| Records |
| Author |
Gaston Godard, Julien Reynes, Jérôme Bascou, René-Pierre Ménot, Rosaria Palmeri |
| Title |
First rocks sampled in Antarctica (1840): Insights into the landing area and the Terre Adélie craton |
Type |
Journal |
| Year |
2017 |
Publication |
Comptes Rendus Geoscience |
Abbreviated Journal |
|
| Volume |
349 |
Issue |
1 |
Pages |
12-21 |
Keywords  |
“Terre Adélie” craton Antarctica High- metamorphism Icecap shrinking Little Ice age Migmatite Prehnite-pumpellyite |
| Abstract |
In January 1840, Dumont d’Urville's expedition landed along the coast of “Terre Adélie” and took three rock specimens, the first ever sampled on the Antarctic continent. The petrological and geochemical study of these samples, stored at the “Muséum national d’histoire naturelle”, in Paris, characterizes them as migmatitic cordierite+microcline-bearing paragneiss and mesocratic quartz+biotite-bearing amphibolite. The paragneiss reached 670°C at 3.2 kbar, suggesting an abnormal high-T gradient of ca. 60°C/km during the regional metamorphism that affected the “Terre Adélie” craton 1.7Ga ago. The studied samples are identical to the rocks observed at the “Rocher du Débarquement”, confirming that this was the actual landing place. On the other hand, quartz diorite and volcanic rocks reportedly sampled in Adélie Land during the same expedition and stored at Le Mans and Toulouse Museums do not originate from Antarctica. The examination of Dumont d’Urville's map suggests an icecap shrinking by 9 km in the landing area since 1840. |
| Programme |
1003 |
| 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 |
|
Series Title |
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Abbreviated Series Title |
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| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
1631-0713 |
ISBN |
1631-0713 |
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
6750 |
| Permanent link to this record |
| |
|
| |
| Author |
Lorrain A, Graham B, Ménard F, Popp B, Bouillon S, van Breugel P, Cherel Y, |
| Title |
Nitrogen and carbon isotope values of individual amino acids: a tool to study foraging ecology of penguins in the Southern Ocean |
Type |
Journal Article |
| Year |
2009 |
Publication |
Mar Ecol Prog Ser |
Abbreviated Journal |
Mar. Ecol. Prog. Ser. |
| Volume |
391 |
Issue |
|
Pages |
293 -306 |
| Keywords |
δ15N · δ13C · Compound specific · Isotopic niche · Trophic level |
| Abstract |
We determined the δ15N and δ13C values of individual amino acids (AAs) isolated from chick blood of 4 penguin species that forage in different oceanic regions (from the subtropics of the Indian Ocean to Antarctica) to test if: (1) the δ15N values of phenylalanine (δ15N phe) revealed different foraging areas among the species; (2) the difference between glutamic acid and phenylalanine δ15N values (Δδ15Nglu-phe) accurately predicted trophic levels; and (3) the δ13C value of AAs could resolve species foraging locations, similar to bulk δ13C values. The δ13C values of all AAs decreased with latitude, were positively correlated with bulk δ13C data, and, therefore, tracked the isotopic baseline. However, we were not able to discern additional ecological information from these δ13C values. In contrast, the δ15N values of AAs distinguished the isotopic value of the nitrogen at the base of the food web from the trophic level of the consumer, providing new insight for the study of the trophic ecology of seabirds. The difference in the bulk δ15N values of northern and southern rockhopper penguins Eudyptes chrysocome ssp. was due to both a difference in their foraging location (different δ15N phe) and their trophic levels (different Δδ15Nglu-phe). The δ15N phe values of king Aptenodytes patagonicus and Adélie penguins Pygoscelis adeliae were higher than those of rockhoppers, which could reflect a foraging on mesopelagic prey for king penguins and, in the highly productive Antarctic shelf waters, for Adelie penguins. The Δδ15Nglu-phe accurately reflected the relative trophic level of penguins, but further work is required to determine the trophic enrichment factors for compound-specific isotope analysis. |
| 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 |
|
Summary Language |
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Original Title |
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| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
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| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
0171-8630 |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
1931 |
| Permanent link to this record |
| |
|
| |
| Author |
O. I. Berngardt, J. M. Ruohoniemi, J.-P. St‐Maurice, A. Marchaudon, M. J. Kosch, A. S. Yukimatu, N. Nishitani, S. G. Shepherd, M. F. Marcucci, H. Hu, T. Nagatsuma, M. Lester |
| Title |
Global Diagnostics of Ionospheric Absorption During X-Ray Solar Flares Based on 8- to 20-MHz Noise Measured by Over-the-Horizon Radars |
Type |
Journal |
| Year |
2019 |
Publication |
Space Weather |
Abbreviated Journal |
|
| Volume |
17 |
Issue |
6 |
Pages |
907-924 |
| Keywords |
\special t4ht@.D layer; \special t4ht@.E layer; decameter radars; ionosphere; radionoise absorption; X-ray solar flares |
| Abstract |
An analysis of noise attenuation during 80 solar flares between 2013 and 2017 was carried out at frequencies 8–20 MHz using 34 Super Dual Auroral Radar Network radars and the EKB ISTP SB RAS radar. The attenuation was determined on the basis of noise measurements performed by the radars during the intervals between transmitting periods. The location of the primary contributing ground sources of noise was found by consideration of the propagation paths of radar backscatter from the ground. The elevation angle for the ground echoes was determined through a new empirical model. It was used to determine the paths of the noise and the location of its source. The method was particularly well suited for daytime situations, which had to be limited for the most part to only two crossings through the D region. Knowing the radio path was used to determine an equivalent vertical propagation attenuation factor. The change in the noise during solar flares was correlated with solar radiation lines measured by GOES/XRS, GOES/EUVS, SDO/AIA, SDO/EVE, SOHO/SEM, and PROBA2/LYRA instruments. Radiation in the 1 to 8 Å and near 100 Å are shown to be primarily responsible for the increase in the radionoise absorption, and by inference, for an increase in the D and E region density. The data are also shown to be consistent with a radar frequency dependence having a power law with an exponent of −1.6. This study shows that a new data set can be made available to study D and E regions. |
| Programme |
312 |
| 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 |
1542-7390 |
ISBN |
1542-7390 |
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
7476 |
| Permanent link to this record |
| |
|
| |
| Author |
Thèves Catherine, Balaresque Patricia, Evdokimova Larissa E, Timofeev Innokentevich V, Alekseev Anatoly N, Sevin Andr, Crubézy Eric, Gibert Morgane, |
| Title |
Population genetics of 17 Y-chromosomal STR loci in Yakutia
|
Type |
Journal Article |
| Year |
2010 |
Publication |
Forensic Science International: Genetics |
Abbreviated Journal |
Forensic Sci Int Genet |
| Volume |
4 |
Issue |
5 |
Pages |
e129 -e130 |
| Keywords |
Y-Chromosomal STR, Haplotype, AmpFlSTR Yfiler, Yakut population, |
| Abstract |
Haplotype and allele frequencies of 17 Y-chromosomal short tandem repeat (Y-STR) markers in a population sample of 133 Yakut male volunteers from two regions: Central (n = 41) and Western Yakutia (n = 92) were determined using the AmpFlSTR Yfiler PCR Amplification Kit (Applied Biosystems). A total of 65 haplotypes were identified in the Yakut population, with 15 haplotypes in Central sample and 54 haplotypes in Western sample. Haplotype diversity values of 0.79 and 0.96, and average gene diversity values of 0.14 and 0.41 were calculated for Central and Western samples, respectively. The Fst distances between both our Yakut populations with other Russian, Siberian and Chinese populations were represented by MDS plot. The graphical view demonstrated close distances between most Yakut populations and differences with other Siberian populations.
|
| Programme |
1038 |
| Campaign |
|
| Address |
|
| Corporate Author |
|
Thesis |
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| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
1872-4973 |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
2689 |
| Permanent link to this record |
| |
|
| |
| Author |
Pol K, Masson-Delmotte V, Johnsen S, Bigler M, Cattani O, Durand G, Falourd S, Jouzel J, Minster B, Parrenin F, Ritz C, Steen-Larsen HC, Stenni B, |
| Title |
New MIS 19 EPICA Dome C high resolution deuterium data: Hints for a problematic preservation of climate variability at sub-millennial scale in the “oldest ice”
|
Type |
Journal Article |
| Year |
2010 |
Publication |
Earth and Planetary Science Letters |
Abbreviated Journal |
Earth Planet. Sci. Lett. |
| Volume |
298 |
Issue |
1-2 |
Pages |
95 -103 |
| Keywords |
water stable isotopes, ice cores, Antarctica, isotopic diffusion, |
| Abstract |
Marine Isotope Stage 19 (MIS 19) is the oldest interglacial period archived in the EPICA Dome C ice core (~ 780 ky BP) and the closest “orbital analogue” to the Holocene -- albeit with a different obliquity amplitude and phase with precession. New detailed deuterium measurements have been conducted with a depth resolution of 11 cm (corresponding time resolution of ~ 130 years). They confirm our earlier low resolution profile (55 cm), showing a relatively smooth shape over the MIS 20 to MIS 18 time period with a lack of sub-millennial climate variability, first thought to be due to this low resolution. The MIS 19 high resolution profile actually reveals a strong isotopic diffusion process leading to a diffusion length of at least ~ 40 cm erasing sub-millennial climate variability. We suggest that this diffusion is caused by water-veins associated with large ice crystals at temperatures above -10 °C, temperature conditions in which the MIS 19 ice has spent more than 200 ky. This result has implications for the selection of the future “oldest ice” drilling site.
|
| Programme |
902 |
| Campaign |
|
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
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| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
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| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
0012-821X |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
2009 |
| Permanent link to this record |
| |
|
| |
| Author |
Pol K, Masson-Delmotte V, Johnsen S, Bigler M, Cattani O, Durand G, Falourd S, Jouzel J, Minster B, Parrenin F, Ritz C, Steen-Larsen HC, Stenni B, |
| Title |
New MIS 19 EPICA Dome C high resolution deuterium data: Hints for a problematic preservation of climate variability at sub-millennial scale in the “oldest ice”
|
Type |
Journal Article |
| Year |
2010 |
Publication |
Earth and Planetary Science Letters |
Abbreviated Journal |
Earth Planet. Sci. Lett. |
| Volume |
298 |
Issue |
1-2 |
Pages |
95 -103 |
| Keywords |
water stable isotopes, ice cores, Antarctica, isotopic diffusion, |
| Abstract |
Marine Isotope Stage 19 (MIS 19) is the oldest interglacial period archived in the EPICA Dome C ice core (~ 780 ky BP) and the closest “orbital analogue” to the Holocene -- albeit with a different obliquity amplitude and phase with precession. New detailed deuterium measurements have been conducted with a depth resolution of 11 cm (corresponding time resolution of ~ 130 years). They confirm our earlier low resolution profile (55 cm), showing a relatively smooth shape over the MIS 20 to MIS 18 time period with a lack of sub-millennial climate variability, first thought to be due to this low resolution. The MIS 19 high resolution profile actually reveals a strong isotopic diffusion process leading to a diffusion length of at least ~ 40 cm erasing sub-millennial climate variability. We suggest that this diffusion is caused by water-veins associated with large ice crystals at temperatures above -10 °C, temperature conditions in which the MIS 19 ice has spent more than 200 ky. This result has implications for the selection of the future “oldest ice” drilling site.
|
| Programme |
458 |
| Campaign |
|
| 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 |
|
Summary Language |
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Original Title |
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| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
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| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
0012-821X |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
2717 |
| Permanent link to this record |
| |
|
| |
| Author |
Descamps S., Gauthier-Clerc M., Le Bohec C., Gendner J.P. & Le Maho Y. |
| Title |
Impact of predation on King penguin Aptenodytes patagonicus in Crozet archipelago. |
Type |
Journal Article |
| Year |
2005 |
Publication |
Polar biology |
Abbreviated Journal |
Polar Biol. |
| Volume |
28 |
Issue |
4 |
Pages |
303-310 |
| Keywords |
Vertebrata ; Climatic zone ; Aptenodytes patagonicus ; Aves ; Polar region ; Predation |
| Abstract |
Predation can have major effects on population dynamics, but predator-prey interactions in marine ecosystems have rarely been studied. While the king penguin is one of the most studied seabirds, little is known about the impact of predation on its population dynamics. Here, we determine the impact of the main predators (giant petrels and skuas) on king penguin breeding success taking into account the nocturnal predation of petrels. We found that predation is the most important source of breeding failure for king penguins. The smallest chicks within crèches are the most hunted. The periphery of the colony suffers the highest risk of predation during summer. Our study shows the unequal quality of some areas inside the colony in terms of predation risk and breeding success, and points out the importance of timing in successful breeding. |
| Programme |
137 |
| Campaign |
|
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
0722-4060 |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
2902 |
| Permanent link to this record |
| |
|
| |
| Author |
De Lauretis M., Patrizia Francia, Andrea Piancatelli, Massimo Vellante, Umberto Villante |
| Title |
Low and mid-frequency pulsations in the polar cap: polarization pattern and MLT dependence of the spectral power during the descending phase of the solar cycle |
Type |
Journal Article |
| Year |
2009 |
Publication |
Annals of geophysics |
Abbreviated Journal |
|
| Volume |
52 |
Issue |
1 |
Pages |
27-34 |
| Keywords |
ULF waves; Antarctica; Geomagnet; ic pulsations; Polarization pattern; upstream waves |
| Abstract |
We present a statistical analysis of ULF (1-100 mHz) geomagnetic measurements conducted during years 2003-2006 at the Italian/French base of Concordia at Dome C, close to the geomagnetic pole, and at the Italian base «Mario Zucchelli» at Terra Nova Bay, also located in the polar cap, but at lower latitude. Our analysis shows that high latitude ULF pulsation power is largely controlled by the solar wind speed. At Terra Nova Bay the power shows a maximum at local noon, clearly related to cusp and closed field lines phenomena. At few mHz, the polarization pattern indicates field line resonances driven, just equatorward with respect to the station, by waves propagating tailward; the polarization of higher frequency pulsations, mostly originated from interplanetary upstream waves, suggests waves propagating sunward from the night sector. At Dome C the wave power shows a small enhancement in the local morning, more pronounced for mid-frequency pulsations; the polarization pattern, at all frequencies, appears to indicate waves propagating sunward from the night sector, suggesting a propagation channel to the ground via the magnetotail lobes. |
| Programme |
1130 |
| Campaign |
|
| Address |
|
| Corporate Author |
|
Thesis |
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| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
1593-5213 |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
5371 |
| Permanent link to this record |
| |
|
| |
| Author |
Geoffroy, L.; Aubourg, C.; Callot, J.-P.; Barrat, J.-A. |
| Title |
Mechanisms of crustal growth in large igneous provinces: The north Atlantic province as a case study |
Type |
Journal Article |
| Year |
2007 |
Publication |
Geological Society of America Special Papers |
Abbreviated Journal |
|
| Volume |
430 |
Issue |
0 |
Pages |
747-774 |
| Keywords |
traps; volcanic margin; dike swarm; small-scale convection; AMS |
| Abstract |
The mechanisms of magma crust accretion at large igneous provinces (LIPs) are questioned using arguments based on the north Atlantic case. Published and new data on the calculated flow vectors within dike swarms feeding the early traps and subsequent seaward-dipping reflector lavas suggest that most of the mafic magmas forming the north Atlantic LIP transited through a small number of igneous centers. The magma was injected centrifugally in dike swarms at some distance away from individual igneous centers along the trend of the maximum horizontal stress acting in the crust, feeding lava piles via dikes intersecting the ground surface. This mechanism is similar to that observed in present-day Iceland and, more generally, in mafic volcano-tectonic systems. The absence of generalized vertical magma transit in a LIP has major geodynamic consequences. We cannot link the surface extent of LIP magmas to the dimensions of the mantle melting zone as proposed in former plume head models. The distribution of LIP magmas at the surface is primarily controlled by the regional stress field acting within the upper crust, but is also affected by magma viscosity. The igneous centers feeding LIPs most likely represent the crustal expression of small-scale convective cells of the buoyant mantle naturally located beneath the mechanical lithosphere. |
| Programme |
290 |
| Campaign |
|
| Address |
|
| Corporate Author |
|
Thesis |
Bachelor's thesis |
| Publisher |
Geological Society of America |
Place of Publication |
|
Editor |
|
| Language |
English |
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
0072-1077 |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
yes |
| Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
5504 |
| Permanent link to this record |
| |
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| |
| Author |
Koukouli M E, Lerot C, Granville J, Goutail F, Lambert J-C, Pommereau J-P, Balis D, Zyrichidou I, Van Roozendael M, Coldewey-Egbers M, Loyola D, Labow G, Frith S, Spurr R, Zehner C, |
| Title |
Evaluating a new homogeneous total ozone climate data record from GOME/ERS-2, SCIAMACHY/Envisat, and GOME-2/MetOp-A |
Type |
Journal Article |
| Year |
2015 |
Publication |
Journal of Geophysical Research: Atmospheres |
Abbreviated Journal |
|
| Volume |
120 |
Issue |
23 |
Pages |
12,296-12,312 |
| Keywords |
total ozone, SCIAMACHY, Brewer, Dobson, GOME-2, validation, 0340 Middle atmosphere: composition and chemistry, 0394 Instruments and techniques, 0480 Remote sensing, |
| Abstract |
The European Space Agency's Ozone Climate Change Initiative (O3-CCI) project aims at producing and validating a number of high-quality ozone data products generated from different satellite sensors. For total ozone, the O3-CCI approach consists of minimizing sources of bias and systematic uncertainties by applying a common retrieval algorithm to all level 1 data sets, in order to enhance the consistency between the level 2 data sets from individual sensors. Here we present the evaluation of the total ozone products from the European sensors Global Ozone Monitoring Experiment (GOME)/ERS-2, SCIAMACHY/Envisat, and GOME-2/MetOp-A produced with the GOME-type Direct FITting (GODFIT) algorithm v3. Measurements from the three sensors span more than 16 years, from 1996 to 2012. In this work, we present the latest O3-CCI total ozone validation results using as reference ground-based measurements from Brewer and Dobson spectrophotometers archived at the World Ozone and UV Data Centre of the World Meteorological Organization as well as from UV-visible differential optical absorption spectroscopy (DOAS)/Système D′Analyse par Observations Zénithales (SAOZ) instruments from the Network for the Detection of Atmospheric Composition Change. In particular, we investigate possible dependencies in these new GODFIT v3 total ozone data sets with respect to latitude, season, solar zenith angle, and different cloud parameters, using the most adequate type of ground-based instrument. We show that these three O3-CCI total ozone data products behave very similarly and are less sensitive to instrumental degradation, mainly as a result of the new reflectance soft-calibration scheme. The mean bias to the ground-based observations is found to be within the 1 ± 1% level for all three sensors while the near-zero decadal stability of the total ozone columns (TOCs) provided by the three European instruments falls well within the 1–3% requirement of the European Space Agency's Ozone Climate Change Initiative project. |
| Programme |
209 |
| 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 |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
2169-8996 |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
6317 |
| Permanent link to this record |
