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PANGAEA.
Data Publisher for Earth & Environmental Science

Brook, Edward J (1999): GISP2 Methane Concentrations [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.56093

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

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Related to:
Brook, Edward J; Sowers, Todd A; Orchardo, J (1996): Rapid variations in atmospheric methane concentration during the past 110,000 years. Science, 273(5278), 1087-1091, https://doi.org/10.1126/science.273.5278.1087
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
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: 116.3000 m * Maximum DEPTH, ice/snow: 3038.0000 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:
Ice ages were calculated by linear interpolation from the Meese et al. timescale. Depth is midpoint of sample.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 DEPTH, ice/snowDepth ice/snowmGeocode
2 AGEAgeka BPGeocode
3 MethaneCH4ppbvBrook, Edward J
4 Gas ageGas ageka BPBrook, Edward JCalculatedaccording to the methods described in Brook et al. 1996
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
618 data points

Data

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

1 
Depth ice/snow [m]		2 
Age [ka BP]		3 
CH4 [ppbv]		4 
Gas age [ka BP]
116.30000.337007390.133
116.70000.339007370.135
117.30000.341007530.138
117.60000.343007540.140
147.10000.466007300.273
149.30000.477007010.284
151.30000.486006940.294
214.30000.760007000.565
274.10001.019007150.830
314.10001.194006631.007
393.00001.566006651.369
435.00001.780006511.584
455.00001.878006541.679
475.10001.973006371.779
535.10002.280006262.088
615.10002.704005962.510
634.10002.809006152.615
655.10002.922006652.730
736.10003.388006473.198
755.10003.503005903.310
874.10004.232006094.035
919.70004.524005984.328
991.10004.995005884.802
1014.60005.157005814.965
1074.20005.586005925.387
1134.90006.052005795.855
1235.50006.854006036.659
1253.90007.007006546.816
1334.90007.702006347.510
1354.90007.877006217.688
1375.10008.057006137.867
1415.10008.437005668.233
1455.10008.819006628.631
1475.10009.018007278.828
1495.00009.216006539.026
1516.10009.440006599.243
1535.00009.654006829.451
1554.00009.874007109.664
1575.100010.123007499.914
1608.100010.5560074210.311
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1675.100011.5920073811.261
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1708.500012.7600052512.054
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1715.100012.9570051012.255
1721.900013.1050049712.500
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1902.100019.0920038018.587
1908.000019.3440035618.864
1915.100019.6750039619.163
1935.100020.6380039420.069
1975.100022.8390041322.123
1995.000023.9480042523.123
2002.000024.3630039523.298
2015.000025.1910041424.288
2035.100026.5510038425.786
2042.000026.9800039326.256
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2088.000029.8400049028.886
2102.000030.7450041229.549
2108.000031.1400039629.987
2115.100031.5870046630.460
2122.000032.0030042731.326
2135.100032.8520052532.062
2148.100033.7280046233.244
2155.100034.1920054233.452
2162.000034.5910043033.692
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2175.100035.1900059034.737
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2195.100036.3330044435.334
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2513.900058.1640045258.425
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2533.900059.8740045461.218
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2537.900060.1870052161.696
2539.900060.3420053861.817
2541.900060.5020046961.940
2543.900060.6680046462.092
2545.900060.8290052462.300
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2551.900061.3610043263.146
2553.900061.6240051263.373
2555.900061.9160049063.564
2557.900062.1830045763.817
2559.900062.4680049064.241
2561.900062.7580046464.873
2563.900063.0670051265.263
2565.900063.3950046765.438
2567.900063.7640050965.691
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2571.900064.5090044666.741
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2605.900070.7270051271.824
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