| Records |
Author  |
Zhang, Y. C., C. Shen, Z. X. Liu, Z. Y. Pu, I. Dandouras, A. Marchaudon, C. M. Carr, and E. Lucek |
| Title |
Magnetopause response to variations in the solar wind: Conjunction observations between Cluster, TC‐1, and SuperDARN |
Type |
Journal Article |
| Year |
2011 |
Publication |
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS |
Abbreviated Journal |
J. Geophys. Res. |
| Volume |
116 |
Issue |
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Pages |
A08209 |
| Keywords |
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| Abstract |
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| Programme |
312;911 |
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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 |
| Call Number |
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Serial |
3804 |
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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
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Type |
Journal Article |
| Year |
2009 |
Publication |
Geophys. Res. Lett. |
Abbreviated Journal |
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| 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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Original Title |
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| Series Editor |
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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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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 |
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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
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Type |
Journal Article |
| Year |
2009 |
Publication |
Geophysical Research Letters |
Abbreviated Journal |
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| Volume |
36 |
Issue |
19 |
Pages |
L19303- |
| Keywords |
core-mantle boundary, SKS waves, amplitudes, 0545 Modeling, 7203 Body waves, 7208 Mantle, |
| Abstract |
Between 105115° degrees, the SKS waveform is complicated by the formation of SPdKS, a wave that has segments of P diffraction along the core mantle boundary. While previous studies have primarily focused on the move-out of SPdKS from SKS, we analyze the concomitant reduction of the SKS amplitude. Long-period SKKS/SKS amplitude ratios present a coherent global pattern. SKKS/SKS is relatively large in North and South American recordings of deep Tonga-Fiji earthquakes but PREM-like in European recordings of earthquakes in South America and North American recordings of earthquakes in Indonesia. Modeling of SKKS/SKS indicate that Ultra-Low Velocity Zones (ULVZs), layers at the base of the mantle with a thickness of about 1020 km and a shear velocity reduction between 2030%, are required to explain high SKKS/SKS ratios and the early move-out of SPdKS.
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133 |
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Edition |
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| ISSN |
1944-8007 |
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Approved |
yes |
| Call Number |
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Serial |
108 |
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| Author |
Zhang K, Feichter J, Kazil J, Wan H, Zhuo W, Griffiths A D, Sartorius H, Zahorowski W, Ramonet M, Schmidt M, Yver C, Neubert R E M, Brunke E-G, |
| Title |
Radon activity in the lower troposphere and its impact on ionization rate: a global estimate using different radon emissions
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Type |
Journal Article |
| Year |
2011 |
Publication |
Atmos. Chem. Phys. |
Abbreviated Journal |
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| Volume |
11 |
Issue |
15 |
Pages |
7817-7838 |
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| Abstract |
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| Programme |
416 |
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| Publisher |
Copernicus Publications |
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Series Issue |
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Edition |
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| ISSN |
1680-7324 |
ISBN |
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Medium |
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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 |
3562 |
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| Author |
Zerath E., Holy X., Gaud R. & Schmitt D. |
| Title |
Decreased serum levels of 1,25-(OH)² vitamin D during 1 year of sunlight deprivation in the Antarctic. |
Type |
Journal Article |
| Year |
1999 |
Publication |
European journal of applied physiology |
Abbreviated Journal |
Eur. J. Appl. Physiol. |
| Volume |
79 |
Issue |
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Pages |
141-147 |
| Keywords |
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| Abstract |
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| Programme |
252 |
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Edition |
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| ISSN |
1439-6319 |
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Approved |
yes |
| Call Number |
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Serial |
1051 |
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| Author |
Zecchinon, L., Oriol, A., Netzel, U., Svennberg, J., Gerrdin-Otthiers, N. & Feller, G. |
| Title |
Stability domains, substrate-induced conformational changes, and hinge-bending motions in a psychrophilic phosphoglycerate kinase. |
Type |
Journal Article |
| Year |
2005 |
Publication |
Journal of biological chemistry |
Abbreviated Journal |
J. Biol. Chem. |
| Volume |
280 |
Issue |
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Pages |
41307-41314 |
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| Abstract |
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| Programme |
193 |
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Series Title |
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Series Issue |
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Edition |
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| ISSN |
0021-9258 |
ISBN |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
3878 |
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| Author |
Zecchinon L., Claverie P., Collins T., D'amico S., Delille D., Feller G., Georlette D., Gratia E., Hoyoux A., Meuwis M.A. & 1.a.l. |
| Title |
Did psychrophilic enzymes really win the challenge? |
Type |
Journal Article |
| Year |
2001 |
Publication |
Extremophiles |
Abbreviated Journal |
Extremophiles |
| Volume |
5 |
Issue |
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Pages |
313-321 |
| Keywords |
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| Abstract |
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| Programme |
193 |
| Campaign |
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Series Issue |
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Edition |
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| ISSN |
1431-0651 |
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Medium |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
103 |
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| Author |
Zdzitowiecki K., Rocka A., Pisano E. & Ozouf Costaz C. |
| Title |
A list of parasitic worms collected off adelie Land (antarctica). |
Type |
Journal Article |
| Year |
1998 |
Publication |
Acta parasitologica |
Abbreviated Journal |
Acta Parasitol. |
| Volume |
43(2) |
Issue |
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Pages |
71-74 |
| Keywords |
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| Abstract |
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| Programme |
281 |
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Series Title |
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Series Issue |
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Edition |
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| ISSN |
1230-2821 |
ISBN |
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Medium |
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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 |
714 |
| Permanent link to this record |
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| Author |
Zdzitowiecki K. |
| Title |
Helicometra pisanoae sp. n.(Diogenea, opecoelidae), a parasire of a fish, Trematomus hansoni, in the Eastern Antarctic. |
Type |
Journal Article |
| Year |
1998 |
Publication |
Acta parasitologica |
Abbreviated Journal |
Acta Parasitol. |
| Volume |
43 |
Issue |
1 |
Pages |
26-29 |
| Keywords |
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| Abstract |
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| Programme |
281 |
| Campaign |
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Series Title |
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Series Issue |
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Edition |
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| ISSN |
1230-2821 |
ISBN |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
1374 |
| Permanent link to this record |
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| Author |
Zaroli Christophe, Debayle Eric, Sambridge Malcolm, |
| Title |
Frequency-dependent effects on global S-wave traveltimes: wavefront-healing, scattering and attenuation
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Type |
Journal Article |
| Year |
2010 |
Publication |
Geophysical Journal International |
Abbreviated Journal |
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| Volume |
182 |
Issue |
2 |
Pages |
1025 -1042 |
| Keywords |
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| Abstract |
We present a globally distributed data set of 400 000 frequency-dependent SH-wave traveltimes. An automated technique is used to measure teleseismic S, ScS and SS traveltimes at several periods ranging from 10 to 51 s. The targeted seismic phases are first extracted from the observed and synthetic seismograms using an automated time window algorithm. Traveltimes are then measured at several periods, by cross-correlation between the selected observed and synthetic filtered waveforms. Frequency-dependent effects due to crustal reverberations beneath each receiver are handled by incorporating crustal phases into WKBJ synthetic waveforms.After correction for physical dispersion due to intrinsic anelastic processes, we observe a residual traveltime dispersion on the order of 12 s in the period range of analysis. This dispersion occurs differently for S, ScS and SS, which is presumably related to their differing paths through the Earth. We find that: (1) Wavefront-healing phenomenon is observed for S and to a lesser extent SS waves having passed through very low velocity anomalies. (2) A preferred sampling of high velocity scatterers located at the CMB may explain our observation that ScS waves travel faster at low-frequency than at high-frequency. (3) A frequency-dependent attenuation q() q0×, with 0.2, is compatible with the globally averaged dispersion observed for S waves.
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| Programme |
133 |
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Thesis |
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Editor |
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Original Title |
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| Series Editor |
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Series Title |
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Series Issue |
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Edition |
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| ISSN |
0956-540X |
ISBN |
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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 |
455 |
| Permanent link to this record |
