Spatial and temporal variability of snow accumulation rate on the East Antarctic ice divide between Dome Fuji and EPICA DMLRes Org Informat & Syst, Natl Inst Polar Res, Tokyo, Japan.;Kitami Inst Technol, Kitami, Hokkaido 090, Japan..
Res Org Informat & Syst, Natl Inst Polar Res, Tokyo, Japan..
Nagoya Univ, Grad Sch Environm Studies, Nagoya, Aichi 4648601, Japan..
Res Org Informat & Syst, Natl Inst Polar Res, Tokyo, Japan..
Res Org Informat & Syst, Natl Inst Polar Res, Tokyo, Japan..
Stockholm Univ, Dept Phys Geog & Quaternary Geol, S-10691 Stockholm, Sweden..
Fukuoka Univ, Fac Sci, Dept Earth Syst Sci, Fukuoka 81401, Japan..
Nagoya Univ, Grad Sch Environm Studies, Nagoya, Aichi 4648601, Japan..
Res Org Informat & Syst, Natl Inst Polar Res, Tokyo, Japan..
Hokkaido Univ, Inst Low Temp Sci, Sapporo, Hokkaido 060, Japan..
Res Org Informat & Syst, Natl Inst Polar Res, Tokyo, Japan..
Stockholm Univ, Dept Phys Geog & Quaternary Geol, S-10691 Stockholm, Sweden..
Stockholm Univ, Dept Phys Geog & Quaternary Geol, S-10691 Stockholm, Sweden..
Res Org Informat & Syst, Natl Inst Polar Res, Tokyo, Japan..
Res Org Informat & Syst, Natl Inst Polar Res, Tokyo, Japan..
Alfred Wegener Inst Polar & Marine Res, D-27515 Bremerhaven, Germany..
Royal Inst Technol, Div Geodesy & Geoinformat, Stockholm, Sweden..
Hokkaido Univ, Inst Low Temp Sci, Sapporo, Hokkaido 060, Japan..
Res Org Informat & Syst, Natl Inst Polar Res, Tokyo, Japan..
Stockholm Univ, Dept Appl Environm Sci, S-10691 Stockholm, Sweden..
Univ Ryukyus, Fac Sci, Dept Chem Biol & Marine Sci, Okinawa, Japan..
Alfred Wegener Inst Polar & Marine Res, D-27515 Bremerhaven, Germany..
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2011 (English)In: The Cryosphere, ISSN 1994-0416, E-ISSN 1994-0424, Vol. 5, no 4, p. 1057-1081Article in journal (Refereed) Published
Abstract [en]
To better understand the spatio-temporal variability of the glaciological environment in Dronning Maud Land (DML), East Antarctica, a 2800-km-long Japanese-Swedish traverse was carried out. The route includes ice divides between two ice-coring sites at Dome Fuji and EPICA DML. We determined the surface mass balance (SMB) averaged over various time scales in the late Holocene based on studies of snow pits and firn cores, in addition to radar data. We find that the large-scale distribution of the SMB depends on the surface elevation and continentality, and that the SMB differs between the windward and leeward sides of ice divides for strong-wind events. We suggest that the SMB is highly influenced by interactions between the large-scale surface topography of ice divides and the wind field of strong-wind events that are often associated with high-precipitation events. Local variations in the SMB are governed by the local surface topography, which is influenced by the bedrock topography. In the eastern part of DML, the accumulation rate in the second half of the 20th century is found to be higher by similar to 15% than averages over longer periods of 722 a or 7.9 ka before AD 2008. A similar increasing trend has been reported for many inland plateau sites in Antarctica with the exception of several sites on the leeward side of the ice divides.
Place, publisher, year, edition, pages
2011. Vol. 5, no 4, p. 1057-1081
Research subject
SWEDARCTIC 2006, Zeppelin; SWEDARCTIC 2007, Zeppelin 2007
Identifiers
URN: urn:nbn:se:polar:diva-2322DOI: 10.5194/tc-5-1057-2011ISI: 000298494200017OAI: oai:DiVA.org:polar-2322DiVA, id: diva2:858303
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