This blog post was co-authored by Dr. Julia Boike and her team and Zhila Rashidi (Eosense) Hot Spots in a cold land The Lena River Delta in northern Yakutia, northeast Siberia, Russia, is one of the largest catchment areas (2,430,000 km2) in the Arctic. Polygonal structures, which are common components of arctic Siberian wetlands, are […]
Last week Nick Nickerson, Chief Scientist at Eosense, attended the 1st annual ICOS Nordic Symposium at the Technical University of Denmark in Copenhagen. Over 60 researchers united in Denmark to represent ICOS stations in Norway, Sweden, Denmark and Finland. The latest updates from the ICOS Ocean, Atmosphere and Ecological themes were covered during the three-day conference […]
Introduction Measuring greenhouse gas emissions in natural and controlled ecosystems can be notoriously tricky, both because of spatial heterogeneity and the highly dynamic systems which are responding to drivers (temperature, moisture, sunlight, etc.) on multiple time scales. This often makes direct comparison between measurement locations and across differing flux measurement instruments and methodologies impractical, if […]
This blog post was co-authored by Dr. Julia Boike and her team (AWI) and Zhila Rashidi (Eosense) Polygonal ponds in Siberian permafrost and their effect on CO2 emissions The Lena River Delta in northern Yakutia, northeast Siberia, Russia, is one of the largest catchment areas (2,430,000 km2) in the Arctic. The bed of Lena Delta […]
Permafrost is a solid layer of frozen rock and soil which is mainly found in heart of Arctic, where the average annual temperature lies below ~23°F (-5° C). The Arctic tundra, with underlying permafrost, is stark and treeless all year around but in summer, the topmost layer of the permafrost melts, leaving behind soggy ground […]
Despite covering only 3% of the Earth’s surface, boreal and subarctic peatlands contain between 270 – 320 Tg of carbon, or about 34-46% of the carbon currently present in atmosphere – dominantly as CO2 (IPCC, 2007). Many of these peatlands began their lives after the last glacial maximum, following the retreat of glaciers from the […]
Many anthropogenic activities are significant sources of greenhouse gasses, however not all emissions are as easy to quantify as the direct burning of fossil fuels (e.g. for transportation or electricity). Other significant sources of greenhouse gasses including agriculture can be harder to quantify due to the increased number of variables involved. In Canada, this sector […]
Inland waters such as lakes and rivers are believed to be important areas for the transformation and exchange of carbon with the atmosphere; including the common greenhouse gas CO2. Even though research on these sites is growing, the diversity within sites makes it difficult to understand the general role of these areas in the global […]
I had the wonderful opportunity last week to skip what was hopefully Nova Scotia’s last snow day before summer and travel to Dallas, Texas; to take part in the inaugural Responsible Shale Energy Extraction Conference as a part of Earth Day Texas. The goal of this conference was to bring together scientists, advocates, citizens and […]
Naturally occurring, biologically productive wetlands are significant greenhouse gas contributors, producing roughly 25% of the world’s methane stock. This is a concern to scientists on a global scale, as methane has a Global Warming Potential (GWP) 25x greater than that of CO2. It is imperative to gas flux science to understand the contribution that wetlands […]