| |
Records |
Links |
|
Author |
De Vargas C., Saez A.G., Medlin L.K. & Thierstein H.R. |
|
| |
Title |
Super-Species in the calcareous plankton. |
Type |
Book Chapter |
| |
Year |
2003 |
Publication |
Coccolithophores From molecular processes to global impact |
Abbreviated Journal |
|
|
| |
Volume |
|
Issue |
|
Pages |
|
|
| |
Keywords |
|
|
| |
Abstract |
In Coccolithophores From molecular processes to global impact. “ (H. Thierstein & J. Young eds. ) Springer-Verlag” |
|
| |
Programme |
271 |
|
| |
Campaign |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
Bachelor's thesis |
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition  |
|
|
| |
ISSN |
|
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
|
Serial |
2831 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Le Bohec, C.; Durant, J.M.; Gauthier-Clerc, M.; Stenseth, N.C.; Park, Y.-H.; Pradel, R.; Grémillet, D.; Gendner, J.-P.; Le Maho, Y. |
|
| |
Title |
King penguin population threatened by Southern Ocean warming |
Type |
Journal Article |
| |
Year |
2008 |
Publication |
Proceedings of the National Academy of Sciences |
Abbreviated Journal |
|
|
| |
Volume |
105 |
Issue |
7 |
Pages |
2493-2497 |
|
| |
Keywords |
|
|
| |
Abstract |
Seabirds are sensitive indicators of changes in marine ecosystems and might integrate and/or amplify the effects of climate forcing on lower levels in food chains. Current knowledge on the impact of climate changes on penguins is primarily based on Antarctic birds identified by using flipper bands. Although flipper bands have helped to answer many questions about penguin biology, they were shown in some penguin species to have a detrimental effect. Here, we present for a Subantarctic species, king penguin (), reliable results on the effect of climate on survival and breeding based on unbanded birds but instead marked by subcutaneous electronic tags. We show that warm events negatively affect both breeding success and adult survival of this seabird. However, the observed effect is complex because it affects penguins at several spatio/temporal levels. Breeding reveals an immediate response to forcing during warm phases of El Niño Southern Oscillation affecting food availability close to the colony. Conversely, adult survival decreases with a remote sea-surface temperature forcing (i.e., a 2-year lag warming taking place at the northern boundary of pack ice, their winter foraging place). We suggest that this time lag may be explained by the delay between the recruitment and abundance of their prey, adjusted to the particular 1-year breeding cycle of the king penguin. The derived population dynamic model suggests a 9% decline in adult survival for a 0.26°C warming. Our findings suggest that king penguin populations are at heavy extinction risk under the current global warming predictions. |
|
| |
Programme |
109;137 |
|
| |
Campaign |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
Bachelor's thesis |
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0027-8424 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
10.1073/pnas.0712031105 |
Approved |
yes |
|
| |
Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
5573 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Hinderer J. , Amalvict M. & Luck B. |
|
| |
Title |
Premières mesures françaises de gravimétrie absolue dans les régions polaires Antarctique (Terre Adélie) et Arctique (Spitzberg). |
Type |
Journal Article |
| |
Year |
2002 |
Publication |
Comptes Rendus de Géoscience |
Abbreviated Journal |
|
|
| |
Volume |
334 |
Issue |
|
Pages |
819-826 |
|
| |
Keywords |
|
|
| |
Abstract |
|
|
| |
Programme |
337 |
|
| |
Campaign |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
Bachelor's thesis |
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
1631-0713 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
|
Serial |
3004 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Lecointre G. & Ozouf-Costaz C. |
|
| |
Title |
Les poissons à antigels de l'océan Austral. |
Type |
Journal Article |
| |
Year |
2004 |
Publication |
Pour la science |
Abbreviated Journal |
|
|
| |
Volume |
320 |
Issue |
|
Pages |
56-61 |
|
| |
Keywords |
|
|
| |
Abstract |
|
|
| |
Programme |
281 |
|
| |
Campaign |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
Bachelor's thesis |
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0153-4092 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
|
Serial |
3014 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Rousseau D.D., Schevin P., Duzer D., Jolly D., Cambon G. & Ferrier J. |
|
| |
Title |
Long distance pollen transport to southern Greenland: Is there a regular pattern? |
Type |
Journal Article |
| |
Year |
2005 |
Publication |
Biogeosciences discussions |
Abbreviated Journal |
|
|
| |
Volume |
2 |
Issue |
|
Pages |
829-847 |
|
| |
Keywords |
|
|
| |
Abstract |
|
|
| |
Programme |
349 |
|
| |
Campaign |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
Bachelor's thesis |
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
1810-6277 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
|
Serial |
3056 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Mercier D. |
|
| |
Title |
Les géographes français et les milieux polaires et subpolaires. |
Type |
Journal Article |
| |
Year |
2003 |
Publication |
Bulletin de l'association de géographes français |
Abbreviated Journal |
|
|
| |
Volume |
4 |
Issue |
|
Pages |
407-416 |
|
| |
Keywords |
|
|
| |
Abstract |
|
|
| |
Programme |
400 |
|
| |
Campaign |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
Bachelor's thesis |
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0004-5322 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
|
Serial |
3094 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Roussel E. |
|
| |
Title |
L'évolution morphologique récente du réseau hydrographique sur les marges des glaciers Lovén, presqu'île de Brøgger (Spitsberg, 79°N). |
Type |
Journal Article |
| |
Year |
2005 |
Publication |
Norois |
Abbreviated Journal |
|
|
| |
Volume |
194 |
Issue |
|
Pages |
85-96 |
|
| |
Keywords |
|
|
| |
Abstract |
|
|
| |
Programme |
400 |
|
| |
Campaign |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
Bachelor's thesis |
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0029-182X |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
|
Serial |
3096 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Etienne S. & André M.-F. |
|
| |
Title |
Variabilité de la hiérarchie des processus de météorisation dans divers milieux nord-atlantiques (Islande, Labrador, Laponie, Spitsberg). |
Type |
Journal Article |
| |
Year |
2003 |
Publication |
Géomorphologie : relief, processus, environnement |
Abbreviated Journal |
|
|
| |
Volume |
3 |
Issue |
|
Pages |
177-190 |
|
| |
Keywords |
|
|
| |
Abstract |
|
|
| |
Programme |
400 |
|
| |
Campaign |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
Bachelor's thesis |
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
1266-5304 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
|
Serial |
3097 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Thébault, E.; Gaya-Piqué, L. |
|
| |
Title |
Applied comparisons between SCHA and R-SCHA regional modeling techniques |
Type |
Journal Article |
| |
Year |
2008 |
Publication |
Geochem. Geophys. Geosyst. |
Abbreviated Journal |
|
|
| |
Volume |
9 |
Issue |
|
Pages |
|
|
| |
Keywords |
regional modeling; SCHA; R-SCHA; 1517 Geomagnetism and Paleomagnetism: Magnetic anomalies: modeling and interpretation; 1541 Geomagnetism and Paleomagnetism: Satellite magnetics: main field, crustal field, external field |
|
| |
Abstract |
Spherical cap harmonic analysis (SCHA) has become a common tool for the regional modeling of potential fields since its introduction by Haines (1985). The fact that SCHA satisfies Laplace equation and the possibility of representing high-frequency fields with a small number of coefficients (compared to the global spherical harmonic analysis) made SCHA the preferred choice for the development, for example, of magnetic field models at national scale. However, Thébault et al. (2006a) demonstrated that the traditional SCHA presented some deficiencies, in particular related to the inversion of multilevel data sets. The authors presented the R-SCHA technique as an alternative method in which the introduction of a new set of basis functions and boundary conditions solved this issue. In this paper we present some numerical comparisons between the SCHA and R-SCHA techniques applied with different synthetic vector data sets, from near-surface main field, main difference, and crustal field data simulating a World Digital Magnetic Anomaly Map subset. Other analyses are carried out with synthetic vector data set that mimics the expected data distribution from a multisatellite mission like the forthcoming European Swarm mission. No regularization, weighting, or ad hoc procedures are applied to the synthetic vector data, and a cap of 7° aperture is considered. The numerical analyses show that SCHA is a satisfying approximation in a band-limited spectral region that depends on the cap's size. It does not work correctly either for main field or for the short-scale crustal field modeling. These aspects are supported by equations illustrating why SCHA may fail. On the contrary, R-SCHA converges more slowly than SCHA but is valid in all cases. It gives a consistent set of regional coefficients and fits the radial variation of the field in a realistic way. At last, the special case of data incompatibility shows that R-SCHA does not fit incompatible data while SCHA assimilates most of them. These results should help the scientific community to evaluate the level of approximation needed for the development of regional magnetic field models in the era of the European Space Agency Swarm mission. |
|
| |
Programme |
139 |
|
| |
Campaign |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
Bachelor's thesis |
|
| |
Publisher |
American Geophysical Union |
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
1525-2027 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
5527 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Lang M., Glasmacher U., Moine B.N., Neumann R. & Wagner G.A. |
|
| |
Title |
Etch-pit morphology of tracks caused by swift heavy ions in natural dark mica. |
Type |
Journal Article |
| |
Year |
2004 |
Publication |
Nuclear instruments and methods in physics research b |
Abbreviated Journal |
|
|
| |
Volume |
218 |
Issue |
|
Pages |
466-471 |
|
| |
Keywords |
|
|
| |
Abstract |
|
|
| |
Programme |
363 |
|
| |
Campaign |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
Bachelor's thesis |
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0168-583X |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
|
Serial |
3170 |
|
| Permanent link to this record |
