Air‐sea gas transfer in high Arctic fjords
(2017) In Geophysical Research Letters 44. p.2519-2526- Abstract
- In Arctic fjords and high‐latitude seas, strong surface cooling dominates during a large part of the year, generating water‐side convection (w* w) and enhanced turbulence in the water. These regions are key areas for the global carbon cycle; thus, a correct description of their air‐sea gas exchange is crucial. CO2 data were measured via the eddy covariance technique in marine Arctic conditions and reveal that water‐side convection has a major impact on the gas transfer velocity. This is observed even at wind speeds as high as 9 m s−1, where convective motions are generally thought to be suppressed by wind‐driven turbulence. The enhanced air‐sea transfer of CO2 caused by water‐side convection nearly doubled the CO2 uptake; after scaled to... (More)
- In Arctic fjords and high‐latitude seas, strong surface cooling dominates during a large part of the year, generating water‐side convection (w* w) and enhanced turbulence in the water. These regions are key areas for the global carbon cycle; thus, a correct description of their air‐sea gas exchange is crucial. CO2 data were measured via the eddy covariance technique in marine Arctic conditions and reveal that water‐side convection has a major impact on the gas transfer velocity. This is observed even at wind speeds as high as 9 m s−1, where convective motions are generally thought to be suppressed by wind‐driven turbulence. The enhanced air‐sea transfer of CO2 caused by water‐side convection nearly doubled the CO2 uptake; after scaled to open‐sea conditions the contribution from w* w to the CO2 flux remained as high as 34%. This phenomenon is expected to be highly important for the total carbon uptake in marine Arctic areas. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/b9368457-dfb6-4bbd-8aa7-ad7d2cb88ee7
- author
- Andersson, Andreas ; Falck, E. ; Sjöblom, A ; Kljun, Natascha LU ; Sahlee, E. ; Omar, A.M. and Rutgersson, A
- publishing date
- 2017-01-28
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Geophysical Research Letters
- volume
- 44
- pages
- 2519 - 2526
- publisher
- American Geophysical Union (AGU)
- external identifiers
-
- scopus:85014550684
- ISSN
- 1944-8007
- DOI
- 10.1002/2016GL072373
- language
- English
- LU publication?
- no
- id
- b9368457-dfb6-4bbd-8aa7-ad7d2cb88ee7
- date added to LUP
- 2018-04-16 15:02:22
- date last changed
- 2022-04-01 23:44:55
@article{b9368457-dfb6-4bbd-8aa7-ad7d2cb88ee7, abstract = {{In Arctic fjords and high‐latitude seas, strong surface cooling dominates during a large part of the year, generating water‐side convection (w* w) and enhanced turbulence in the water. These regions are key areas for the global carbon cycle; thus, a correct description of their air‐sea gas exchange is crucial. CO2 data were measured via the eddy covariance technique in marine Arctic conditions and reveal that water‐side convection has a major impact on the gas transfer velocity. This is observed even at wind speeds as high as 9 m s−1, where convective motions are generally thought to be suppressed by wind‐driven turbulence. The enhanced air‐sea transfer of CO2 caused by water‐side convection nearly doubled the CO2 uptake; after scaled to open‐sea conditions the contribution from w* w to the CO2 flux remained as high as 34%. This phenomenon is expected to be highly important for the total carbon uptake in marine Arctic areas.}}, author = {{Andersson, Andreas and Falck, E. and Sjöblom, A and Kljun, Natascha and Sahlee, E. and Omar, A.M. and Rutgersson, A}}, issn = {{1944-8007}}, language = {{eng}}, month = {{01}}, pages = {{2519--2526}}, publisher = {{American Geophysical Union (AGU)}}, series = {{Geophysical Research Letters}}, title = {{Air‐sea gas transfer in high Arctic fjords}}, url = {{http://dx.doi.org/10.1002/2016GL072373}}, doi = {{10.1002/2016GL072373}}, volume = {{44}}, year = {{2017}}, }