| Records |
| Author |
Memin A, Rogister Y, Hinderer J, Llubes M, Berthier E, Boy J-P, |
| Title |
Ground deformation and gravity variations modelled from present-day ice thinning in the vicinity of glaciers
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Type |
Journal Article |
| Year |
2009 |
Publication |
Journal of Geodynamics |
Abbreviated Journal |
|
| Volume |
48 |
Issue |
35 |
Pages |
195-203 |
Keywords  |
Ground tilt, Gravity variations, Elastic deformations, Present-day ice thinning, |
| Abstract |
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| Programme |
337 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
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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 |
0264-3707 |
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 |
2842 |
| Permanent link to this record |
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| Author |
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| Title |
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Type |
Journal Article |
| Year |
2013 |
Publication |
ISPRS Journal of Photogrammetry and Remote Sensing |
Abbreviated Journal |
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| Volume |
75 |
Issue |
|
Pages |
92-100 |
| Keywords |
Ground based camera, Snow cover dynamics, In situ sensing, Geometric correction, Digital camera, Svalbard, Glacier, High temporal resolution, |
| Abstract |
Arctic glaciers are reliable indicators of global climate changes. However, monitoring snow and ice dynamics in Arctic regions is challenging: some fast but key events can be missed since they are short in time but significant in the hydrological budget. |
| Programme |
304,1108,1111 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
Bachelor's thesis |
| Publisher |
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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 |
0924-2716 |
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 |
4008 |
| Permanent link to this record |
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| |
| Author |
Germe Agathe, Houssais Marie-Nolle, Herbaut Christophe, Cassou Christophe, |
| Title |
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Type |
Journal Article |
| Year |
2011 |
Publication |
J. Geophys. Res. |
Abbreviated Journal |
|
| Volume |
116 |
Issue |
C10 |
Pages |
C10034- |
| Keywords |
Greenland Sea, sea ice, 0750 Cryosphere: Sea ice (4540), 3339 Atmospheric Processes: Ocean/atmosphere interactions (0312, 4301, 4504), 4215 Oceanography: General: Climate and interannual variability (1616, 1635, 3305, 3309, 4513), |
| Abstract |
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| Programme |
452 |
| 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 |
3607 |
| Permanent link to this record |
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| |
| Author |
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| Title |
Spatio-temporal patterns in arctic fox (Vulpes alopex) diets revealed by molecular analysis of scats from Northeast Greenland |
Type |
Journal |
| Year |
2022 |
Publication |
Polar Science |
Abbreviated Journal |
|
| Volume |
32 |
Issue |
|
Pages |
100838 |
| Keywords |
Greenland Metabarcoding Predation Trophic interactions Tundra |
| Abstract |
The arctic fox (Vulpes lagopus) is endemic to the Arctic where it holds a central position in the trophic interactions. The diet of the species has previously been described as being highly flexible, but whether this flexibility is a constant trait through time, or merely reflects fast temporal changes in abundance among prey taxa, has so far been poorly resolved. Using molecular analyses of arctic fox scats from Northeast Greenland, we first examined the temporal dynamics of arctic fox diets during the short snow-free season, and then examined whether local food availability at different sites affected arctic fox dependence on lemmings. Arctic fox diets included most terrestrial vertebrate species found in the region, and exhibited substantial temporal changes, generally reflecting the dynamic changes in prey availability from late winter through autumn. This dietary flexibility was also reflected geographically, with arctic foxes consuming a variety of local prey (mainly waterfowl and lemmings) in summer. Moreover, the dietary response of arctic foxes to changes in lemming abundance depended on access to non-lemming prey. Based on these findings, we discuss whether varying degrees of lemming-dependency, combined with geographical differences in winter food availability, may explain previously published differences in arctic fox breeding patterns in high arctic Greenland. |
| Programme |
1036 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
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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 |
1873-9652 |
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 |
8406 |
| Permanent link to this record |
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| |
| Author |
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| Title |
Post-breeding migration of four Long-tailed Skuas (Stercorarius longicaudus) from North and East Greenland to West Africa |
Type |
Journal |
| Year |
2011 |
Publication |
Journal of Ornithology |
Abbreviated Journal |
|
| Volume |
152 |
Issue |
2 |
Pages |
375-381 |
| Keywords |
Greenland Long-tailed Skua Post-breeding migration Rates of travel Satellite tracking Staging area Upwelling |
| Abstract |
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| Programme |
1036 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
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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 |
1439-0361 |
ISBN |
1439-0361 |
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 |
7269 |
| Permanent link to this record |
| |
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| |
| Author |
Fund F, Perosanz F, Testut L, Loyer S, |
| Title |
An Integer Precise Point Positioning technique for sea surface observations using a GPS buoy
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Type |
Journal Article |
| Year |
2013 |
Publication |
Advances in Space Research |
Abbreviated Journal |
Adv Space Res |
| Volume |
51 |
Issue |
8 |
Pages |
1311-1322 |
| Keywords |
GPS, Ambiguity fixing, Tropospheric delays, Buoy, Radar gauge, |
| Abstract |
GPS data dedicated to sea surface observation are usually processed using differential techniques. Unfortunately, the precision of resulting kinematic positions is baseline-length dependent. So, high precision sea surface observations using differential GPS techniques are limited to coasts, lakes, and rivers. Recent improvements in GPS satellite products (orbits, clocks, and phase biases) make phase ambiguity fixing at the zero difference level achievable and opens up the observation of the sea surface without geographical constraints. This paper recalls the concept of the Integer Precise Point Positioning technique and discusses the precision of GPS buoy positioning. A sequential version of the GINS software has been implemented to achieve single epoch GPS positioning. We used 1 Hz data from a two week GPS campaign conducted in the Kerguelen Islands. A GPS buoy has been moored close to a radar gauge and 90 m away from a permanent GPS station. This infrastructure offers the opportunity to compare both kinematic Integer Precise Point Positioning and classical differential GPS positioning techniques to in situ radar gauge data. We found that Precise Point Positioning results are not significantly biased with respect to radar gauge data and that horizontal time series are consistent with differential processing at the sub-centimetre precision level. Nevertheless, standard deviations of height time series with respect to radar gauge data are typically [45] cm. The dominant driver for noise at this level is attributed to errors in tropospheric estimates which propagate into position solutions. |
| Programme |
688 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
Bachelor's thesis |
| Publisher |
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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 |
0273-1177 |
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 |
4159 |
| Permanent link to this record |
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| |
| Author |
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| Title |
Impact of extreme environmental conditions: Foraging behaviour and trophic ecology responses of a diving seabird, the common diving petrel |
Type |
Journal |
| Year |
2021 |
Publication |
Progress in Oceanography |
Abbreviated Journal |
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| Volume |
198 |
Issue |
|
Pages |
102676 |
| Keywords |
GPS tracking Habitat modelling Inter-annual variation Marine heatwave Stable isotopes |
| Abstract |
The reproductive success of birds is strongly driven by environmental conditions at different time scales. Thus, during periods of low food availability, breeding success is constrained by the ability of adults to adapt their foraging effort and feeding behaviour to maintain regular incubation shifts and chick provisioning. However, while large seabirds can buffer disruptions in prey availability, the ecophysiological constraints of smaller species may limit their behavioural flexibility. By combining information on at-sea movements, foraging habitat, trophic niche, and breeding success, this study evaluated the effects of intense variability in oceanographic conditions on common diving petrels (Pelecanoides urinatrix) at the northern extent of their range in south-eastern Australia during four consecutive breeding seasons. Unusually low breeding success (6 and 0%) was observed during two years with intense heatwave events, which were associated with higher foraging effort (foraging trips twice longer) and a substantial shift in trophic niche (lower blood ?15N values). These findings suggest that common diving petrels in Bass Strait may have reached a critical threshold above which buffering the effects of environmental variability on their reproductive output is not possible. The clear cascading impacts that marine heatwaves have on zooplankton feeders illustrate the profound bottom-up effect induced by such extreme environmental variations, and suggest strong impact on higher-trophic levels. The wide, circumpolar breeding distribution of the common diving petrel, and its high sensitivity to variations in oceanographic conditions, suggest that this species may be a suitable model to study short-term and long-term behavioural responses to the effects of climate change throughout the Southern Ocean. |
| Programme |
109 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
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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 |
0079-6611 |
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 |
8374 |
| Permanent link to this record |
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| |
| Author |
Meijer, Y.J.; Swart, D.P.J.; Allaart, M.; Andersen, S.B.; Bodeker, G.; Boyd, I.; Braathen, G.; Calisesi, Y.; Claude, H.; Dorokhov, V.; von der Gathen, P.; Gil, M.; Godin-Beekmann, S.; Goutail, F.; Hansen, G.; Karpetchko, A.; Keckhut, P.; Kelder, H.M.; Koelemeijer, R.; Kois, B.; Koopman, R.M.; Kopp, G.; Lambert, J.-C.; Leblanc, T.; McDermid, I.S.; Pal, S.; Schets, H.; Stubi, R.; Suortti, T.; Visconti, G.; Yela, M. |
| Title |
Pole-to-pole validation of Envisat GOMOS ozone profiles using data from ground-based and balloon sonde measurements |
Type |
Journal Article |
| Year |
2004 |
Publication |
Journal of geophysical research-atmospheres |
Abbreviated Journal |
J. Geophys. Res. |
| Volume |
109 |
Issue |
|
Pages |
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| Keywords |
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| Abstract |
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| Programme |
209 |
| Campaign |
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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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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 |
IPEV @ Thierry.Lemaire @ |
Serial |
5620 |
| Permanent link to this record |
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| |
| Author |
Goutte Aurlie, Angelier Frdric, Welcker Jorg, Moe Brge, Clment-Chastel Cline, Gabrielsen Geir Wing, Bech Claus, Chastel Olivier, |
| Title |
Long-term survival effect of corticosterone manipulation in Black-legged kittiwakes
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Type |
Journal Article |
| Year |
2010 |
Publication |
General and Comparative Endocrinology |
Abbreviated Journal |
Gen. Comp. Endocrinol. |
| Volume |
167 |
Issue |
2 |
Pages |
246 -251 |
| Keywords |
Glucocorticoids, Mortality, Long-lived seabirds, Rissa tridactyla, |
| Abstract |
The secretion of corticosterone in response to stress is thought to be an adaptive mechanism, which promotes immediate survival at the expense of current reproduction. However, at the individual level, the hypothesis of a corticosterone-related survival appears to be complex. In this study, we tested this hypothesis by combining for the first time an experimental manipulation of corticosterone levels and capture-mark-recapture (CMR) models. To do so, we increased corticosterone levels of chick-rearing Black-legged kittiwakes (Rissa tridactyla) via subcutaneous implants. Then, we monitored the long-term survival of kittiwakes over the 2 consecutive years. Corticosterone-implanted birds showed a significantly lower apparent annual survival than sham-implanted ones (46.9% vs 77.8%). This result is supported by the well-known deleterious effects of elevated corticosterone levels on cognitive and immune functions. Alternately and in the light of recent studies, our experimental manipulation may have down-regulated the endogenous secretion of corticosterone through a prolonged negative feedback. If so, the corticosterone-implanted kittiwakes may have failed to trigger an appropriate stress response during subsequent life-threatening perturbations, hence being unable to adjust their behavior and physiology toward immediate survival. This study highlights the complex long-term consequences of corticosterone manipulation on fitness in free-living vertebrates. |
| Programme |
330 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
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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 |
0016-6480 |
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 |
193 |
| Permanent link to this record |
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| Author |
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| Title |
Global and Interregion Characterization of Subduction Interface Earthquakes Derived From Source Time Functions Properties |
Type |
Journal |
| Year |
2018 |
Publication |
Journal of Geophysical Research: Solid Earth |
Abbreviated Journal |
|
| Volume |
123 |
Issue |
7 |
Pages |
5831-5852 |
| Keywords |
global earthquake seismology radiated energy seismic coupling source time functions stress drop subduction earthquakes |
| 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 |
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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 |
2169-9356 |
ISBN |
2169-9356 |
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 |
7383 |
| Permanent link to this record |
