PostDoc in atmospheric chemistry with application in chemical ionisation mass spectromtery at the the University of Gothenburg - Deadline: 30/06/2018
Our atmospheric science constellation is unique in Sweden in that it takes a molecular approach to transport and reaction processes in the atmosphere. A unifying focus is the study of aerosols, with activities ranging from fundamental studies of chemical reactions on the molecular level, to applied work including field studies of atmospheric processes, their importance to current climate and air quality research. The research contributes to developments in the fields of colloidal chemistry, nanotechnology, medicine as well as development of traffic related chemistry and sustainable development in developing countries.
Subject area description
The aim of this project is to quantify, understand and provide tools to describe atmospheric oxidation of organic compounds. This oxidation is important to understand formation of secondary organic aerosol (SOA) but also the generally production of oxygenated compounds that can effect air quality both in outdoor and indoor environments. Aerosol particles are crucial components in any evaluation process regarding air quality and climate change. SOA represents a significant fraction of the tropospheric aerosol. Still, the current level of understanding of SOA processes is remarkably low compared to other processes in aerosol science, i.e. modelled SOA based on experimental findings and existing theory does not capture the variability of observed SOA loadings and often predicts far less SOA than observed. It has been indicated that biogenic SOA can be largely affected by anthropogenic pollutants, i.e. NO2, SO2 or organic compounds e.g. aromatics and aldehydes. The effect of anthropogenic pollutants may explain part of the discrepancy between models and field observations. Specifically, this project applies high resolution mass spectroscopy techniques for detailed analysis of gas and particle phase to elucidate chemical mechanisms of importance for atmospheric SOA. A specific aim is how to link SOA mechanisms to model developments for descriptions in air quality and climate models. The experiments will primarily be conducted using our high-resolution time-of-flight chemical-ionization mass spectrometer (http://www.atmos-meas-tech.net/7/983/2014/amt-7-983-2014.html) in combination with inlets separating particle and gas phase for characterization of organic compositions.
Research in atmospheric chemistry using high resolution mass spectrometry with chemical ionization. The experimental studies can be carried out both in our laboratory but primarily in the field (India) to study the emissions and secondary transformation of organic compounds in outdoor environments. In addition to work in Sweden one is expected to participate in our international collaboration projects, currently via a field campaign in India winter 2018/2019. The work involves a great deal of analysis and evaluation of measurement data for the understanding and quantification of atmospheric oxidation of organic substances.
Eligibility To qualify as a postdoctoral fellow, the applicant must have completed a Swedish doctoral degree or must have a foreign degree corresponding to a Swedish doctoral degree.
Preference will be given to candidates who have been awarded the degree no more than three years before the application deadline and who have not held a post-doc position within the same or similar subject area at the University of Gothenburg for more than one year. Applicants with a degree obtained earlier than the stipulated three years may be preferred if special reasons exists. Special reasons in this context include, but are not limited to, leave due to illness and parental leave.
A requirement is experience in mass spectroscopy with atmospheric application demonstrated by international publications in peer-reviewed journals and experimental work.
For further information:
- Regarding the position please contact Mattias Hallquist
Telefonnummer/Phone number: +46 (0)31 7869019
Göran Hilmersson, Head of Department +46 (0) 31-786 9022, firstname.lastname@example.org
How to apply
In order to apply for a position at the University of Gothenburg, you have to register an account in our online recruitment system. It is the responsibility of the applicant to ensure that the application is complete in accordance with the instructions in the job advertisement, and that it is submitted before the deadline. The selection of candidates is made on the basis of the qualifications registered in the application. Any documents that are not available in electronic format should be mailed to:
link : https://www.gu.se/english/about_the_university/job-opportunities/vacancies-details/?id=2404
A full-time CEA permanent position is available at LSCE (« Experimental Atmospheric Chemistry » group) on the study of atmospheric aerosols - Dead-line : 22/05/2018
The researcher will study the chemical composition of aerosols in various environments (urban, forested, marine) by initiating and participating to projects in this thematic, in close link with the other activities of the group (Volatile Organic Compounds characterization and bio-aerosols study).
Especially, the researcher will be the scientist responsible for the aerosols measurements at the LSCE-SIRTA station at Saclay, currently belonging to the H2020 ACTRIS European network. He/She will actively participate to its integration to the future research infrastructure ACTRIS-RI planned for 2020, both for observations and the associated calibration center. He/She will be responsible of the data analysis in order to document, interpret and valorise the pluri-annual data of our observatory, in close collaboration with the European network.
- To develop projects to study aerosols in various environments in relation with their physical and chemical properties in order to characterize their sources, their processes in the atmosphere and their impact at the local and regional scale on air quality and climate.
- To develop experimental projects in relation with the scientific questions
- To coordinate (and participate to) the field campaigns associated to the initiated projects
- To develop and apply numerical tools to identify/quantify aerosols sources in the studied environments and understand their concentrations in the air
- To control site operation, instruments maintenance and associated data quality at the LSCE-SIRTA station
- To consolidate the Aerosol Chemical Monitor Calibration Center, that it belongs to one central facility of the research infrastructure ACTRIS-EU.
- To supervise students, PhD, post-docs and the technical personal working at the observatory
- To valorize scientifically all the research activities
- To represent its thematic at the national and international level (especially within the framework of ACTRIS-FR and ACTRIS-EU).
The candidate will have a PhD in atmospheric sciences. We are looking for a researcher in experimental atmospheric chemistry, with a significant expertise in aerosols chemistry.
Requested experiences (1) within the area of aerosol measurement and instrumentation (especially mass spectrometry), (2) of conducting field campaigns, (3) in treating and interpreting data and (4) in developing/applying numerical tools. Skills in managing scientific projects (at the national and/or European level) would be an added value. Demonstration to represent scientifically LSCE/ACTRIS at the national and/or European level, to work as part of a research team while having also the capacity to work independently and to write/coordinate projects will be an important asset. Good writing and oral communication (french and english) abilities will be also appreciated
The Laboratory of Climatic and Environmental Sciences (LSCE) is a CEA/CNRS/UVSQ research unit, located on the CEA campus (Orme des Merisiers, Gif-sur-Yvette, France). Internationally recognised in the area of climate measurements and modelling, biogeochemical cycles and environmental sciences, this institute has currently 155 permanents members and about 140 temporary collaborators. Within this institute, the group “Experimental Atmospheric Chemistry” is specialized in the measurements of reactive species (gases and aerosols) in the low troposphere, species which have an impact on health (air quality), ecosystem and/or climate. A special focus is on the quantification and characterization of their sources, properties and processes.
Salary will be determined based on diploma and previous experience, according to grids salary from CEA.
How to apply :
Questions related to the position should be addressed to Valérie Gros (Group leader), email@example.com.
Applications should be addressed to Elsa Cortijo (LSCE director) and should include:
- A complete CV including a list of scientific publications,
- A letter of motivation including the main lines of the research project
Applications will be examined by a committee with a first phase of selection and then an oral examination for pre-selected candidates. The date of the oral examination will be within the period from June 11 to July 11 2018. Starting date is expected late Fall 2018.
All the documents must be sent to Elsa.Cortijo@lsce.ipsl.fr on Tuesday May 22nd at the latest.
Postdoctoral opportunities exist to investigate the unique micro-environments provided by aqueous surfaces, interfaces and micro-droplets, and how they affect organic photochemical reactions. The proposed research includes three related approaches:
(1) fundamental laboratory experiments to probe multiphase, environmentally relevant systems using surface sensitive techniques,
(2) environmental chamber studies where conditions approximating the atmosphere can be created, allowing for the assessment of the importance of interfacial chemical reactions in comparison to the better-studied bulk reactions in gas and aqueous phases, and
(3) investigation of reactions confined in micro-droplets and vesicles, which will be compared with their bulk and surface counterparts.
This research has significant implications for planetary chemical processes, including on both the contemporary and prebiotic Earth. (1) The Earth’s ocean-atmosphere system, a sunlight-driven photochemical reactor, is a large and complex system, but has been altered over its existence through both natural and anthropogenic events. While gas phase chemistry has received the most attention, in this global reactor, chemistry occurs in all phases. In fact, it has long been established that heterogeneous and multiphase reactions can be extremely important for a fundamental understanding of environmental chemical reactions, which affect chemical processing, air quality, and ultimately visibility, human health, and the planet’s temperature. (2) More broadly, radiation from a planet’s host star provides energy capable of driving planetary processes, including those that increase a system’s chemical complexity.
Starlight initiated reactions generate high-energy molecules that are precursors to metabolism as it has evolved in life on Earth. Experiments are designed to investigate the photochemical synthesis and reactivity of such model organic systems under conditions representative of exoplanet Earth analogues, as well as the effect of water on reactivity. Based on this photochemistry, potential spectroscopic probes will be designed for the identification of high energy species and consequently of potentially habitable environments.
To apply, please send a letter of interest, a full CV, and contact information for two references (one of which is the graduate advisor) to Professor Veronica Vaida, Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO, 80309-0215 or email to Vaida@colorado.edu
Research Associate /Atmospheric trace gas and aerosol measurements at CIRES and the University Colorado Boulder - Deadline : ASAP
The Cooperative Institute for Research in Environmental Sciences (CIRES) at the University of Colorado Boulder is seeking a postdoctoral researcher to develop and apply novel analytical instrumentation in atmospheric research. This position requires expertise in optical instrumentation, its application in laboratory and field experiments, and data interpretation and reporting of scientific results. The position is located in the Chemical Sciences Division (CSD) of the NOAA Earth System Research Laboratory in Boulder, Colorado.
The successful candidate will operate, maintain, and improve instrumentation based on cavity enhanced spectroscopy, as required to address specific atmospheric trace gas and aerosol science goals in laboratory and field settings. The candidate will further undertake analysis, publication and presentation of the data generated during field intensives and laboratory work. The candidate will use results from these analyses, and skills related to analytical instrument development, to identify and pursue new areas of research pertinent to the scientific mission of CIRES and NOAA CSD. The candidate will be required to work both independently and in a collaborative role with other investigators as project needs dictate. The candidate will be expected to participate in remote field deployments of approximately 4-6 weeks duration approximately every other year. The initial appointment will be for 2 years with the possibility of extension following exemplary performance. This position has a notional start date of 01 June 2018 but may be adjusted depending on candidate availability.
Review of applications will begin on February 1 and continue until the position is filled.
The specific duties of this Research Scientist position include the following:
1. Instrument development, improvement and support including:
· Maintenance, testing, and optimization of existing NOAA CSD laboratory and field instrumentation based on optical methods.
· Design, construction, testing, and optimization of novel instrumentation for atmospheric trace gas and aerosol measurements in laboratory and field studies, including airborne platforms.
2. Data collection, field and laboratory measurements including:
Operation and maintenance of instruments during field campaigns.
Laboratory experiments to elucidate chemical and physical processes relevant to the interpretation of atmospheric field data.
Calibrate and define the capabilities and limitation of field and laboratory instrumentation.
Data reduction, quality control and archiving.
3. Data analysis, and publication and presentation of scientific results including:
Analysis of data from field intensives and laboratory work.
Presentation of scientific results at conferences, workshops and meetings.
Publication of scientific results in peer-reviewed journals.
4. Identification of research priorities, including:
· Maintaining familiarity and knowledge of relevant scientific literature.
· Initiating new directions for instrumentation, laboratory or field research.
PhD in related field
Special Instructions to Applicants: The University of Colorado Boulder conducts background checks on all final applicants being considered for employment, prior to the issuance of an offer letter. The University of Colorado Boulder is committed to providing a safe and productive learning, living and working community. To achieve this goal, we conduct background investigations for all final applicants being considered for employment. Background investigations include a criminal history record check, and an EPLS (Excluded Parties List System) check. The Immigration Reform and Control Act requires that verification of employment eligibility be documented for all new employees by the end of the third day of work.
The University of Colorado is an equal opportunity and affirmative action employer committed to assembling a diverse, broadly trained faculty and staff. In compliance with applicable laws and in furtherance of its commitment to fostering an environment that welcomes and embraces diversity, the University of Colorado does not discriminate on the basis of race, color, creed, religion, national origin, sex (including pregnancy), disability, age, veteran status, sexual orientation, gender identity or expression, genetic information, political affiliation or political philosophy in its programs or activities, including employment, admissions, and educational programs. Inquiries may be directed to the Boulder Campus Title IX Coordinator by calling 303-492-2127. In accordance with the Americans with Disabilities Act, alternative formats of this ad can be provided upon request for individuals with disabilities by contacting Human Resources at firstname.lastname@example.org.
Application Materials Required: Cover Letter, Resume/CV, Reference Letters (Not Confidential), Unofficial transcript(s)
Application Materials Instructions: Applicants must complete the Faculty/University Staff and EEO Data (application) form, and upload the following required documents: 1 – Cover Letter; 2 – CV; 3 – The document uploaded for Proof of Degree can be a Transcript which shows the date the degree was conferred; Copy of Diploma; or official letter from the Registrar or the Dean of the School or College conferring the degree; 4 –A non-confidential letter of reference This position is eligible for medical, dental and life insurance, retirement benefits programs, and is eligible for monthly vacation and sick leave accruals.
Please see the description below, and feel free to contact me (email@example.com) with any questions about the position.
Aerodyne Research, Inc. (ARI), a small R&D company, has been providing research and development services and advanced instrument and software products to industrial, academic and government customers addressing national and international environmental, energy and defense challenges for 46 years.
We are currently seeking a postdoctoral scientist for our Center for Aerosol and Cloud Chemistry (CACC). This position will focus on instrument development and applications to atmospheric chemistry and is located in Billerica, MA.
The successful candidate will characterize secondary gas and particle species generated using a Potential Aerosol Mass (PAM) oxidation flow reactor. A large suite of start-of-the-art instrumentation is available for the project, including: a high-resolution chemical ionization mass spectrometer (CIMS) with Filter Inlet for Gases and Aerosols (FIGAERO) and extractive electrospray ionization (EESI) sources; an ion mobility-time of flight mass spectrometer (IMS-MS); and a Vocus Proton-Transfer Reaction Time-of-Flight Mass Spectrometer (PTR-ToF-MS).
Target outcomes include:
• Evaluation of the FIGAERO-CIMS, EESI-CIMS, IMS-MS and PTR-ToF-MS techniques under controlled conditions of atmospheric relevance
• Comparison of laboratory datasets to results obtained in recent field campaigns, where applicable
• Publication of novel experimental results
• Opportunities to participate in ARI field studies and other ongoing laboratory and collaborative projects is expected
Qualified candidates must possess a Ph.D. in chemistry, atmospheric sciences, aerosol physics, environmental engineering, or a related discipline. Skill in the operation of advanced analytical instrumentation and data interpretation and the ability to work effectively within a team. Strong programming ability, as well as experience in troubleshooting and fixing instrumentation and experimentation problems.
Preferred: Experience with mass spectrometry, vacuum technology, and aerosol instrumentation. Prior demonstrated success in laboratory or field studies of atmospheric chemistry.
We offer competitive compensation, comprehensive benefit programs, including an ESOP. Please send your resume and salary requirements in confidence to firstname.lastname@example.org. We are an equal opportunity employer/veterans/disability.
Post-Doctoral position in Atmospheric Chemistry at University of Kyoto - deadline
Kyoto University is seeking a postdoctoral fellow who is interested in Atmospheric Chemistry/Physics with focus on aerosol studies. In the planned project reaction kinetics of HOx (OH and HO2) radicals with aerosols such as SOA will be investigated using laser spectroscopy and other techniques. We welcome applications from researchers in all areas related to atmospheric chemistry. There is no strict application deadline; this call will close once an appropriate candidate has been appointed. The job is to be filled as of April 2018 and is initially for one year. The term can be extended for an additional 2 years.
For further inquiries and submission of applications please contact:
Prof Yoshizumi Kajii
Graduate School of Global Environmental Studies