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Record #183764:

Geophysical exploration of Antarctic blue ice areas (BIAs) for paleoclimate applications / Anna Sinisalo.

Title: Geophysical exploration of Antarctic blue ice areas (BIAs) for paleoclimate applications / Anna Sinisalo.
Author(s): Sinisalo, Anna.
Date: 2007.
In: Arktisen keskuksen tiedotteita = Arctic Centre Reports. (2007.), Vol. 51 (2007)
Abstract: Describes blue ice area at Scharffenbergbotnen in Dronning Maud Land, Antarctica, where surface mass balance, ice flow velocities, and age gradient of surface were determined by stake, ground penetrating radar, and differential GPS measurements during 1999-2001 and 2003-04 austral seasons. Surface age gradient and age of blue ice samples were estimated by adjusting flow model to match radiocarbon ages of ice samples from same area. Age gradients estimated by flow model, by following isochrones with ground penetrating radar, and by high resolution isotopic analysis were consistent. Dating model indicated that time period sampled was 500-year span of mid-Holocene, and isotopic analysis implied that mid-Holocene in Scharffenbergbotnen was about 1.0 +/- 0.3°C cooler than modern climate.
Notes:

Arktisen keskuksen tiedotteita = Arctic Centre Reports. Vol. 51 :1-102 (2007).

Academic dissertation to be presented with the assent of the Faculty of Science, University of Oulu, for public discussion in Arktikum (Aurora Hall), Rovaniemi, on November 16th, 2007, at 12 noon.

Keywords: 551.32 -- Glaciology.
551.324 -- Land ice.
551.324.22 -- Glaciers.
551.324.43 -- Land ice, regime and mass balance.
551.324.5 -- Land ice, flow.
551.321 -- Glaciological methods and instruments.
54.027 -- Isotope analysis.
551.583.3 -- Climatic changes, Quaternary.
551.794 -- Holocene.
91(08) -- Expeditions: 1988- Finnish Antarctic Research Programme.
91(08) -- Expeditions: 1999-2001 FINARP.
91(08) -- Expeditions: 2003-04 FINARP.
E5 -- Glaciology: land ice.
(*7) -- Antarctic regions.
(*73) -- Dronning Maud Land.
(*732) -- Kronprinsesse Martha Kyst.
SPRI record no.: 183764

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100 1# ‡aSinisalo, Anna.
245 10 ‡aGeophysical exploration of Antarctic blue ice areas (BIAs) for paleoclimate applications /‡cAnna Sinisalo.
260 ## ‡a[S.l.] :‡b[s.n.],‡c2007.
300 ## ‡ap. 1-102 :‡bill., diags., tables, maps.
500 ## ‡aArktisen keskuksen tiedotteita = Arctic Centre Reports. Vol. 51 :1-102 (2007).
500 ## ‡aAcademic dissertation to be presented with the assent of the Faculty of Science, University of Oulu, for public discussion in Arktikum (Aurora Hall), Rovaniemi, on November 16th, 2007, at 12 noon.
520 3# ‡aDescribes blue ice area at Scharffenbergbotnen in Dronning Maud Land, Antarctica, where surface mass balance, ice flow velocities, and age gradient of surface were determined by stake, ground penetrating radar, and differential GPS measurements during 1999-2001 and 2003-04 austral seasons. Surface age gradient and age of blue ice samples were estimated by adjusting flow model to match radiocarbon ages of ice samples from same area. Age gradients estimated by flow model, by following isochrones with ground penetrating radar, and by high resolution isotopic analysis were consistent. Dating model indicated that time period sampled was 500-year span of mid-Holocene, and isotopic analysis implied that mid-Holocene in Scharffenbergbotnen was about 1.0 +/- 0.3°C cooler than modern climate.
650 07 ‡a551.32 -- Glaciology.‡2udc
650 07 ‡a551.324 -- Land ice.‡2udc
650 07 ‡a551.324.22 -- Glaciers.‡2udc
650 07 ‡a551.324.43 -- Land ice, regime and mass balance.‡2udc
650 07 ‡a551.324.5 -- Land ice, flow.‡2udc
650 07 ‡a551.321 -- Glaciological methods and instruments.‡2udc
650 07 ‡a54.027 -- Isotope analysis.‡2udc
650 07 ‡a551.583.3 -- Climatic changes, Quaternary.‡2udc
650 07 ‡a551.794 -- Holocene.‡2udc
650 07 ‡a91(08) -- Expeditions: 1988- Finnish Antarctic Research Programme.‡2udc
650 07 ‡a91(08) -- Expeditions: 1999-2001 FINARP.‡2udc
650 07 ‡a91(08) -- Expeditions: 2003-04 FINARP.‡2udc
650 07 ‡aE5 -- Glaciology: land ice.‡2local
651 #7 ‡a(*7) -- Antarctic regions.‡2udc
651 #7 ‡a(*73) -- Dronning Maud Land.‡2udc
651 #7 ‡a(*732) -- Kronprinsesse Martha Kyst.‡2udc
773 0# ‡7nnas ‡tArktisen keskuksen tiedotteita = Arctic Centre Reports. ‡gVol. 51 (2007) ‡wSPRI-115685
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