2016 Data now available

2016 data are now posted (Jan-Mar) for Imnavait sites. Please refer to the metadata files to understand changes, or as always, feel free to contact us with questions. Thanks!
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2015 final data sets available

For Imnavait Cr sites, our final version 2015 data is now available for download via the data access tab. The IC_1993 Tussock site is missing flux data until mid-April due to technical difficulties. Please contact us with any questions, and thanks for your interest in our research.
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2015 data now available


After some delay this year there are now data posted from Imnavait Cr.  The Tussock site has fluxes beginning in April due to technical difficulties.  We are working to add the Jan-Apr period from that site at some point in the summer.

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Site visit report - Cherskiy 2014


In August we visited our sites in Cherskiy Russia again for annual maintenance and site characterization surveys.  We calibrated the CO2/H2O IRGAs and made some small repairs and adjustments to the other sensors.  The CO2 height profile system was improved by adding thermistors at each intake height, and the automatic calibration gas injector was fixed.  Vegetation in the tower footprint was compared against a rough map, delineating land cover and rough funtional type.  The tall tower footprint is quite large at ~1500m radius from tower.  We improved the map and made thaw depth measurements.  A publication of our findings from the Russian site is in the works, stay tuned!

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Site visit report - Cherskiy 2013


Repairs, calibrations and upgrades were made during late August at the Pleistocene Park tall tower near Cherskiy, Russia.  An automated CO2 height profile measurement system was installed to help assess the role of periodic CO2 storage in daily or hourly flux estimates.  During periods of low wind, such as commonly occur during night-time, turbulent mixing of CO2 can be reduced such that levels near the ground may differ from the concentration observed at the eddy covariance measurement height.   Our system will measure 5 different heights from 2m to 35m along the tower several times per hour.  This year looks to be the best yet in term of getting continuous high-quality flux measurements from this site, thanks to the efforts of our Russian colleagues. 

PPark tower


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