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	Author	Duphil Romain, Possenti Philippe, Piard Luc,
	Title	A new leak-tight borehole casing at Dome Concordia station, Antarctica, for the SUBGLACIOR project			Type	Journal Article
	Year	2014	Publication	Annals of Glaciology	Abbreviated Journal
	Volume	55	Issue	68	Pages	351-354
	Keywords
	Abstract	In the frame of the SUBGLACIOR project, a new type of casing has been installed for testing during the 2013/14 austral summer season at Dome Concordia station, Antarctica. The SUBGLACIOR probe requires a full fluid column up to the surface, in order to circulate fluid for icechips recovery. This makes it essential that the casing is leak-tight through the porous firn column. We have evaluated existing solutions before opting to test a new method. This new system is made of polyethylene pipes which are welded together at the surface while the casing pipes are lowered into the reamed borehole. It is simple and lightweight and allows the casing to be installed quickly with optimum chance of being leak-tight. The installed casing has been tested both with compressed air and drilling fluids and has proven to work.
	Programme	1119
	Campaign
	Address
	Corporate Author				Thesis
	Publisher	International Glaciological Society	Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	02603055	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number				Serial	5932
Permanent link to this record



	Author	J. Mouginot, E. Rignot, Y. Gim, D. Kirchner, E. Le Meur
	Title	Low-frequency radar sounding of ice in East Antarctica and southern Greenland			Type	Journal
	Year	2014	Publication	Annals of Glaciology	Abbreviated Journal
	Volume	55	Issue	67	Pages	138-146
	Keywords	Antarctic glaciology ground-penetrating radar radio-echo sounding remote sensing
	Abstract	We discuss a decameter-wavelength airborne radar sounder, the Warm Ice Sounding Explorer (WISE), that provides ice thickness in areas where radar signal penetration at higher frequencies is expected to be limited. Here we report results for three campaigns conducted in Greenland (2008, 2009, 2010) and two in Antarctica (2009, 2010). Comparisons with higher-frequency radar data indicate an accuracy of ±55 m for ice-thickness measurements in Greenland and ±25 m in Antarctica. We also estimate ice thickness of the Qassimiut lobe in southwest Greenland, where few ice-thickness measurements have been made, demonstrating that WISE penetrates in strongly scattering environments.
	Programme	1053
	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	0260-3055, 1727-5644	ISBN	0260-3055, 1727-5644	Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number				Serial	6793
Permanent link to this record



	Author	BellotHerve, TrouvilliezAlexandre, Naaim-BouvetFlorence, GenthonChristophe, GalleeHubert,
	Title	Present weather-sensor tests for measuring drifting snow			Type	Journal Article
	Year	2011	Publication	ANNALS OF GLACIOLOGY	Abbreviated Journal
	Volume	52	Issue	58	Pages	176-184
	Keywords
	Abstract	In Antarctica, blowing snow accounts for a major component of the surface mass balance near the coast. Measurements of precipitation and blowing snow are scarce, and therefore collected data would allow testing of numerical models of mass flux over this region. A present weather station (PWS), Biral VPF730, was set up on the coast at Cap Prud'homme station, 5 km from Dumont d'Urville (DDU), principally to quantify precipitation. Since we expected to be able to determine blowing-snow fluxes from the PWS data, we tested this device first on our experimental site, the Lac Blanc pass. An empirical calibration was made with a snow particle counter. Although the physics of the phenomenon was not well captured, the flux outputs were better than those from FlowCapts. The first data from Antarctica were reanalyzed. The new calibration seems to be accurate for estimating the high blowing-snow flux with an interrogation of the precipitation effects.
	Programme	1013
	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	0260-3055	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number				Serial	3424
Permanent link to this record



	Author	Bellot Hervé, Trouvilliez Alexandre, Naaim-Bouvet Florence, Genthon Christophe, Gallée Hubert,
	Title	Present weather-sensor tests for measuring drifting snow			Type	Journal Article
	Year	2011	Publication	Annals of Glaciology	Abbreviated Journal	0260-3055
	Volume	52	Issue	58	Pages	176-184
	Keywords
	Abstract	In Antarctica, blowing snow accounts for a major component of the surface mass balance near the coast. Measurements of precipitation and blowing snow are scarce, and therefore collected data would allow testing of numerical models of mass flux over this region. A present weather station (PWS), Biral VPF730, was set up on the coast at Cap Prud'homme station, 5 km from Dumont d'Urville (DDU), principally to quantify precipitation. Since we expected to be able to determine blowing-snow fluxes from the PWS data, we tested this device first on our experimental site, the Lac Blanc pass. An empirical calibration was made with a snow particle counter. Although the physics of the phenomenon was not well captured, the flux outputs were better than those from FlowCapts. The first data from Antarctica were reanalyzed. The new calibration seems to be accurate for estimating the high blowingsnow flux with an interrogation of the precipitation effects.
	Programme	411
	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	0260-3055	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number				Serial	4231
Permanent link to this record



	Author	Gaël Durand, Olivier Gagliardini, Thomas Zwinger, Emmanuel Le Meur, Richard C. A. Hindmarsh
	Title	Full Stokes modeling of marine ice sheets: influence of the grid size			Type	Journal
	Year	2009	Publication	Annals of glaciology	Abbreviated Journal
	Volume	50	Issue	52	Pages	109-114
	Keywords
	Abstract	Using the finite-element code Elmer, we show that the full Stokes modeling of the ice-sheet/ice-shelf transition we propose can give consistent predictions of grounding-line migration. Like other marine ice-sheet models our approach is highly sensitive to the chosen mesh resolution. However, with a grid size down to <5 km in the vicinity of the grounding line, predictions start to be robust because: (1) whatever the grid size (<5 km) the steady-state grounding-line position is sensibly the same (6 km standard deviation), and (2) with a grid-size refinement in the vicinity of the grounding line (200 m), the steady-state solution is independent of the applied perturbation in fluidity, provided this perturbation remains monotonic.
	Programme	1053
	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	0260-3055, 1727-5644	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number				Serial	1870
Permanent link to this record



	Author	Genthon C, Krinner G, Castebrunet H,
	Title	Antarctic precipitation and climate-change predictions: horizontal resolution and margin vs plateau issues			Type	Journal Article
	Year	2009	Publication	Annals of Glaciology	Abbreviated Journal
	Volume	50	Issue	50	Pages	55 -60
	Keywords
	Abstract	All climate models participating in the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, as made available by the Program for Climate Model Diagnosis and Intercomparison (PCMDI) as the Coupled Model Intercomparison Project 3 (CMIP3) archive, predict a significant surface warming of Antarctica by the end of the 21st century under a moderate (SRESA1B) greenhouse-gas scenario. All models but one predict a concurrent precipitation increase but with a large scatter of results. The models with finer horizontal resolution tend to predict a larger precipitation increase. Because modeled Antarctic surface mass balance is known to be sensitive to horizontal resolution, extrapolating predictions from the different models with respect to model resolution may provide simple yet better multi-model estimates of Antarctic precipitation change than mere averaging or even more complex approaches. Using such extrapolation, a conservative estimate of the predicted precipitation increase at the end of the 21st century is +30 kg m2a1 on the grounded ice sheet, corresponding to a >1 mm a1 sea-level rise. About three-quarters of this rise originates from the marginal regions of the Antarctic ice sheet with surface elevation below 2250 m. This is where field programs are most urgently needed to better understand and monitor accumulation at the surface of Antarctica, and to improve and verify prediction models.
	Programme	1013
	Campaign
	Address
	Corporate Author				Thesis
	Publisher	International Glaciological Society	Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0260-3055	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number				Serial	1927
Permanent link to this record



	Author	Brun Eric, Six Delphine, Picard Ghislain, Vionnet Vincent, Arnaud Laurent, Bazile Eric, Boone Aaron, Bouchard Aurelie, Genthon Christophe, Guidard Vincent, Le Moigne Patrick, Rabier Florence, Seity Yann,
	Title	Snow/atmosphere coupled simulation at Dome C, Antarctica			Type	Journal Article
	Year	2011	Publication	Journal of Glaciology	Abbreviated Journal
	Volume	57	Issue	204	Pages	721-736
	Keywords
	Abstract	Using a snow/atmosphere coupled model, the evolution of the surface and near-surface snow temperature is modeled at Dome C, Antarctica, during the period 20-30 January 2010. Firstly, the detailed multilayer snow model Crocus is run in stand-alone mode, with meteorological input forcing data provided by local meteorological observations. The snow model is able to simulate the evolution of surface temperature with good accuracy. It reproduces the observed downward propagation of the diurnal heatwave into the upper 50 cm of the snowpack reasonably well. Secondly, a fully coupled 3-D snow/atmosphere simulation is performed with the AROME regional meteorological model, for which the standard single-layer snow parameterization is replaced by Crocus. In spite of a poor simulation of clouds, the surface and near-surface snow temperatures are correctly simulated, showing neither significant bias nor drifts during the simulation period. The model reproduces particularly well the average decrease of the diurnal amplitude of air temperature from the surface to the top of the 45 m instrumented tower. This study highlights the potential of snow/atmosphere coupled models over the Antarctic plateau and the need to improve cloud microphysics and data assimilation over polar regions.
	Programme	1013
	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	0022-1430	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number				Serial	3771
Permanent link to this record



	Author	Brucker Ludovic, Picard Ghislain, Arnaud Laurent, Barnola Jean-Marc, Schneebeli Martin, Brunjail Hélène, Lefebvre Eric, Fily Michel,
	Title	Modeling time series of microwave brightness temperature at Dome C, Antarctica, using vertically resolved snow temperature and microstructure measurements			Type	Journal Article
	Year	2011	Publication	Journal of Glaciology	Abbreviated Journal
	Volume	57	Issue	201	Pages	171 -182
	Keywords
	Abstract	Time series of observed microwave brightness temperatures at Dome C, East Antarctic plateau, were modeled over 27 months with a multilayer microwave emission model based on dense-medium radiative transfer theory. The modeled time series of brightness temperature at 18.7 and 36.5 GHz were compared with Advanced Microwave Scanning Radiometer-EOS observations. The model uses in situ high-resolution vertical profiles of temperature, snow density and grain size. The snow grain-size profile was derived from near-infrared (NIR) reflectance photography of a snow pit wall in the range 850-1100 nm. To establish the snow grain-size profile, from the NIR reflectance and the specific surface area of snow, two empirical relationships and a theoretical relationship were considered. In all cases, the modeled brightness temperatures were overestimated, and the grain-size profile had to be scaled to increase the scattering by snow grains. Using a scaling factor and a constant snow grain size below 3 m depth (i.e. below the image-derived snow pit grain-size profile), brightness temperatures were explained with a root-mean-square error close to 1 K. Most of this error is due to an overestimation of the predicted brightness temperature in summer at 36.5 GHz.
	Programme	454
	Campaign
	Address
	Corporate Author				Thesis
	Publisher	International Glaciological Society	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	2045
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	Author	Fourati H., Manamanni N., Afilal L., & Y. Handrich
	Title	Rigid Body Motions Estimation Using Inertial Sensors: Bio-Logging Application. Actes 7th IFAC Symposium on Modelling and Control in Biomedical Systems (MCBMS’09), Aalborg. Danemark, 12-14 août 2009			Type	Conference - International - Article with Reading Comitee
	Year	2009	Publication		Abbreviated Journal
	Volume		Issue		Pages	431-436
	Keywords
	Abstract	Bio-logging is a new interdisciplinary research area at the intersection of animal behavior and bioengineering. It can involve several applications such as determination of specific parameters measurements (attitude, acceleration, and position) via a new generation of adapted-animal mechatronic systems (a.d.a.m.s.). The aim of this paper concerns the animal motion estimation problem using lowcost Micro-Electro-Mechanical-System (M.E.M.S.) sensors fusion. Generally, accurate attitude measurements are obtained using low-pass sensors such as accelerometers and magnetometers, but at quasi-static motion. In this work a state estimation algorithm is proposed, it is based on a combination of an observer and an iterated Least Squares Algorithm (I.L.S.A.). This approach fuses data from 3-axis accelerometer, 3-axis magnetometer, and 3-axis gyroscope to provide the best attitude estimation whenthe rigid body is both in static and dynamic motion. A correction stage is introduced to take into account the linear acceleration effect undergone by the rigid body. Finally, some simulation and preliminary experimental results are provided to show the efficiency of the proposed algorithm
	Programme	394
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	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		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number				Serial	307
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	Author	Maj Emilie,
	Title	The Horse of Sakha: Ethnic Symbol in Post-Communist Sakha Republic (Iakutiia)			Type	Journal Article
	Year	2009	Publication	Sibirica	Abbreviated Journal
	Volume	8	Issue	1	Pages	68 -74
	Keywords
	Abstract	This report is on contemporary processes related to horse breeding in Sakha (Iakutiia), northeastern Russia. I demonstrate the importance of the horse figure in the philosophy of the Sakha, a hunting and herding people of Siberia, as well as the parallelism between the diminishing utilitarian function of the horse and reinforcing symbolism in the post-communist context.
	Programme	1024
	Campaign
	Address
	Corporate Author				Thesis
	Publisher	Berghahn Journals	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	2013
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