surface freshwater flux variability and recent freshening of the North Atlantic in the eastern subpolar gyre. J . Geophys. Res., 110, C05008, doi:10.1029/2004JC002521 Online version

Stability of the Thermohaline Circulation

Rahmstorf, S., Crucifix, M., Ganopolski, A., Goosse, H., Kamenkovich, I., Knutti, R., Lohmann, G., Marsh, R., Mysak, L. A., Wang, Z. , and A. Weaver (2005). Thermohaline circulation hysteresis: a model intercomparison. Geophys. Res. Lett., 32, L23605 10.1029/2005GL023655. pdf iconPDF version

Marsh, R., Yool, A., Lenton, T. M., Gulamali, M. Y., Edwards, N. R., Shepherd, J. G., Krznaric, M., Newhouse, S. and S. J. Cox (2004). Bistability of the thermohaline circulation identified through comprehensive 2-parameter sweeps of an efficient climate model. Clim. Dyn., 23, 761-777.

Developing Earth System Models

Cameron, D. R., Lenton, T. M., Ridgwell, A. J., Shepherd, J. G., Marsh, R., and A. Yool (2005). A factorial analysis of the marine carbon cycle controls on atmospheric CO2. Global Biogeochemical Cycles, 19, GB4027, doi:10.1029/2005GB002489. Online version

Edwards, N. R. and R. Marsh (2005). Uncertainties due to transport-parameter sensitivity in an efficient 3-D ocean-climate model. Clim. Dyn., 24, 415-433.

Hargreaves, J. C., Annan, J. D., Edwards, N. R. and R. Marsh (2004). An efficient climate forecasting method using an intermediate complexity Earth system model and the ensemble Kalman Filter. Clim. Dyn., 23, 745-760.

Paleoclimate Modelling

Rohling, E. J., Marsh, R., Wells, N. C., Siddall, M., and N. R. Edwards (2004). Similar meltwater contributions to glacial sea level changes from Antarctic and northern ice sheets. Nature, 430, 1016-1021. Online version

Marsh, R., Smith, M. P. L. M., Rohling, E. J., Lunt, D. J., Lenton, T. M., Williamson, M. S., and A. Yool (2006). Modelling ocean circulation, climate and oxygen isotopes in the ocean over the last 120,000 years. Climate of the Past Discussion s, 2, 657-709. Online version