Rapid response of greenhouse gas emission to early spring thaw in a subarctic mire as shown by micrometeorological techniques

Details Rapid response of greenhouse gas emission to early spring thaw in a subarctic mire as shown by micrometeorological techniques Rapid response of greenhouse gas emission to early spring thaw in a subarctic mire as shown by micrometeorological techniques

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997georl..24.3061f&link_type=abstract

Geophysical Research Letters, Volume 24, Issue 23, p. 3061-3064

Physics

21

Global Change, Meteorology And Atmospheric Dynamics: Land/Atmosphere Interactions, Global Change: General Or Miscellaneous, Global Change: Biogeochemical Processes

Scientific paper

Most studies of soil/atmosphere greenhouse gas exchange in Arctic and Sub-Arctic wetlands have been conducted by the use of small scale chamber techniques during the growing season. To improve the knowledge about the processes in the transition period from winter to growth season, an experiment is presented here showing measurements of CH4, CO2 and H2O using both chambers (only CH4) and eddy correlation technique from the thaw period in early spring and during mid summer. The emphasis is on a comparison between eddy correlation and chamber measurements of methane fluxes during spring thawing in a subarctic mire near Abisko, northern Sweden. Methane exchange as measured by the two techniques is compared and evaluated in relation to temperature variations and atmospheric conductance. During the thaw period, integrated daily net fluxes of CH4 flux showed emission rates increasing from 2.6mgm-2d-1 to 22.5mgm-2d-1 within four days; the later rate corresponding to approximately 25% of the mid-summer flux. A profound diurnal cycle was observed in the release of methane, emphasising the importance of continuous measurements when calculating integrated fluxes.

Affiliated with

Also associated with

No associations

Rating

Rapid response of greenhouse gas emission to early spring thaw in a subarctic mire as shown by micrometeorological techniques does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Rapid response of greenhouse gas emission to early spring thaw in a subarctic mire as shown by micrometeorological techniques, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rapid response of greenhouse gas emission to early spring thaw in a subarctic mire as shown by micrometeorological techniques will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-894296