Ny-Ålesund Atmosphere Flagship open work group meetings
The Ny-Ålesund Atmosphere Flagship received funding from Svalbard Strategic Grant to arrange work group meeting in the work groups defining the flagships activities.
Since some working group meetings will attract the same scientists we have chosen to arrange the meetings back-to-back on the week 3–7 October 2016 in the Research Park in Kjeller, outside Oslo, Norway.
The registration deadline was 1 September.
Monday 3 Oct
WG1 & WG5
Tuesday 4 Oct
Before lunch: WG1 & WG5
After lunch: Planning common field campaigns 2017
Evening: WG meeting dinner
Wednesday 5 Oct
Thursday 6 Oct
Friday 7 Oct
Parallel session WG3 & WG6
The format of the meetings will differ due to the needs of the different working groups. The program is set up by the leader of each working group:
WG1 & WG5: Atmospheric aerosols and Clouds
(Lead Aerosols: , NIPR and H.C. Hansson SU)
(Lead Clouds: , SU)
Atmospheric aerosols and clouds are an important part of research activities for many groups in Atmospheric Flagship program. It covers wide spectra of methods using both, in-situ and remote sensing methods. Because the subjects of WG1 and WG5 are closely linked together intercept at many points and involve often same people, both WGs will meet in a join session.
Aims of WG1 & WG5 meeting:
- Investigate aerosol and cloud observations with respect to join analysis. What are the main scientific questions and goals we want to jointly study? What we can learn about processes controlling aerosols and clouds and long-term trends from measurements at Zeppelin station and observations at Ny Ålesund?
- What do we need to complete the observations and analysis with respect to aerosol life cycle, cloud formation, radiation and hydrological cycle & removal processes?
- What supporting information and links to other WGs are needed?
- How we can establish a system of near on-line information for the community about "special events"
- Upcoming activities and campaigns, national and international. How we can contribute to each other's work towards addressing the scientific questions we want to answer?
Participants are kindly asked to prepare short presentations (10–15 minutes) which should include the status of their work, but mainly challenging questions and ideas for work we can do together exploiting the full potential of Ny-Ålesund scientific community and infrastructure available. We would like to ask you to send us summary of the scientific questions and goals you see as important for future work within WG1 & WG5 by the end of September 2016. Based on this we will prepare the structure of the meeting and mainly discussion part of it.
WG2: Long-term observations and trends in temperature, precipitation, clouds and radiation
(Lead: , AWI)
The purpose of WG2 is to address observed trends in various climate parameters. Under the Atmospheric Flagship Program, added value should be given to individual long-term observations by combination with others, also interdisciplinary, and by the attempt for joint analysis including e.g. different observation sites or model approaches.
As WG2 focusses on trend analysis, the relevant long-term observations are quality-controlled datasets (e.g. following quality and calibration standards of an international network) with a data record of least 10 years. Shorter time-series with the goal to become long-term observations are welcome, but are currently not the scope of this WG.
Participants are requested to provide very brief (5 min) presentations of long-term observed parameters and their trend. Explicitly encouraged are trend observations of temperature, humidity, precipitation, snow cover, clouds, aerosols and radiation, as well as Kongsfjord sea ice cover and water temperature, permafrost, fluxes. It is planned to bring up all known trend observations from Ny-Ålesund and other Svalbard sites, and to discuss their interrelation. Ideally, joint analyses including climate modelling will arise from the WG2-workshop.
WG3: Boundary layer meteorology
(Lead: , AWI)
The Boundary Layer (BL) is the part of the atmosphere in which exchange of heat, traces gases and moisture with the ground occurs. This lowest layer of the atmosphere is difficult to describe precisely in climate models. In Ny-Ålesund additionally the orography leads to a complex wind shear pattern and the different terrain types with their individual humidity and heat capacity lead to distinct micrometeorological phenomena. Generally, turbulent fluxes during stable conditions are small, hence in a long-term perspective, similar instrumentation, calibration and evaluation schemata are desired.
On the other hand different stations have already years of experience in BL research in Ny-Ålesund. New partners will follow soon. For this reason WG-3 tries to bring together the research in this area with the aim to better coordinate activities. Joint future campaigns for process studies, the integration of new equipment into the existing infrastructure, a gap analysis, efforts for data comparability and joint publications shall be discussed. In order to obtain a representative data set on BL research for the Kongsfjord probably site specific micrometeorological considerations have to be addressed for each measurement complex. This discussion will hopefully guide a way how a comparison to modelling can be performed, links to the WG-s of snow and clouds and evolves our understanding of the representativeness of Ny-Ålesund.
WG4: Aerosols (black carbon) and snow, including snow albedo feedback
(Lead , CNRS)
Snow plays a crucial role in the regional climate of the Arctic and contributes to the so-called Arctic Amplification, i.e. a stronger warming compared to the rest of the globe. To better understand and quantify the role of snow based on observations in Svalbard, WG4 will address two objectives. First, presentations on observations and studies regarding the role and the behavior of impurities in the snow are invited. This concerns mainly black carbon, but also studies of other absorbing or non-absorbing impurities. The goal is to improve our understanding of the interaction between the atmosphere and the snow including deposition and emission, of post-depositional processes, of the impact of the presence of impurities on snow properties like the albedo, and of long-term trends derived from observations and ice cores. The second objective concerns the development of comprehensive data sets of long-term snow observations in Svalbard. Therefore, we invite presentations on past and current observations of snow parameters including the obtained data, the data quality and accessibility, and the performed analysis. The WG will discuss if and how future snow observations can be better coordinated, if a common analysis can be performed, and how the available data can be disseminated. The issue of observed long-term trends in the observed snow properties will also be addressed and forms a link to the activities of WG2.
WG6: Variability in surface UV irradiance and ozone column
WG6 aims to analyze the short and medium term variations observed in the surface UV irradiance and ozone column at Svalbard during the last decades since the polar night limits the continuous yearly measurements of the solar radiation that makes the trends and long-period oscillations difficult to examine. It is expected to study the data records yielded at Ny-Ålesund by different instruments and, as a first step, to compare them to each other and also with the corresponding measurements performed in Hornsund and Barentsburg. Further, the relationships between the UV and ozone variations on one hand, and environmental parameters provided by other measurement techniques or model estimations in the frame of the Atmospheric Flagship Program on the other hand, will be a subject of examinations.
It is planned to start the meeting with presentations of the available datasets together with the results achieved by different teams until now and continue with a discussion of the preliminary joint analysis and the further work of the WG6.
Attendance is free of charge. Coffee breaks, lunches, and a common dinner on Tuesday is included.
If you require support for travel and hotel, please contact Christina and indicate the approximate costs of your travel including hotel as soon as possible, and at the latest 8 August. Please also indicate the working group(s) you would like to participate in.
We will in the best manner distribute the available funds between the scientists needing this.
Participants need to make reservations themselves.
We have pre-reserved rooms at two nearby hotels until 1 September 2016. If you want to take advantage of this offer, please book your room directly to the hotel using the reference codes given below.
30 rooms at
Thon Hotel Lillestrøm,
Tel: +47 66 93 63 30
Dir: +47 66 93 63 41
Price per night NOK 1215 (incl. breakfast)
Reference code: 030116NILU
20 rooms at
Best Western Fagerborg Hotel,
Tel: +47 64 84 74 00
Price per night NOK 980 (incl. breakfast)
Reference code: NILU
Contact persons for each WG meeting
- WG1: Clouds, humidity, precipitation (Lead: , NIPR; H.C. Hansson SU)
- WG2: Long-term observations and trends in temperature, precipitation, clouds and radiation (lead: , AWI)
- WG3: Boundary layer meteorology (lead: , AWI; A. Viola, CNR)
- WG4: Aerosols (black carbon) and snow, including snow albedo feedback (lead , CNRS; J.-C. Gallet, NPI)
- WG5: Atmospheric aerosols (lead: , SU)
- WG6: Variability in surface UV irradiance and ozone column (lead: CNR)