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Author |
Branger Karine, Drillet Yann, Houssais Marie-Nolle, Testor Pierre, Bourdall-Badie Romain, Alhammoud Bahjat, Bozec Alexandra, Mortier Laurent, Bouruet-Aubertot Pascale, Crpon Michel, |
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Title |
Impact of the spatial distribution of the atmospheric forcing on water mass formation in the Mediterranean Sea
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Type |
Journal Article |
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Year |
2010 |
Publication |
J. Geophys. Res. |
Abbreviated Journal |
J. Geophys. Res. |
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Volume |
115 |
Issue |
C12 |
Pages |
C12041 - |
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Keywords |
Mediterranean Sea, deep water formation, numerical modeling, atmospheric forcing, 4504 Oceanography: Physical: Air/sea interactions, 4215 Oceanography: General: Climate and interannual variability, 4513 Oceanography: Physical: Decadal ocean variability, 4283 Oceanography: General: Water masses, 4520 Oceanography: Physical: Eddies and mesoscale processes, |
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Abstract |
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Programme |
452 |
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Thesis |
Bachelor's thesis |
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Publisher |
AGU |
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ISSN |
0148-0227 |
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Approved |
yes |
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Call Number |
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Serial |
2693 |
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Author |
Chisham G, Freeman M P, Abel G A, Bristow W A, Marchaudon A, Ruohoniemi J M, Sofko G J, |
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Title |
Spatial distribution of average vorticity in the high-latitude ionosphere and its variation with interplanetary magnetic field direction and season
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Type |
Journal Article |
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Year |
2009 |
Publication |
J. Geophys. Res. |
Abbreviated Journal |
J. Geophys. Res. |
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Volume |
114 |
Issue |
A9 |
Pages |
A09301 - |
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Keywords |
ionosphere, vorticity, field-aligned current, 2431 Ionosphere: Ionosphere/magnetosphere interactions, 2409 Ionosphere: Current systems, 2437 Ionosphere: Ionospheric dynamics, 2494 Ionosphere: Instruments and techniques, 2721 Magnetospheric Physics: Field-aligned currents and current systems, |
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Abstract |
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Programme |
312;911 |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Publisher |
AGU |
Place of Publication |
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ISSN |
0148-0227 |
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Approved |
yes |
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Call Number |
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Serial |
2084 |
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Author |
Zhang Yang, Ritsema Jeroen, Thorne Michael S, |
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Title |
Modeling the ratios of SKKS and SKS amplitudes with ultra-low velocity zones at the core-mantle boundary
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Type |
Journal Article |
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Year |
2009 |
Publication |
Geophys. Res. Lett. |
Abbreviated Journal |
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Volume |
36 |
Issue |
19 |
Pages |
L19303- |
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Keywords |
core-mantle boundary, SKS waves, amplitudes, 7203 Seismology: Body waves, 7208 Seismology: Mantle, 0545 Computational Geophysics: Modeling, |
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Abstract |
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Programme |
133 |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Publisher |
AGU |
Place of Publication |
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ISSN |
0094-8276 |
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Approved |
yes |
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Call Number |
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Serial |
2966 |
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Author |
Herbaut C. and M.-N. Houssais |
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Title |
Response of the eastern North Atlantic subpolar gyre to the North Atlantic Oscillation |
Type |
Journal Article |
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Year |
2009 |
Publication |
GEOPHYSICAL RESEARCH LETTERS |
Abbreviated Journal |
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Volume |
36 |
Issue |
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Pages |
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Keywords |
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Abstract |
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Programme |
452 |
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Series Issue |
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Edition |
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ISSN |
0094-8276 |
ISBN |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
6016 |
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Author |
Homberg, C.; Bergerat, F.; Angelier, J.; Garcia, S. |
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Title |
Fault interaction and stresses along broad oceanic transform zone: Tjrnes Fracture Zone, north Iceland |
Type |
Journal Article |
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Year |
2010 |
Publication |
Tectonics |
Abbreviated Journal |
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Volume |
29 |
Issue |
1 |
Pages |
TC1002 |
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Keywords |
oceanic transform; fault interaction; stresses; Iceland; slip transfer; 8150 Tectonophysics: Plate boundary: general; 8164 Tectonophysics: Stresses: crust and lithosphere; 8020 Structural Geology: Mechanics, theory, and modeling |
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Abstract |
Transform motion along oceanic transforms generally occurs along narrow faults zones. Another class of oceanic transforms exists where the plate boundary is quite large (?100 km) and includes several subparallel faults. Using a 2-D numerical modeling, we simulate the slip distribution and the crustal stress field geometry within such broad oceanic transforms (BOTs). We examine the possible configurations and evolution of such BOTs, where the plate boundary includes one, two, or three faults. Our experiments show that at any time during the development of the plate boundary, the plate motion is not distributed along each of the plate boundary faults but mainly occurs along a single master fault. The finite width of a BOT results from slip transfer through time with locking of early faults, not from a permanent distribution of deformation over a wide area. Because of fault interaction, the stress field geometry within the BOTs is more complex than that along classical oceanic transforms and includes stress deflections close to but also away from the major faults. Application of this modeling to the 100 km wide Tjrnes Fracture Zone (TFZ) in North Iceland, a major BOT of the Mid-Atlantic Ridge that includes three main faults, suggests that the Dalvik Fault and the Husavik-Flatey Fault developed first, the Grismsey Fault being the latest active structure. Since initiation of the TFZ, the Husavik-Flatey Fault accommodated most of the plate motion and probably persists until now as the main plate structure. |
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Programme |
316 |
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Campaign |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
AGU |
Place of Publication |
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Series Editor |
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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 |
0278-7407 |
ISBN |
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Notes |
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Approved |
yes |
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Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
6062 |
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Author |
Legrand M, Preunkert S, Jourdain B, Galle H, Goutail F, Weller R, Savarino J, |
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Title |
Year-round record of surface ozone at coastal (Dumont d'Urville) and inland (Concordia) sites in East Antarctica
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Type |
Journal Article |
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Year |
2009 |
Publication |
J. Geophys. Res. |
Abbreviated Journal |
J. Geophys. Res. |
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Volume |
114 |
Issue |
D20 |
Pages |
D20306 - |
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Keywords |
Ozone, Antarctica, 0365 Atmospheric Composition and Structure: Troposphere: composition and chemistry, 0368 Atmospheric Composition and Structure: Troposphere: constituent transport and chemistry, 0330 Atmospheric Composition and Structure: Geochemical cycles, |
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Abstract |
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Programme |
414;903;904;1011 |
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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 |
AGU |
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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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 |
0148-0227 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
2180 |
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Author |
Baroni, Mlanie; Savarino, Jol; Cole-Dai, J.; Rai, V.K.; Thiemens, M.H. |
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Title |
Anomalous sulfur isotope compositions of volcanic sulfate over the last millennium in Antarctic ice cores |
Type |
Journal Article |
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Year |
2008 |
Publication |
J. Geophys. Res. |
Abbreviated Journal |
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Volume |
113 |
Issue |
D20 |
Pages |
D20112 |
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Keywords |
sulfur isotope anomaly; volcanic eruption; ice cores; 0370 Atmospheric Composition and Structure: Volcanic effects; 0454 Biogeosciences: Isotopic composition and chemistry; 0473 Biogeosciences: Paleoclimatology and paleoceanography; 0724 Cryosphere: Ice cores; 1041 Geochemistry: Stable isotope geochemistry |
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Abstract |
The reconstruction of past volcanism from glaciological archives is based on the measurement of sulfate concentrations in ice. This method does not allow a proper evaluation of the climatic impact of an eruption owing to the uncertainty in classifying an event between stratospheric or tropospheric. This work develops a new method, using anomalous sulfur isotope composition of volcanic sulfate in order to identify stratospheric eruptions over the last millennium. The advantages and limits of this new method are established with the examination of the 10 largest volcanic signals in ice cores from Dome C and South Pole, Antarctica. Of the 10, seven are identified as stratospheric eruptions. Among them, three have been known to be stratospheric (Tambora, Kuwae, the 1259 Unknown Event) and they exhibit anomalous sulfur isotope compositions. Three unknown events (circa 1277, 1230, 1170 A.D.) and the Serua eruption have been identified as stratospheric eruptions, which suggests for the first time that they could have had significant climatic impact. However, the Kuwae and the 1259 Unknown Event stratospheric eruptions exhibit different anomalous sulfur isotope compositions between South Pole and Dome C samples. Differences in sulfate deposition and preservation patterns between the two sites can help explain these discrepancies. This study shows that the presence of an anomalous sulfur isotope composition of volcanic sulfate in ice core indicates a stratospheric eruption, but the absence of such composition does not necessarily lead to the conclusion of a tropospheric process because of differences in the sulfate deposition on the ice sheet. |
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Programme |
1011 |
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Corporate Author |
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Thesis |
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Publisher |
AGU |
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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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 |
0148-0227 |
ISBN |
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Expedition |
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Conference |
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Notes |
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Approved |
yes |
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Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
6048 |
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Author |
Melanie Baroni, Joel Savarino, Jihong Cole-Dai, Vinai K. Rai and Mark H. Thiemens |
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Title |
Anomalous sulfur isotope compositions of volcanic sulfate over the last millennium in Antarctic ice cores |
Type |
Journal Article |
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Year |
2008 |
Publication |
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
Abbreviated Journal |
J. Geophys. Res. |
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Volume |
113 |
Issue |
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Pages |
D20112 |
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Keywords |
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Abstract |
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Programme |
1011 |
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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 |
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Serial |
5827 |
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Author |
Preunkert, S.; Jourdain, B.; Legrand, M.; Udisti, R.; Becagli, S.; Cerri, O. |
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Title |
Seasonality of sulfur species (dimethyl sulfide, sulfate, and methanesulfonate) in Antarctica: Inland versus coastal regions |
Type |
Journal Article |
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Year |
2008 |
Publication |
Journal of geophysical research-atmospheres |
Abbreviated Journal |
J. Geophys. Res. |
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Volume |
113 |
Issue |
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Pages |
D15302 |
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Keywords |
sulfur cycle; DMS; 0365 Atmospheric Composition and Structure: Troposphere: composition and chemistry; 0315 Atmospheric Composition and Structure: Biosphere/atmosphere interactions; 0305 Atmospheric Composition and Structure: Aerosols and particles |
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Abstract |
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Programme |
414;903;1181 |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
American Geophysical Union |
Place of Publication |
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ISSN |
0148-0227 |
ISBN |
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Expedition |
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Conference |
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Notes |
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Approved |
yes |
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Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
5518 |
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Author |
Bosqued J M, Ashour-Abdalla M, Umeda T, El Alaoui M, Peroomian V, Frey H U, Marchaudon A, Laakso H, |
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Title |
Cluster observations and numerical modeling of energy-dispersed ionospheric H+ ions bouncing at the plasma sheet boundary layer
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Type |
Journal Article |
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Year |
2009 |
Publication |
J. Geophys. Res. |
Abbreviated Journal |
J. Geophys. Res. |
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Volume |
114 |
Issue |
A4 |
Pages |
A04216- |
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Keywords |
dispersed structures, 2704 Magnetospheric Physics: Auroral phenomena, 2736 Magnetospheric Physics: Magnetosphere/ionosphere interactions, 2455 Ionosphere: Particle precipitation, 2463 Ionosphere: Plasma convection, 2753 Magnetospheric Physics: Numerical modeling, |
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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 |
AGU |
Place of Publication |
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Editor |
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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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Medium |
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Conference |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
2893 |
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