Vostok Ice Core Methane Data for 420,000 Years --------------------------------------------------------------------- World Data Center for Paleoclimatology, Boulder and NOAA Paleoclimatology Program --------------------------------------------------------------------- NOTE: PLEASE CITE ORIGINAL REFERENCE WHEN USING THIS DATA!!!!! NAME OF DATA SET: Vostok Ice Core Methane Data for 420,000 Years LAST UPDATE: 11/2001 (Original Receipt by WDC Paleo). CONTRIBUTOR: Jean Robert Petit, LGGE-CNRS. IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2001-076 SUGGESTED DATA CITATION: Petit, J.R., et al., 2001, Vostok Ice Core Data for 420,000 Years, IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series #2001-076. NOAA/NGDC Paleoclimatology Program, Boulder CO, USA. ORIGINAL REFERENCE: Petit J.R., Jouzel J., Raynaud D., Barkov N.I., Barnola J.M., Basile I., Bender M., Chappellaz J., Davis J., Delaygue G., Delmotte M., Kotlyakov V.M., Legrand M., Lipenkov V., Lorius C., Pépin L., Ritz C., Saltzman E., Stievenard M., 1999, Climate and Atmospheric History of the Past 420,000 years from the Vostok Ice Core, Antarctica, Nature, 399, pp.429-436. ADDITIONAL REFERENCES: Barnola, J.M., Raynaud, D., Korotkevich, Y.S. & Lorius, C., 1987. Vostok ice core provides 160,000-year record of atmospheric CO2. Nature, 329, 408-414. Barnola, J.M., Pimienta, P., Raynaud, D. & Korotkevich, Y.S., 1991. CO2 climate relationship as deduced from the Vostok ice core: a re-examination based on new measurements and on a re-evaluation of the air dating. Tellus, 43B, 83-91. Chappellaz, J., Barnola, J.-M., Raynaud, D., Korotkevich, Y.S. & Lorius, C. 1990. Ice-core record of atmospheric methane over the past 160,000 years. Nature, 345, 127-131. Jouzel J., C. Lorius, J. R. Petit, C. Genthon, N. I. Barkov, V. M. Kotlyakov, and V. M. Petrov, 1987, Vostok ice core: a continuous isotope temperature record over the last climatic cycle (160,000 years), Nature, 329, 1987, 402-408. Jouzel J., N. I. Barkov, J. M. Barnola, M. Bender, J. Chappelaz, C. Genthon, V. M. Kotlyakov, V. Lipenkov, C. Lorius, J. R. Petit, D. Raynaud, G. Raisbeck, C. Ritz, T. Sowers, M. Stievenard, F. Yiou and P. Yiou, 1993, Extending the Vostok ice-core record of paleoclimate to the penultimate glacial period, Nature, 364, 1993, 407-412. Jouzel J., C. Waelbroeck, B. Malaizé, M. Bender, J. R. Petit, N. I. Barkov, J. M. Barnola, T. King, V. M. Kotlyakov, V. Lipenkov, C. Lorius, D. Raynaud, C. Ritz and T. Sowers, 1996,Climatic interpretation of the recently extended Vostok ice records, Clim.Dyn., 12, 513-521. Legrand M., C. Lorius, N;I. Barkov, V.N. Petrov, 1988, Vostok (Antarctica) ice core: atmospheric chemistry changes over the last climatic cycle (160,000 years), Atmos. Environ. 1988, 22, 317-331. Lorius C., J. Jouzel, C. Ritz, L. Merlivat, N. I. Barkov, Y. S. Korotkevitch, and V. M. Kotlyakov, 1985, A 150,000-year climatic record from Antarctic ice, Nature, 316, 591-596. Petit J.R., L. Mounier, J. Jouzel, Y. Korotkevitch, V. Kotlyakov and C. Lorius, 1990, Paleoclimatological implications of the Vostok core dust record, Nature, 343, 56-58. Sowers T. M. Bender, L. D. Labeyrie, J. Jouzel, D. Raynaud, D. Martinson, and Y. S. Korotkevich, 1993, 135,000 year Vostok - SPECMAP common temporal framework, Paleoceanography v.8, p. 737-766. GEOGRAPHIC REGION: Antarctica PERIOD OF RECORD: 0-422 KYrBP DESCRIPTION: Vostok Ice Core Methane Data for 420,000 Years CH4 data: file"ch4nat.txt" Column 1: Gas Age as deduced from the Barnola et al. (1991) model Column 2: CH4 concentration (ppbv). See note below Gas age CH4 (ppbv) 2347 668 3634 636 3833 595 6225 588 6614 574 8113 616 10189 667 11013 621 11143 511 11329 477 11719 501 12626 662 13412 610 13457 642 14241 445 16417 395 17695 363 18950 349 20004 379 21636 348 22977 406 23059 339 23392 371 23714 377 24146 403 24327 403 24643 340 24654 360 24662 381 24875 358 25073 392 25423 377 25440 381 25440 379 25684 360 25999 363 26099 382 26099 386 26336 387 26471 412 26672 426 26884 418 27064 448 27342 464 27702 435 27951 416 28016 403 28195 382 28551 396 28743 425 28943 435 29130 436 29410 421 29493 416 29542 429 30175 481 30385 489 30591 482 31088 394 31479 429 32176 469 32384 505 32715 548 32952 532 33161 520 33474 530 33823 509 34108 500 34108 483 34285 484 34644 418 34784 403 35038 459 35163 414 35387 375 35573 423 35645 443 35883 431 36641 484 38109 520 38201 493 39388 424 39828 448 40626 537 41358 522 42131 441 43546 419 44788 402 47024 466 49398 504 51174 480 52870 514 55564 528 57737 442 59604 411 61582 414 63694 415 65701 434 68495 424 71014 458 72849 430 75367 462 76875 402 78995 438 81122 497 82843 545 84929 594 86323 529 88051 425 89363 417 91691 454 93660 443 95349 406 96900 407 99067 476 99833 480 100842 521 101829 493 103372 559 105204 591 105675 564 106203 437 107007 451 108994 468 111442 448 112559 443 112793 463 113479 505 113574 483 114031 497 114508 511 115060 485 115401 503 115768 520 116037 550 116200 531 116353 548 116605 575 117052 541 117342 555 117446 572 117589 590 117964 560 118010 573 118205 575 118631 563 118853 559 119164 589 119273 573 119499 584 119704 591 120320 603 120571 601 120652 578 120765 606 121090 592 121561 598 121752 594 122020 618 122367 592 122528 594 122606 600 122968 598 123279 604 123445 601 123677 622 123815 602 123826 630 124077 618 124244 619 124597 610 125176 649 125354 645 125424 623 125468 677 125679 672 126093 633 126200 644 126343 644 126380 636 126652 632 127008 638 127214 655 127440 666 127526 683 127716 653 127890 687 128080 708 128364 710 128399 699 128576 700 128632 704 128812 676 129062 552 129125 565 129348 540 129675 560 129898 524 130172 542 130549 492 131146 477 131195 491 131795 453 133340 431 134211 399 135003 352 135683 357 136367 374 136659 377 137393 348 137686 339 138408 318 140072 319 141422 345 143980 355 146784 356 148566 400 149406 418 150303 410 150633 376 151441 395 152562 445 153173 414 154129 382 155299 377 155706 406 157299 403 157806 381 159791 376 162996 405 165278 420 169266 478 172596 456 174189 402 175440 468 178550 503 180779 522 181718 464 183355 470 185063 510 187199 445 189335 440 191057 414 195625 460 199292 558 202212 612 204283 482 205148 425 205439 421 205715 413 206122 436 206675 466 207033 463 207418 455 207991 496 208183 475 208796 476 209078 485 209414 515 209975 473 210237 498 210830 567 211005 503 211481 509 211929 586 212281 551 212662 554 213010 545 213385 569 214153 581 214996 558 215504 568 215879 586 216310 544 216923 557 217253 541 217577 483 218342 440 218767 436 219680 476 220047 473 220760 498 220997 480 221612 482 222958 494 223446 532 224630 532 225136 512 225535 506 225888 497 226213 483 226726 484 227224 476 227840 445 230668 439 231383 460 231990 495 232615 502 233139 514 233646 541 234126 540 234470 550 234781 540 235222 554 236234 582 237466 619 237834 631 238199 650 238623 500 238943 554 239249 538 239545 522 240205 498 240576 484 240966 470 242067 509 243657 402 244198 437 244861 401 245481 380 246709 405 247436 399 248083 424 248977 447 249751 465 250460 467 251519 421 252183 410 252957 511 253889 486 255230 398 256038 408 256489 385 257245 402 258495 457 259226 445 259956 426 260759 448 261596 454 262388 448 263204 441 264042 442 264831 443 266485 417 267443 453 268273 429 268677 441 270677 484 273010 472 274443 508 275209 516 276867 522 277924 430 279541 430 282325 507 283491 464 286214 482 287852 522 288492 454 289444 433 290568 438 292472 475 293700 429 294611 468 295514 464 297181 460 298058 487 299016 486 299875 511 300639 545 301489 539 302452 603 303328 568 303951 588 304584 435 305303 443 306088 457 307124 478 308097 478 310035 488 310980 522 311769 570 312666 561 313510 589 314366 624 315139 620 315937 621 316674 639 317442 627 318261 637 318978 639 319871 636 320388 604 321383 604 322109 647 322618 665 322833 731 323488 773 324186 575 324991 581 325525 588 326236 558 327121 537 328084 517 329234 471 330204 451 332289 458 333600 371 335404 383 336967 342 338273 369 340163 422 341572 397 342993 442 344729 406 346095 384 347604 398 349160 391 350759 386 352406 392 354326 384 356202 399 356838 399 357728 396 359682 454 361167 422 362814 386 364471 397 366191 432 368105 463 369552 517 370919 405 373007 432 374567 482 378183 521 379625 445 381612 516 383527 542 384910 578 386543 567 388652 544 390567 439 392427 448 394620 478 396698 550 398575 574 400362 566 401860 598 404164 600 405823 672 407442 634 408995 644 410793 623 412182 626 414080 653 415452 678 417173 695