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.
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):
# | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
---|---|---|---|---|---|---|
1 | DEPTH, ice/snow | Depth ice/snow | m | Geocode | ||
2 | AGE | Age | ka BP | Geocode | ||
3 | Methane | CH4 | ppbv | Brook, Edward J | ||
4 | Gas age | Gas age | ka BP | Brook, Edward J | Calculated | according 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
1 Depth ice/snow [m] | 2 Age [ka BP] | 3 CH4 [ppbv] | 4 Gas age [ka BP] |
---|---|---|---|
116.3000 | 0.33700 | 739 | 0.133 |
116.7000 | 0.33900 | 737 | 0.135 |
117.3000 | 0.34100 | 753 | 0.138 |
117.6000 | 0.34300 | 754 | 0.140 |
147.1000 | 0.46600 | 730 | 0.273 |
149.3000 | 0.47700 | 701 | 0.284 |
151.3000 | 0.48600 | 694 | 0.294 |
214.3000 | 0.76000 | 700 | 0.565 |
274.1000 | 1.01900 | 715 | 0.830 |
314.1000 | 1.19400 | 663 | 1.007 |
393.0000 | 1.56600 | 665 | 1.369 |
435.0000 | 1.78000 | 651 | 1.584 |
455.0000 | 1.87800 | 654 | 1.679 |
475.1000 | 1.97300 | 637 | 1.779 |
535.1000 | 2.28000 | 626 | 2.088 |
615.1000 | 2.70400 | 596 | 2.510 |
634.1000 | 2.80900 | 615 | 2.615 |
655.1000 | 2.92200 | 665 | 2.730 |
736.1000 | 3.38800 | 647 | 3.198 |
755.1000 | 3.50300 | 590 | 3.310 |
874.1000 | 4.23200 | 609 | 4.035 |
919.7000 | 4.52400 | 598 | 4.328 |
991.1000 | 4.99500 | 588 | 4.802 |
1014.6000 | 5.15700 | 581 | 4.965 |
1074.2000 | 5.58600 | 592 | 5.387 |
1134.9000 | 6.05200 | 579 | 5.855 |
1235.5000 | 6.85400 | 603 | 6.659 |
1253.9000 | 7.00700 | 654 | 6.816 |
1334.9000 | 7.70200 | 634 | 7.510 |
1354.9000 | 7.87700 | 621 | 7.688 |
1375.1000 | 8.05700 | 613 | 7.867 |
1415.1000 | 8.43700 | 566 | 8.233 |
1455.1000 | 8.81900 | 662 | 8.631 |
1475.1000 | 9.01800 | 727 | 8.828 |
1495.0000 | 9.21600 | 653 | 9.026 |
1516.1000 | 9.44000 | 659 | 9.243 |
1535.0000 | 9.65400 | 682 | 9.451 |
1554.0000 | 9.87400 | 710 | 9.664 |
1575.1000 | 10.12300 | 749 | 9.914 |
1608.1000 | 10.55600 | 742 | 10.311 |
1615.0000 | 10.65400 | 708 | 10.399 |
1635.0000 | 10.94200 | 716 | 10.672 |
1655.0000 | 11.25100 | 732 | 10.957 |
1675.1000 | 11.59200 | 738 | 11.261 |
1681.9000 | 11.78200 | 681 | 11.407 |
1687.9000 | 11.98700 | 709 | 11.505 |
1688.2000 | 11.99800 | 737 | 11.510 |
1691.2000 | 12.10700 | 751 | 11.557 |
1693.0000 | 12.17500 | 755 | 11.589 |
1695.1000 | 12.24600 | 769 | 11.626 |
1695.7000 | 12.27100 | 686 | 11.641 |
1696.1000 | 12.28900 | 738 | 11.652 |
1697.0000 | 12.32300 | 693 | 11.675 |
1698.0000 | 12.36300 | 625 | 11.703 |
1699.0000 | 12.40000 | 591 | 11.729 |
1700.1000 | 12.44100 | 536 | 11.761 |
1701.5000 | 12.49300 | 534 | 11.805 |
1702.0000 | 12.51200 | 489 | 11.822 |
1704.1000 | 12.59500 | 485 | 11.901 |
1706.1000 | 12.67200 | 481 | 11.972 |
1708.5000 | 12.76000 | 525 | 12.054 |
1711.2000 | 12.85600 | 458 | 12.146 |
1715.1000 | 12.95700 | 510 | 12.255 |
1721.9000 | 13.10500 | 497 | 12.500 |
1728.7000 | 13.29800 | 585 | 12.822 |
1735.1000 | 13.44600 | 703 | 12.991 |
1741.9000 | 13.58500 | 618 | 13.151 |
1755.0000 | 13.86400 | 675 | 13.498 |
1768.2000 | 14.15300 | 666 | 13.783 |
1775.1000 | 14.28200 | 651 | 13.921 |
1789.2000 | 14.51300 | 661 | 14.228 |
1794.2000 | 14.59500 | 661 | 14.324 |
1795.1000 | 14.61200 | 667 | 14.343 |
1801.2000 | 14.79300 | 622 | 14.486 |
1815.1000 | 15.29900 | 593 | 14.718 |
1828.1000 | 15.83300 | 482 | 15.177 |
1835.1000 | 16.12500 | 481 | 15.440 |
1855.1000 | 16.88500 | 462 | 16.225 |
1868.2000 | 17.42900 | 450 | 16.767 |
1878.2000 | 17.89200 | 404 | 17.263 |
1895.1000 | 18.73400 | 406 | 18.190 |
1902.1000 | 19.09200 | 380 | 18.587 |
1908.0000 | 19.34400 | 356 | 18.864 |
1915.1000 | 19.67500 | 396 | 19.163 |
1935.1000 | 20.63800 | 394 | 20.069 |
1975.1000 | 22.83900 | 413 | 22.123 |
1995.0000 | 23.94800 | 425 | 23.123 |
2002.0000 | 24.36300 | 395 | 23.298 |
2015.0000 | 25.19100 | 414 | 24.288 |
2035.1000 | 26.55100 | 384 | 25.786 |
2042.0000 | 26.98000 | 393 | 26.256 |
2048.0000 | 27.38100 | 362 | 26.672 |
2061.0000 | 28.21700 | 389 | 27.653 |
2068.0000 | 28.64900 | 459 | 27.844 |
2088.0000 | 29.84000 | 490 | 28.886 |
2102.0000 | 30.74500 | 412 | 29.549 |
2108.0000 | 31.14000 | 396 | 29.987 |
2115.1000 | 31.58700 | 466 | 30.460 |
2122.0000 | 32.00300 | 427 | 31.326 |
2135.1000 | 32.85200 | 525 | 32.062 |
2148.1000 | 33.72800 | 462 | 33.244 |
2155.1000 | 34.19200 | 542 | 33.452 |
2162.0000 | 34.59100 | 430 | 33.692 |
2168.1000 | 34.88800 | 443 | 34.213 |
2175.1000 | 35.19000 | 590 | 34.737 |
2188.1000 | 35.94900 | 583 | 35.072 |
2195.1000 | 36.33300 | 444 | 35.334 |
2202.0000 | 36.70900 | 461 | 36.112 |
2215.1000 | 37.42000 | 577 | 37.041 |
2224.0000 | 37.93000 | 554 | 37.595 |
2228.1000 | 38.20800 | 571 | 37.868 |
2234.0000 | 38.56500 | 560 | 38.142 |
2235.0000 | 38.63900 | 623 | 38.166 |
2242.0000 | 39.17900 | 610 | 38.349 |
2246.0000 | 39.51300 | 466 | 38.619 |
2249.9000 | 39.84400 | 460 | 38.913 |
2252.0000 | 40.00600 | 463 | 39.090 |
2254.0000 | 40.13400 | 403 | 39.291 |
2256.0000 | 40.25500 | 461 | 39.521 |
2265.9000 | 40.73200 | 471 | 40.043 |
2271.9000 | 41.00500 | 442 | 40.415 |
2277.9000 | 41.26900 | 489 | 40.800 |
2281.9000 | 41.49100 | 500 | 40.910 |
2287.9000 | 41.79600 | 433 | 41.094 |
2293.9000 | 42.11000 | 408 | 41.590 |
2297.9000 | 42.30400 | 458 | 41.873 |
2304.0000 | 42.58100 | 486 | 42.162 |
2309.9000 | 42.96100 | 514 | 42.305 |
2313.9000 | 43.19700 | 474 | 42.406 |
2319.9000 | 43.52700 | 414 | 42.880 |
2323.9000 | 43.76400 | 434 | 43.207 |
2325.9000 | 43.88100 | 474 | 43.331 |
2327.9000 | 43.99700 | 439 | 43.470 |
2330.0000 | 44.11100 | 470 | 43.607 |
2331.9000 | 44.20500 | 431 | 43.725 |
2333.9000 | 44.29500 | 473 | 43.836 |
2335.9000 | 44.38800 | 497 | 43.958 |
2337.9000 | 44.48700 | 478 | 44.087 |
2339.9000 | 44.57900 | 478 | 44.196 |
2341.9000 | 44.67100 | 482 | 44.296 |
2343.9000 | 44.75700 | 487 | 44.382 |
2345.9000 | 44.84600 | 514 | 44.477 |
2347.9000 | 44.93600 | 491 | 44.580 |
2349.9000 | 45.02400 | 489 | 44.684 |
2351.9000 | 45.10300 | 534 | 44.776 |
2355.9000 | 45.27900 | 511 | 44.967 |
2359.9000 | 45.46700 | 508 | 45.110 |
2363.9000 | 45.76300 | 533 | 45.206 |
2367.9000 | 46.07200 | 528 | 45.340 |
2373.9000 | 46.54300 | 460 | 45.799 |
2378.0000 | 46.88000 | 454 | 46.195 |
2383.9000 | 47.35700 | 450 | 46.685 |
2399.9000 | 48.63100 | 486 | 47.634 |
2405.9000 | 49.14500 | 462 | 48.047 |
2409.9000 | 49.50700 | 482 | 48.308 |
2416.0000 | 50.01600 | 515 | 48.748 |
2421.9000 | 50.48200 | 501 | 49.132 |
2425.9000 | 50.82900 | 527 | 49.386 |
2431.9000 | 51.35700 | 536 | 49.925 |
2437.9000 | 51.89000 | 548 | 50.461 |
2441.9000 | 52.20300 | 548 | 50.777 |
2453.9000 | 53.16200 | 546 | 51.778 |
2453.9000 | 53.16200 | 533 | 51.778 |
2458.0000 | 53.46700 | 555 | 52.012 |
2461.9000 | 53.78500 | 515 | 52.434 |
2465.9000 | 54.09500 | 438 | 53.080 |
2470.0000 | 54.43100 | 493 | 53.568 |
2471.9000 | 54.59000 | 561 | 53.743 |
2473.9000 | 54.75600 | 549 | 53.988 |
2481.8000 | 55.42600 | 538 | 55.134 |
2485.9000 | 55.74700 | 547 | 55.615 |
2492.0000 | 56.22900 | 581 | 56.305 |
2493.9000 | 56.39400 | 573 | 56.456 |
2497.9000 | 56.73900 | 629 | 56.840 |
2499.9000 | 56.92200 | 562 | 57.147 |
2501.9000 | 57.09900 | 481 | 57.396 |
2503.9000 | 57.27500 | 592 | 57.591 |
2506.0000 | 57.46800 | 597 | 57.794 |
2507.9000 | 57.63800 | 602 | 57.954 |
2510.0000 | 57.83000 | 507 | 58.077 |
2511.9000 | 57.99700 | 589 | 58.212 |
2513.9000 | 58.16400 | 452 | 58.425 |
2515.9000 | 58.33000 | 402 | 58.664 |
2518.0000 | 58.50900 | 461 | 58.921 |
2519.9000 | 58.67100 | 435 | 59.141 |
2521.9000 | 58.85000 | 466 | 59.370 |
2525.9000 | 59.20000 | 489 | 59.777 |
2530.0000 | 59.54300 | 450 | 60.327 |
2532.0000 | 59.71500 | 460 | 60.778 |
2533.9000 | 59.87400 | 454 | 61.218 |
2534.9000 | 59.95300 | 476 | 61.422 |
2537.9000 | 60.18700 | 521 | 61.696 |
2539.9000 | 60.34200 | 538 | 61.817 |
2541.9000 | 60.50200 | 469 | 61.940 |
2543.9000 | 60.66800 | 464 | 62.092 |
2545.9000 | 60.82900 | 524 | 62.300 |
2547.9000 | 60.99700 | 452 | 62.584 |
2549.9000 | 61.16100 | 504 | 62.874 |
2551.9000 | 61.36100 | 432 | 63.146 |
2553.9000 | 61.62400 | 512 | 63.373 |
2555.9000 | 61.91600 | 490 | 63.564 |
2557.9000 | 62.18300 | 457 | 63.817 |
2559.9000 | 62.46800 | 490 | 64.241 |
2561.9000 | 62.75800 | 464 | 64.873 |
2563.9000 | 63.06700 | 512 | 65.263 |
2565.9000 | 63.39500 | 467 | 65.438 |
2567.9000 | 63.76400 | 509 | 65.691 |
2569.9000 | 64.14300 | 448 | 66.233 |
2571.9000 | 64.50900 | 446 | 66.741 |
2573.9000 | 64.86400 | 474 | 67.037 |
2577.9000 | 65.52000 | 488 | 67.582 |
2581.9000 | 66.14900 | 506 | 68.125 |
2585.9000 | 66.87800 | 488 | 68.413 |
2589.9000 | 67.63400 | 453 | 68.471 |
2594.0000 | 68.41300 | 454 | 69.736 |
2597.9000 | 69.17700 | 463 | 70.519 |
2599.9000 | 69.56700 | 467 | 70.852 |
2601.9000 | 69.94300 | 440 | 71.186 |
2605.9000 | 70.72700 | 512 | 71.824 |
2607.9000 | 71.11600 | 457 | 72.146 |
2609.9000 | 71.50800 | 472 | 72.441 |
2614.0000 | 72.31000 | 497 | 72.747 |
2617.9000 | 73.10500 | 448 | 72.998 |
2619.9000 | 73.51000 | 416 | 73.664 |
2621.9000 | 73.88800 | 454 | 74.118 |
2626.0000 | 74.72500 | 443 | 74.820 |
2629.9000 | 75.53600 | 577 | 75.482 |
2631.9000 | 75.93300 | 475 | 75.778 |
2633.9000 | 76.32500 | 461 | 76.097 |
2637.9000 | 77.10700 | 573 | 76.739 |
2639.9000 | 77.49300 | 510 | 77.069 |
2641.9000 | 77.85900 | 506 | 77.372 |
2643.9000 | 78.22300 | 522 | 77.686 |
2645.9000 | 78.60100 | 514 | 78.032 |
2649.9000 | 79.31900 | 574 | 78.708 |
2651.9000 | 79.70000 | 559 | 79.040 |
2653.9000 | 80.08300 | 590 | 79.406 |
2655.9000 | 80.45300 | 580 | 79.779 |
2657.9000 | 80.82400 | 577 | 80.156 |
2659.9000 | 81.18200 | 591 | 80.543 |
2661.9000 | 81.55000 | 591 | 80.924 |
2664.0000 | 81.96000 | 649 | 81.326 |
2666.9000 | 82.50600 | 639 | 81.890 |
2667.9000 | 82.69900 | 726 | 82.083 |
2671.9000 | 83.44700 | 710 | 82.868 |
2673.9000 | 83.84400 | 666 | 83.283 |
2675.9000 | 84.24900 | 736 | 83.624 |
2677.9000 | 84.63300 | 710 | 83.956 |
2679.9000 | 85.02200 | 505 | 84.347 |
2682.0000 | 85.45900 | 464 | 84.725 |
2685.9000 | 86.26700 | 462 | 85.495 |
2688.0000 | 86.70700 | 526 | 85.889 |
2689.9000 | 87.07900 | 462 | 86.293 |
2691.9000 | 87.47900 | 449 | 86.876 |
2693.9000 | 87.87000 | 512 | 87.439 |
2696.0000 | 88.28500 | 494 | 87.939 |
2697.9000 | 88.65400 | 505 | 88.382 |
2699.9000 | 89.06400 | 487 | 88.861 |
2701.9000 | 89.49200 | 534 | 89.322 |
2703.9000 | 89.91500 | 495 | 89.730 |
2705.9000 | 90.32800 | 447 | |
2707.9000 | 90.74500 | 444 | 90.580 |
2709.9000 | 91.15000 | 449 | 91.026 |
2711.9000 | 91.54900 | 443 | 91.487 |
2713.9000 | 91.95300 | 430 | 91.983 |
2715.9000 | 92.36300 | 470 | 92.477 |
2718.0000 | 92.78400 | 488 | 93.012 |
2719.9000 | 93.16600 | 525 | 93.529 |
2721.9000 | 93.56500 | 430 | 94.051 |
2723.9000 | 93.97400 | 464 | 94.582 |
2725.9000 | 94.40700 | 476 | 95.101 |
2729.9000 | 95.28300 | 528 | 96.140 |
2731.9000 | 95.70700 | 513 | 96.687 |
2733.9000 | 96.13200 | 535 | 97.215 |
2736.0000 | 96.56200 | 588 | 97.745 |
2739.9000 | 97.39700 | 584 | 98.697 |
2741.9000 | 97.82300 | 572 | 99.145 |
2744.0000 | 98.26400 | 548 | 99.610 |
2745.9000 | 98.64800 | 566 | 99.969 |
2748.0000 | 99.07800 | 561 | 100.315 |
2750.0000 | 99.51500 | 635 | 100.614 |
2751.9000 | 99.90500 | 640 | 100.958 |
2753.9000 | 100.30700 | 594 | 101.369 |
2756.0000 | 100.72500 | 502 | 101.794 |
2758.0000 | 101.13500 | 578 | 102.158 |
2759.9000 | 101.53400 | 643 | 102.507 |
2762.0000 | 101.99000 | 542 | 102.939 |
2764.0000 | 102.42500 | 447 | 103.333 |
2766.0000 | 102.85500 | 514 | 103.757 |
2768.0000 | 103.30100 | 501 | 104.184 |
2769.9000 | 103.74100 | 471 | 104.541 |
2772.0000 | 104.20200 | 512 | 104.933 |
2773.9000 | 104.61700 | 486 | 105.264 |
2775.9000 | 105.08100 | 487 | 105.572 |
2779.9000 | 106.01000 | 481 | 106.268 |
2781.9000 | 106.48800 | 475 | 106.624 |
2783.9000 | 106.96400 | 452 | 106.957 |
2785.9000 | 107.43000 | 536 | 107.322 |
2787.9000 | 107.89800 | 503 | 107.708 |
2789.9000 | 108.36000 | 557 | 108.116 |
2792.0000 | 108.85600 | 512 | 108.531 |
2793.5000 | 109.21400 | 570 | 108.655 |
2795.9000 | 109.76700 | 496 | 108.847 |
2797.9000 | 110.21800 | 561 | 109.007 |
2799.9000 | 110.67100 | 500 | 109.175 |
2802.0000 | 111.16700 | 675 | 109.535 |
2803.9000 | 111.59500 | 644 | 109.808 |
2806.0000 | 112.07800 | 656 | 110.111 |
2808.0000 | 112.54500 | 495 | 110.399 |
3038.0000 | 90.32800 | 90.134 |