 |
| Titel |
Stoichiometries of remineralisation and denitrification in global biogeochemical ocean models |
| VerfasserIn |
A. Paulmier, I. Kriest, A. Oschlies |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1726-4170
|
| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 6, no. 5 ; Nr. 6, no. 5 (2009-05-28), S.923-935 |
| Datensatznummer |
250003753
|
| Publikation (Nr.) |
 copernicus.org/bg-6-923-2009.pdf |
|
|
|
|
|
| Zusammenfassung |
| Since the seminal paper of Redfield (1934), constant
stoichiometric elemental ratios linking biotic carbon and nutrient
fluxes are often assumed in marine biogeochemistry, and especially in
coupled biogeochemical circulation models, to
couple the global oxygen,
carbon and nutrient cycles. However, when looking in more detail, some
deviations from the classical Redfield stoichiometry have been
reported, in particular with respect to remineralization of organic matter
changing with depth or with ambient oxygen levels.
We here compare the assumptions about the stoichiometry of organic
matter and its remineralization
that are used explicitly and implicitly in common biogeochemical
ocean models. We find that the implicit assumptions made about the
hydrogen content of organic matter can lead to
inconsistencies in
the modeled remineralization and denitrification stoichiometries.
It is suggested that
future marine biogeochemical
models explicitly
state the chemical composition
assumed for the organic matter, including its oxygen and hydrogen content. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|