Variability of 10Be and δ18O in snow pits from Greenland and a surface traverse from Antarctica

被引：5

作者：

Berggren, A. -M. ^{[1
]}

Aldahan, A. ^{[1
,2
]}

Possnert, G. ^{[3
]}

Hansson, M. ^{[4
]}

Steen-Larsen, H. C. ^{[5
]}

Storm, A. Sturevik ^{[1
]}

Morth, C. -M. ^{[6
]}

Murad, A. ^{[2
]}

机构：

[1] Uppsala Univ, Dept Earth Sci, S-75236 Uppsala, Sweden

[2] United Arab Emirates Univ, Dept Geol, Al Ain, U Arab Emirates

[3] Uppsala Univ, Tandem Lab, S-75120 Uppsala, Sweden

[4] Stockholm Univ, Dept Phys Geog & Quaternary Geol, S-10691 Stockholm, Sweden

[5] Univ Copenhagen, Niels Bohr Inst, Ctr Ice & Climate, DK-2100 Copenhagen, Denmark

[6] Stockholm Univ, Dept Geol & Geochem, S-10691 Stockholm, Sweden

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2013年 / 294卷

关键词：

Beryllium-10; Greenland; Snow pit; Neem; Jase; TEMPORAL VARIABILITY; CIRCULATION;

D O I：

10.1016/j.nimb.2012.05.041

中图分类号：

TH7 [仪器、仪表];

学科分类号：

080401 [精密仪器及机械];

摘要：

To examine temporal variability of Be-10 in glacial ice, we sampled snow to a depth of 160 cm at the NEEM (North Greenland Eemian Ice Drilling) drilling site in Greenland. The samples span three years between the summers of 2006 and 2009. At the same time, spatial variability of Be-10 in glacial ice was explored through collection of the upper similar to 5 cm of surface snow in Antarctica during part of the Swedish-Japanese traverse from Svea to Syowa station during the austral summer in 2007-2008. The results of the Greenlandic 1 Be snow suggested variable concentrations that apparently do not clearly reflect the seasonal change as indicated by the delta O-18 data. The Be-10 concentration variability most likely reflects also effects of aerosol loading and deposition pathways, possibly in combination with post-depositional processes. The Antarctic traverse data expose a negative correlation between Be-10 and delta O-18, while there are weaker but still significant correlations to altitude and distance to the coast (approximated by the distance to the 70th latitude). These relationships indicate that geographical factors, mainly the proximity to the coast, may strongly affect 1 Be concentrations in snow in Queen Maud Land, Antarctica. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：568 / 572

页数：5

共 15 条

[1]

Seasonal variation of mass transport across the tropopause [J].

Appenzeller, C ;

Holton, JR ;

Rosenlof, KH .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1996, 101 (D10) :15071-15078

[2]

Spatial and temporal variability of snow accumulation rate on the East Antarctic ice divide between Dome Fuji and EPICA DML [J].

Fujita, S. ;

Holmlund, P. ;

Andersson, I. ;

Brown, I. ;

Enomoto, H. ;

Fujii, Y. ;

Fujita, K. ;

Fukui, K. ;

Furukawa, T. ;

Hansson, M. ;

Hara, K. ;

Hoshina, Y. ;

Igarashi, M. ;

Iizuka, Y. ;

Imura, S. ;

Ingvander, S. ;

Karlin, T. ;

Motoyama, H. ;

Nakazawa, F. ;

Oerter, H. ;

Sjoberg, L. E. ;

Sugiyama, S. ;

Surdyk, S. ;

Strom, J. ;

Uemura, R. ;

Wilhelms, F. .

CRYOSPHERE, 2011, 5 (04) :1057-1081

[3]

Haran T., 2005, FAHNESTOCK COMPILERS

[4]

10Be measured in a GRIP snow pit and modeled using the ECHAM5-HAM general circulation model [J].

Heikkilae, U. ;

Beer, J. ;

Jouzel, J. ;

Feichter, J. ;

Kubik, P. .

GEOPHYSICAL RESEARCH LETTERS, 2008, 35 (05)

[5]

Oxygen isotope variability in snow from western Dronning Maud Land, Antarctica and its relation to temperature [J].

Helsen, MM ;

Van de Wal, RSW ;

Van den Broeke, MR ;

Van As, D ;

Meijer, HAJ ;

Reijmer, CH .

TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY, 2005, 57 (05) :423-435

[6]

Liu H., 2001, RADARSAT ANTARCTIC M

[7]

A review of Antarctic surface snow isotopic composition:: Observations, atmospheric circulation, and isotopic modeling [J].

Masson-Delmotte, V. ;

Hou, S. ;

Ekaykin, A. ;

Jouzel, J. ;

Aristarain, A. ;

Bernardo, R. T. ;

Bromwich, D. ;

Cattani, O. ;

Delmotte, M. ;

Falourd, S. ;

Frezzotti, M. ;

Gallee, H. ;

Genoni, L. ;

Isaksson, E. ;

Landais, A. ;

Helsen, M. M. ;

Hoffmann, G. ;

Lopez, J. ;

Morgan, V. ;

Motoyama, H. ;

Noone, D. ;

Oerter, H. ;

Petit, J. R. ;

Royer, A. ;

Uemura, R. ;

Schmidt, G. A. ;

Schlosser, E. ;

Simoes, J. C. ;

Steig, E. J. ;

Stenni, B. ;

Stievenard, M. ;

van den Broeke, M. R. ;

de Wal, R. S. W. van ;

de Berg, W. J. van ;

Vimeux, F. ;

White, J. W. C. .

JOURNAL OF CLIMATE, 2008, 21 (13) :3359-3387

[8]

The last deglaciation: timing the bipolar seesaw [J].

Pedro, J. B. ;

van Ommen, T. D. ;

Rasmussen, S. O. ;

Morgan, V. I. ;

Chappellaz, J. ;

Moy, A. D. ;

Masson-Delmotte, V. ;

Delmotte, M. .

CLIMATE OF THE PAST, 2011, 7 (02) :671-683

[9]

Evidence for climate modulation of the 10Be solar activity proxy [J].

Pedro, Joel ;

van Ommen, Tas ;

Curran, Mark ;

Morgan, Vin ;

Smith, Andrew ;

McMorrow, Alison .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2006, 111 (D21)

[10]

Understanding the climatic signal in the water stable isotope records from the NEEM shallow firn/ice cores in northwest Greenland [J].

Steen-Larsen, H. C. ;

Masson-Delmotte, V. ;

Sjolte, J. ;

Johnsen, S. J. ;

Vinther, B. M. ;

Breon, F. -M. ;

Clausen, H. B. ;

Dahl-Jensen, D. ;

Falourd, S. ;

Fettweis, X. ;

Gallee, H. ;

Jouzel, J. ;

Kageyama, M. ;

Lerche, H. ;

Minster, B. ;

Picard, G. ;

Punge, H. J. ;

Risi, C. ;

Salas, D. ;

Schwander, J. ;

Steffen, K. ;

Sveinbjoernsdottir, A. E. ;

Svensson, A. ;

White, J. .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2011, 116

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