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The effect of sampling effort on estimates of methane ebullition from peat (2017)
Journal Article
Ramirez, J. A., Baird, A. J., & Coulthard, T. J. (2017). The effect of sampling effort on estimates of methane ebullition from peat. Water Resources Research, 53(5), 4158-4168. doi:10.1002/2017wr020428

© 2017. American Geophysical Union. All Rights Reserved. We investigated the effect of sample size and sampling duration on methane bubble flux (ebullition) estimates from peat using a computer model. A field scale (10 m), seasonal ( > 100 days) simu... Read More

The effect of pore structure on ebullition from peat (2016)
Journal Article
Ramirez, J. A., Baird, A. J., & Coulthard, T. J. (2016). The effect of pore structure on ebullition from peat. Journal of Geophysical Research: Biogeosciences, 121(6), (1646-1656). doi:10.1002/2015jg003289. ISSN 2169-8953

The controls on methane (CH₄) bubbling (ebullition) from peatlands are uncertain, but evidence suggests that physical factors related to gas transport and storage within the peat matrix are important. Variability in peat pore size and the permeabilit... Read More

Hyper-resolution mapping of regional storm surge and tide flooding: comparison of static and dynamic models (2016)
Journal Article
Ramirez, J. A., Lichter, M., Coulthard, T. J., & Skinner, C. (2016). Hyper-resolution mapping of regional storm surge and tide flooding: comparison of static and dynamic models. Natural hazards, 82(1), 571-590. doi:10.1007/s11069-016-2198-z

Storm tide (combination of storm surge and the astronomical tide) flooding is a natural hazard with significant global social and economic consequences. For this reason, government agencies and stakeholders need storm tide flood maps to determine pop... Read More

Hyper-resolution mapping of regional storm surge and tide flooding: comparison of static and dynamic models (2016)
Journal Article
Ramirez, J. A., Lichter, M., Coulthard, T. J., & Skinner, C. (2016). Hyper-resolution mapping of regional storm surge and tide flooding: comparison of static and dynamic models. Natural hazards, 82(1), 571-590. doi:10.1007/s11069-016-2198-z

Storm tide (combination of storm surge and the astronomical tide) flooding is a natural hazard with significant global social and economic consequences. For this reason, government agencies and stakeholders need storm tide flood maps to determine pop... Read More

Ebullition of methane from peatlands: does peat act as a signal shredder? (2015)
Journal Article
Ramirez, J. A., Baird, A. J., Coulthard, T. J., & Waddington, J. M. (2015). Ebullition of methane from peatlands: does peat act as a signal shredder?. Geophysical research letters, 42(9), (3371-3379). doi:10.1002/2015gl063469. ISSN 0094-8276

Bubbling (ebullition) of greenhouse gases, particularly methane, from peatlands has been attributed to environmental forcings, such as changes in atmospheric pressure. However, observations from peat soils suggest that ebullition and environmental fo... Read More

Were rivers flowing across the Sahara during the last interglacial? Implications for human migration through Africa. (2013)
Journal Article
Ramirez, J. A., Bruecher, T., Coulthard, T. J., Rogerson, M., Barton, N., & Brücher, T. (2013). Were rivers flowing across the Sahara during the last interglacial? Implications for human migration through Africa. PloS one, 8(9), (0-0). doi:10.1371/journal.pone.0074834. ISSN 1932-6203

Human migration north through Africa is contentious. This paper uses a novel palaeohydrological and hydraulic modelling approach to test the hypothesis that under wetter climates c.100,000 years ago major river systems ran north across the Sahara to... Read More

Vertical density gradient in the eastern North Atlantic during the last 30,000 years (2011)
Journal Article
Ramirez, J., Rogerson, M., Bigg, G. R., & Rohling, E. J. (2012). Vertical density gradient in the eastern North Atlantic during the last 30,000 years. Climate Dynamics, 39(3-4), (589-598). doi:10.1007/s00382-011-1148-4. ISSN 0930-7575

Past changes in the density and momentum structure of oceanic circulation are an important aspect of changes in the Atlantic Meridional Overturning Circulation and consequently climate. However, very little is known about past changes in the vertical... Read More