Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
Evaluation of ocean model ventilation with CFC-11: comparison of 13 global ocean models
Dutay, J.C.; Bullister, J.L.; Doney, S.C.; Orr, J.C.; Najjar, R.; Caldeira, K.; Campin, J.M.; Drange, H.; Follows, M.; Gao, Y.; Gruber, N.; Hecht, M.W.; Ishida, A.; Joos, F.; Lindsay, K.; Madec, G.; Maier-Reimer, E.; Marshall, J.C.; Matear, R.J.; Monfray, P.; Mouchet, A.; Plattner, G.K.; Sarmiento, J.; Schlitzer, R.; Slater, R.; Totterdell, I.J.; Weirig, M.F.; Yamanaka, Y.; Yool, A. (2002). Evaluation of ocean model ventilation with CFC-11: comparison of 13 global ocean models. Ocean Modelling 4(2): 89-120. dx.doi.org/10.1016/S1463-5003(01)00013-0
In: Ocean Modelling. Elsevier: Oxford. ISSN 1463-5003; e-ISSN 1463-5011, meer
|  |
| Trefwoord |
|
| Author keywords |
Models; Ocean ventilation; Transient tracers; CFC |
| Auteurs | | Top |
- Dutay, J.C.
- Bullister, J.L.
- Doney, S.C.
- Orr, J.C.
- Najjar, R.
- Caldeira, K.
- Campin, J.M.
- Drange, H.
- Follows, M.
- Gao, Y., meer
|
- Gruber, N.
- Hecht, M.W.
- Ishida, A.
- Joos, F.
- Lindsay, K.
- Madec, G.
- Maier-Reimer, E.
- Marshall, J.C.
- Matear, R.J.
- Monfray, P.
|
- Mouchet, A., meer
- Plattner, G.K.
- Sarmiento, J.
- Schlitzer, R.
- Slater, R.
- Totterdell, I.J.
- Weirig, M.F.
- Yamanaka, Y.
- Yool, A.
|
| Abstract |
We compared the 13 models participating in the Ocean Carbon Model Intercomparison Project (OCMIP) with regards to their skill in matching observed distributions of CFC-11. This analysis characterizes the abilities of these models to ventilate the ocean on timescales relevant for anthropogenic CO2 uptake. We found a large range in the modeled global inventory (+/- 30%), mainly due to differences in ventilation from the high latitudes. In the Southern Ocean, models differ particularly in the longitudinal distribution of the CFC uptake in the intermediate water, whereas the latitudinal distribution is mainly controlled by the subgrid-scale parameterization. Models with isopycnal diffusion and eddy-induced velocity parameterization produce more realistic intermediate water ventilation. Deep and bottom water ventilation also varies substantially between the models. Models coupled to a sea-ice model systematically provide more realistic AABW formation source region; however these same models also largely overestimate AABW ventilation if no specific parameterization of brine rejection during sea-ice formation is included. In the North Pacific Ocean, all models exhibit a systematic large underestimation of the CFC uptake in the thermocline of the subtropical gyre, while no systematic difference toward the observations is found in the subpolar gyre. In the North Atlantic Ocean, the CFC uptake is globally underestimated in subsurface. In the deep ocean, all but the adjoint model, failed to produce the two recently ventilated branches observed in the North Atlantic Deep Water (NADW). Furthermore, simulated transport in the Deep Western Boundary Current (DWBC) is too sluggish in all but the isopycnal model, where it is too rapid. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
