GRIP Carbon Dioxide

REFERENCES: 

Anklin, M., J. Schwander, B. Stauffer, J. Tschumi, A. Fuchs, J.M. Barnola,
and D. Raynaud. 1997. CO2 record between 40 and 8kyr B.P. from the
Greenland Ice Core Project ice core. Journal of Geophysical Research
102:26539-26545.

Anklin, M., J.M. Barnola, J. Schwander, B. Stauffer, and D. Raynaud. 1995.
Processes affecting the CO2 concentrations measured in Greenland ice.
Tellus 47B:461-470.

Barnola, J.M., M. Anklin, J. Porcheron, D. Raynaud, J. Schwander, and B.
Stauffer. 1995. CO2 evolution during the last millennium as recorded by
Antarctic and Greenland ice. Tellus 47B:264-272.

DATA DESCRIPTION: 

The CO2 concentration was measured with an infrared laser absorption
spectrometer (IRLS). CO2 measurements were performed on 0.55m long
sections. For each section, several samples of size 2.5cm along these
sections were measured and averaged. The weight of one sample was
approximately 5g. The file contains the mean depth (m) (column 1) and the
mean CO2 concentration (ppmv) (column 2) of these samples within one
section. 
 	

DATA:	

Depth (m)	CO2
Midpoint	(ppmv)

1320.903	291.6
1343.068	207.8
1364.600	230.5
1386.600	226
1409.088	248
1431.075	256.2
1458.100	276.8
1469.096	244.9
1480.100	250
1491.573	271.9
1502.104	271.8
1513.096	267.4
1524.08	263.3
1535.1	257.9
1546.1	273.2
1557.1	294.4
1568.1	307.8
1579.1	301.7
1590.1	303.1
1601.1	303
1612.1	308.7
1621.45	288.1
1628.6	275
1639.6	289.3
1650.75	232.8
1662.15	266.7
1672.6	291.8
1683.6	275.1
1695.15	263.1
1705.6	295.2
1716.6	251.4
1728.15	274.4
1738.6	261.8
1749.6	255.4
1760.6	256.4
1771.588	230
1782.595	231.3
1793.6	231
1804.6	226.5
1816.142	229.2
1827.163	218.3
1837.6	210.5
1848.6	197.6
1859.6	220.1
1870.6	215.5
1882.7	202.7
1892.6	213.1
1903.6	217.8
1915.15	191.3
1925.05	205.9
1937.15	211.4
1947.6	211.2
1958.6	201.8
1969.6	199.6
1981.7	178
1992.15	202.4
2002.6	230.1
2013.6	229.1
2024.6	271.2
2035.848	225.4
2046.613	210.4
2058.15	244.7
2068.6	218.2
2079.6	202.1
2101.613	218.1
2112.838	262.9
2124.15	213.2
2157.15	219.3
2178.6	249.6
2189.588	288.3
2201.15	230.6
2266.6	256.9
2269.342	297.7
2271	235.2
2272.888	216
2277.613	236.6