 |
| Titel |
Sources of variations in total column carbon dioxide |
| VerfasserIn |
G. Keppel-Aleks, P. O. Wennberg, T. Schneider |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1680-7316
|
| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 11, no. 8 ; Nr. 11, no. 8 (2011-04-18), S.3581-3593 |
| Datensatznummer |
250009636
|
| Publikation (Nr.) |
 copernicus.org/acp-11-3581-2011.pdf |
|
|
|
|
|
| Zusammenfassung |
| Observations of gradients in the total CO2 column,
⟨CO2⟩, are expected to provide improved constraints
on surface fluxes of CO2. Here we use a general circulation model
with a variety of prescribed carbon fluxes to investigate how variations in
⟨CO2⟩ arise. On diurnal scales, variations are small
and are forced by both local fluxes and advection. On seasonal scales,
gradients are set by the north-south flux distribution. On synoptic scales,
variations arise due to large-scale eddy-driven disturbances of the
meridional gradient. In this case, because variations in
⟨CO2⟩ are tied to synoptic activity, significant
correlations exist between ⟨CO2⟩ and dynamical
tracers. We illustrate how such correlations can be used to describe the
north-south gradients of ⟨CO2⟩ and the underlying
fluxes on continental scales. These simulations suggest a novel analysis
framework for using column observations in carbon cycle science. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|