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Record #111504:

Initial measurements of CO₂ concentrations (1530 to 1940 AD) in air occluded in the GISP 2 ice core from central Greenland / M. Wahren, D. Allen, B. Deck, A. Herchenroder.

Title: Initial measurements of CO₂ concentrations (1530 to 1940 AD) in air occluded in the GISP 2 ice core from central Greenland / M. Wahren, D. Allen, B. Deck, A. Herchenroder.
Author(s): Wahren, M.
Allen, D.
Deck, B.
Herchenroder, A.
Date: 1991.
In: Geophysical Research Letters. (1991.), Vol. 18(8) (1991)
Abstract: Measurements performed using dry extraction technique and tunable diode laser absorption spectrometry. Absolute dating of air in bubbles was obtained from location of ¹⁴CO₂ bomb peak, relative dating from seasonal variations of H₂¹⁸O, and electroconductivity. Results for preindustrial times show constant atmospheric CO₂ levels of 280±5 ppmv between 1530 and 1810 AD. Thereafter concentrations rise abruptly. Record connects smoothly to direct atmospheric observations from Mauna Loa.
Notes:

Geophysical Research Letters. Vol. 18(8) :1457-1460 (1991).

Keywords: 551.32 -- Glaciology.
551.324 -- Land ice.
551.324.84 -- Land ice, impurities.
54 -- Chemistry.
54.027 -- Isotope analysis.
546.264-31 -- Carbon dioxide.
551.321.2 -- Snow and ice, methods of sampling, excavating, drilling, etc.
622.14 -- Core sampling, ice and snow.
551.583.3 -- Climatic changes, Quaternary.
E5 -- Glaciology: land ice.
(*38) -- Greenland.
SPRI record no.: 111504

MARCXML

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007 ta
008 221003s1991####xx#a##|##|###|0||#0|eng#d
035 ## ‡aSPRI-111504
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245 00 ‡aInitial measurements of CO₂ concentrations (1530 to 1940 AD) in air occluded in the GISP 2 ice core from central Greenland /‡cM. Wahren, D. Allen, B. Deck, A. Herchenroder.
260 ## ‡a[S.l.] :‡b[s.n.],‡c1991.
300 ## ‡ap. 1457-1460 :‡bdiags., table.
500 ## ‡aGeophysical Research Letters. Vol. 18(8) :1457-1460 (1991).
520 3# ‡aMeasurements performed using dry extraction technique and tunable diode laser absorption spectrometry. Absolute dating of air in bubbles was obtained from location of ¹⁴CO₂ bomb peak, relative dating from seasonal variations of H₂¹⁸O, and electroconductivity. Results for preindustrial times show constant atmospheric CO₂ levels of 280±5 ppmv between 1530 and 1810 AD. Thereafter concentrations rise abruptly. Record connects smoothly to direct atmospheric observations from Mauna Loa.
650 07 ‡a551.32 -- Glaciology.‡2udc
650 07 ‡a551.324 -- Land ice.‡2udc
650 07 ‡a551.324.84 -- Land ice, impurities.‡2udc
650 07 ‡a54 -- Chemistry.‡2udc
650 07 ‡a54.027 -- Isotope analysis.‡2udc
650 07 ‡a546.264-31 -- Carbon dioxide.‡2udc
650 07 ‡a551.321.2 -- Snow and ice, methods of sampling, excavating, drilling, etc.‡2udc
650 07 ‡a622.14 -- Core sampling, ice and snow.‡2udc
650 07 ‡a551.583.3 -- Climatic changes, Quaternary.‡2udc
650 07 ‡aE5 -- Glaciology: land ice.‡2local
651 #7 ‡a(*38) -- Greenland.‡2udc
700 1# ‡aWahren, M.
700 1# ‡aAllen, D.
700 1# ‡aDeck, B.
700 1# ‡aHerchenroder, A.
773 0# ‡7nnas ‡tGeophysical Research Letters. ‡gVol. 18(8) (1991) ‡wSPRI-1033
917 ## ‡aUnenhanced record from Muscat, imported 2019
948 3# ‡a20221003