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Atmospheric CO2 inversions on the mesoscale using data-driven prior uncertainties : quantification of the European terrestrial CO2 fluxes

Kountouris, Panagiotis ; Gerbig, Christoph ; Rödenbeck, Christian ; Karstens, Ute LU orcid ; Koch, Thomas F. and Heimann, Martin (2018) In Atmospheric Chemistry and Physics 18(4). p.3047-3064
Abstract
Optimized biogenic carbon fluxes for Europe wereestimated from high-resolution regional-scale inversions, uti-lizing atmospheric CO2measurements at 16 stations for theyear 2007. Additional sensitivity tests with different data-driven error structures were performed. As the atmosphericnetwork is rather sparse and consequently contains large spa-tial gaps, we use a priori biospheric fluxes to further constrainthe inversions. The biospheric fluxes were simulated by theVegetation Photosynthesis and Respiration Model (VPRM)at a resolution of 0.1◦and optimized against eddy covari-ance data. Overall we estimate an a priori uncertainty of0.54 GtC yr−1related to the poor spatial representation be-tween the biospheric model... (More)
Optimized biogenic carbon fluxes for Europe wereestimated from high-resolution regional-scale inversions, uti-lizing atmospheric CO2measurements at 16 stations for theyear 2007. Additional sensitivity tests with different data-driven error structures were performed. As the atmosphericnetwork is rather sparse and consequently contains large spa-tial gaps, we use a priori biospheric fluxes to further constrainthe inversions. The biospheric fluxes were simulated by theVegetation Photosynthesis and Respiration Model (VPRM)at a resolution of 0.1◦and optimized against eddy covari-ance data. Overall we estimate an a priori uncertainty of0.54 GtC yr−1related to the poor spatial representation be-tween the biospheric model and the ecosystem sites. The sinkestimated from the atmospheric inversions for the area of Eu-rope (as represented in the model domain) ranges between0.23 and 0.38 GtC yr−1(0.39 and 0.71 GtC yr−1up-scaled togeographical Europe). This is within the range of posteriorflux uncertainty estimates of previous studies using ground-based observations. (Less)
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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Atmospheric Chemistry and Physics
volume
18
issue
4
pages
18 pages
publisher
Copernicus GmbH
external identifiers
  • scopus:85042846268
ISSN
1680-7324
DOI
10.5194/acp-18-3047-2018
language
English
LU publication?
no
id
88838426-7d1e-46c9-9b67-27f339246939
date added to LUP
2019-06-05 09:23:49
date last changed
2022-04-26 01:19:19
@article{88838426-7d1e-46c9-9b67-27f339246939,
  abstract     = {{Optimized biogenic carbon fluxes for Europe wereestimated from high-resolution regional-scale inversions, uti-lizing atmospheric CO2measurements at 16 stations for theyear  2007.  Additional  sensitivity  tests  with  different  data-driven error structures were performed. As the atmosphericnetwork is rather sparse and consequently contains large spa-tial gaps, we use a priori biospheric fluxes to further constrainthe inversions. The biospheric fluxes were simulated by theVegetation Photosynthesis and Respiration Model (VPRM)at  a  resolution  of  0.1◦and  optimized  against  eddy  covari-ance  data.  Overall  we  estimate  an  a  priori  uncertainty  of0.54 GtC yr−1related to the poor spatial representation be-tween the biospheric model and the ecosystem sites. The sinkestimated from the atmospheric inversions for the area of Eu-rope (as represented in the model domain) ranges between0.23 and 0.38 GtC yr−1(0.39 and 0.71 GtC yr−1up-scaled togeographical Europe). This is within the range of posteriorflux uncertainty estimates of previous studies using ground-based observations.}},
  author       = {{Kountouris, Panagiotis and Gerbig, Christoph and Rödenbeck, Christian and Karstens, Ute and Koch, Thomas F. and Heimann, Martin}},
  issn         = {{1680-7324}},
  language     = {{eng}},
  month        = {{03}},
  number       = {{4}},
  pages        = {{3047--3064}},
  publisher    = {{Copernicus GmbH}},
  series       = {{Atmospheric Chemistry and Physics}},
  title        = {{Atmospheric CO<sub>2</sub> inversions on the mesoscale using data-driven prior uncertainties : quantification of the European terrestrial CO<sub>2</sub> fluxes}},
  url          = {{http://dx.doi.org/10.5194/acp-18-3047-2018}},
  doi          = {{10.5194/acp-18-3047-2018}},
  volume       = {{18}},
  year         = {{2018}},
}