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<p class="MsoNormal">Dear all,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We have a PhD position open for applications (deadline <span style="color:black">
30<sup>th</sup> of June) so please forward to your master students and other potential candidates.</span><o:p></o:p></p>
<p class="MsoNormal"><a href="https://tinyurl.com/UGOT-PhD3">https://tinyurl.com/UGOT-PhD3</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Topic: <span style="color:#484848;background:white">Atmospheric Chemistry (more info below and in the website:
</span><a href="https://tinyurl.com/UGOT-PhD3">https://tinyurl.com/UGOT-PhD3</a> )<o:p></o:p></p>
<p class="MsoNormal">Please forward to any potential applicants!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best regards,<o:p></o:p></p>
<p class="MsoNormal">Cheng Wu (main supervisor) and Mattias Hallquist (co-supervisor)<o:p></o:p></p>
<p class="MsoNormal" style="background:white"><span style="color:black;mso-fareast-language:SV">----------------------------------------------------------------<br>
Dr Cheng Wu and Professor Mattias Hallquist<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="color:black;mso-fareast-language:SV">Atmospheric Science, Department of Chemistry and Molecular Biology<br>
University of Gothenburg<br>
412 96 Gothenburg<br>
Sweden</span><span style="color:#212121;mso-fareast-language:SV"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE" style="color:#1F497D;mso-fareast-language:EN-GB"> </span><span lang="EN-US" style="mso-fareast-language:SV"><o:p></o:p></span></p>
<p style="margin:0cm;text-align:justify;background:white"><b><span style="color:black">Description:</span></b><span style="color:black"> The PhD position will have a research focus on developing a molecular-level understanding of key processes that are of importance
for the occurrence and properties of secondary organic aerosol and organic nitrates (ON). This project includes both fieldwork and laboratory experiments using high-resolution mass spectrometry, and to some extent chemical modelling. Specifically, the candidate
will<o:p></o:p></span></p>
<p style="margin:0cm;text-align:justify;background:white"><span style="color:black"><o:p> </o:p></span></p>
<ul style="margin-top:0cm" type="disc">
<li class="MsoNormal" style="color:black;text-align:justify;mso-list:l1 level1 lfo3;background:white">
<span style="mso-fareast-language:EN-GB">perform both ground-based and airborne observation with an unmanned aerial vehicle (UAV)-based sampling platform to detect chemicals for both urban and rural environments.<o:p></o:p></span></li><li class="MsoNormal" style="color:black;text-align:justify;mso-list:l1 level1 lfo3;background:white">
<span style="mso-fareast-language:EN-GB">perform laboratory experiments to constrain physiochemical processes responsible for the SOA and ONs’ formation and evolution<o:p></o:p></span></li></ul>
<p class="MsoNormal" style="margin-left:35.7pt;text-align:justify;text-indent:-17.85pt;mso-list:l1 level1 lfo3;background:white">
<![if !supportLists]><span style="font-size:10.0pt;font-family:Symbol;color:black;mso-fareast-language:EN-GB"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:black;mso-fareast-language:EN-GB">use the obtained knowledge from field observation and lab experiments in models to better assess how ONs influence regional air quality.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify;background:white"><span style="color:black;mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align:justify;background:white"><span style="color:black;mso-fareast-language:EN-GB">The PhD education includes the development of skills and knowledge in general tools applicable to the research. E.g. one will achieve detailed
knowledge within advanced mass spectrometry and data analysis using programming software such as of Python, MatLab, or similar. For mechanistic evaluation the candidate will use kinetic modelling for use in chemical transport models. Any pre-knowledge using
these tools are beneficial but not a requirement. The research topic is within atmospheric chemistry implying applicants would benefit from having a background in chemistry or alternatively within physics, geosciences, or environmental science.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify;background:white"><span style="color:black;mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p style="margin:0cm;background:white"><span style="color:#484848">We think the right candidate will fit in to our dynamic group and the Scandinavian way of doing excellent research!<o:p></o:p></span></p>
<p style="margin:0cm;background:white"><b><i><span style="color:#484848"><o:p> </o:p></span></i></b></p>
<p style="margin:0cm;background:white"><b><i><span style="color:#484848">Selected publications from our group:<o:p></o:p></span></i></b></p>
<p class="EndNoteBibliography" style="margin-bottom:0cm;text-align:justify"><b>Analysis of atmospheric particle growth based on vapor concentrations measured at the high-altitude GAW station Chacaltaya in the Bolivian Andes.</b> Heitto, A.,
<b>Wu, C.</b>*, Aliaga, D., Blacutt, L., Chen, X., Gramlich, Y., Heikkinen, L., Huang, W., Krejci, R., Laj, P., Moreno, I., Sellegri, K., Velarde, F., Weinhold, K., Wiedensohler, A., Zha, Q., Bianchi, F., Andrade, M., Lehtinen, K. E. J., Mohr, C., and Yli-Juuti,
T.: <a href="https://doi.org/10.5194/egusphere-2023-526">https://doi.org/10.5194/egusphere-2023-526</a>, 2023.<o:p></o:p></p>
<p class="EndNoteBibliography" style="margin-bottom:0cm;text-align:justify"><b><o:p> </o:p></b></p>
<p class="EndNoteBibliography" style="margin-bottom:0cm;text-align:justify"><b>A Four Carbon Organonitrate as a Significant Product of Secondary Isoprene Chemistry</b>, Tsiligiannis E., Wu R. R., Lee B., Salvador C. M., Priestley M., Carlsson P. T. M., Kang
S., Novelli A., Vereecken L., Fuchs H., Mayhew A. W., Hamilton J. F., Edwards P. M., Fry J. L., Brownwood B., Brown S. S., Wild R. J., Bannan T. J., Coe H., Allan J., Surratt J. D., Bacak A., Artaxo P., Percival C., Guo S., Hu M., Wang T., Mentel T. F., Thornton
J. A. and <b><i>Hallquist M</i></b>., <i>Geophys. Res. Lett., </i>49 (11), 2022<o:p></o:p></p>
<p class="EndNoteBibliography" style="margin-bottom:0cm;text-align:justify"><b><o:p> </o:p></b></p>
<p class="EndNoteBibliography" style="margin-bottom:0cm;text-align:justify"><b>Photolytically Induced Changes in Composition and Volatility of Biogenic Secondary Organic Aerosol from Nitrate Radical Oxidation during Night-to-day Transition.
</b>Wu, C., Bell, D., Graham, E. L., Haslett, S., Riipinen, I., Baltensperger, U., Bertrand, A., Giannoukos, S., Schoonbaert, J., El Haddad, I., Prevot, A. S. H., Huang, W., and Mohr, C., Atmos. Chem. Phys., 21, 14907–14925,
<a href="https://doi.org/10.5194/acp-21-14907-2021">https://doi.org/10.5194/acp-21-14907-2021</a>, 2021.<o:p></o:p></p>
<p class="EndNoteBibliography" style="margin-bottom:0cm;text-align:justify"><b><o:p> </o:p></b></p>
<p class="EndNoteBibliography" style="margin-bottom:0cm;text-align:justify"><b>Secondary organic aerosol reduced by mixture of atmospheric vapours,
</b>McFiggans G., Mentel T. F., Wildt J., Pullinen I., Kang S., Kleist E., Schmitt S., Springer M., Tillmann R., Wu C., Zhao D., Hallquist M., Faxon C., Le Breton M., Hallquist Å. M., Simpson D., Bergström R., Jenkin M. E., Ehn M., Thornton J. A., Alfarra M.
R., Bannan T. J., Percival C. J., Priestley M., Topping D. and Kiendler-Scharr A.,
<i>Nature, </i>565 (7741), 587-593, 2019<b> <o:p></o:p></b></p>
<p class="EndNoteBibliography" style="margin-bottom:0cm;text-align:justify"><b><o:p> </o:p></b></p>
<p class="EndNoteBibliography" style="margin-bottom:0cm;text-align:justify"><b>Gas to Particle Partitioning of Organic Acids in the Boreal Atmosphere,
</b>Lutz A., Mohr C., Le Breton M., Lopez-Hilfiker F. D., Priestley M., Thornton J. A. and Hallquist M.,
<i>ACS Earth and Space Chemistry</i>, 3 (7), 1279-1287, 2019<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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