[Met-jobs] Announcement for a 2-year post-doctoral position in aerosol modeling in the region of the Asian Monsoon Anticyclone at LPC2E/CNRS – University of Orleans (France)

As part
of the VOLTAIRE Labex managed by the University of Orleans
applications are
invited for a 2-year post-doctoral research position to carry
out
climate-chemistry modelling studies of aerosols linked to the
Asian Tropopause
Aerosol Layer (ATAL) in the monsoon anticyclone.

The post
holder will carry out 3-D simulations of the aerosol cycle in
the Upper
Troposphere/Lower Stratosphere over the Asian region using the WACCM (Whole Atmosphere
Community Climate Model) model
coupled with aerosol modules CARMA (Community Aerosol and
Radiation Model for
Atmospheres) and MAM7 (Modal Aerosol Model), through the CESM
(Community Earth
System Model) implementation.

Using up‐to‐date coupled anthropogenic and natural
emissions inventories, the study
will focus on the formation of the ATAL, the main region sources
contributing
to the aerosol budget (especially
from India and remote sources in Indonesia, Malaysia and
China) using tagged
emission or emission masking techniques, the main aerosols
(sulfates, SOA, POA)
characterizing its composition (e.g. pollution, biomass burning,
sporadic
volcanic eruptions), its large scale impact and its multi‐year evolution. Such experiments will be
conducted on case studies in
relation with the summer 2017 aircraft campaign from the
StratoClim European
project, the recent and future balloon soundings of aerosols,
and over multi‐year records.

The direct impact of
radiative forcing of the ATAL on
the regional and global climate, as well as its indirect
radiative forcing by
the influence of formation processes and optical properties of
cirrus clouds will
be studied. The radiative heating rates in the TTL(Tropical
Tropopause Layer)
associated with the ATAL and their role in influencing vertical
dynamics and
TTL crossing will be also investigated.

Projections to investigate
the future evolution of the
ATAL will be also produced, using different future emissions
scenarios.

Workplace is Laboratoire de Physique et
Chimie de
l’Environnement et de l’Espace (LPC2E/CNRS), Orleans, France. Regular visits to Laboratoire de Météorologie Dynamique
(LMD-Ecole Normale
Supérieure, Paris) co-supervising the hired post-doc are
planned. The applicant will also
interact with a team in Laboratoire
d’Aérologie (Toulouse, France) who will provide results from
mesoscale simulations
with the Meso-NH model explicitly representing convective
clouds.

The net
monthly salary based on the French
academic scale will depend upon experience, from about 2000 € to
3100 €.
Holiday entitlement is 45 days plus public holidays. The post is
full time,
fixed term for 24 months preferably starting on September 2017
or as soon as
practicable thereafter.

Desired
skills and experience:

Interested candidates
must have: 

·        
PhD
in a relevant field (e.g. atmospheric
chemistry, microphysics, meteorology)

·        
Programming
experience (e.g. IDL,
PYTHON, MATLAB, FORTRAN)

·        
Ability
to work independently
while contributing to a team effort

·        
Very
good communication skills
in English, both oral and written

·        
Interest
in atmospheric aerosol
processes, in situ data and climate monitoring

Preference
will be
given to candidates
with knowledge of global/regional
circulation models or chemistry transport models.

Applications
consisting of a CV,
list of publications, letter of motivation (1 page max), and
contact details of
two referees (or directly supporting letters) should be sent to:

Dr
Gwenaël BERTHET,
LPC2E/CNRS, Orléans: gwenael.berthet@cnrs-orleans.fr

Dr Fabrice JEGOU,
LPC2E/CNRS,
Orléans: fabrice.jegou@cnrs-orleans.fr

Dr Pasquale
SELLITTO, LMD-ENS,
Paris: psellitto@lmd.ens.fr

About
the workplaces:

LPC2E has an
internationally recognized expertise in
the development of optical platforms and instruments dedicated
to the
characterization of the atmospheric composition from the ground
to the high
atmosphere. On a regular basis, these competences have resulted
in
collaborations with European scientists needing the use of the
LPC2E
observation platforms and instruments/data for aerosols and
chemical species.
LPC2E has long experience in the study of processes controlling
the UTLS region
in terms of chemical composition and aerosol content at all
latitudes through
in situ experiments but also using model development and 3-D
simulations from
local to global scales.

The central research topic
of LMD is the Earth
Climate, its dynamics and future evolution. For this purpose,
LMD has developed
the AGCM LMDz, which is today the atmospheric component of the
IPSL ESM. In the
near future (next 4 years), the tasks at LMD will be focused on
the analysis of
the climate evolution, the anthropogenic influence on the
climate, and on the
physics dynamics of the geophysical fluids and of the earth
surface. The
present application, by its large contribution to the modelling
efforts at LMD
as well as by its theoretical aspects entirely fits within the
LMD’s scientific
topics. LMD enjoys a quite unique experience both in satellite
remote sensing
and atmospheric modelling, from process to climate scale.

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