skip to content

Atmospheric Chemistry Research Group

I am an NCAS Principal Research Associate in the Department, working at the Centre for Atmospheric Science.

I work with the United Kingdom Chemistry and Aerosols community chemistry-aerosol-climate model. This is based on the Met Office Unified Model, and is a collaboration between the Universities of Cambridge, Leeds, Oxford, and the Met Office.

I am also a member of NCAS-CMS and provide model support for UKCA on both ARCHER and MONSooN. If you require support please raise a ticket with the CMS Helpdesk, or if you would like to know more about UKCA in general, please email me, or browse through the UKCA wiki. This provides information about the model, the standard jobs that are available, publications using the model, and also a tutorial covering how to get started with the model and add in new chemistry, emissions, species etc.

Research Interests

I am interested in chemistry-climate interactions and Earth-system modelling. I joined the group to work on the QUEST Earth-System Model, and now work on the UKCA chemistry-aerosol-climate model, which is part of the UM and will form the chemistry and aerosol components of UK-ESM1, the next generation UK joint NERC-Met Office Earth-system model.

A lot of my past work has been on the development of a coupled atmosphere-ocean-chemistry model, using the MetUM atmosphere and NEMO/CICE, as covered in an NCAS research highlight. Recently I have also been involved with the CCMI project. The video below follows the evolution of the Total Ozone Column from 1960-2100 from one of our ensemble members.

As part of my work on model development I am interested in the coupling of UKCA to the Unified Model, as well as other sub-models. The diagram below shows the current couplings at MetUM version 8.5 to the UKCA model.

Teaching

I have developed a series of UKCA Tutorials. These tutorials are designed to be run in your own time, although I can also run a face-to-face tutorial which covers the contents. If you are interested in these tutorials, or would like me to run a session at your institution, please contact me.

Since 2015 UKCA training has been held in the Department, with the 2018 lectures recorded and available online. Details of future courses can be found on the NCAS website.

The image belows shows part of the emissions task - the regridding of emissions data from 0.5x0.5 degress to MetUM N96 resolution.

Publications

Evaluation of tropospheric ozone and ozone precursors in simulations from the HTAPII and CCMI model intercomparisons - a focus on the Indian subcontinent
ZQ Hakim, S Archer-Nicholls, G Beig, GA Folberth, K Sudo, N Luke Abraham, S Ghude, DK Henze, AT Archibald
– Atmospheric Chemistry and Physics
(2019)
19,
6437
Simulating the atmospheric response to the 11-year solar cycle forcing with the UM-UKCA model: the role of detection method and natural variability
EM Bednarz, AC Maycock, PJ Telford, P Braesicke, N Luke Abraham, JA Pyle
– Atmospheric Chemistry and Physics
(2019)
19,
5209
Improvements to stratospheric chemistry scheme in the UM-UKCA (v10.7) model: solar cycle and heterogeneous reactions
F Dennison, J Keeble, O Morgenstern, G Zeng, N Luke Abraham, X Yang
– Geoscientific Model Development
(2019)
12,
1227
Cloud impacts on photochemistry: Building a climatology of photolysis rates from the Atmospheric Tomography mission
SR Hall, K Ullmann, MJ Prather, CM Flynn, LT Murray, AM Fiore, G Correa, SA Strode, SD Steenrod, JF Lamarque, J Guth, B Josse, J Flemming, V Huijnen, N Luke Abraham, AT Archibald
– Atmospheric Chemistry and Physics
(2018)
18,
16809
Tropospheric ozone in CCMI models and Gaussian process emulation to understand biases in the SOCOLv3 chemistry–climate model
LE Revell, A Stenke, F Tummon, A Feinberg, E Rozanov, T Peter, N Luke Abraham, H Akiyoshi, AT Archibald, N Butchart, M Deushi, P Jöckel, D Kinnison, M Michou, O Morgenstern, FM O'Connor, LD Oman, G Pitari, DA Plummer, R Schofield, K Stone, S Tilmes, D Visioni, Y Yamashita, G Zeng
– Atmospheric Chemistry and Physics
(2018)
18,
16155
Using machine learning to build temperature-based ozone parameterizations for climate sensitivity simulations
P Nowack, P Braesicke, J Haigh, NL Abraham, J Pyle, A Voulgarakis
– Environmental Research Letters
(2018)
13,
104016
Using a Virtual Machine environment for developing, testing, and training for the UM-UKCA Composition-Climate Model, using Unified Model version 10.9 and above
NL Abraham, AT Archibald, P Cresswell, S Cusworth, M Dalvi, D Matthews, S Wardle, S Whitehouse
– Geoscientific Model Development
(2018)
11,
3647
Quasi-Newton methods for atmospheric chemistry simulations: implementation in UKCA UM vn10.8
E Esentürk, N Luke Abraham, S Archer-Nicholls, C Mitsakou, P Griffiths, A Archibald, J Pyle
– Geoscientific Model Development
(2018)
11,
3089
Estimates of ozone return dates from Chemistry-Climate Model Initiative simulations
SS Dhomse, D Kinnison, MP Chipperfield, RJ Salawitch, I Cionni, MI Hegglin, NL Abraham, H Akiyoshi, AT Archibald, EM Bednarz, S Bekki, P Braesicke, N Butchart, M Dameris, M Deushi, S Frith, SC Hardiman, B Hassler, LW Horowitz, RM Hu, P Jöckel, B Josse, O Kirner, S Kremser, U Langematz, J Lewis, M Marchand, M Lin, E Mancini, V Marécal, M Michou, O Morgenstern, FM O'Connor, L Oman, G Pitari, DA Plummer, JA Pyle, LE Revell, E Rozanov, R Schofield, A Stenke, K Stone, K Sudo, S Tilmes, D Visioni, Y Yamashita, G Zeng
– Atmospheric Chemistry and Physics
(2018)
18,
8409
Revisiting the Mystery of Recent Stratospheric Temperature Trends
AC Maycock, WJ Randel, AK Steiner, AY Karpechko, J Christy, R Saunders, DWJ Thompson, CZ Zou, A Chrysanthou, N Luke Abraham, H Akiyoshi, AT Archibald, N Butchart, M Chipperfield, M Dameris, M Deushi, S Dhomse, G Di Genova, P Jöckel, DE Kinnison, O Kirner, F Ladstädter, M Michou, O Morgenstern, F O'Connor, L Oman, G Pitari, DA Plummer, LE Revell, E Rozanov, A Stenke, D Visioni, Y Yamashita, G Zeng
– Geophysical Research Letters
(2018)
45,
9919
  • 1 of 6
  • >

Postdoctoral researcher

Telephone number

01223 748899

Email address