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| Duursma, Ek; Boisson, Mprm. |
| This paper constitutes an overview and synthesis concerning atmospheric and oceanic oxygen and related carbon dioxide, particular attention being paid to potential regulation mechanisms on different time scales. The world atmospheric oxygen reserve is remarkably large, so that a lack of oxygen will not easily occur, whether in confined spaces or in major conurbations. On ''short'' scales, measured in hundreds or thousands of years, feedback processes with regard to oxygen regulation, solely based on atmospheric oxygen variations, would have to be so highly sensitive as to be barely conceivable Only oxygen in the oceans can vary between zero and about twice the saturation - a fact which suggests that here, at least potentially, there exist possibilities for... |
| Tipo: Text |
Palavras-chave: OXYGEN; CARBON DIOXIDE; AIR-SEA EXCHANGE; C-3 C-4 PHOTOSYNTHESIS; GLOBAL CHANGE. |
| Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/00099/21024/18650.pdf |
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| Lundberg, L. |
| The net air-sea exchange of CO2 in the ocean area enclosed by the Fram Strait in the north and by the Greenland-Scotland ridge in the south is estimated on the basis of oceanic pCO(2) data from three different expeditions. The data comprise observed pCO(2) as well as pCO(2) calculated from data on dissolved inorganic carbon (C-t), total alkalinity (TA) and pH. Data on atmospheric content of CO2 are available from two of the expeditions and are supplemented with monthly mean values from ocean station ''M'' (66 degrees N, 2 degrees E). Wind speed drawn from a data set with a spatial resolution of 75 km and a temporal resolution of six hours are used in the calculation. The pCO(2) data are interpolated to the same spatial resolution as that of the wind speed... |
| Tipo: Text |
Palavras-chave: CO2; AIR-SEA EXCHANGE; NORDIC SEAS; GAS EXCHANGE. |
| Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/00098/20882/18496.pdf |
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