| Records |
| Author |
Branger Karine, Drillet Yann, Houssais Marie-Nolle, Testor Pierre, Bourdall-Badie Romain, Alhammoud Bahjat, Bozec Alexandra, Mortier Laurent, Bouruet-Aubertot Pascale, Crpon Michel, |
| Title |
Impact of the spatial distribution of the atmospheric forcing on water mass formation in the Mediterranean Sea
|
Type |
Journal Article |
| Year |
2010 |
Publication |
J. Geophys. Res. |
Abbreviated Journal |
J. Geophys. Res. |
| Volume |
115 |
Issue |
C12 |
Pages |
C12041 - |
| 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, |
| Abstract |
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| Programme |
452 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
Bachelor's thesis |
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 |
| Call Number |
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Serial |
2693 |
| Permanent link to this record |
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| Author |
Beine Harry, Anastasio Cort, Esposito Giulio, Patten Kelley, Wilkening Elizabeth, Domine Florent, Voisin Didier, Barret Manuel, Houdier Stephan, Hall Sam, |
| Title |
Soluble, light-absorbing species in snow at Barrow, Alaska
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Type |
Journal Article |
| Year |
2011 |
Publication |
J. Geophys. Res. |
Abbreviated Journal |
|
| Volume |
116 |
Issue |
|
Pages |
D00R05- |
| Keywords |
HULIS, OASIS, chromophores, light absorption, snow pack, 0317 Atmospheric Composition and Structure: Chemical kinetic and photochemical properties, 0322 Atmospheric Composition and Structure: Constituent sources and sinks, 0365 Atmospheric Composition and Structure: Troposphere: composition and chemistry, 0736 Cryosphere: Snow (1827, 1863), |
| Abstract |
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| Programme |
1017 |
| 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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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 |
| Call Number |
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Serial |
1145 |
| Permanent link to this record |
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| Author |
Di Giacomo Domenico, Grosser Helmut, Parolai Stefano, Bormann Peter, Wang Rongjiang, |
| Title |
Rapid determination of Me for strong to great shallow earthquakes
|
Type |
Journal Article |
| Year |
2008 |
Publication |
Geophys. Res. Lett. |
Abbreviated Journal |
|
| Volume |
35 |
Issue |
10 |
Pages |
L10308- |
| Keywords |
amplitude decay dunctions, readiated seismic energy, energy magnitude, 7219 Seismology: Seismic monitoring and test-ban treaty verification, 7215 Seismology: Earthquake source observations, 7203 Seismology: Body waves, |
| Abstract |
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| Programme |
133 |
| 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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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 |
0094-8276 |
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 |
| Call Number |
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Serial |
2783 |
| Permanent link to this record |
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| Author |
Dalton Colleen A, Ekstrm Gran, Dziewoski Adam M, |
| Title |
The global attenuation structure of the upper mantle
|
Type |
Journal Article |
| Year |
2008 |
Publication |
J. Geophys. Res. |
Abbreviated Journal |
J. Geophys. Res. |
| Volume |
113 |
Issue |
B9 |
Pages |
B09303- |
| Keywords |
Attenuation, surface waves, global seismology, 7270 Seismology: Tomography, 7260 Seismology: Theory, 7208 Seismology: Mantle, 3909 Mineral Physics: Elasticity and anelasticity, 8124 Tectonophysics: Earth's interior: composition and state, |
| Abstract |
A large data set of fundamental mode Rayleigh wave amplitudes is analyzed to derive a new global three-dimensional model of shear wave attenuation in the upper mantle. The amplitude observations span a range of periods between 50 and 250 s and are derived from earthquakes with M W > 6.0 that occurred between 1993 and 2005. Four separate factors may influence an amplitude anomaly: intrinsic attenuation along the raypath, elastic focusing effects along the raypath, uncertainties in the strength of excitation, and uncertainties in the response at the station. In an earlier paper (Dalton and Ekstrm, 2006a), dependence of the retrieved attenuation structure on these terms was shown to be significant and an approach was developed to invert the amplitudes simultaneously for each term. The new three-dimensional attenuation model QRFSI12, which is the subject of this paper, is derived using this method. The model contains large lateral variations in upper-mantle attenuation, 60% to 100%, and exhibits strong agreement with surface tectonic features at depths shallower than 200 km. At greater depth, QRFSI12 is dominated by high attenuation in the southeastern Pacific and eastern Africa and low attenuation along many subduction zones in the western Pacific. Resolution tests confirm that the change in pattern of attenuation above and below 200-km depth can be determined with confidence using the fundamental mode data set. The new model is highly correlated with global models of shear wave velocity, particularly in the uppermost mantle, suggesting that the same factors may control both seismic attenuation and velocity in this depth range. However, forcing the lateral perturbations in attenuation to match those found in global velocity models decreases the data variance reduction, which suggests that subtle differences between patterns of attenuation and velocity are robust.
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| Programme |
133 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
Bachelor's thesis |
| 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 |
| Call Number |
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Serial |
2785 |
| Permanent link to this record |
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| |
| Author |
Nettles Meredith, Dziewoski Adam M, |
| Title |
Radially anisotropic shear velocity structure of the upper mantle globally and beneath North America
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Type |
Journal Article |
| Year |
2008 |
Publication |
J. Geophys. Res. |
Abbreviated Journal |
|
| Volume |
113 |
Issue |
B2 |
Pages |
B02303- |
| Keywords |
North America, seismic velocity, anisotropy, 7208 Seismology: Mantle, 7218 Seismology: Lithosphere, 7270 Seismology: Tomography, 7255 Seismology: Surface waves and free oscillations, |
| Abstract |
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| Programme |
133 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
Bachelor's thesis |
| 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 |
|
Approved |
yes |
| Call Number |
|
Serial |
2809 |
| Permanent link to this record |
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| |
| Author |
Bascou J, Delpech G, Vauchez A, Moine B N, Cottin J Y, Barruol G, |
| Title |
An integrated study of microstructural, geochemical, and seismic properties of the lithospheric mantle above the Kerguelen plume (Indian Ocean)
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Type |
Journal Article |
| Year |
2008 |
Publication |
Geochem. Geophys. Geosyst. |
Abbreviated Journal |
|
| Volume |
9 |
Issue |
4 |
Pages |
Q04036- |
| Keywords |
Kerguelen, mantle plume, seismic anisotropy, metasomatism, crystallographic fabric, lithosphere, 8121 Tectonophysics: Dynamics: convection currents, and mantle plumes, 8030 Structural Geology: Microstructures, 7208 Seismology: Mantle, |
| Abstract |
Peridotite xenoliths brought up to the surface by the volcanism of the Kerguelen Islands represent a mantle that has been affected by a high degree of partial melting followed by intense melt percolation above the Kerguelen plume. These xenoliths are therefore particularly suitable to investigate effects of melt-rock interaction on crystallographic fabrics (lattice-preferred orientation (LPO)) of peridotite minerals and on the LPO-induced seismic properties of peridotites above a mantle plume. We have studied a suite of 16 ultramafic samples representative of different degrees of partial melting and magma-rock interaction among which the protogranular harzburgites are the least metasomatised xenoliths and dunites are the ultimate stage of metasomatism. Olivine LPO is characterized by high concentration of [010] axes perpendicular to the foliation and [100] axes close to the lineation or distributed in the foliation plane in harzburgites, whereas the high concentration of [100] axes is parallel to the lineation and [010] axes is perpendicular to the assumed foliation in dunites. Olivine LPO in harzburgites is interpreted as being due to a deformation regime in axial compression or transpression. The fabric strength of olivine decreases progressively from protogranular to poikilitic harzburgites and finally to dunites, for which it remains nevertheless significant (J index $\geq$ 3.8). Seismic properties calculated from LPO of minerals indicate that metasomatism at higher melt/rock ratio lowers the P wave velocities. The most significant difference between harzburgites and dunites corresponds to the distribution of S wave anisotropy. Harzburgites display the maximum of anisotropy within the foliation plane and the minimum of anisotropy perpendicular to the foliation plane, whereas the lowest anisotropy is parallel to the lineation for dunites. These modifications of seismic properties as a result of metasomatic processes may induce seismic heterogeneities in the mantle above the Kerguelen plume. In addition, assuming a lithospheric mantle primarily harzburgitic and structured with a horizontal foliation, the seismic properties calculated for the Kerguelen xenoliths reconcile the rather high anisotropy evidenced by the horizontally propagating surface waves with the apparent isotropy revealed by the absence of splitting of vertically propagating teleseismic SKS waves recorded by the GEOSCOPE Kerguelen station.
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| Programme |
133;444 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
Bachelor's thesis |
| 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 |
1525-2027 |
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 |
| Call Number |
|
Serial |
2814 |
| Permanent link to this record |
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| |
| Author |
Tauzin Benoit, Debayle Eric, Wittlinger Grard, |
| Title |
The mantle transition zone as seen by global Pds phases: No clear evidence for a thin transition zone beneath hotspots
|
Type |
Journal Article |
| Year |
2008 |
Publication |
J. Geophys. Res. |
Abbreviated Journal |
J. Geophys. Res. |
| Volume |
113 |
Issue |
B8 |
Pages |
B08309- |
| Keywords |
P-to-S conversions, mantle transition zone, subduction hotspot plume, 7208 Seismology: Mantle, 7203 Seismology: Body waves, 7240 Seismology: Subduction zones, 8137 Tectonophysics: Hotspots, large igneous provinces, and flood basalt volcanism, 8147 Tectonophysics: Planetary interiors, |
| Abstract |
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| Programme |
133 |
| 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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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 |
| Call Number |
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Serial |
2815 |
| Permanent link to this record |
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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, |
| Title |
Cluster observations and numerical modeling of energy-dispersed ionospheric H+ ions bouncing at the plasma sheet boundary layer
|
Type |
Journal Article |
| Year |
2009 |
Publication |
J. Geophys. Res. |
Abbreviated Journal |
J. Geophys. Res. |
| Volume |
114 |
Issue |
A4 |
Pages |
A04216- |
| 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, |
| Abstract |
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| Programme |
312;911 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
Bachelor's thesis |
| 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 |
| Call Number |
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Serial |
2893 |
| Permanent link to this record |
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| Author |
Zhang Yang, Ritsema Jeroen, Thorne Michael S, |
| Title |
Modeling the ratios of SKKS and SKS amplitudes with ultra-low velocity zones at the core-mantle boundary
|
Type |
Journal Article |
| Year |
2009 |
Publication |
Geophys. Res. Lett. |
Abbreviated Journal |
|
| Volume |
36 |
Issue |
19 |
Pages |
L19303- |
| Keywords |
core-mantle boundary, SKS waves, amplitudes, 7203 Seismology: Body waves, 7208 Seismology: Mantle, 0545 Computational Geophysics: Modeling, |
| Abstract |
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| Programme |
133 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
Bachelor's thesis |
| 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 |
0094-8276 |
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 |
| Call Number |
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Serial |
2966 |
| Permanent link to this record |
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| Author |
Bousquet P, Yver C, Pison I, Li Y S, Fortems A, Hauglustaine D, Szopa S, Rayner P J, Novelli P, Langenfelds R, Steele P, Ramonet M, Schmidt M, Foster P, Morfopoulos C, Ciais P, |
| Title |
A three-dimensional synthesis inversion of the molecular hydrogen cycle: Sources and sinks budget and implications for the soil uptake
|
Type |
Journal Article |
| Year |
2011 |
Publication |
J. Geophys. Res. |
Abbreviated Journal |
|
| Volume |
116 |
Issue |
D1 |
Pages |
D01302- |
| Keywords |
atmospheric inversion, molecular hydrogen, sources and sinks, H2 budget, H2 soil uptake, 0322 Atmospheric Composition and Structure: Constituent sources and sinks, 0368 Atmospheric Composition and Structure: Troposphere: constituent transport and chemistry, 0365 Atmospheric Composition and Structure: Troposphere: composition and chemistry, 0414 Biogeosciences: Biogeochemical cycles, processes, and modeling, 0489 Biogeosciences: Trace element cycling, |
| Abstract |
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| Programme |
416 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
Bachelor's thesis |
| 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 |
| Call Number |
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Serial |
3126 |
| Permanent link to this record |
