Lead research scientist in atmospheric data assimilation and certified Project Management Professional with 12+ years of experience developing and improving data assimilation components for atmospheric Reanalysis and Numerical Weather Prediction applications. Currently leading a multi-year effort at the NASA Global Modeling and Assimilation Office to produce the next generation climate reanalysis products. Expertise in variational and ensemble hybrid techniques with successful contributions to various upgrades of the GMAO operational system.
- Coupled atmosphere-ocean reanalysis - Error modeling and estimation - Weak-constraint variational data assimilation.
PhD Atmospheric and Oceanic Sciences
McGill University, Canada, 2010.
Project Management Professional Certification (PMP)
Project Management Institute, 2018
Master and Engineering Degree - meteorology
National School of Meteorology (Ecole Nationale de la Meteorologie - ENM), Toulouse, France, 2004.
Engineering Degree - meteorology
Hassania School of Civil Engineering (Ecole Hassania des Travaux publics - EHTP), Casablanca, Morocco. Joint degree with ENM, 2004.
Teaching Assistant at McGill University for various classes:
“Atmospheric and oceanic dynamics”, “Introduction to oceanic studies”, “Introduction to atmospheric studies”.
Fluent in Arabic and French.
Refereed
Akkraoui, A. E., N. C. Privé, R. M. Errico, and R. Todling. 2023. "The GMAO Hybrid 4D-EnVar Observing System Simulation Experiment framework."
Monthly Weather Review,
(In Press)
[10.1175/mwr-d-22-0254.1]
Privé, N., R. Errico, and A. El Akkraoui. 2022. "Investigation of the potential saturation of information from Global Navigation Satellite System Radio Occultation observations with an observing system simulation experiment."
Monthly Weather Review,
150
(6):
1293-1316
[10.1175/mwr-d-21-0230.1]
El Akkraoui, A., D. Carvalho, R. M. Errico, N. C. Privé, and M. G. Bosilovich. 2021. "The Role of Analysis Error in the Convergence of Reanalysis Production Streams in MERRA-2."
Monthly Weather Review,
149
(4):
1041-1054
[10.1175/mwr-d-20-0256.1]
Privé, N. C., R. M. Errico, R. Todling, and A. El Akkraoui. 2020. "Evaluation of adjoint‐based observation impacts as a function of forecast length using an Observing System Simulation Experiment."
Quarterly Journal of the Royal Meteorological Society,
qj.3909
[10.1002/qj.3909]
El Akkraoui, A., Y. Tremolet, and R. Todling. 2013. "Preconditioning of variational data assimilation and the use of a bi-conjugate gradient method."
Q.J.R. Meteorol. Soc.,
139
(672):
731-741
[10.1002/qj.1997]
Akkraoui, A. E., and P. Gauthier. 2010. "Convergence properties of the primal and dual forms of variational data assimilation."
Quarterly Journal of the Royal Meteorological Society,
136
(646):
107-115
[10.1002/qj.545]
El Akkraoui, A., P. Gauthier, S. Pellerin, and S. Buis. 2008. "Intercomparison of the primal and dual formulations of variational data assimilation."
Quarterly Journal of the Royal Meteorological Society,
134
(633):
1015-1025
[10.1002/qj.257]
Non-Refereed
Todling, R., and A. El Akkraoui. 2018. "The GMAO Hybrid Ensemble-Variational Atmospheric Data Assimilation System: Version 2.0."
NASA/TM-2018-104606
50:
184pp
[Full Text (Link)]
Errico, R. M., N. C. Prive, D. Carvalho, et al. 2017. "Description of the GMAO OSSE for Weather Analysis Software Package: Version 3."
NASA Technical Report Series on Global Modeling and Data Assimilation, NASA/TM-2017-104606
48:
156 pp.
[Full Text (Link)]
Refereed
Akkraoui, A. E., N. C. Privé, R. M. Errico, and R. Todling. 2023. "The GMAO Hybrid 4D-EnVar Observing System Simulation Experiment framework."
Monthly Weather Review
(In Press)
[10.1175/mwr-d-22-0254.1]
Privé, N., R. Errico, and A. El Akkraoui. 2022. "Investigation of the potential saturation of information from Global Navigation Satellite System Radio Occultation observations with an observing system simulation experiment."
Monthly Weather Review
150
(6):
1293-1316
[10.1175/mwr-d-21-0230.1]
El Akkraoui, A., D. Carvalho, R. M. Errico, N. C. Privé, and M. G. Bosilovich. 2021. "The Role of Analysis Error in the Convergence of Reanalysis Production Streams in MERRA-2."
Monthly Weather Review
149
(4):
1041-1054
[10.1175/mwr-d-20-0256.1]
Privé, N. C., R. M. Errico, R. Todling, and A. El Akkraoui. 2020. "Evaluation of adjoint‐based observation impacts as a function of forecast length using an Observing System Simulation Experiment."
Quarterly Journal of the Royal Meteorological Society
qj.3909
[10.1002/qj.3909]
El Akkraoui, A., Y. Tremolet, and R. Todling. 2013. "Preconditioning of variational data assimilation and the use of a bi-conjugate gradient method."
Q.J.R. Meteorol. Soc.
139
(672):
731-741
[10.1002/qj.1997]
Akkraoui, A. E., and P. Gauthier. 2010. "Convergence properties of the primal and dual forms of variational data assimilation."
Quarterly Journal of the Royal Meteorological Society
136
(646):
107-115
[10.1002/qj.545]
El Akkraoui, A., P. Gauthier, S. Pellerin, and S. Buis. 2008. "Intercomparison of the primal and dual formulations of variational data assimilation."
Quarterly Journal of the Royal Meteorological Society
134
(633):
1015-1025
[10.1002/qj.257]
Non-Refereed
Todling, R., and A. El Akkraoui. 2018. "The GMAO Hybrid Ensemble-Variational Atmospheric Data Assimilation System: Version 2.0."
NASA/TM-2018-104606
50
184pp
[Full Text (Link)]
Errico, R. M., N. C. Prive, D. Carvalho, et al. 2017. "Description of the GMAO OSSE for Weather Analysis Software Package: Version 3."
NASA Technical Report Series on Global Modeling and Data Assimilation, NASA/TM-2017-104606
48
156 pp.
[Full Text (Link)]
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