ACTRIS Marketplace

The ambient air in Pallastunturi is amongst the cleanest in the World, with particle number concentrations reaching levels of 10 #/cm3 during cold winter days, and up to a few thousand #/cm3 during strong biological activity in the summer. This provides an excellent opportunity to study the atmospheric composition of sub-Arctic air, where climate change is affecting the atmospheric composition rapidly.

In addition to research services, the station offers excellent possibilities for instrument development and -testing in the low concentration, Arctic setting.

Virtual Access is offered to continuous measurements conducted for ACTRIS aerosol in situ-, trace gases in situ-, cloud in situ- and cloud remote sensing measurements. Pallastunturi also hosts an air quality background supersite fulfilling the requirements of the new European air quality guidelines. Physical- and remote Access for installing additional instruments at the station is provided.

The Pallastunturi facility offers a designated air space for research flights with e.g. UAV’s and tethered balloon systems. The airspace is horizontally 7km*7km, with 2km ceiling altitude above ground level. Flying beyond visual line of sight is permitted, making vertical measurements through clouds possible.

Physical access is provided to operate user’s own airborne platforms, or utilizing measurements with the FMI’s UAV- fleet. FMI’s measurements encompass ACTRIS aerosol in situ-, and cloud in situ measurements, as well as meteorological parameters.

Operations are supported by continuous measurements of e.g. surface meteorological conditions, cloud base height, boundary layer height and cloud remote sensing observations. The Sammaltunturi station measurements (565 a.s.l.) can be used as reference to airborne observations.

The opportunity is ideal for research on the vertical distribution of atmospheric composition in the sub-Arctic as well as instrument testing. 

Continuous real-time measurements of plant pollen in the background sub-Arctic atmosphere. The measurements are conducted with in-situ observations (using the Swissens Poleno Jupiter automatic pollen analyzer).

The comprehensive set of aerosol research instrumentations at the site can be used in intercomparisons of aerosol- and in-situ cloud instruments. The site has availability of field calibration equipment and a selection of calibration aerosols to perform field calibrations and intercomparison experiments of standard optical and size segregated aerosol measurements. Technical support for such exercises is also available.

The service consists of:

- Investigations of atmospheric processes in the gas- and particle phase

- Investigations of emissions from different combustion emission sources

 - Investigations of atmospheric aging od emissions from different combustion emission sources

- Investigations on toxicological properties of aged and fresh emissions

- Provision of data from experiments

- technical service to use own instruments

- training for planning, evaluation and interpretation of experiments 

- Testing and validating instruments

TIME CONSTRAINTS: None, although access has to be coordinated with other activities in laboratory

Calibration and audit of an ICOS station with ICOS mobile laboratory. 

TIME CONSTRAINTS: The service is available but must fit into the audit schedule of the ICOS mobile laboratory.

AVAILABILITY PERIOD: The service is available. Location is subject to change, due to the mobility of the ICOS mobile laboratory.

Deployment of the Atmo-Lab or CMLab to user-defined custom location. Requires coordination between user and service provider.

TIME CONSTRAINTS: Must fit into the deployment schedule of ATMO-Lab or CMLab

Deployment duration of > 1 month

Preparation and transport time must also be considered 

AVAILABILITY PERIOD: The service is available but must fit into the deployment schedule of ATMO-Lab or CMLab