Recent changes in the global and regional carbon cycle: analysis of first-order diagnostics
Rayner, P. J. ; Stavert, A. ; Scholze, Marko LU
; Ahlström, Anders
LU
; Allison, C. E.
and Law, R. M.
(2015)
In Biogeosciences
12(3).
p.835-844
- Abstract
- We analyse global and regional changes in CO2 fluxes using two simple models, an airborne fraction of anthropogenic emissions and a linear relationship with CO2 concentrations. We show that both models are able to fit the non-anthropogenic (hereafter natural) flux over the length of the atmospheric concentration record. Analysis of the linear model (including its uncertainties) suggests no significant decrease in the response of the natural carbon cycle. Recent data points rather to an increase. We apply the same linear diagnostic to fluxes from atmospheric inversions. Flux responses show clear regional and seasonal patterns driven by terrestrial uptake in the northern summer. Ocean fluxes show little or no linear response. Terrestrial... (More)
- We analyse global and regional changes in CO2 fluxes using two simple models, an airborne fraction of anthropogenic emissions and a linear relationship with CO2 concentrations. We show that both models are able to fit the non-anthropogenic (hereafter natural) flux over the length of the atmospheric concentration record. Analysis of the linear model (including its uncertainties) suggests no significant decrease in the response of the natural carbon cycle. Recent data points rather to an increase. We apply the same linear diagnostic to fluxes from atmospheric inversions. Flux responses show clear regional and seasonal patterns driven by terrestrial uptake in the northern summer. Ocean fluxes show little or no linear response. Terrestrial models show clear responses, agreeing globally with the inversion responses, however the spatial structure is quite different, with dominant responses in the tropics rather than the northern extratropics. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/5274872
- author
- Rayner, P. J.
; Stavert, A.
; Scholze, Marko
LU
; Ahlström, Anders
LU
; Allison, C. E.
and Law, R. M.
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Biogeosciences
- volume
- 12
- issue
- 3
- pages
- 835 - 844
- publisher
- Copernicus GmbH
- external identifiers
-
- wos:000349793100014
- scopus:84922933930
- ISSN
- 1726-4189
- DOI
- 10.5194/bg-12-835-2015
- language
- English
- LU publication?
- yes
- id
- c5a3e9bc-2095-48c7-91bd-83ec1bd23cad (old id 5274872)
- alternative location
- http://www.biogeosciences.net/12/835/2015/
- date added to LUP
- 2016-04-01 10:31:45
- date last changed
- 2024-10-07 07:20:35
@article{c5a3e9bc-2095-48c7-91bd-83ec1bd23cad,
abstract = {{We analyse global and regional changes in CO2 fluxes using two simple models, an airborne fraction of anthropogenic emissions and a linear relationship with CO2 concentrations. We show that both models are able to fit the non-anthropogenic (hereafter natural) flux over the length of the atmospheric concentration record. Analysis of the linear model (including its uncertainties) suggests no significant decrease in the response of the natural carbon cycle. Recent data points rather to an increase. We apply the same linear diagnostic to fluxes from atmospheric inversions. Flux responses show clear regional and seasonal patterns driven by terrestrial uptake in the northern summer. Ocean fluxes show little or no linear response. Terrestrial models show clear responses, agreeing globally with the inversion responses, however the spatial structure is quite different, with dominant responses in the tropics rather than the northern extratropics.}},
author = {{Rayner, P. J. and Stavert, A. and Scholze, Marko and Ahlström, Anders and Allison, C. E. and Law, R. M.}},
issn = {{1726-4189}},
language = {{eng}},
number = {{3}},
pages = {{835--844}},
publisher = {{Copernicus GmbH}},
series = {{Biogeosciences}},
title = {{Recent changes in the global and regional carbon cycle: analysis of first-order diagnostics}},
url = {{http://dx.doi.org/10.5194/bg-12-835-2015}},
doi = {{10.5194/bg-12-835-2015}},
volume = {{12}},
year = {{2015}},
}