| Records |
| Author |
Cavitte M G P, Blankenship D D, Young D A, Siegert M J, Le Meur E, |
| Title |
Radar stratigraphy connecting Lake Vostok and Dome C, East Antarctica, constrains the EPICA/DMC ice core time scale
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Type |
Journal Article |
| Year |
2013 |
Publication |
The Cryosphere Discuss. |
Abbreviated Journal |
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| Volume |
7 |
Issue |
1 |
Pages |
321-342 |
| Keywords |
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| Abstract |
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| Programme |
1053 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
Copernicus Publications |
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 |
1994-0440 |
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 |
4788 |
| Permanent link to this record |
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| Author |
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| Title |
An updated and quality controlled surface mass balance dataset for Antarctica
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Type |
Journal Article |
| Year |
2012 |
Publication |
The Cryosphere |
Abbreviated Journal |
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| Volume |
6 |
Issue |
5 |
Pages |
3667-3702 |
| Keywords |
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| Abstract |
We present an updated and quality controlled surface mass balance (SMB) database for the Antarctic ice sheet. We retrieved a total of 5284 SMB data documented with important meta-data, to which a filter was applied to discard data with limited spatial and temporal representativeness, too small measurement accuracy, or lack of quality control. A total of 3438 reliable data was obtained, which is about four times more than by applying the same data filtering process to previously available databases. New important data with high spatial resolution are now available over long traverses, and at low elevation in some areas. However, the quality control led to a considerable reduction in the spatial density of data in several regions, particularly over West Antarctica. Over interior plateaus, where the SMB is low, the spatial density of measurements remained high. This quality controlled dataset was compared to results from ERA-Interim reanalysis to assess model representativeness over Antarctica, and also to identify large areas where data gaps impede model validation. Except for very few areas (e.g. Adelie Land), the elevation range between 200 m and 1000 m a.s.l. is not correctly sampled in the field, and measurements do not allow a thorough validation of models in regions with complex topography, where the highest scattering of SMB values is reported. Clearly, increasing the spatial density of field measurements at low elevations, in the Antarctic Peninsula and in West Antarctica remains a scientific priority. |
| Programme |
411 |
| 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 |
1994-0440 |
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 |
4582 |
| Permanent link to this record |
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| Author |
Verfaillie D, Fily M, Le Meur E, Magand O, Jourdain B, Arnaud L, Favier V, |
| Title |
Snow accumulation variability in Adelie Land (East Antarctica) derived from radar and firn core data. A 600 km transect from Dome C
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Type |
Journal Article |
| Year |
2012 |
Publication |
The Cryosphere Discuss. |
Abbreviated Journal |
The Cryosphere Discuss. |
| Volume |
6 |
Issue |
4 |
Pages |
2855-2889 |
| Keywords |
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| Abstract |
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| Programme |
411 |
| 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 |
1994-0440 |
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 |
4589 |
| Permanent link to this record |
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| Author |
Gorodetskaya I V, Kneifel S, Maahn M, Thiery W, Schween J H, Mangold A, Crewell S, Van Lipzig N P M, |
| Title |
Cloud and precipitation properties from ground-based remote-sensing instruments in East Antarctica
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Type |
Journal Article |
| Year |
2015 |
Publication |
The Cryosphere |
Abbreviated Journal |
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| Volume |
9 |
Issue |
1 |
Pages |
285-304 |
| Keywords |
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| Abstract |
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| Programme |
411 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
Copernicus GmbH |
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 |
1994-0416 |
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 |
6193 |
| Permanent link to this record |
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| Author |
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| Title |
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Type |
Journal Article |
| Year |
2015 |
Publication |
The Cryosphere |
Abbreviated Journal |
TC |
| Volume |
9 |
Issue |
4 |
Pages |
1373-1383 |
| Keywords |
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| Abstract |
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| Programme |
1013 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
Copernicus GmbH |
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 |
1994-0416 |
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 |
6143 |
| Permanent link to this record |
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| Author |
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| Title |
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Type |
Journal Article |
| Year |
2015 |
Publication |
The Cryosphere |
Abbreviated Journal |
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| Volume |
9 |
Issue |
4 |
Pages |
1373-1383 |
| Keywords |
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| Abstract |
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| Programme |
411 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
Copernicus GmbH |
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 |
1994-0416 |
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 |
6195 |
| Permanent link to this record |
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| Author |
Amory, C., A. Trouvilliez, H. Gallée, F. Naaim-Bouvet, C. Genthon, V. favier, C. Agosta, L. Piard, and H. bellot |
| Title |
Comparison of aeolian snow transport events and snow mass fluxes between observations and simulations made by the regional climate model MAR in Adélie Land, East Antarctica |
Type |
Journal Article |
| Year |
2015 |
Publication |
The Cryosphere |
Abbreviated Journal |
TC |
| Volume |
9 |
Issue |
|
Pages |
1373-1383 |
| Keywords |
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| Abstract |
Using the original setup described in Gallée et al. (2013), the MAR regional climate model including a coupled snowpack/aeolian snow transport parameterization, was run at a fine spatial (5 km horizontal and 2 m vertical) resolution over 1 summer month in coastal Adélie Land. Different types of feedback were taken into account in MAR including drag partitioning caused by surface roughness elements. Model outputs are compared with observations made at two coastal locations, D17 and D47, situated respectively 10 and 100 km inland. Wind speed was correctly simulated with positive values of the Nash test (0.60 for D17 and 0.37 for D47) but wind velocities above 10 m s−1 were underestimated at both D17 and D47; at D47, the model consistently underestimated wind velocity by 2 m s−1. Aeolian snow transport events were correctly reproduced with the right timing and a good temporal resolution at both locations except when the maximum particle height was less than 1 m. The threshold friction velocity, evaluated only at D17 for a 7-day period without snowfall, was overestimated. The simulated aeolian snow mass fluxes between 0 and 2 m at D47 displayed the same variations but were underestimated compared to the second-generation FlowCaptTM values, as was the simulated relative humidity at 2 m above the surface. As a result, MAR underestimated the total aeolian horizontal snow transport for the first 2 m above the ground by a factor of 10 compared to estimations by the second-generation FlowCaptTM. The simulation was significantly improved at D47 if a 1-order decrease in the magnitude of z0 was accounted for, but agreement with observations was reduced at D17. Our results suggest that z0 may vary regionally depending on snowpack properties, which are involved in different types of feedback between aeolian transport of snow and z0. |
| Programme |
1013 |
| 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 |
1994-0416 |
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 |
6312 |
| Permanent link to this record |
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| Author |
Domine F, Barrere M, Sarrazin D, Morin S, Arnaud L, |
| Title |
Automatic monitoring of the effective thermal conductivity of snow in a low-Arctic shrub tundra
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Type |
Journal Article |
| Year |
2015 |
Publication |
The Cryosphere |
Abbreviated Journal |
TC |
| Volume |
9 |
Issue |
3 |
Pages |
1265-1276 |
| Keywords |
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| Abstract |
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| Programme |
1042 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
Copernicus GmbH |
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 |
1994-0416 |
ISBN |
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Medium |
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| Area |
|
Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
6116 |
| Permanent link to this record |
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| Author |
Carmagnola C M, Morin S, Lafaysse M, Domine F, Lesaffre B, Lejeune Y, Picard G, Arnaud L, |
| Title |
Implementation and evaluation of prognostic representations of the optical diameter of snow in the SURFEX/ISBA-Crocus detailed snowpack model
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Type |
Journal Article |
| Year |
2014 |
Publication |
The Cryosphere |
Abbreviated Journal |
TC |
| Volume |
8 |
Issue |
2 |
Pages |
417-437 |
| Keywords |
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| Abstract |
In the SURFEX/ISBA-Crocus multi-layer snowpack model, the snow microstructure has up to now been characterised by the grain size and by semi-empirical shape variables which cannot be measured easily in the field or linked to other relevant snow properties. In this work we introduce a new formulation of snow metamorphism directly based on equations describing the rate of change of the optical diameter (dopt). This variable is considered here to be equal to the equivalent sphere optical diameter, which is inversely proportional to the specific surface area (SSA). dopt thus represents quantitatively some of the geometric characteristics of a porous medium. Different prognostic rate equations of dopt, including a re-formulation of the original Crocus scheme and the parameterisations from Taillandier et al. (2007) and Flanner and Zender (2006), were evaluated by comparing their predictions to field measurements carried out at Summit Camp (Greenland) in May and June 2011 and at Col de Porte (French Alps) during the 2009/10 and 2011/12 winter seasons. We focused especially on results in terms of SSA. In addition, we tested the impact of the different formulations on the simulated density profile, the total snow height, the snow water equivalent (SWE) and the surface albedo. Results indicate that all formulations perform well, with median values of the RMSD between measured and simulated SSA lower than 10 m2 kg-1. Incorporating the optical diameter as a fully fledged prognostic variable is an important step forward in the quantitative description of the snow microstructure within snowpack models, because it opens the way to data assimilation of various electromagnetic observations. |
| Programme |
1042 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
Copernicus Publications |
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 |
1994-0424 |
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 |
|
Approved |
yes |
| Call Number |
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Serial |
5199 |
| Permanent link to this record |
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| Author |
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| Title |
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Type |
Journal Article |
| Year |
2014 |
Publication |
The Cryosphere |
Abbreviated Journal |
1994-0416 |
| Volume |
8 |
Issue |
6 |
Pages |
2275-2291 |
| Keywords |
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| Abstract |
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| Programme |
1053 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
Copernicus GmbH |
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 |
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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 |
1994-0416 |
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 |
|
Approved |
yes |
| Call Number |
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Serial |
5868 |
| Permanent link to this record |
