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Title |
A Review of Antarctic Surface Snow Isotopic Composition: Observations, Atmospheric Circulation, and Isotopic Modeling* |
Type |
Journal Article |
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Year |
2008 |
Publication |
Journal of climate |
Abbreviated Journal |
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Volume |
21 |
Issue |
13 |
Pages |
3359-3387 |
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Keywords |
Snow; Antarctica; Atmospheric circulation; Isotopic analysis; In situ observations |
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Abstract |
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Programme |
355;454 |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Publisher |
American Meteorological Society |
Place of Publication |
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Editor |
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Language |
English |
Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition  |
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ISSN |
0894-8755 |
ISBN |
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Notes |
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Approved |
yes |
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Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
5509 |
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Author |
Xu, G.; Frey, F.A.; Weis, D.; Scoates, J.S.; Giret, A. |
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Title |
Flood basalts from Mt. Capitole in the central Kerguelen Archipelago: Insights into the growth of the archipelago and source components contributing to plume-related volcanism |
Type |
Journal Article |
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Year |
2007 |
Publication |
Geochem. Geophys. Geosyst. |
Abbreviated Journal |
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Volume |
8 |
Issue |
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Pages |
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Keywords |
Kerguelen mantle plume; Kerguelen Archipelago; Mt. Capitole; lower continental crust; Sr; Nd; Hf; Pb isotopic ratios; 1037 Geochemistry: Magma genesis and partial melting; 1038 Geochemistry: Mantle processes; 1065 Geochemistry: Major and trace element geochemistry |
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Abstract |
The Kerguelen Archipelago, constructed on the submarine Northern Kerguelen Plateau, is attributed to Cenozoic volcanism arising from the Kerguelen hot spot. Geochemical studies of 325 to 1000 m thick lava sections of the ?30 to 25 Ma flood basalt forming the bulk of the archipelago show a temporal change from older tholeiitic basalt to younger slightly alkalic basalt. This compositional transition is expressed in a 630 m lava section at Mt. Capitole where the lava sequence is lowermost tholeiitic basalt overlain by slightly alkalic basalt overlain by plagioclase-rich cumulates that are mixtures of plagioclase-phyric basalt and more evolved magmas. During growth of the archipelago, magma supply from the hot spot was variable and at times sufficiently low to enable extensive crystal fractionation; e.g., at Mt. Capitole and nearby Mt. Tourmente only 10 of 120 lava flows have >6 wt% MgO. On the basis of this study and previous isotopic data for the ?34 Ma submarine lavas erupted on the Northern Kerguelen Plateau, other flood basalt sections in the Kerguelen Archipelago, and younger lavas erupted in the archipelago and at Heard Island, there is significant Sr, Nd, Hf, and Pb isotopic heterogeneity that can be explained by two stages of mixing. The first mixing event, best shown by the submarine lavas, is between components that are related to Indian Ocean mid-ocean ridge basalt (MORB) and the Kerguelen hot spot. From ?34 Ma to <1 Ma, on average the proportion of the MORB-related component decreased. Subsequently, a second mixing process involved addition of a component with relatively high 87Sr/86Sr (>0.7060) and low 143Nd/144Nd (<0.5125) and 176Hf/177Hf (<0.2827) and nonradiogenic Pb isotope ratios (<17.9 for 206Pb/204Pb). We infer that this component was lower continental crust. |
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Programme |
444 |
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Campaign |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Publisher |
American Geophysical Union |
Place of Publication |
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Editor |
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Original Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1525-2027 |
ISBN |
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Notes |
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Approved |
yes |
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Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
5532 |
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Author |
Fahlman, A.; Handrich, Y.; Woakes, A.J.; Bost, C.-A.; Holder, R.; Duchamp, C.; Butler, P.J. |
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Title |
Effect of fasting on the VO2-fh relationship in king penguins, Aptenodytes patagonicus |
Type |
Journal Article |
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Year |
2004 |
Publication |
American journal of physiology-regulatory integrative and comparative physiology |
Abbreviated Journal |
Am. J. Physiol. Regul. Integr. Comp. Physiol. |
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Volume |
287 |
Issue |
4 |
Pages |
R870-877 |
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Keywords |
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Abstract |
King penguins (Aptenodytes patagonicus) may fast for up to 30 days during their breeding period. As such extended fasting may affect the relationship between the rate of O2 consumption (O2) and heart rate (fH), five male king penguins were exercised at various speeds on repeated occasions during a fasting period of 24-31 days. In addition, O2 and fH were measured in the same animals during rest in cold air and water (4{degrees}C). O2 and fH at rest and O2 during exercise decreased with fasting. There was a significant relation between O2 and fH (r2 = 0.56) that was improved by including speed, body mass (Mb), number of days fasting (t), and a cross term between fH and t (r2 = 0.92). It was concluded that there was a significant change in the O2-fH relationship with fasting during exercise. As t is measurable in the field and was shown to be significant and, therefore, a practical covariate, a regression equation for use when birds are ashore was obtained by removing speed and Mb. When this equation was used, predicted O2 was in good agreement with the observed data, with an overall error of 3.0%. There was no change in the O2-fH relationship in penguins at rest in water. |
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Programme |
131;137;394 |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Edition |
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ISSN |
0363-6119 |
ISBN |
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Notes |
10.1152/ajpregu.00651.2003 |
Approved |
yes |
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Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
5548 |
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Author |
Nishitani, N.; Ogawa, T.; Sato, N.; Yamagishi, H.; Pinnock, M.; Villain, J.-P.; Sofko, G.; Troshichev, O. |
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Title |
A study of the dusk convection cell's response to an IMF southward turning |
Type |
Journal Article |
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Year |
2002 |
Publication |
Journal of geophysical research-atmospheres |
Abbreviated Journal |
J. Geophys. Res. |
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Volume |
107 |
Issue |
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Pages |
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Keywords |
2463 Ionosphere: Plasma convection; 2431 Ionosphere: Ionosphere/magnetosphere interactions; 2437 Ionosphere: Ionospheric dynamics; 2784 Magnetospheric Physics: Solar wind/magnetosphere interactions |
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Abstract |
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Programme |
312;911 |
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Campaign |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Publisher |
American Geophysical Union |
Place of Publication |
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Editor |
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Language |
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Summary Language |
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Original Title |
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Series Editor |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0148-0227 |
ISBN |
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Notes |
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Approved |
yes |
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Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
5557 |
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Author |
Le Quere, C.; Rodenbeck, C.; Buitenhuis, E.T.; Conway, T.J.; Langenfelds, R.; Gomez, A.; Labuschagne, C.; Ramonet, M.; Nakazawa, T.; Metzl, N.; Gillett, N.; Heimann, M. |
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Title |
Saturation of the Southern Ocean CO2 Sink Due to Recent Climate Change |
Type |
Book Chapter |
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Year |
2007 |
Publication |
Science |
Abbreviated Journal |
Science |
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Volume |
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Issue |
5832 |
Pages |
1735-1738 |
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Keywords |
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Abstract |
Based on observed atmospheric CO2 concentration and an inverse method, we estimate that the Southern Ocean sink of CO2 has weakened between 1981 and 2004 by 0.08 PgC/y per decade relative to the trend expected from the large increase in atmospheric CO2. This weakening is attributed to the observed increase in Southern Ocean winds resulting from human activities and projected to continue in the future. Consequences include a reduction in the efficiency of the Southern Ocean sink of CO2 in the short term (~25 years) and possibly a higher level of stabilization of atmospheric CO2 on a multicentury time scale. |
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Programme |
416;439 |
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Thesis |
Bachelor's thesis |
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Edition |
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ISSN |
0036-8075 |
ISBN |
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Approved |
yes |
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Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
5586 |
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Author |
Halsey, L.G. Butler, P.J., Fahlman, A., Bost, C.-A., Woakes, A.J., Handrich, Y. |
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Title |
Modelling the marine resources required to raise a king penguin chick in differing environments: an energetics approach. |
Type |
Journal Article |
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Year |
2008 |
Publication |
PHYSIOLOGICAL AND BIOCHEMICAL ZOOLOGY |
Abbreviated Journal |
Physiol. Biochem. Zool. |
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Volume |
81 |
Issue |
6 |
Pages |
856-867 |
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Keywords |
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Abstract |
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Programme |
394 |
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ISSN |
1522-2152 |
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Approved |
yes |
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Call Number |
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Serial |
5663 |
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Author |
Charrier, Isabelle |
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Title |
Mother-Young Vocal Recognition in Pinnipeds: review and perspectives. |
Type |
Conference - International - Communication |
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Year |
2009 |
Publication |
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Abbreviated Journal |
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Volume |
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Programme |
450 |
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yes |
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Serial |
5669 |
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Author |
Favier V. and C. Genthon |
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Title |
Rapport de mission glacioclim |
Type |
Report |
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Year |
2009 |
Publication |
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Abbreviated Journal |
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411 |
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yes |
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5673 |
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Type |
Conference - International - Article with Reading Comitee |
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Year |
2009 |
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411 |
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yes |
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Serial |
5675 |
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Author |
Agosta C., C. Genthon, V. Favier, D. Six |
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Title |
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Type |
Conference - National - Article with Reading Comitee |
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Year |
2008 |
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411 |
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yes |
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Call Number |
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Serial |
5676 |
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