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An Updated and Quality Controlled Surface Mass Balance Dataset for Antarctica : Volume 6, Issue 5 (03/09/2012)

By Favier, V.

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Book Id: WPLBN0004022727
Format Type: PDF Article :
File Size: Pages 36
Reproduction Date: 2015

Title: An Updated and Quality Controlled Surface Mass Balance Dataset for Antarctica : Volume 6, Issue 5 (03/09/2012)  
Author: Favier, V.
Volume: Vol. 6, Issue 5
Language: English
Subject: Science, Cryosphere, Discussions
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2012
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Agosta, C., Parouty, S., Krinner, G., Durand, G., Favier, V., Drouet, A.,...Trouvilliez, A. (2012). An Updated and Quality Controlled Surface Mass Balance Dataset for Antarctica : Volume 6, Issue 5 (03/09/2012). Retrieved from http://www.ebooklibrary.org/


Description
Description: UJF-CNRS, Laboratoire de Glaciologie et Géophysique de l'Environnement (LGGE), UMR 5183, 54 rue Molière, BP 96, 38402 Saint Martin d' Hères, France. 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.

Summary
An updated and quality controlled surface mass balance dataset for Antarctica

Excerpt
Agosta, C., Favier, V., Genthon C., Gallée H., Krinner, G., Lenaerts, J., and Van den Broeke, M. R.: A 40-year accumulation dataset for Adelie Land, Antarctica and its application for model validation, Clim. Dynam., 38, 75–86, 2012a.; Agosta, C., Favier, V., Krinner, G., Gallée, H., and Genthon, C.: High resolution modeling of the Antarctic mass balance for the 20th, 21st and 22nd centuries, Clim, Dynam., in review, 2012b.; Genthon, C. and Krinner. G.: Antarctic surface mass balance and systematic biases in general circulation models, J. Geophys. Res.-Atmos., 106, 20653–20664, 2001.; Anschütz, H., Müller, K., Isaksson, E., McConnell, J. R., Fischer, H., Miller, H., Albert, M., and Winther, J. G.: Revisiting sites of the South Pole Queen Maud Land Traverses in East Antarctica: Accumulation data from shallow firn cores, J. Geophys. Res., 114, D24106, doi:10.1029/2009JD012204, 2009.; Arthern, R. J., Winebrenner, D. P., and Vaughan, D. G.: Antarctic snow accumulation mapped using polarization of 4.3-cm wavelength microwave emission, J. Geophys. Res.-Atmos., 111, D06107, doi:10.1029/2004JD005667, 2006.; Bamber, J. L., Gomez-Dans, J. L., and Griggs, J. A.: Antarctic 1 km Digital Elevation Model (DEM) from Combined ERS-1 Radar and ICESat Laser Satellite Altimetry, National Snow and Ice Data Center, Boulder, Colorado, 2009.; Bindschadler, R. A., Stephenson, S. N., Roberts, E. P., Mac Ayeal, D. R., and Lindstrom, D. R.: Data report for the Siple Coast project, National Aeronautics and Space Administration (NASA Technical Memorandum 100708), 102 pp., Washington, DC, 1988.; Bliss, A. K., Cuffey, K. M., and Kavanaugh, J. L.: Sublimation and surface energy budget of Taylor Glacier, Antarctica, J. Glaciol., 57, 684–696, 2011.; Brecher, H.: Glaciological Observations on the Byrd Station-South Pole Traverse, 1960–1961, J. Glaciol., 5, 339–343, 1964.; Bull, C.: Snow accumulation in Antarctica, in Research in the Antarctic, 367–421, Am. Assoc. for the Adv. of Sci., Washington, D.C., 1971.; Ding, M., Xiao, C.; Li, Y.; Ren, J.; Hou, S., Jin, B., and Sun, B.: Spatial variability of surface mass balance along a traverse route from Zhongshan station to Dome A, Antarctica, J. Glaciol., 57, 658–666, 2011.; Eisen, O., Frezzotti, M., Genthon, C., Isaksson, E., Magand, O., Van Den Broeke, M. R., Dixon, D. A., Ekaykin, A., Holmlund, P., Kameda, T., Karlof, L., Kaspari, S., Lipenkov, V. Y., Oerter, H., Takahashi, S., and Vaughan, D. G.: Ground-based measurements of spatial and temporal variability of snow accumulation in East Antarctica, Rev. Geophys., 46, RG2001, doi:10.1029/2006RG000218, 2008.; Frezzotti, M., Pourchet, M., Flora, O., Gandolfi, S., Gay, M., Urbini, S., Vincent, C., Becagli, S., Gragnani, R., Proposito, M., Severi, M., Traversi, R., Udisti, R., and Fily, M.: New estimations of precipitation and surface sublimation in East Antarctica from snow accumulation measurements, Clim. Dynam., 23, 803–813, doi:10.1007/s00382-004-0462-5, 2004.; Fujiwara, K. and Endo, Y.: Traverse Syowa-South Pole 1968–1969, JARE Scientific Reports, Special Issue, No. 2, 68–109, National I

 

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