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Sowers, Todd A (1999): GISP2 Isotope Concentrations in Trapped Air [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.56091

Always quote citation above when using data! You can download the citation in several formats below.

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Related to:
Bender, Michael L; Sowers, Todd A; Dickson, M L; Orchardo, J; Grootes, Pieter Meiert; Mayewski, Paul Andrew; Meese, D A (1994): Climate correlations between Greenland and Antarctica during the past 100,000 years. Nature, 372(6507), 663-666, https://doi.org/10.1038/372663a0
GRIP/GISP (1997): The Greenland Summit Ice Cores CD-ROM GISP2/GRIP. National Snow and Ice Data Center, University of Colorado at Boulder, and World Data Center for Paleoclimatology, National Geophysical Data Center, Boulder Colorado, CD-ROM, grip-gisp.iso
Sowers, Todd A; Brook, Edward J; Etheridge, David; Blunier, Thomas; Fuchs, A; Leuenberger, Markus Christian; Chappellaz, Jérôme A; Barnola, Jean-Marc; Wahlen, Martin; Deck, Bruce; Weyhenmeyer, Constanze E (1997): An interlaboratory comparison of techniques for extracting and analyzing trapped gases in ice cores. Journal of Geophysical Research: Oceans, 102(C12), 26527-26538, https://doi.org/10.1029/97JC00633
Project(s):
Greenland Ice Core Projects (GRIP/GISP/NGRIP)
Coverage:
Latitude: 72.970000 * Longitude: -38.800000
Date/Time Start: 1990-01-01T00:39:00 * Date/Time End: 1990-01-01T00:39:00
Minimum DEPTH, ice/snow: 72.80 m * Maximum DEPTH, ice/snow: 2235.00 m
Event(s):
GISP2 * Latitude: 72.970000 * Longitude: -38.800000 * Date/Time: 1990-01-01T00:39:00 * Elevation: 3208.0 m * Recovery: 3053 m * Campaign: GISP * Basis: Sampling/drilling ice * Method/Device: Drilling/drill rig (DRILL) * Comment: GISP2 is a combination of the shallow B and the deeper D core; about 200 ka
Comment:
Data in delta notation, standard is present day atmosphere. Ages are ice ages, calculated by linear interpolation of the Meese et al. (1997) timescale. Not gas ages: no calculation of the ice age-gas age offset in this data set.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
DEPTH, ice/snowDepth ice/snowmGeocode
AGEAgeka BPGeocode
δ15N, gasδ15N-N2‰ airSowers, Todd Astandard is the present day atmosphere
δ18O, gasδ18O-O2Sowers, Todd Astandard is the present day atmosphere
δ18O, adjusted/correctedδ18OSowers, Todd AGravitationally corrected 18O value, where 18Oatm = 18O - 2(15N).
Oxygen/Nitrogen ratioO2/N2Sowers, Todd AGravitationally corrected elemental ratios
Argon/Nitrogen ratioAr/N2Sowers, Todd AGravitationally corrected elemental ratios
Oxygen/Argon ratioO2/ArSowers, Todd AGravitationally corrected elemental ratios
Carbon dioxide/Nitrogen ratioCO2/N2Sowers, Todd AGravitationally corrected elemental ratios
Size:
1504 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Depth ice/snow [m]

Age [ka BP]

δ15N-N2 [‰ air]

δ18O-O2 []

δ18O []

O2/N2

Ar/N2

O2/Ar

CO2/N2
72.800.169630.2700.690.200-9.000-2.90-6.10187.70
72.800.169630.2800.670.100-9.000-5.70-3.30227.90
75.300.179150.3200.770.100-19.000-9.10-9.90216.50
75.300.179150.3700.720.000-18.500-9.90-8.70223.60
78.200.191000.1900.500.100-10.300-5.60-4.70174.90
78.200.191000.3400.660.000-10.000-5.30-4.70200.50
80.800.200150.3700.750.000-19.300-9.50-10.00501.40
80.800.200150.4900.75-0.200-15.500-8.30-7.30293.20
83.900.212260.3600.740.000-6.300-3.80-2.50249.40
84.500.214570.3300.710.000-10.300-5.30-5.00180.50
84.500.214570.5400.79-0.300-13.300-8.60-4.70227.70
105.000.293410.3400.640.000-4.100-4.200.1022.10
105.000.293410.2700.620.100-7.600
124.900.372330.2600.660.100-8.100-3.40-4.20100.30
124.900.372330.3000.770.200-3.800-2.10-6.0064.40
133.900.410580.3300.660.000-12.800-8.30-6.505.40
133.900.410580.3000.700.100-13.800-6.90-7.40164.80
133.900.410580.2900.670.100-13.300-8.80-6.20-62.20
145.300.458420.2500.620.100-4.300-1.60-2.10-17.30
145.300.458420.2400.600.100-12.600-2.50-1.802.60
146.900.465040.3100.640.000-12.000-6.10-7.30230.00
146.900.465040.3200.57-0.100-4.000-3.90-0.20263.70
146.900.465040.2700.500.000-5.300-5.900.0054.50
146.900.465040.2900.570.000-5.300-3.80-1.10249.50
146.900.465040.3000.700.100-10.1001.00-11.20-130.90
146.900.465040.2200.580.100-9.500-3.00-6.00-155.20
146.900.465040.3300.60-0.100-8.800-5.60-3.80606.70
146.900.465040.1600.330.000-5.600-3.80-1.60280.60
146.900.465040.3400.59-0.100-12.600-6.00-3.70348.20
149.900.478960.3100.580.000-6.300-5.00-1.10247.70
163.900.538700.3100.660.000-9.600-5.20-7.4032.60
212.900.753050.2100.650.200-6.300-3.20-6.4017.70
212.900.753050.3500.65-0.100-3.100-4.70-1.60320.70
233.900.845350.3100.710.100-9.400-5.70-4.00196.70
233.900.845350.3300.750.100-11.400-7.30-4.9090.90
233.900.845350.3400.950.300-23.000-8.10-15.90255.80
233.900.845350.3200.870.200-21.300-7.70-14.30339.60
314.001.193300.3500.820.100-8.900-3.30-5.50210.40
314.001.193300.3400.880.200-13.900-5.10-10.70286.40
314.001.193300.3100.640.000-2.900-4.401.20115.10
314.001.193300.3000.640.000-4.400-6.100.603.10
358.901.401440.2900.700.1002.000-0.70-0.100.30
358.901.401440.3100.570.000-1.700-4.70-0.60-111.40
364.001.426150.2700.580.000-1.900
374.901.479240.2900.50-0.100-4.100-5.30-0.50-232.80
374.901.479240.2000.36-0.1000.600-2.300.6030.00
375.001.479590.2700.610.100-9.300-5.50-6.50182.40
375.001.479590.3200.610.000-4.500-5.00-1.70181.30
375.001.479590.4000.64-0.200-4.000-4.10-1.40438.20
393.001.566080.3400.54-0.1000.700-3.003.30291.50
415.001.674950.2600.600.100-10.200-6.60-4.80-98.20
415.001.674950.3000.590.000-10.200-7.60-3.60-67.10
435.001.779560.3500.680.000-9.100-4.90-3.00235.50
435.001.779560.3200.680.000-8.400-4.20-4.50194.70
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454.901.877740.2800.590.000-0.40029.70-2.00-58.40
455.001.878230.3400.57-0.100-1.100-2.501.00466.80
455.001.878230.3100.600.000-0.600-2.400.70413.00
474.901.972260.2800.540.000-2.500-5.801.30-109.80
474.901.972260.2800.620.1001.100-1.400.600.90
498.902.095000.3000.660.100-7.600-4.90-4.70-107.70
498.902.095000.3000.630.000-7.200-5.10-3.6032.30
514.902.178410.3000.570.000-6.200-4.20-4.80-50.10
514.902.178410.4000.57-0.200-8.600-7.40-2.50-51.40
535.002.280000.2900.620.000-7.900-4.30-4.80141.60
535.002.280000.2700.710.200-10.900-4.60-8.40132.30
555.002.382670.2300.480.000-8.400-4.90-3.20384.20
555.002.382670.3400.61-0.100-3.600-4.000.50319.00
579.002.509940.2900.640.000-7.700-5.30-4.00277.50
579.002.509940.2500.580.100-6.900-4.30-3.50392.00
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579.002.509940.3100.630.000-6.700-5.10-3.20128.00
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615.002.703660.3300.630.000-8.900-9.30-2.40349.30
633.902.808200.3200.56-0.100-3.60018.30-22.90216.70
634.002.808700.3000.48-0.100-0.500-4.000.80-75.10
634.002.808700.3200.820.200-9.800-1.10-9.50175.00
654.902.921500.2600.560.100-2.90024.80-27.50126.20
654.902.921500.2800.550.000-3.00016.10-20.90-44.00
655.002.921920.3300.630.000-1.000-1.70-1.50213.50
655.002.921920.3100.610.000-1.300-1.60-0.50161.90
736.003.387820.3700.68-0.100-7.00022.10-28.401221.90
736.003.387820.3400.700.000-6.40023.10-28.50493.00
756.003.508400.2800.530.000-4.400-3.80-1.00265.10
756.003.508400.3400.53-0.100-4.700-4.40-1.10288.50
795.003.740560.3000.55-0.100-6.60026.50-30.60316.80
795.003.740560.2700.520.000-4.60026.50-30.00-47.30
816.003.866820.3100.680.100-10.300-1.50-8.40338.70
816.003.866820.2800.550.000-8.900-4.40-4.3017.40
836.703.996540.3300.51-0.100-3.100-2.50-0.50161.40
853.904.105230.3300.48-0.200-2.30023.70-25.20853.40
853.904.105230.3100.48-0.100-0.80020.40-22.2014.10
854.804.111250.3100.45-0.200-5.70025.40-29.90-28.60
854.804.111250.3000.50-0.100-5.00027.20-31.1030.70
874.004.231650.1300.290.000-6.20021.00-26.5017.70
874.004.231650.2600.47-0.100-6.90023.20-28.7057.10
919.604.522970.3100.52-0.100-5.500-3.20-1.50416.80
919.604.522970.3100.54-0.100-5.800-3.00-2.90263.30
943.004.675940.3100.41-0.200-4.30024.50-28.60119.40
943.004.675940.3000.47-0.100-2.600
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1014.605.157040.2400.43-0.100-8.60019.20-27.00184.60
1014.605.157040.2700.38-0.200-5.00023.00-26.60-52.30
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1038.005.323390.3700.52-0.200-12.70016.20-28.50566.50
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1074.205.585650.3000.34-0.300-2.70023.40-26.30150.10
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1093.905.738640.3200.42-0.200-11.400-7.30-5.70496.50
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1114.505.898040.2300.25-0.2002.10030.50-27.0015.60
1134.806.050850.3100.44-0.200-12.10027.30-38.407.40
1134.806.050850.3200.43-0.200-12.20027.70-38.00-7.10
1185.506.450200.2800.42-0.100-28.7006.70-36.20-72.10
1185.506.450200.2700.39-0.200-26.8009.40-37.20-27.60
1193.906.516630.5100.65-0.400-26.100-5.00-22.60600.90
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1235.406.853280.3200.40-0.2006.20036.50-28.60129.10
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1935.0020.633000.4101.841.000-5.900-1.90-3.60-70.40
1955.0021.689000.4301.851.000-9.900-4.70-5.70152.00
1975.0022.833000.4101.851.000-9.00017.20-26.80-109.10
1975.0022.833000.4301.821.000-9.50018.00-27.9036.60
1995.0023.948000.5502.010.900-18.300-3.40-13.701092.00
1995.0023.948000.4701.941.000-14.300-0.90-12.30-199.30
2015.0025.191000.5201.750.700-10.10014.30-25.002595.20
2015.0025.191000.3701.701.000-6.60014.70-22.20-178.90
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