New instruments added to Imnavait Creek

In June 2012, we will be improving our research sites at Imnavait Cr with the addition of several sensors and webcams:

  • We will install an open path, fast-response methane analyzer at the Fen site.  This instrument will measure methane fluxes from the wet sedge tundra ecosystem at this site during the summer months and shoulder seasons.  This information can be combined with our existing CO2 monitoring and with streamflow carbon data to construct a comprehensive carbon budget for the Imnavait basin.
  • We will be testing a new hybrid closed path CO2/H2O analyzer at the Ridge site.  If the cold weather performance of this system is good, we anticipate better data coverage during the winter since the optical path is enclosed thereby avoiding ice and snow accumulation.
  • In order to record seasonal changes and create a visual record of plant phenology, we are installing webcams at each of the three Inmavait Cr sites.  The cameras will be mounted at ~3m, aimed downward at the vegetation with about 20% horizon, and capture several images per day.  Our existing Ridge webcam images, as well as those at nearby Toolik Field Station, have been used to monitor snow cover, animal migration, weather conditions for field work and aviation and for troubleshooting tower instruments.  The new images will be available on this website and also as part of the PhenoCam network.