Utlysning: Early Career Scientists program on board Oden 2022

Isbrytaren Oden under expeditionen SAS 2021. Foto: Maria Samuelsson

The Swedish Polar Research Secretariat invites Early Career Scientists with Swedish affiliation to take part in a research expedition onboard the Swedish icebreaker Oden to the Lomonosov Ridge. Oden will be part of Expedition 377, Arctic Ocean Paleoceanography (ArcOP), under the International Ocean Discovery Program (IODP). Preliminary dates for the expedition are 1 August–20 September 2022.

Open for Early Career Scientists

An Early Career Scientist (ECS) is here defined as a Postgraduate (PhD) Student, Master's Student, or a Scientist who has received a PhD degree within the past seven years. A Swedish affiliation means that the applicant should be employed by, or have other strong connections (describe and motivate in application) to, a Swedish university, university college, research institute or agency.

Senior Scientist

Besides Early Career Scientists, this call also has one open position for a Senior Scientist regarding
WP 3; focusing on sampling from air and the continuous sea water intake, ferrybox, incubations, mast in the bow and, if possible due to the ice management, shallow CTD casts and ice stations. The Senior Scientist should have a wide experience as a supervisor and from research in a marine environment.

Background to ArcOP 2022

The overall goal of the proposed drilling campaign is the recovery of a continuous stratigraphic record of the long-term Cenozoic climate history of the central Arctic Ocean. This sedimentary sequence from the central Arctic Ocean will be studied to answer several key questions focusing on climate history, for more information visit the ArcOP expedition webpage. To summarize the operational setup of the expedition, there will be three vessels with different tasks, but the same mission: to sample sediments from a depth of 900 meters. To be able to achieve the sediment cores, the drilling ship, Dina Polaris has to be on site for approximately 30 days. During the drilling activities, it is of utmost importance that Dina Polaris is protected from drifting sea ice. The ice management will be done by the Russian icebreaker Victor Chernomyrdin and I/B Oden.

Victor Chernomyrdin will break the ice a large distance from the drilling vessel, while Oden will be located closer to Dina Polaris to break up the small ice floes. This means that it is not possible to plan for a comprehensive science deployment onboard Oden since there will be very limited (if any) ship-time dedicated for sampling that cannot be done underway. Additionally, both water and air might be contaminated by the other vessels in the vicinity. Still, there are possibilities for an opportunistic approach to data sampling and identified possible work packages are described below.

The drill vessel, Dina Polaris, will be protected from larger ice floes by the two icebreakers Oden and Victor Chernomyrdin
The drilling vessel, Dina Polaris, will be protected from larger ice floes by the two icebreakers Oden and Victor Chernomyrdin.

Early Career Scientists program

The Early Career Scientists program will be running parallel to the ArcOP 2022 activities on board. The program will include training in polar marine field methods and optionally enhance the participant’s research project. The data from the Early Career Scientists program will be published as open data for public use. The opportunity to participate will be connected to one of three identified work packages, each with a senior researcher as a mentor.

The applicant should previously have been involved in marine and/or polar sciences and should motivate how participation in the expedition could benefit the applicant’s research project and/or research career.

Work package 1: Geophysical mapping & water column imaging (Senior Scientist: Martin Jakobsson)

Work package 2: Boundary-layer meteorology/Surface energy budget (Senior Scientist: Michael Tjernström)

Work package 3: A flexible project focusing on sampling from air and the continuous seawater intake, ferrybox, incubations, mast in the bow and, if possible due to the ice management, shallow CTD casts and ice stations. Research topics could for example be; trace gases, biology and projects not affected by the disturbance from the other vessels in the vicinity, i.e. air pollutants and water mixture. (Senior Scientist: Open Position)

Additional sampling that will be possible during the expedition:

- dirty ice; sediments (Kirsten St John)
- fish (Pauline Snoeijs Leijonmalm)
- buouys (Michael Tjernström)

Application and selection

The Swedish Polar Research Secretariat will evaluate the applications and make the final decisions, using the mentors as an expert panel. The Secretariat strives for balance between gender, disciplines and affiliations. The selected group should be relatively “self-going” and a balance between experience and training is necessary to achieve the goals of the program. Projects that cross over more than one work package are welcome. All prospective participants must do a medical screening before final selection.

The Swedish Polar Research Secretariat will cover travel and participation costs in the mandatory Oden Safety Course, travel costs to/from Sweden, the embarking/disembarking port and living costs onboard Oden. Salary or per diem will not be covered.

Application

Please send your application by e-mail to office@polar.se, use subject: Application for Early Career Scientist Program Oden 2022 Dnr 2022-18

Submit your application before 1 March 2022 with the following attachments:

• Description of current research
• CV
• Letter of Support from your Supervisor and/or Head of Department

Contact

If you have questions about a specific work package, contact the mentor, see contact details in the work package descriptions. If you have general questions regarding the expedition, this call or similar, please contact the coordinator of research support at the Secretariat, Åsa Lindgren, asa.lindgren@polar.se, +46 70 785 56 01.

This call is in line with the Swedish Polar Research Secretariat’s aim to promote and support Early Career Scientists in close cooperation with the Association of Polar Early Career Scientists (APECS Sweden).

Work package descriptions

WP 1: Geophysical mapping & Water Column Imaging

Mentor: To be announced

E-mail:

Phone:

The geophysical mapping program onboard IB Oden aims to continuously map the seafloor and uppermost ca 50-100 m sediment stratigraphy as well as acoustically image the water column along the entire expedition track. IB Oden’s is equipped with a Kongsberg EM122 (12 kHz) hull-mounted multi-beam echo sounder and integrated SBP120 (3-7 kHz) chirp sub-bottom profiler. Acoustic information of the water column is acquired with the EM122 as well as with a hull-mounted Kongsberg EK60 (18 kHz) split-beam sonar. You are expected to be a part of the multibeam operation team that operates all sonars 24 hours a day, from start to end of the expedition following a watch schedule. There will be at least two experienced multibeam operators onboard for technical support. These experienced operators will take part in the watch schedule and have a supervising role onboard. The seafloor and sub-bottom information will serve as input for the evaluation of suitable coring sites along the cruise track. This implies that the Early Career Scientist will be engaged in the geophysical mapping and water column imaging work package and are expected to collaborate with the coring team. The multibeam echo sounder requires corrections for sound speed changes in the water column. This will be provided from data generated at oceanographic stations using a standard CTD, requiring collaboration with the physical oceanography work package. In addition, XBTs (eXpendable BathyThermographs) will be used when necessary. Quality check and initial post-processing of all the acquired data will be carried out onboard using the software Quimera by QPS. Project proposals that make use of data from any, or all, of the acoustics systems are welcome.


WP 2
: Boundary-layer meteorology/Surface energy budget

Mentor: Michael Tjernström

E-mail: michaelt@misu.su.se

Phone: +468163110 Mobile: +46702056631

The aim of the observations is to determine the surface energy budget over ice or open water, depending on the conditions, i.e. how heat energy, water and momentum are exchanged between the atmosphere and the ocean/sea ice and how this exchange is coupled to the vertical structure of the troposphere, especially its lower parts – the so-called atmospheric boundary layer. Hence, this data is linked into a meteorological context by also observing general meteorology and the occurrence and characteristics of clouds and information on the vertical structure of the lower atmosphere.

The observations making this possible will be conducted by deploying in-situ and remote sensing instruments in a mast erected at the front of Oden, on the roof of a 4th deck container and on the 7th deck. These observations are continuous; they will be performed and logged automatically throughout the expedition. The instruments for the most part work independently but they need to be monitored and maintained. There may also be radiosoundings by balloon-borne instruments launched regularly from the helicopter deck, preferably 2-4 times per day depending on manpower.

The energy flux observations on Oden's foredeck mast will be performed by so-called "eddy correlation" or turbulence observations. The temperature, moisture and three-dimensional wind of the atmosphere are measured at 20 Hz (20 times per second) and the results are correlated with each other. On the 4th deck container are two key instruments, a vertically pointing motion-stabilized Doppler radar for observations of clouds and a scanning multichannel microwave radiometer for integrated water vapour, cloud liquid water and profiles of temperature and moisture. On the 7th deck, there will be a regular weather station for normal surface meteorology (wind, pressure, temperature and humidity) and additionally, observations of incoming solar and thermal radiation, as well as clouds and visibility, observed using different lidars. Some other instruments will also be deployed at the 7th deck, for example, downward-looking infrared thermometers mounted on the ship’s wings to observe the surface temperature of the ocean or ice and web-cams to document the characteristics of the surface.

 

WP 3: TBD; open for applicants to modify