|
I am a research scientist in the Marine Systems Modelling group, National Oceanography Centre.
Research¶
The main focus of my research is to improve our understanding of the mean state and variability of the ocean and climate system. I use computer models and observational datasets, develop models and model configurations, and I am interested in understanding the uncertanties and errors associated with the models and the way they are used.
Ocean Circulation¶
RAPID-AMOC¶
is a transatlantic monitoring system that has provided continuous observations of the meridional overturning circulation since 2004. I have worked on numerous modelling projects in support of RAPID since 2006.
Some of my relevant papers:
Mechanisms for Late 20th and Early 21st Century Decadal AMOC Variability Alex Megann, Adam Blaker, Simon Josey, Adrian New, Bablu Sinha, 2021, Journal of Geophysical Research - Oceans - Article
The accuracy of estimates of the overturning circulation from basin-wide mooring arrays B. Sinha, D.A. Smeed, G. McCarthy, B.I. Moat, S.A. Josey, J.J.-M. Hirschi, E. Frajka-Williams, A.T. Blaker, D. Rayner, G. Madec, 2018, Progress In Oceanography - Article
Major variations in subtropical North Atlantic heat transport at short (5 day) timescales and their causes B. I. Moat, S. A. Josey, B. Sinha, A. T. Blaker, D. A. Smeed, G. D. McCarthy, W. E. Johns, J. J.‐M. Hirschi, E. Frajka‐Williams, D. Rayner, A. Duchez, A. C. Coward, 2016, Journal of Geophysical Research - Oceans - Article
Historical analogues of the recent extreme minima observed in the Atlantic meridional overturning circulation at 26°N Adam T. Blaker, Joël J.-M. Hirschi, Gerard McCarthy, Bablu Sinha, Sarah Taws, Robert Marsh, Andrew Coward, Beverly de Cuevas, 2014, Climate Dynamics - Article
Near Inertial Waves¶
have been a research interest of mine since I first noticed these striking features in the ocean simulations I was using.
Some of my relevant papers:
The Atlantic Meridional Overturning Circulation in High‐Resolution Models Joël J.‐M. Hirschi, Bernard Barnier, Claus Böning, Arne Biastoch, Adam T. Blaker, Andrew Coward, Sergey Danilov, Sybren Drijfhout, Klaus Getzlaff, Stephen M. Griffies, Hiroyasu Hasumi, Helene Hewitt, Doroteaciro Iovino, Takao Kawasaki, Andrew E. Kiss, Nikolay Koldunov, Alice Marzocchi, Jennifer V. Mecking, Ben Moat, Jean‐Marc Molines, Paul G. Myers, Thierry Penduff, Malcolm Roberts, Anne‐Marie Treguier, Dmitry V. Sein, Dmitry Sidorenko, Justin Small, Paul Spence, LuAnne Thompson, Wilbert Weijer, Xiaobiao Xu, 2020, Journal of Geophysical Research - Oceans - Article
On the Near-Inertial Resonance of the Atlantic Meridional Overturning Circulation Florian Sévellec, Joël J.-M. Hirschi, Adam T. Blaker, 2013, Journal of Physical Oceanography - Article
Large near-inertial oscillations of the Atlantic meridional overturning circulation Adam T. Blaker, Joël J-M. Hirschi, Bablu Sinha, Beverly de Cuevas, Steven Alderson, Andrew Coward, Gurvan Madec, 2012, Ocean Modelling - Article
Equatorial planetary waves¶
Related to the NIWs are a special subset of equatorially trapped planetary waves.
Some of my relevant papers:
TAO data support the existence of large high frequency variations in cross-equatorial overturning circulation Lois Elizabeth Baker, Mike Bell, Adam Tobias Blaker, 2021, ESSOAr - Preprint
Wind-Driven Oscillations in the Meridional Overturning Circulation near the equator. Part I: Numerical Models Adam T. Blaker, Joël J.-M. Hirschi, Michael J. Bell, Amy Bokota, 2021, Journal of Physical Oceanography - Article
Wind-Driven Oscillations in Meridional Overturning Circulations near the Equator. Part II: Idealized Simulations Michael J. Bell, Adam T. Blaker, Joël J.-M. Hirschi, 2021, Journal of Physical Oceanography - Article
Ocean and Climate Modelling¶
NEMO¶
Much of my work evolves around use and development of the NEMO ocean modelling framework.
Some of my relevant papers:
NEMO–ICB (v1.0): interactive icebergs in the NEMO ocean model globally configured at eddy-permitting resolution R. Marsh, V. O. Ivchenko, N. Skliris, S. Alderson, G. R. Bigg, G. Madec, A. T. Blaker, Y. Aksenov, B. Sinha, A. C. Coward, J. Le Sommer, N. Merino, V. B. Zalesny, 2015, Geoscientific Model Development - Article
JMMP¶
is a collaborative programme between NERC and the Met Office, jointly developing configurations of the global ocean and sea-ice.
Some of my relevant papers:
UK Global Ocean GO6 and GO7: a traceable hierarchy of model resolutions David Storkey, Adam T. Blaker, Pierre Mathiot, Alex Megann, Yevgeny Aksenov, Edward W. Blockley, Daley Calvert, Tim Graham, Helene T. Hewitt, Patrick Hyder, Till Kuhlbrodt, Jamie G. L. Rae, Bablu Sinha, 2018, Geoscientific Model Development - Article
Spin‐up of UK Earth System Model 1 (UKESM1) for CMIP6 A. Yool, J. Palmiéri, C. G. Jones, A. A. Sellar, L. Mora, T. Kuhlbrodt, E. E. Popova, J. P. Mulcahy, A. Wiltshire, S. T. Rumbold, M. Stringer, R. S. R. Hill, Y. Tang, J. Walton, A. Blaker, A. J. G. Nurser, A. C. Coward, J. Hirschi, S. Woodward, D. I. Kelley, R. Ellis, S. Rumbold‐Jones, 2020, Journal of Advances in Modeling Earth Systems - Article
FORTE 2.0¶
is a coupled atmosphere-ocean general circulation model. I have developed and used FORTE for projects and studies since my PhD. It is now publicly accessible and open for anyone to use.
Some of my relevant papers:
FORTE 2.0: a fast, parallel and flexible coupled climate model Adam T. Blaker, Manoj Joshi, Bablu Sinha, David P. Stevens, Robin S. Smith, Joël J.-M. Hirschi, 2021, Geoscientific Model Development - Article
Error and uncertainty in numerical models¶
I have a keen in understanding and reducing errors and sources of uncertainty in numerical models and the simulations and projections they produce. Much of this work has been in collaboration with Danny Williamson
Some of my relevant papers:
Tuning without over-tuning: parametric uncertainty quantification for the NEMO ocean model Daniel B. Williamson, Adam T. Blaker, Bablu Sinha, 2017, Geoscientific Model Development - Article
Identifying and removing structural biases in climate models with history matching Daniel Williamson, Adam T. Blaker, Charlotte Hampton, James Salter, 2014, Climate Dynamics - Article
History matching for exploring and reducing climate model parameter space using observations and a large perturbed physics ensemble Daniel Williamson, Michael Goldstein, Lesley Allison, Adam Blaker, Peter Challenor, Laura Jackson, Kuniko Yamazaki, 2013, Climate Dynamics - Article
The climate system¶
I have a broad interest in all aspects of the climate system. My research ranges from fast ocean processes (waves) and teleconnections, to natural variability on seasonal to decadal timescales, and to longer term variability and trends such as those caused by global warming.
Some of my relevant papers:
Model‐Derived Uncertainties in Deep Ocean Temperature Trends Between 1990 and 2010 F. K. Garry, E. L. McDonagh, A. T. Blaker, C. D. Roberts, D. G. Desbruyères, E. Frajka‐Williams, B. A. King, 2019, Journal of Geophysical Research - Oceans - Article
Improved estimates of water cycle change from ocean salinity: the key role of ocean warming Jan D Zika, Nikolaos Skliris, Adam T Blaker, Robert Marsh, A J George Nurser, Simon A Josey, 2018, Environmental Research Letters - Article
Surface warming hiatus caused by increased heat uptake across multiple ocean basins S. S. Drijfhout, A. T. Blaker, S. A. Josey, A. J. G. Nurser, B. Sinha, M. A. Balmaseda, 2014, Geophysical Research Letters - Article
Publications¶
Interests¶
Aikido¶
I practise Aikido at the Southampton Shiseijan dojo (BAF affiliated) with the chief instructor Alex Megann (6 Dan). I teach classes on Friday evening approximately once per month.
Note
This page is under active development.