Instructions for proposing CRAICC fellowships:

 

Proposal for an open fellowships should include: the specific tasks, duration and timing, and collaborating partners included (also the funding partner). At least 2 CRAICC partners from different countries should be involved in a proposed fellowship. If a fellow is invited from outside of CRAICC, then 2-3 hosts should be involved.

New fellowships will be open 4 times per year.

The deadline for the next fellowships proposal submission is the 10. of November 2015

The fellowship proposal should be send to the coordination office (This email address is being protected from spambots. You need JavaScript enabled to view it. and This email address is being protected from spambots. You need JavaScript enabled to view it.

 

 

OPEN FELLOWSHIPS

 

 

PostDoctoral position on "Modelling of the climate impact of natural gas flaring in the Arctic"

 

Start: 1. September 2014

Duration: 12 months

Working institute: Dept. of Physics, University of Helsinki, Finland

 

Background:

Recently, natural gas flaring associated with oil-drilling, natural gas extraction and their further processing in northern Russia has been suggested to be a far more significant black carbon (BC) emission source than previously recognized. Flaring in northern Russia may account for 42% of the yearly atmospheric BC concentration in the Arctic (Stohl et al., 2013). Although the flaring related BC emissions are small in comparison to global BC emissions their importance in the perturbation of the Arctic climate is amplified as BC emitted within the Arctic has an almost five times larger Arctic surface temperature response (per unit of emitted mass) compared to emissions at mid-latitudes (Sand et al., 2013). Moreover, the BC is emitted at high north latitudes and therefore has a high probably to be deposited in the Arctic basin.

Several back trajectory modelling studies have shown Svalbard to be particularly susceptible for BC emissions from northern Europe and Russia. An ice core spanning 1700-2004 from western Svalbard (Holtedahlfonna glacier) has recorded an increase in EC (elemental carbon, operational proxy for BC) concentrations and deposition from 1970 to 2004 (Ruppel et al., 2014). This trend differs from the previous view based on Greenland ice cores according to which BC deposition in Greenland has decreased from 1910 to preindustrial levels today. A possible source for the EC deposited in Svalbard during the last decades is flaring in northern Russia. These high-latitude BC emissions do not reach the Greenland ice coring sites due to limited isentropic lifting in the polar dome. Many of the oil and gas fields in northern Russia were found at the end of the 1960s and in the beginning of 1970s after which their development and BC emissions can be expected to have risen. At the present, Russia is globally the leading country in flaring amounts. Arctic flaring emissions are expected to increase in the future as Russian oil companies have announced their objective to double their gas and oil production capacity in northern Russia in the future.

The main objective is to understand the cause of the increase of BC in the last decades in Svalbard Areas. For that purpose, we will use a detailed atmospheric model (WRF-CHEM or SILAM) to better characterise the nature and the origin of air masses that are transported towards the Svalbard archipelago where we have been measuring the past and recent BC content from an ice core and snow samples. We will investigate the potential change of rate of deposition and the sources of BC due to the possible change of air circulation in the Arctic basin, linked to climate change. We will also investigate in detail the potential impact of flaring in Northern Russia that started in early 70s, when BC deposition increased in the Holtedahlfonna ice core, to determine if the increase of emission in that area can affect the amount of BC deposited in Svalbard and explain our observations. A strong focus will be made on the deposition of BC together with the precipitations in order to link both model and observation. This should allow us to better estimate the radiative impact and the time radiative efficiency of BC over snow and ice surfaces.

 

The specific aims are:
1. Modelling past (at least the last 150 years) BC deposition and precipitations at the Svalbard ice core site for comparison with the ice core deposition results
2. Modelling the past radiative transfer at the ice core site based on the BC results in order to better estimate the climate implications of BC deposition at the glacier

 

Eligibility:

The applicant must hold a Ph.D. degree in atmospheric sciences, and should have good programming skills and experience with Linux/Unix environments.

 

Ranking criteria:

The emphasis will be on the applicants' scientific merit and programming skills. The applicant must be proficient in spoken and written English.

 

More information:

Dr. Elisabeth Isaksson (This email address is being protected from spambots. You need JavaScript enabled to view it.), Meri Ruppel (This email address is being protected from spambots. You need JavaScript enabled to view it.) or Dr. Michael Boy (This email address is being protected from spambots. You need JavaScript enabled to view it.)

 

How to apply:

The application should be written in English and should include a short description of the applicant's motivation and research interests. It should also include a CV, including a list of peer-reviewed publications, and contact information (name, phone, email) for at least two reference persons.The application should be sent by email (pfd or word documents) to Dr. Elisabeth Isaksson (This email address is being protected from spambots. You need JavaScript enabled to view it.)

 

Application deadline: 1 August 2014

 

Application closed !

 

References:
Ruppel, M. M., Isaksson, E., Ström, J., Beaudon, E., Svensson, J., Pedersen, C. A., and Korhola, A.: Unexpected increase in elemental carbon values over the last 30 years observed in a Svalbard ice core, Atmos. Chem. Phys. Discuss., 14, 13197-13231, doi:10.5194/acpd-14-13197-2014, 2014.

Sand, M., Berntsen, T. K., Seland, Ø., Kristjánsson, J. E.: Arctic surface temperature change to emissions of black carbon within Arctic or midlatitudes, J. Geophys. Res.-Atmos., 118, 1–11, doi:10.1002/jgrd.50613, 2013.

Stohl, A., Klimont, Z., Eckhardt, S., Kupiainen, K., Shevchenko, V. P., Kopeikin, V. M., and Novigatsky, A. N.: Black carbon in the Arctic: the underestimated role of gas flaring and residential combustion emissions, Atmos. Chem. Phys., 13, 8833–8855, doi:10.5194/acp-13-8833-2013, 2013.

 

 


 

 

PostDoctoral position on 'Quantification of feedbacks in the cryosphere-atmosphere-climate system'

 

Starting date: 1. October 2014 or as agreed upon

Duration: 9 months

Woriking institute: Dept. of Physics, University of Helsinki, Finland


Description of the subject area

The Arctic cryosphere is undergoing rapid changes due to climate change. In order to quantify likely changes in the coming decades it is necessary to have a good understanding of the underlying physical processes and their interactions. This includes possible feedback mechanisms that may amplify the signal caused by anthropogenic perturbations to the energy balance. In addition to the traditional ice/snow-albedo feedback which is expected to amplify global warming in the Arctic, various possible feedback loops between human activity, short-lived climate forcers and the Arctic cryosphere have also been proposed. This includes e.g., changes in aerosol forcing due to oil exploitation in the Arctic, increasing ship traffic in the Arctic, increasing marine emissions from high-latitude oceans, as well as changing biogenic emissions of aerosol precuror gases from high-latitude vegetation. The Postdoctoral Fellow will quantitatively address and compare some of these feedback loops, mainly through a set of dedicated simulations using the Norwegian Earth System Model (NorESM). The NorESM is among the 'CMIP5' models that participated in IPCC's climate projections for the 21st century for IPCC's 5th Assessment Report. The CRAICC partners directly involved with the fellowship are the University of Helsinki (Markku Kulmala) and the University of Oslo (Jón Egill Kristjánsson).


Eligibility

The applicant must hold a Ph.D. degree in atmospheric sciences, and should have good programming skills and experience with Linux/Unix environments.


Ranking criteria

The emphasis will be on the applicants' scientific merit and programming skills. The applicant must be proficient in spoken and written English.

 

More information

Professor Markku Kulmala, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.; Professor Jón Egill Kristjánsson, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

 

How to apply

The application should be written in English and should include a short description of the applicant's motivation and research interests. It should also include a CV, including a list of peer-reviewed publications, and contact information (name, phone, email) for at least two reference persons. The application should be sent by email (pfd or word documents) to Dr Michael Boy (This email address is being protected from spambots. You need JavaScript enabled to view it.). 

 

Application deadline: 1 August 2014

Application closed !

 

 


 

Postdoc position available at Aarhus University: Formation and properties of organic aerosols

 

Starting date: 15. August 2014 or as soon as possible thereafter

Duration: 26 months

Working institute: Department of Chemsitry, Aarhus University, Denmark

 

Description of the subject area:

Organic aerosols impact human health, air quality and global climate. The project will investigate the formation and chemical and physical properties of organic aerosols of atmospheric relevance. The project is largely experimental and will involve the construction, testing and application of a new environmental chamber, as well as analysis of laboratory and field data. The project includes studies of the effects of temperature and particle phase on particle chemical and physical properties.

 

Qualifications

Applicants should hold a PhD degree in chemistry and have knowledge and experience in the field of atmospheric aerosols. The candidate should have documented experience with smog chamber work, measurement of particle properties and chemical analysis of atmospheric aerosol particles.

 

Further information

For further information please contact Professor Merete Bilde (This email address is being protected from spambots. You need JavaScript enabled to view it.) and/or Professor Marianne Glasius (This email address is being protected from spambots. You need JavaScript enabled to view it.)

 

Formalities and salary range
The Faculty of Science refers to the Ministerial Order on the Appointment of Academic Staff at Danish Universities under the Danish Ministry of Science, Technology and Innovation.
Further information on qualification requirements and job content may be found in the Memoran-dum on Job Structure for Academic Staff at Danish Universities.
Guidelines for applicants can be found here. Appointment shall be in accordance with the collective labour agreement between the Danish Ministry of Finance and the Danish Confederation of Professional Associations. Further information on qualification requirements and job content may be found in the Memorandum on Job Structure for Academic Staff at Danish Universities. (in Danish).
Salary depends on seniority as agreed between the Danish Ministry of Finance and the Confederation of Professional Associations.

 

Deadline

All applications must be made online and received by June 27, 2014.

 

How to apply

To apply go to: http://www.au.dk/en/job/nat/academicpositions/

Application closed !

 


  

Postdoc fellowship – Formation and properties of primary marine particles

 

Starting date: 1. October 2013 or as soon as possible thereafter

Duration: 24 months

Working institution: Department of Chemistry, Aarhus University

 

Description of the topic and subject area:
Primary marine particles are formed under windy conditions when air-bubbles get entrained in the ocean by breaking waves. At the surface these bubbles burst resulting in release of droplets containing salt and other components to the atmosphere. The particle production is dependent on temperature and chemical composition of the sea-water but the related chemical and physical processes are poorly understood. The focus of this project is to elucidate the formation of primary marine particles in a controlled laboratory environment under different conditions of temperature and composition of the seawater. Physico-chemical properties of the particles including their ability to act as ice nuclei will be investigated.

 

How to apply:
Application guidelines are available at the webpage of Aarhus University and all applications must be made online via the webpage of Aarhus University:
Link (choose: Postdoc positions in atmospheric aerosol science)

Salary depends on seniority as agreed between the Danish Ministry of Finance and the Confederation of Professional Unions.

 

For further information please contact:
Merete Bilde, Aarhus University, This email address is being protected from spambots. You need JavaScript enabled to view it.

 

Application deadline: 4. August 2013.

Application closed !

 


 

PhD fellowship in Lake Ice Modelling

 

Starting date: 1. September or as soon as possible thereafter

Duration: 24 months

Working institute: University of Helsinki, Department of Physics, Finland

 

Desciription of the topic and subject area:

A two-year CRAICC fellowship on lake ice modelling for a PhD student has been opened. The home site for this fellowship is the University of Helsinki, Department of Physics. The content of the work is to:
- Further develop our existing numerical lake ice model
- Refine the ice physics in particular for the melting season
- Couple the ice model with a mixed layer lake water body model
Model calibration on validation will be made using the existing data from several lakes. This advanced numerical model will be also compared with a hierarchy of more simple existing lake ice models to establish their feasibility for ecological and climate investigations.

The modeling work is done in close collaboration with the GLEON (Global Lake Ecological Observatory Network, see http://www.gleon.org/) ice project. This project will provide a data set for about 20 lakes in Europe and North America. The model hierarchy can then be used for further investigations in Helsinki. The PhD student will work together the snow and ice team in the University of Helsinki. Collaboration with CRAICC lake groups is attempted when the work has been started. The end products are a series of scientific papers, mathematical models to be released to the research community, and a major part of the PhD thesis of the person receiving the grant.

 

How to apply:

Applications should be written in English and must include a CV and a full list of peer-reviewed publications. The application should also include copies of relevant examination certificates and contact information of at least two reference persons. The applicant should possess a basic knowledge of lake physics and Fortran programming. More details can be obtained using the contact data below. Salary depends on qualifications.

 

More information and application:

Matti Leppäranta, Professor
Department of Physics, University of Helsinki
Box 48 (Erik Palménin aukio 1)
Fi-00014 Helsinki, Finland
email This email address is being protected from spambots. You need JavaScript enabled to view it.
phone +358-9-19151016, gsm +358-50-4154752

 

Application deadline: 31. August 2013 - extended until 31. of October

Application closed !

    


 

Postdoc fellowship – Modeling of high latitude forcing and climate impact of short-lived climate forcers

 

Starting date: June 1, 2013.

Duration: 12 months.

Working institution: Center for International Climate and Environmental Research Oslo (CICERO) and University of Oslo

 

Description of the topic and subject area:

Short-lived climate forcers (SLCF) including all aerosol species and also tropospheric ozone might have a particular impact on Arctic climate. In this project the NorESM model with interactive gas-phase chemistry, aerosol microphysics and interactive clouds, will be used to simulate formation and transport of short-lived climate forcers to the Arctic, as well as their impact on radiative forcing and climate response. The simulations will be supplemented by experiments with the OsloCTM3 off-line global model. In the simulations special focus will be given to the direct radiative forcing of black carbon (BC), BC on snow and ice as well as the semi-direct effect. The project will be closely linked to the work of expert group on SLCF and Arctic climate of the Arctic Monitoring and Assessment program (AMAP). The post-doc will be based at CICERO, but for several months of the period will be located at the University of Oslo.

 

How to apply:
Applications should be written in English and must include a CV and a full list of peer-reviewed publications. The application should also include copies of relevant examination certificates and contact information of at least two reference persons.

 

More information and application:
Terje Berntsen, CICERO/University of Oslo, This email address is being protected from spambots. You need JavaScript enabled to view it.

 

Salary:
Salary depending on qualifications (salary for Postdoc starts at NOK 524 000,- per year).

 

Pension Fund:
All CICERO employees are members of Norwegian Public Service Pension Fund. You will also be a member of a Group Life Insurance in Norwegian Public Service Pension Fund.

Questions concerning administrative issues including salaries and personnel policy may be directed to Office Manager Tone Veiby, phone +47 22 85 87 55, e-mail This email address is being protected from spambots. You need JavaScript enabled to view it..

 

Application deadline: 15th of April, 2013

Application closed !

 


 

Post Doc fellowship on: Variability of sea ice in the Arctic Ocean and the Greenland Sea

 

Starting date: June 1, 2013

Duration: 24 months

Place of work: Institute of Earth Sciences - University of Iceland, Reykjavík, Iceland and University of Helsinki, Helsinki, Finland

 

Description of the project

The project studies recent variability of sea-ice extent, concentration, albedo and new ice formation in the Arctic Ocean and the Greenland Sea from 2002-2012 using available satellite data (optical, active and passive microwave images) and field observations (when available). Long term data on historical variation of sea ice in the Greenland Sea and the Arctic Ocean (AD 1850 onwards) will be used for comparison and to study connection with climate. Mesoscale models of the atmosphere and the ocean will be used to simulate different ice conditions in past and future. The results of the project will be incorporated into ESMs.

 

How to apply

Applications should be written in English and must include a CV and a full list of peer-reviewed publications and a brief letter (max. one page) explaining the motivation for applying for the position. The application should also include copies of relevant examination certificates and contact information of at least two reference persons. The application should be sent to This email address is being protected from spambots. You need JavaScript enabled to view it.

 

More information

Ingibjörg Jónsdóttir, University of Iceland - This email address is being protected from spambots. You need JavaScript enabled to view it.
Haraldur Ólafsson, University of Iceland - This email address is being protected from spambots. You need JavaScript enabled to view it.
Matti Lepparanta, University of Helsinki - This email address is being protected from spambots. You need JavaScript enabled to view it.

 

Application deadline: 20th of April, 2013

Application closed ! 

 


 

Visiting scientist open position: Atmospheric aerosols distribution and microphysical properties in Polar Regions

 

Starting date: May 1, 2013

Duration: 9 months

Place: University of Helsinki, Finland

 

Description of the project

Polar Regions and atmospheric aerosol received special attention during last decades. The Arctic is undoubtedly part of the world where climate warming trend is most pronounced. Despite increase knowledge and amount of data during recent decade, there is still little is known about aerosol properties on the other side of the globe, in Antarctica. Within this project the main focus will be on analysis of tropospheric aerosol distribution, evolution and microphysical properties in both Polar Regions. Direct comparison of both Arctic and Antarctic aerosol should be set in a frame of differences in sources, sinks, source regions, local meteorology and general circulation. The work will involve analysis of already available data from various platforms including long term ground base observations as well as short term intensive campaigns. Special attention will be on spatial and temporal distribution in whole troposphere and possible interplay between boundary layer and free troposphere..

 

How to apply:

Applications should be written in English and must include a CV and a full list of peer-reviewed publications and a brief letter (max. one page) explaining the motivation for applying for the position. The application should also include copies of relevant examination certificates and contact information of at least two reference persons.

More information and application:

Michael Boy – This email address is being protected from spambots. You need JavaScript enabled to view it.

 

Application deadline: 31st of March, 2013

Application closed !

 


 

Post Doc fellowship on: Aerosol emission reductions over the 20th and 21st century and their impact on polar climate.

 

Starting date: April 15, 2013
Duration: 24 months
Place of work: Norwegian Meteorological Institute, Oslo, Norway and Stockholm University, Stockholm, Sweden.

Description of the topic and subject area:

In this project, the Earth system model NorESM will be used to study how regional changes in European aerosol emissions during the last decades may have impacted on the Arctic and global climate. Large changes in the magnitude and spatial patterns of global aerosol emissions have occurred during the 20th century and are projected to continue over the coming century. Of particular relevance for the Arctic are the reductions in sulphate emissions from industrial activities, domestic heating, and power production that have taken place in Europe during the latest decades. These changes provide an opportunity to study in detail how regional emissions over Europe affect the radiative balance and the global and Arctic climate. Detailed estimates of the European emission reductions are readily available, in addition to temperature and radiation measurements.
In this project, the candidate will contribute to the execution and analysis of NorESM simulations to examine how reductions in aerosol emissions from different emission sectors may have affected Arctic and global climate between 1980 and 2010. The successful candidate will also have the opportunity to work on other global aerosol modeling projects. We seek a candidate with experience in global climate modeling, preferably within the field of aerosol particles and aerosol-cloud interactions. The post-doc will be based at Stockholm University, but longer research visits at the Norwegian Meteorological Institute are also expected.

How to apply:

Applications should be written in English and must include a CV and a full list of peer-reviewed publications and a brief letter (max. one page) explaining the motivation for applying for the position. The application should also include copies of relevant examination certificates and contact information of at least two reference persons.

More information and application:

Hans-Christen Hansson, Department of Applied Environmental Science, Stockholm University – This email address is being protected from spambots. You need JavaScript enabled to view it.
Trond Iversen, Norwegian Meteorological Institute – This email address is being protected from spambots. You need JavaScript enabled to view it.
Annica Ekman, Department of Meteorology, Stockholm University – This email address is being protected from spambots. You need JavaScript enabled to view it.
Ilona Riipinen, Department of Applied Environmental Science, Stockholm University – This email address is being protected from spambots. You need JavaScript enabled to view it.

 

Application deadline: 15th of March, 2013.

 Application closed !

 


 

Visiting scientist on "Sulphate salts during different climatic conditions"

Starting date, duration: 1.3.2013, 1 year

Place of work: Stockholm University, Department of Physical Geography and Quaternary Geology, Sweden.

Description of the topic and subject area:

Sulphate aerosols, particularly micrometre-sized particles of sulphate salt and sulphate-adhered dust, can act as cloud condensation nuclei, leading to increased solar scattering that cools Earth's climate. Evidence for such a coupling may lie in the sulphate record from polar ice cores, but previous analyses of melted ice-core samples have provided only sulphate ion concentrations, which may be due to sulphuric acid. In order to clarify characteristics of chemical compositions of soluble aerosols deposited in Polar environments, we measure constituent elements of nonvolatile particles in ice cores from Greenland and Antarctica. Especially, we focus on characteristics of constituent elements of soluble particles, which can be extracted by sublimation of ice and other volatile materials below annual mean temperature at the deposition site. We have established this sublimation system at Stockholm University, and we will extract nonvolatile particles from the NEEM ice core from the latest deep drilling program in Greenland. By utilizing deep ice cores we can study local and regional differences in salt composition under different climatic conditions spanning transitions between glacial and interglacial climate.

How to apply: Cover letter and CV, names and email address of referee(s)

More information and application: This email address is being protected from spambots. You need JavaScript enabled to view it.

Application deadline: 18.2.2013

Application closed !

  


 

PhD fellowship on "The sources and influence of aerosols in the Arctic on glacier energy balance"

Starting date: As soon as possible after approval, but not later than 1 September 2013.

Duration: 36 months

Place of work: University of Iceland, Institute of Earth Sciences (http://earthice.hi.is)

(the project includes longer stays, ~12 months total, at NILU, Norway, and Finnish Meteorological Institute and University of Helsinki, Finland).

 

Research area and project description:
The project will focus on the source mechanics and impact of deposition of airborne aerosols (dust, volcanic ash, and black carbon) on the glacier surface albedo and possible consequences for the future climate evolution in Arctic regions. The study will make use of data collected from glaciers in Iceland during the summers since mid-1990's; ~10 automatic weather stations on Vatnajökull ice cap since 1996, and 2 stations on Langjökull ice cap since 2001. The aim is to describe the effects of dust and ash dispersion on snow and glacier melt. The field observations include: a) both incoming and outgoing shortwave and longwave radiation balance, b) data to estimate the turbulent heat fluxes of the glacier boundary layer, c) the specific mass balance observed in-situ at location of stakes, d) time series of digital elevation maps, and e) glacier runoff. Time series of field data from the glaciers in Iceland show a wide range of impacts of albedo changes on glacier melting.
The project will also make use of data collected in Sodankylä on snow albedo, in particular during the SNORTEX experiments, and data from dedicated CRAICC experiments on the deposition of black carbon and ash on snow and it's effects on snow albedo and snow melt.
Satellite observations of glacier surface albedo (~5 km spatial resolution at daily to weekly temporal resolution) will be calibrated and verified by ground based observations of albedo.
Albedo changes related to snow/ice impurities in Iceland are likely driven by deposition of dust in normal years and by deposition of volcanic ash after major eruptions, such as the 2010 eruption of Eyjafjallajökull and 2011 eruption in Grímsvötn. With FLEXPART, the project has a model at it's disposal that has proven to be capable of simulating volcanic ash dispersion. The model is currently extended to also simulate dust mobilization and the subsequent dust transport and deposition. FLEXPART can deliver spatio-temporally resolved size-resolved dust deposition fields, which can be used directly to compare with observations of albedo and/or run-off.

 

Qualifications and specific competences:
Applicants to the PhD position must have a relevant Master's degree, in geophysics or other relevant fields, with excellent data processing and modeling skills.

 

Contacts:
Applicants seeking further information are invited to contact:
Throstur Thorsteinsson, Associate Professor – This email address is being protected from spambots. You need JavaScript enabled to view it.

 

Application procedures:
You must send the following information, in English, to This email address is being protected from spambots. You need JavaScript enabled to view it.:
• Cover letter.
• Academic background. Transcripts and diploma(s) in one merged file (don't have to be official at this stage). Please enter your un-weighted grade average calculated and based on your transcript's grading scale, BSc and MSc separately.
• Curriculum Vitae.
• Motivation (max. 1 page)
• References (as a minimum 1 must be sent)
• Financing (if any)
Application material (pdf only, max 10 MB, no zip):

Deadline for application: 1 February 2013.

If selected you have to apply formally to the University of Iceland. Final applications by the selected candidate is required in electronic format (https://ugla.hi.is/umsoknir/index.php) and should be sent after the decision by the selection committee, with a copy to Hafdís Eyjólfsdóttir, project manager of graduate studies, tel: +354 525 4473, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.. Details regarding the requirements for applying to the PhD program at the Faculty of Earth Sciences can be found at https://english.hi.is/sens/faculty_of_earth_sciences/application (note that the application deadline does not apply).

Application closed ! 

 


 

Postdoc fellowship – Aerosol particles from ship traffic in the Arctic

Starting date: November 1, 2012.

Duration: 6 months.

Working institution: Lund University, Lund, Sweden, Department of Physics, Division of Nuclear Physics.

Description of the topic and research area:

As the ice on the Arctic Ocean is melting, ship traffic in the Arctic area is expected to increase. This will increase emissions of soot, other particulate matter and gaseous particle precursors in the area. How these emissions affect the properties of the clean Arctic atmosphere and snow is not well known. In this project we aim for better understanding of the transport and ageing of ship plumes, as well as understanding the climatological effects of ship emissions in the Arctic.

The candidate would be making research on the effects of emissions from current and near future ship fleets in the Arctic. The aerosol dynamics model ADCHEM will be used to simulate the ageing of the ship plume emissions during several days of atmospheric transportation. Together with PhD students at the Lund University, which are running the model, the candidate would contribute with validation of model results with available measurement data and with the preparation of appropriate emission databases. The work is complemented with analysis of black carbon measurement data collected at various coastal or near coastal sites within CRAICC, as well as the analysis of cloud condensation nuclei concentrations and new particle formation related to ship emissions.

 

Qualifications and special competences:

The applicant of the postdoc position must have a PhD degree in a relevant field. Good knowledge of written and spoken English is required. The most important qualifications of the applicant include experience in analyzing long-term measurement data sets together with trajectory data. Knowledge in aerosol chemistry, aerosol-cloud interactions, new particle formation and effects of black carbon are additionally required.

Since the work is funded by CRAICC, the applicant cannot be from Sweden.

Contacts:

Further information about the fellowship from the Nuclear Physics Division at Lund University:

Dr Adam Kristensson – This email address is being protected from spambots. You need JavaScript enabled to view it. , +46-46-2227645

Prof. Erik Swietlicki – This email address is being protected from spambots. You need JavaScript enabled to view it. , +46-46-2229680

How to apply:

You must apply through the web-based Lund University application site:

http://www.lunduniversity.lu.se/about-lund-university/jobs

Deadline for application: October 1, 2012.

Application closed !

 


 

Post doc fellowship on 'Quantification of VOC emissions from periodically ice-covered aquatic sources (iceVOC)' at the University of Helsinki and University of Gothenburg

 

Starting date (latest): 1. Januray 2013

Duration: 12 months

Place of work: University of Helsinki and University of Gothenburg

Description of the topic and subject area:

Biological sources of VOCs in aquatic ecosystems are related to algal and microbial functions, which produce significant quantities of volatile compounds (VOCs) especially during the algal bloom periods. Also in inland lakes, algae and bacteria produce VOCs in quantities comparable to those of terrestrial soil and forest floor vegetation, and the diurnal pattern of emissions indicates a significant contribution of biological (both bacterial and algae) metabolism on the production of VOCs. Aquatic VOC emissions have mostly been measured during the ice-free period which is when the biological activity is greatest. However, the ice cover does not inhibit bacterial metabolism which is independent on light. It is anticipated that biologically produced VOCs can accumulate in water beneath the ice cover, and be rather rapidly released to the air during the ice melt period.

The selected post-doc fellow will aim to quantify the VOC fluxes from two freshwater ecosystems in Finland and Sweden. In addition to field measurements, samples from ice and snow, and from water beneath the ice will also be analyzed. The biogenic potential of microbial and algal populations to produce VOCs and the accumulated VOC\'s will be measured in laboratory conditions. Analytical skills and ability to conduct field measurements are appreciated. The selected post-doctoral fellow will contribute to both CRAICC and DEFROST NCoE\'s.

How to apply:

Motivation letter and CV, copies of relevant examination certificates and names and e-mail addresses of two referees.

More information:

Dr. Jaana Bäck, University of Helsinki, Finland - This email address is being protected from spambots. You need JavaScript enabled to view it.

 

Deadline for application: 31. of August 2012.

Application closed !

 


 

Post Doc fellowship on 'The effect of sea-ice loss and climate change on the natural sulphur cycle and radiative forcing: Improved representation of DMS emissions in NorESM'

Starting date: September 1

Duration: 4 months

Place of work: Norwegian Meteorological Institute, Oslo, Norway

  Research area and project description:

The natural environment is a major source of atmospheric aerosols. In order to quantify the anthropogenic aerosol climate effect it is necessary to know the natural aerosol production rate and how this is perturbed by a changing climate. However, emissions of natural aerosols, such as sea salt and secondary aerosols formed from dimethyl sulfide (DMS) emissions, are often treated in a simplified manner in Earth System Models (ESMs). The reason is partly insufficient understanding of the underlying processes, but also the challenge of transforming state-of-the art knowledge on the process scale into computationally fast and well-evaluated parameterizations that can be used in ESMs. In this project, an interactive DMS emission will be implemented in a state-of-the-art ESM (the NorESM). The selected candidate will investigate how the updated treatment of DMS emission parameterization in NorESM affects the natural aerosol background concentration in a changing climate.

 

  How to apply:

Applications should be written in English and must include a CV and a full list of peer-reviewed publications and a brief letter (max. one page) explaining the motivation for applying for the position. The application should also include copies of relevant examination certificates and contact information of at least two reference persons.

More information and application:

Øyvind Seland, Norwegian Meteorological Institute - This email address is being protected from spambots. You need JavaScript enabled to view it.

Annica Ekman, Department of Meteorology, Stockholm University – This email address is being protected from spambots. You need JavaScript enabled to view it.

Application deadline: 1. August 2012

Application closed !

 


 

PhD fellowship on 'Formation, occurrence and climate effects of organosulfates in Nordic and Arctic aerosols'

 Starting date: 1. October 2012

Duration: 36 months

Place of work:Aarhus University, Department of Chemistry (the project includes longer stays at University of Stockholm, Sweden as well as Finnish Meteorological Institute and University of Helsinki, Finland)  

Research area and project description:

The project will investigate the biosphere-atmosphere-cryosphere interaction and feedback mechanisms occurring through formation of organosulfates. Organosulfates (OS) of biogenic oxidation products may be key compounds in atmospheric aerosol condensational growth and the coupling between air pollution and biogenic secondary aerosols. The present project will investigate the origin and occurrence of OS in aerosols from Nordic and Arctic areas, in order to expand the knowledge on formation mechanisms, speciation, and concentration levels, as well as influence on aerosol growth and ability of the aerosols to act as cloud condensation nuclei (CCN).

Project activities include: aerosol sampling at several Nordic and Arctic sites, method development and analysis by high performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry, synthesis of 2-3 authentic OS standards, data analysis and writing of publications. Data analysis will include other concomitant measurements and air-mass back trajectories. Further investigation of source regions and conditions affecting OS formation could be aided by collaboration with atmospheric modelling groups. Data analysis will be done in close collaboration with researchers from Stockholm University, Sweden as well as Finnish Meteorological Institute and University of Helsinki, Finland, which is facilitated by longer research stays at both sites.

Qualifications and specific competences:

Applicants to the PhD position must have a relevant Master’s degree, preferably in chemistry, with excellent qualifications within organic analytical chemistry and atmospheric chemistry of organic aerosols.

Contacts:

Applicants seeking further information are invited to contact:

Associate Professor Marianne Glasius - This email address is being protected from spambots. You need JavaScript enabled to view it.

Application procedures:

Please apply for this specific project here

Choose August 2012 Call with deadline 1 August 2012.

You will be directed to the call, and must choose the programme \'Formation, occurrence and climate effects of organosulfates in Nordic and Arctic aerosols\'.
Then you must fill out the information regarding: 

 

  • Personal information
  • Academic background
  • Admission
  • Financing (if any)
  • Study: In the dropdown menu you must choose the project: \"\'Formation, occurrence and climate effects of organosulfates in Nordic and Arctic aerosols\"
  • Source (how you found out about the call)
  • References (as a minimum 1 must be uploaded)
    Application material (pdf only, max 20 MB, no zip): Motivation, CV, Diploma and transcript of records, project description

 

Please be aware that you cannot save the application and continue working on it later. Therefore, you must have all relevant appendices, attachments, addresses for referees, etc. ready when you apply, as the entire application must be uploaded to the system in one go.

As a minimum you need to upload the application material:

  • one reference letter
  • curriculum vitae,
  • motivation (max. 1 page)
  • transcripts and diploma(s) in one merged file. Please enter your unweighted grade average calculated and based on your transcript’s grading scale, BSc and MSc separately.
  • project description (½-4 pages) For technical reasons, you must upload a project description. When - as here - you apply for a specific project, please simply copy the project description above, and upload it as a PDF in the application

You cannot submit the application if one or several of these documents have not been uploaded.

Deadline for application: 1. of August 2012.

  Application closed !

 


 

 Visiting senior scientist on "Long-range transported aerosols to the high Arctic"

Starting date: 01.10.2012

Duration of the project: 1.5 months

Place of work: Oslo University, Department of Geosciences, Oslo, Norway.

 Description of the subject area:

Aarhus University is heading a research station (St. Nord) in Northern Greenland (81o 36\' N, 16o 40\' W at 6 m ASL). Long-range transport of aerosols originated from Europe and Asia is observed at the station during the polluted season (winter/spring) every year, which is assigned to a significant increase in pollutant concentrations.

At St. Nord measurements of meteorology, the chemical composition and the physical properties of the observed aerosol are carried out. In detail, investigations of the particle number size distribution and the absorbing potential of the transported particles are carried out since 2008.
In this project we plan to further analyze data with respect to physical particle parameters obtained at St. Nord. The analysis of the comprehensive dataset will gain information on the transport of polluted air masses from Europe and Asia to the station. Additionally, the position will include some lectures to students in atmospheric physics at Oslo University. The candidate is expected to benefit from the visit as further co-operations with other research institutions (CRAICC partners: NILU, Norwegian Institute for Air Research; met.no, The Norwegian Meteorological Institute) that are located in the Oslo area will be established. 

The project fits within work package 4 of the CRAICC project, which is assigned to the fate of short-lived climate forcers and their interaction with the cryosphere.

 How to apply:

Applications should be written in English and must include a CV and a full list of peer-reviewed publications and a brief letter (max. one page) explaining the motivation for applying for the position.

 More information and application:

Henrik Skov, Aarhus University, Department of Environmental Science - This email address is being protected from spambots. You need JavaScript enabled to view it.
Jon Egill Kristjansson, Oslo University, Department of Geosciences - This email address is being protected from spambots. You need JavaScript enabled to view it.

Application deadline: 30.07. 2012

Application closed !

 


 

Visiting senior scientist on "Measurements and modeling of the atmospheric boundary layer structure in the high-Arctic ((Station Nord at 81.3 N)".

Starting date, duration: 1.6.2012 or as agreed upon, 3 months

Description of the subject area:

The project has as starting point measurements carried out at the high-Arctic Station Nord in Greenland which serves as a background station for air pollution.  In the project the meteorological measurements at Station Nord will be analyzed, including the formation of the boundary layer height from the ceilometer data as well as from the radiosoundings. The meteorological conditions will be modeled with the WRF/(WRF-Chem) model in its analysis mode (not forecast) for as a minimum the intensive campaign in order to investigate the skill for prediction of the temperature and boundary-layer characteristics. The joint analysis of the chemical and atmospheric measurements will be performed by Risø DTU, FMI and Aarhus University. The project is part of an ongoing collaboration with Aarhus University on long lived greenhouse gases at the Arctic, and will involve FMI in the data analysis.

How to apply:  The application should be written in English and should include a description of the applicant and her/his research interests. It should also include a CV, copies of relevant examination certificates and contact information of at least two reference persons.

More information and applications:

Sven-Erik Gryning ( This email address is being protected from spambots. You need JavaScript enabled to view it.)

Application deadline: 15. April 2012

Application closed !

 


 

Doctoral student position on “Energy exchange and DOC production in boreal forests in relation to cryosphere processes” at the University of Helsinki

Starting date, duration: 1.1.2012 or at the earliest convenience, 3 years

  Description of the subject area:
The runoff of northern rivers has been increasing over the last decades. It is not well understood what are the hydrological drivers of this increase and to what extend cryosphere and biosphere processes contribute to this. This may have implications for the carbon balance of the north since large quantities of dissolved organic matter are transported to the oceans by these river systems.

We are currently searching a doctoral student for our project “Energy exchange and DOC production in boreal forests in relation to cryosphere processes”. The project will use modelling approaches to understand the carbon balance of northern catchments by integrating in innovative ways existing data sources. The student would be based at the University of Helsinki, but would be expected to pass longer periods at the Norwegian University of Applied Sciences and Technology in Trondheim.

We search for students with a background in any related discipline. We appreciate good skills to express yourselves in English, understanding of biogeochemical cycles, in particular the water cycle and carbon cycles and the capacity to efficiently analyze large datasets.

How to apply: The positions would be remunerated by a grant of 17000 Euros per year. Review of applications will start on the 1. December 2011 and continue until a suitable candidate is found. Tuition is free at the University of Helsinki. The University of Helsinki has been ranked as one of the 100 best research Universities worldwide and the position will be part of the Nordic Centre of Excellence CRAICC. The position would start on the 1.1.2012 or at the earliest convenience. Please include a letter of motivation, a short CV and the names and email addresses of three references.

More information and application:

Dr. Frank Berninger, This email address is being protected from spambots. You need JavaScript enabled to view it.This email address is being protected from spambots. You need JavaScript enabled to view it., phone (+358408532944)

Application closed !

 


 

PhD–student fellowship on ‘Data Analysis and Regional Scale Modeling of Arctic Aerosol’ the University of Eastern Finland

  Starting date, duration: 1.3.2012, 3 years

Description of the topic and subject area:
Aerosol particles are involved in Arctic surface-atmosphere feedbacks e.g. via cloud processes. To quantify the sources of different types of Arctic aerosols – primary vs. secondary, locally emitted vs. long range transported, both long-term and campaign-wise measurements are needed, together with regional scale modeling. The selected student will perform analysis of long-term data of aerosol size distributions and supporting meteorological and gas-phase measurements recorded at the Puijo station in Kuopio, as well as at other Arctic and continental European stations. The student will also participate in regional aerosol-climate modeling and model-data comparisons with the goal of quantifying Arctic aerosol sources.

How to apply: Cover letter and CV, names and email address of referee(s)

More information and applications: This email address is being protected from spambots. You need JavaScript enabled to view it.

Application deadline: 10.2.2012

Application closed !