SITES_bård 160701-4

We are building a new ‘staff’ house at Tarfala Research Station. It includes 7 bedrooms, an office, bathroom and drying-room and will hopefully be ready by mid-July. It is a sturdy construction which is necessary to withstand the hurricane force winds that most often occur during winter. However, this year we were exposed to winds up to 40m/s and snowdrift at the end of June, which is unusual and not very pleasant! For the glaciers it meant an extra snow contribution to the mass balance.
Photografer: Gunhild Rosqvist.

First measurement round on the upper part of Storglaciären 9th July. Here we monitor the successive snow and ice melt during the summer. Photografer:Tom Kirkpatrick

Checking the automatic weather station located at 1350 m a sl on Storglaciären. The Sonic Ranger (SR50) instrument is in focus which measures the distance to the snow surface. Photografer:Tom Kirkpatrick

SITES Water
Calibration for discharge measurements in the Tarfala-river. Pressure transducers and a sonar-instrument are used to measure water-pressure and distance to the water surface in the Tarfala-river. Calibration using fluorescein provides data on water discharge out from the Tarfala valley. Four glaciers contribute with meltwater to the river.

SITES Spectral
NDVI sensors are now mounted in Laevasvagge. The valley is located 20 km northeast of Tarfala and is important for reindeer grazing during spring and autumn. Here an automatic weather station records several meteorological parameters including snow depth.

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New SMHI SYNOP-station at the Abisko Scientific Research Station. Photographer: Annika Kristofferson. New SMHI SYNOP-station at the Abisko Scientific Research Station. Photographer: Annika Kristofferson.

In a collaboration between the Swedish Meteorological and Hydrological Institute and the Swedish Polar Research Secretariat, Abisko is now a part of the extensive network of SYNOP-stations covering Sweden. The weather station is placed on the Observation hill at the Abisko Scientific Research Station, where the station’s own weather monitoring has been going on since 1913.
 
 

New SMHI SYNOP-station at the Abisko Scientific Research Station. Photographer: Annika Kristofferson. New SMHI SYNOP-station at the Abisko Scientific Research Station. Photographer: Annika Kristofferson.

The new SYNOP-station measures temperature, precipitation, air pressure, wind, air moisture, sight, and cloud-base height. The radiation sensors are in the process of being upgraded.
 
SYNOP observations from all of Sweden can be found at  https://www.smhi.se/vadret/vadret-i-sverige/observationer

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Micrometeorological installations at the Mycklemossen site. Photographer: Leif Klemedtsson. Micrometeorological installations at the Mycklemossen site. Photographer: Leif Klemedtsson.

We are currently working with the program for the 2nd NORDIC ICOS Symposium that will take place in Gothenburg on the 24th-25th of October with focus on “Sources and sinks of greenhouse gases in the Nordic countries”. The mire “Mycklemossen” that is part of the Skogaryd Sites station will apply to be the new ICOS site for University of Gothenburg and the old Lanna site will then be downgraded to an “associated site”. The reason being that the fluxes of N2O at Lanna are low, below the detection limit by the instrumentation used within ICOS, and thus only short turn peak emissions can be detected. ICOS-Sweden did not have any hemi-boreal/temperate mires in their measuring program and the Mycklemossen well represents the mires in the southern parts of Sweden. It has been monitored by SITES since 2013 and the greenhouse gas fluxes has been dramatically affected by the drought events the current years, which resulted in net CO2 emission, low CH4 emissions and high DOC flows in the autumn. Intensive work is now ongoing in upgrading the site to a level 2 ICOS site, and the site will be presented at an excursion at the Symposium in October.

 

Removal of “trenching installations” to separate sources of soil respiration. Photographer: David Allbrand. Removal of “trenching installations” to separate sources of soil respiration. Photographer: David Allbrand.

On the forested drained peat site at Skogaryd, work has started to allow harvest. After clear-cutting, parts of the site will be re-wetted and fluxes of GHG and mercury will continue to be monitored. This site is one of the most well studied afforested drained organic soils in terms of greenhouse gas flux and processes related the flux. The scaffold tower was taken down last year. Now the old “soil installations”, (frames used to separate root/mycorrhiza respiration from soil organic matter respiration) are removed, since they will not be in use when this part of the site is flooded.

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Jointly organized by NENUN/AMRI/SITES
Date: September 26-27 2019

The 2019 Nordic meeting in Molecular Microbial Ecology will gather researchers and students interested in environmental microbiology and advanced molecular tools for understanding complex microbial systems.

Building on the history of yearly NENUN-meetings and expanded scientific networks from the SciLifeLab Aquatic Microbiome Research Inititative (AMRI) and the Swedish Infrastructure for Ecosystem Science (SITES), we aim to create an interactive and stimulating 2-day forum for exchanging our most recent findings pertaining to the biology of microorganisms in the environment. With a welcoming atmosphere, a handful of invited speakers, contributed talks and ample time for informal discussions, we expect the meeting to promote collaboration strengthen the research field at large. 

Welcome to Uppsala!
 
More information and registration here.

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The main inlet of lake Erken. Photographer: William Colom. The main inlet of lake Erken. Photographer: William Colom.

The Erken station has recently finished the upgrade of the Kristineholm automatic monitoring station located at the main inlet of lake Erken.

Measurement of coloured dissolved organic matter (cDOM) in the stream water. Photographer: Don Pierson. Measurement of coloured dissolved organic matter (cDOM) in the stream water. Photographer: Don Pierson.

This station provides data on stream stage/discharge, water and air temperature, CDOM and conductivity. The renovation included upgrades to a new data logger and communication system to achieve direct real-time online communication and the installation of a new water temperature thermocouple.  Finally, a new bio-wiper fluorometer was deployed into an aquarium into which stream water is pumped hourly to be able to enable consistent anti-fouling proof measurement of colored dissolved organic matter in the stream water.

Example of data output of discharge and cDOM measurements. Don Pierson. Example of data output of discharge and cDOM measurements. Don Pierson.
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