Tundra field work in winter

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To establish annual budgets for greenhouse gas fluxes is normally standard procedure, but for our Arctic ecosystems this has sometimes proven to be hard. Harsh weather conditions, inaccessible field sites and difficult terrain are obstacles scientists needs to deal with. During the project “Permafrost thaw – decadal responses to climate change” we follow three tussock tundra sites during, short time after and long time after permafrost thaw. The sites are located in the tundra areas near Abisko in the northern part of Sweden. Presently, researcher Dr. Mats P. Björkman and field assistant Hanna Axén are in the field capturing fluxes of methane and carbon dioxide at these sites. Despite temperature well below -20°C, the hard work is not the actually measurements, but the journey to reach the sites. The heavy loaded snow mobiles often get stuck on their way up the mountains, where the site at Latnjajaure is about 1000 m above sea-level, resulting in a lot of snow digging and frustration.

/Mats P. Björkman – APE@GU the tundra part of BLUES


Successful PhD course

The PhD course on Greenhouse gases (GHG) at the Skogaryd Research Catchment was finished by an excursion to the ICOS site Hyltemossa in Scania. During the intensive one-week course 14 enthusiastic PhD (and MSc) students learned how to measure GHG emissions. Now they traveled back to their home universities to apply the learned to their research projects.


Measuring GHG emissions from soil and trees

PhD students learning about different methodologies to measure greenhouse gas (GHG) emissions. Research Engineer Per Weslien demonstrates a laser instrument for measuring nitrous oxide;  Dr. Mari Pihlatie demonstrates that even trees emit GHGs; visiting the Micro-meteorological equipment at Mycklemossen; Prof. Janne Rinne uses the Automated SkyLine2D system to measure 13C isotope in methane.

Greenhouse gas PhD course

This week we are having the PhD course ”Greenhouse gases – biogeochemistry and measurement techniques in ecosystems and landscapes” at the SITES infrastructure Skogaryd Research Catchment, organized bu the Biogeochemistry Group.  PhD students from Sweden and abroad learn about eddy covariance, chamber techniques, stable isotopes and much more.

Computer exercise at ”Hemmet”, hands-on experience with eddy covariance data and footprint modelling.

The course is part of the ClimBEco Graduate School.

A lot of snow

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We just got back to Abisko Scientific Research station after our initial field trip of the season.

The late spring up here has resulted in a lot of snow and still frozen ground on our sites. Creative thinking, nice weather and a good field team still made the fieldwork successful.

/ Mats P. Björkman – the Alpine & Polar Ecology group of BLUES

Field season starts!


Mats P. Björkman, Haldor Lorimer-Olsson and Argus Pesqueda have headed up to Latnjajaure Field Station west of Abisko to start up this field season. It’s the second field season in the project ”Permafrost thaw – decadal responses to climate change”. If you want some flash backs from last year field work with Alpine and Polar Ecology group of BLUES see these posts:

Fieldwork in Abisko

At last some work

Tent camp at Corrvosjaure

Calf marking at Corrvosjaure

Flux measurements at Corrvosjaure

Back in a sunny Tarfala

On the other side of Träsket

Kebnekaise from its best

Birches on the tundra

Dendrochronology?! On that?????

Last fieldwork for the season

Rain, snow and a bit of sun

– the Alpine and Polar Ecology group of BLUES