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Record #90484:

Air mixing in firn and the age of the air at pore close-off / J. Schwander, Bernhard Stauffer, Andreas Sigg.

Title: Air mixing in firn and the age of the air at pore close-off / J. Schwander, Bernhard Stauffer, Andreas Sigg.
Author(s): Schwander, J.
Stauffer, Bernhard.
Sigg, Andreas.
Date: 1988.
Publisher: Cambridge: International Glaciological Society
In: Annals of Glaciology. (1988.), Vol. 10 (1988)
Abstract: Air exchange in porous firn is important factor that determines age difference between air and ice and width of age distribution in ice cores. Molecular diffusion is dominant process that controls exchange. This study focuses on reports of measurements of diffusivity of CO₂ and O₂ (in NO₂) in firn samples from Siple station, Antarctica. Results suggest overall effect results in reduction of 10% of values for mean age difference published previously by Schwander and Stauffer (1984). Palaeoclimatological implications.
Notes:

Annals of Glaciology. Vol. 10 :141-145 (1988).

Keywords: 551.32 -- Glaciology.
551.324 -- Land ice.
551.324.82 -- Bubbles in glaciers and ice.
551.583.3 -- Climatic changes, Quaternary.
E5 -- Glaciology: land ice.
(*7) -- Antarctic regions.
(*775) -- Ellsworth Land.
SPRI record no.: 90484

MARCXML

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245 10 ‡aAir mixing in firn and the age of the air at pore close-off /‡cJ. Schwander, Bernhard Stauffer, Andreas Sigg.
260 ## ‡aCambridge :‡bInternational Glaciological Society,‡c1988.
300 ## ‡ap. 141-145 :‡bdiags., table.
500 ## ‡aAnnals of Glaciology. Vol. 10 :141-145 (1988).
520 3# ‡aAir exchange in porous firn is important factor that determines age difference between air and ice and width of age distribution in ice cores. Molecular diffusion is dominant process that controls exchange. This study focuses on reports of measurements of diffusivity of CO₂ and O₂ (in NO₂) in firn samples from Siple station, Antarctica. Results suggest overall effect results in reduction of 10% of values for mean age difference published previously by Schwander and Stauffer (1984). Palaeoclimatological implications.
650 07 ‡a551.32 -- Glaciology.‡2udc
650 07 ‡a551.324 -- Land ice.‡2udc
650 07 ‡a551.324.82 -- Bubbles in glaciers and ice.‡2udc
650 07 ‡a551.583.3 -- Climatic changes, Quaternary.‡2udc
650 07 ‡aE5 -- Glaciology: land ice.‡2local
651 #7 ‡a(*7) -- Antarctic regions.‡2udc
651 #7 ‡a(*775) -- Ellsworth Land.‡2udc
700 1# ‡aStauffer, Bernhard.
700 1# ‡aSigg, Andreas.
773 0# ‡7nnas ‡tAnnals of Glaciology. ‡gVol. 10 (1988) ‡wSPRI-60773
917 ## ‡aUnenhanced record from Muscat, imported 2019
948 3# ‡a20240328