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March 2014
Message 14

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[Met-jobs] Post-doctoral Position at IPSL / UPMC (France)

From "Roger Brugge" <r.brugge@reading.ac.uk>
To "met-jobs@lists.reading.ac.uk" <met-jobs@lists.reading.ac.uk>
Date Thu, 6 Mar 2014 10:13:19 +0000

Forwarded from CLIMLIST...

Title: Regional modeling of cloud-aerosols interactions in southern
West Africa

The University Pierre et Marie Curie and the Institut Pierre-Simon
Laplace offer a 2-year post-doctoral position to work on modeling of
cloud-aerosols interactions at regional scale in Southern West Africa.
The position is funded through the European FP7 project DACCIWA
(Dynamics-Aerosol-Chemistry-Cloud Interactions in West Africa).



Context:

The main objectives of DACCIWA are a comprehensive assessment of the
atmospheric composition of the region, impacts on human and ecosystem
health, the two-way coupling between aerosols, clouds and precipitation,
key meteorological processes, impacts on radiative forcing and the
regional scale circulation, and socio-economic implications of changes
in anthropogenic emissions, land use and climate.

The DACCIWA project proposes a major field campaign in southern West
Africa involving three European research aircrafts, two super-sites, new
space observations and numerical models operating at different
resolutions and levels of complexity in order to generate a benchmark
dataset that comprises the full chain of processes from surface-based
emissions to climate impacts. West Africa is ideal for such a study due
to its rich mix of aerosols and clouds, its rapid population and
economic growth, and its strong dependence on the notoriously difficult
to predict West African monsoon.

Description of work:

The first objective of the work to be conducted is to evaluate the
capability of the CHIMERE[1] <#_ftn1>model to reproduce the complex
summertime chemical landscape in the Southern West Africa, between the
Gulf of Guinea and ~12°N, from the background state over the Gulf of
Guinea (marine aerosols or mix between marine aerosols and biomass
burning aerosols from Central Africa) to the coastal strip of polluted
cities/megacities (Abdijan-Accra-Lome-Cotonou-Lagos) to the agricultural
areas further north to the forest areas. Dust aerosols transported from
the Sahel or remote Sahara are also expected to contribute to the
overall complexity of the chemical panorama. Modelled emissions (marine
– anthropogenic- soil – biogenic - dust) and concentration fields will
be evaluated against airborne measurements made during the three-week
aircraft campaign in Africa in June/July 2015.

A second objective of the work will be dedicated the validation of
modeledcloud condensation nuclei (CCN) properties (concentration,
size-distribution, etc…) in southern West Africa as a function of
pollution and meteorological conditions, using the airborne data.

A third objective will be to analyze of the retroactions between
anthropogenic, biomass burning and mineral dust aerosols and the life
cycle of clouds in the Gulf of Guinea region, from nocturnal stratus to
low Sc clouds to the formation of congestus Cu clouds in the afternoon.

The candidate will run simulations with both the WRF and CHIMERE models.
He/she also will contribute to the development of the CHIMERE model
through the improvement of the on-line coupling techniques currently
designed in the CHIMERE team.

Supervision team:The work will be conducted under the main supervision
of Laurent Menut from LMD[2] <#_ftn2> and Cyrille Flamant from LATMOS[3]
<#_ftn3>. The work will be performed in Laboratoire de Météorologie
Dynamique (LMD), Ecole Polytechnique, 91128 Palaiseau Cedex – France

Experience: The applicant should have a PhD in environmental sciences
or similar experience.He/she will have experience with numerical
modeling of the Earth system based on global or regional model. He/she
also have experience with handling large datasets. Knowledge in computer
programming (Shell, Unix, Fortran, awk) is highly desirable. The
applicant publication record should show a majority of papers published
in English in top ranking journals.



Duration and salary: The post-doctorate will be recruited for 24
months with a net monthly salaryaround 2000 euros, commensurate with
experience. This includes social services and healthinsurance.



Contact for applications:Applications should include a CV (with a list
of peer-reviewed publications), a statement of research interestsand the
names of at least two references including e-mail addresses and
telephone numbers.

Applications should be submitted by e-mail to Cyrille Flamant
(cyrille.flamant@latmos.ipsl.fr <mailto:cyrille.flamant@latmos.ipsl.fr>)
and Laurent Menut (menut@lmd.polytechnique.fr
<mailto:menut@lmd.polytechnique.fr>) before 31 March 2014.


------------------------------------------------------------------------

[1] <#_ftnref1>Menut L, B. Bessagnet, D. Khvorostyanov, M. Beekmann, N.
Blond, A. Colette, I. Coll, G. Curci, G. Foret, A. Hodzic, S. Mailler,
F. Meleux, J.L. Monge, I. Pison, G. Siour, S. Turquety, M. Valari, R.
Vautard and M.G. Vivanco, 2013, CHIMERE 2013: a model for regional
atmospheric composition modelling, Geoscientific Model Development, 6,
981-1028, doi:10.5194/gmd-6-981-2013.
http://www.geosci-model-dev.net/6/981/2013/gmd-6-981-2013.html

[2] <#_ftnref2>Laboratoire de Météorologie Dynamique(
http://www.lmd.jussieu.fr/)

[3] <#_ftnref3>Laboratoire Atmosphères, Milieux, Observations
Spatiales(http://www.latmos.ipsl.fr/)




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