Skip to Main content Skip to Navigation
Journal articles

Impact of Fraserdale CO 2 observations on annual flux inversion of the North American boreal region

Abstract : In TransCom-3 (Level 1), atmospheric CO 2 measurements from 76 monitoring stations for the period 1992-1996 and 16 atmospheric transport models were used to constrain annual mean CO 2 fluxes over 11 land and 11 ocean regions. The tower measurements of atmospheric CO 2 from Fraserdale, a continental site in northern Ontario, Canada are now available and processed for use in the TransCom-3 inverse modelling framework. In this short study, we show that by including this set of continental CO 2 data, the estimated flux for the North American boreal region becomes nearly zero, a reduction of about 0.26 Pg C yr −1 from the previous estimate. The uncertainty of the estimated flux for this region is also reduced by ∼30%. All transport models show negative changes for boreal North America, with the strongest responses (∼ −0.5 Pg C yr −1) shown by NIRE, NIES, CSU and SKYHI. Furthermore, models showing a strong response in boreal North America tend to show strong sensitivity in middle-and high-latitude Asian regions.
Complete list of metadatas

Cited literature [16 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-02924868
Contributor : Florence Aptel <>
Submitted on : Thursday, October 29, 2020 - 2:23:09 PM
Last modification on : Thursday, October 29, 2020 - 3:45:19 PM

File

qt2zq3871d.pdf
Publisher files allowed on an open archive

Identifiers

Collections

Citation

Chiu-Wai Yuen, Kaz Higuchi, D. Baker, Philippe Bousquet, L. Bruhwiler, et al.. Impact of Fraserdale CO 2 observations on annual flux inversion of the North American boreal region. Tellus B - Chemical and Physical Meteorology, Taylor & Francis, 2017, 57 (3), pp.203-209. ⟨10.3402/tellusb.v57i3.16541⟩. ⟨hal-02924868⟩

Share

Metrics

Record views

61

Files downloads

38