/* DATA DESCRIPTION:
Citation:	Petit, Jean-Robert (2005): Methane and carbon dioxide measured on the Vostok ice core. doi:10.1594/PANGAEA.55501
Reference(s):	Petit, Jean-Robert; Jouzel, Jean; Raynaud, Dominique; Barkov, N I; Barnola, Jean-Marc; Basile, I; Bender, Michael L; Chappellaz, Jérôme A; Davis, JC; Delaygue, G; Delmotte, M; Kotlyakov, Vladimir; Legrand, M R; Lipenkov, Vladimir Y; Lorius, C; Pepin, L; Ritz, Catherine; Saltzman, Eric S; Stiévenard, Michel (1999): Climate and atmospheric history of the past 420,000 years from the Vostok ice core, Antarctica. Nature, 399(6735), 429-436, doi:10.1038/20859
Coverage:	WEST: 106.8000 * EAST: 106.8000 * SOUTH: -78.4667 * NORTH: -78.4667
	MINIMUM AGE: 2.342 ka BP * MAXIMUM AGE: 417.173 ka BP
	DATE/TIME START: 1980-01-01T00:00:00 * DATE/TIME END: 1980-01-01T00:00:00
Event(s):	Vostok * LATITUDE: -78.4667 * LONGITUDE: 106.8000 * DATE/TIME: 1980-01-01T00:00:00 * RECOVERY: 2500.00 m * LOCATION: Antarctica * CAMPAIGN: Ice_core_diverse * BASIS: Sampling/drilling ice * DEVICE: Drilling
Comment:	CO2 and CH4 measurements have been performed using the methods and analytical procedures previously described (Barnola et al., 1987, Chappellaz et al, 1990). However, the CO2 measuring system has been slightly modified in order to increase the sensitivity of the CO2 detection. The thermal conductivity chromatographic detector has been replaced by a flame ionisation detector which measures CO2 after its transformation into CH4. The overall accuracy for CH4 and CO2 measurements are ± 20 ppbv and 2-3 ppmv respectively. No gravitational correction has been applied.
Parameter(s):	AGE [ka BP] (Age) * Geocode
	Methane [ppbv] (CH4) * PI: Petit, Jean-Robert (eMail: petit@glaciog.ujf-grenoble.fr) * METHOD: see comment
	Carbon dioxide [ppmv] (CO2) * PI: Petit, Jean-Robert (eMail: petit@glaciog.ujf-grenoble.fr) * METHOD: see comment
Size:	740 data points
*/
Age [ka BP]	CH4 [ppbv]	CO2 [ppmv]
2.34200		284.7
2.34700	668	
3.63400	636	272.8
3.833 595 268.1
6.220 0 262.2
6.225 588 0.0
6.614 574 0.0
7.327 0 254.6
8.113 616 259.6
10.123 0 261.6
10.189 667 0.0
11.013 621 263.7
11.143 511 0.0
11.326 0 244.8
11.329 477 0.0
11.719 501 238.3
12.626 662 0.0
13.405 0 236.2
13.412 610 0.0
13.457 642 0.0
13.989 0 225.3
14.241 445 0.0
16.417 395 0.0
17.695 363 182.2
18.950 349 0.0
19.988 0 189.2
20.004 379 0.0
21.636 348 0.0
22.977 406 191.6
23.059 339 0.0
23.392 371 0.0
23.714 377 0.0
24.146 403 0.0
24.327 403 0.0
24.643 340 0.0
24.654 360 0.0
24.662 381 0.0
24.875 358 0.0
25.073 392 0.0
25.423 377 0.0
25.440 381 0.0
25.440 379 0.0
25.684 360 0.0
25.999 363 0.0
26.099 382 0.0
26.099 386 0.0
26.303 0 188.5
26.336 387 0.0
26.471 412 0.0
26.672 426 0.0
26.884 418 0.0
27.062 0 191.7
27.064 448 0.0
27.342 464 0.0
27.702 435 0.0
27.951 416 0.0
28.016 403 0.0
28.195 382 0.0
28.551 396 0.0
28.743 425 0.0
28.943 435 0.0
29.130 436 0.0
29.410 421 0.0
29.493 416 0.0
29.542 429 0.0
30.175 481 0.0
30.385 489 0.0
30.591 482 0.0
31.088 394 0.0
31.447 0 205.4
31.479 429 0.0
32.176 469 0.0
32.384 505 0.0
32.715 548 0.0
32.952 532 0.0
33.161 520 0.0
33.474 530 0.0
33.823 509 0.0
33.884 0 209.1
34.108 500 0.0
34.108 483 0.0
34.285 484 0.0
34.644 418 0.0
34.784 403 0.0
35.038 459 0.0
35.163 414 0.0
35.387 375 0.0
35.573 423 0.0
35.645 443 0.0
35.883 431 0.0
36.641 484 0.0
38.109 520 0.0
38.201 493 0.0
39.388 424 0.0
39.828 448 0.0
39.880 0 209.1
40.626 537 0.0
41.358 522 0.0
42.131 441 0.0
43.546 419 0.0
44.766 0 189.3
44.788 402 0.0
47.024 466 188.4
48.229 0 210.1
49.398 504 0.0
49.414 0 215.7
51.174 480 190.4
52.870 514 0.0
55.564 528 0.0
57.068 0 221.8
57.737 442 0.0
57.799 0 210.4
59.604 411 0.0
61.582 414 0.0
63.687 0 195.4
63.694 415 0.0
65.701 434 191.4
66.883 0 195.0
68.495 424 0.0
71.014 458 0.0
72.849 430 227.4
75.360 0 229.2
75.367 462 0.0
76.875 402 0.0
78.995 438 217.1
80.059 0 221.8
81.122 497 0.0
82.843 545 0.0
82.858 0 231.0
84.929 594 241.1
85.727 0 236.4
86.323 529 228.1
87.180 0 214.2
88.051 425 217.0
89.363 417 208.0
91.691 454 224.3
92.460 0 228.4
93.660 443 0.0
95.349 406 232.1
96.900 407 0.0
99.067 476 0.0
99.833 480 0.0
99.842 0 225.9
100.833 0 230.9
100.842 521 0.0
101.829 493 236.9
103.372 559 228.2
105.204 591 0.0
105.213 0 236.9
105.675 564 0.0
106.203 437 230.7
107.007 451 0.0
108.308 0 238.2
108.994 468 245.7
110.253 0 251.3
111.442 448 0.0
111.456 0 256.8
112.559 443 0.0
112.577 0 266.3
112.793 463 0.0
113.472 0 261.4
113.479 505 0.0
113.574 483 0.0
114.031 497 0.0
114.082 0 274.6
114.508 511 0.0
114.738 0 273.3
115.060 485 0.0
115.401 503 0.0
115.768 520 0.0
116.037 550 0.0
116.175 0 262.5
116.200 531 0.0
116.353 548 0.0
116.605 575 0.0
117.052 541 0.0
117.342 555 0.0
117.446 572 0.0
117.519 0 267.6
117.589 590 0.0
117.964 560 0.0
118.010 573 0.0
118.205 575 0.0
118.396 0 273.8
118.631 563 0.0
118.853 559 0.0
119.164 589 0.0
119.273 573 272.0
119.499 584 0.0
119.704 591 0.0
120.002 0 265.2
120.320 603 0.0
120.571 601 0.0
120.652 578 277.7
120.765 606 0.0
121.090 592 0.0
121.561 598 0.0
121.752 594 0.0
121.961 0 272.2
122.020 618 0.0
122.367 592 0.0
122.528 594 0.0
122.606 600 276.5
122.968 598 0.0
123.279 604 0.0
123.445 601 0.0
123.677 622 0.0
123.815 602 268.7
123.826 630 0.0
123.858 0 266.6
124.077 618 0.0
124.244 619 0.0
124.306 0 266.3
124.571 0 279.8
124.597 610 0.0
124.876 0 277.2
125.176 649 0.0
125.354 645 0.0
125.424 623 0.0
125.468 677 0.0
125.679 672 0.0
125.746 0 273.8
126.023 0 267.1
126.093 633 0.0
126.200 644 0.0
126.343 644 0.0
126.380 636 0.0
126.475 0 262.5
126.652 632 0.0
126.809 0 262.6
127.008 638 0.0
127.214 655 0.0
127.440 666 0.0
127.445 0 275.4
127.526 683 0.0
127.716 653 0.0
127.890 687 0.0
128.080 708 0.0
128.300 0 274.1
128.364 710 0.0
128.399 699 287.1
128.576 700 0.0
128.632 704 0.0
128.652 0 286.8
128.812 676 0.0
129.007 0 282.7
129.062 552 0.0
129.125 565 0.0
129.348 540 0.0
129.411 0 264.1
129.675 560 0.0
129.755 0 263.4
129.898 524 0.0
130.167 0 259.0
130.172 542 0.0
130.549 492 0.0
131.146 477 0.0
131.195 491 0.0
131.789 0 240.4
131.795 453 0.0
133.334 0 224.0
133.340 431 0.0
134.205 0 208.9
134.211 399 0.0
135.003 352 204.6
135.683 357 198.1
135.976 0 201.8
136.359 0 202.5
136.367 374 0.0
136.659 377 195.9
137.383 0 194.4
137.393 348 0.0
137.686 339 0.0
137.694 0 193.4
138.226 0 190.2
138.408 318 0.0
139.445 0 192.3
140.072 319 0.0
141.312 0 196.5
141.422 345 0.0
142.357 0 190.4
143.980 355 0.0
145.435 0 197.0
146.784 356 0.0
148.566 400 0.0
149.406 418 0.0
150.303 410 191.9
150.633 376 0.0
151.441 395 0.0
152.562 445 0.0
153.173 414 0.0
154.129 382 0.0
154.471 0 189.0
155.299 377 185.5
155.706 406 0.0
157.299 403 0.0
157.806 381 0.0
159.791 376 0.0
160.494 0 204.4
162.996 405 191.6
165.278 420 183.8
169.266 478 0.0
169.870 0 197.9
172.596 456 197.8
174.189 402 0.0
175.440 468 190.3
176.271 0 190.1
178.550 503 207.7
180.779 522 213.2
181.617 0 217.7
181.718 464 0.0
183.355 470 199.8
185.063 510 203.5
187.199 445 210.7
189.335 440 231.4
191.057 414 231.5
192.632 0 218.0
195.625 460 220.1
199.025 0 242.6
199.292 558 0.0
202.212 612 251.0
203.191 0 239.1
204.283 482 247.7
205.148 425 244.4
205.439 421 0.0
205.715 413 232.2
206.119 0 228.7
206.122 436 0.0
206.675 466 0.0
207.033 463 0.0
207.418 455 0.0
207.991 496 238.2
208.183 475 0.0
208.796 476 0.0
209.078 485 0.0
209.414 515 242.2
209.975 473 0.0
210.022 0 244.6
210.237 498 0.0
210.830 567 247.3
211.005 503 252.0
211.481 509 0.0
211.929 586 0.0
212.281 551 257.4
212.662 554 0.0
213.010 545 0.0
213.385 569 0.0
214.153 581 251.2
214.996 558 0.0
215.041 0 241.4
215.504 568 0.0
215.593 0 240.3
215.879 586 242.7
216.310 544 0.0
216.459 0 247.5
216.923 557 0.0
217.009 0 251.7
217.253 541 0.0
217.271 0 251.2
217.577 483 0.0
217.676 0 245.4
218.342 440 240.5
218.767 436 0.0
219.680 476 212.2
220.047 473 0.0
220.182 0 216.2
220.760 498 207.2
220.997 480 0.0
221.054 0 208.9
221.612 482 205.7
222.958 494 203.4
223.446 532 215.7
224.630 532 236.9
225.136 512 0.0
225.299 0 234.5
225.509 0 233.1
225.535 506 0.0
225.888 497 224.5
226.213 483 0.0
226.710 0 232.4
226.726 484 0.0
227.224 476 0.0
227.384 0 233.9
227.840 445 241.7
230.668 439 0.0
230.703 0 245.2
231.382 0 252.2
231.383 460 0.0
231.990 495 241.4
232.570 0 247.4
232.615 502 0.0
233.102 0 243.1
233.139 514 0.0
233.646 541 239.2
234.126 540 245.7
234.470 550 245.9
234.781 540 247.4
235.213 0 252.9
235.222 554 0.0
236.234 582 0.0
236.236 0 259.8
237.466 619 0.0
237.831 0 279.0
237.834 631 0.0
238.199 650 0.0
238.623 500 0.0
238.935 0 263.8
238.943 554 0.0
239.249 538 0.0
239.250 0 252.4
239.545 522 249.9
240.201 0 230.4
240.205 498 0.0
240.576 484 0.0
240.577 0 219.4
240.966 470 0.0
242.067 509 0.0
242.068 0 214.7
243.653 0 200.2
243.657 402 0.0
244.198 437 0.0
244.215 0 213.9
244.861 401 0.0
244.863 0 195.4
245.481 380 0.0
245.483 0 196.7
246.709 405 0.0
247.436 399 0.0
247.447 0 199.0
248.083 424 0.0
248.087 0 201.9
248.977 447 0.0
248.980 0 204.0
249.751 465 0.0
250.460 467 0.0
250.461 0 203.9
251.519 421 0.0
251.521 0 209.7
252.183 410 0.0
252.957 511 0.0
252.959 0 208.9
253.880 0 214.7
253.889 486 0.0
255.230 398 0.0
255.233 0 228.2
256.038 408 0.0
256.053 0 199.9
256.489 385 0.0
256.501 0 211.7
257.245 402 0.0
257.247 0 188.7
258.477 0 194.2
258.495 457 0.0
259.226 445 0.0
259.228 0 198.9
259.956 426 0.0
259.958 0 184.7
260.754 0 190.4
260.759 448 0.0
261.595 0 193.9
261.596 454 0.0
262.388 448 0.0
262.411 0 194.2
263.204 441 0.0
263.207 0 198.4
264.042 442 0.0
264.046 0 193.2
264.831 443 0.0
264.834 0 202.2
266.485 417 0.0
266.492 0 211.0
267.434 0 215.4
267.443 453 0.0
268.273 429 0.0
268.677 441 0.0
268.679 0 223.7
270.677 484 0.0
270.680 0 231.4
273.010 472 0.0
273.012 0 226.4
274.443 508 0.0
274.445 0 230.4
275.209 516 0.0
275.218 0 231.0
276.867 522 0.0
277.924 430 0.0
277.925 0 220.4
278.602 0 217.2
279.541 430 0.0
279.543 0 207.7
282.301 0 212.7
282.325 507 0.0
283.491 464 0.0
283.492 0 213.2
286.214 482 0.0
286.217 0 224.4
287.846 0 236.2
287.852 522 0.0
288.492 454 0.0
289.444 433 0.0
290.568 438 0.0
290.571 0 240.2
291.769 0 240.7
292.472 475 0.0
292.474 0 250.2
293.676 0 244.9
293.700 429 0.0
294.611 468 0.0
294.615 0 225.9
295.514 464 0.0
295.849 0 227.9
297.131 0 233.2
297.181 460 0.0
298.051 0 237.9
298.058 487 0.0
299.016 486 0.0
299.020 0 239.0
299.875 511 0.0
299.877 0 241.9
300.639 545 0.0
300.646 0 251.7
301.489 539 0.0
301.496 0 256.8
302.452 603 0.0
302.456 0 257.2
303.328 568 0.0
303.334 0 246.9
303.951 588 0.0
303.953 0 272.7
304.584 435 0.0
304.590 0 251.7
305.303 443 0.0
305.306 0 244.7
306.088 457 0.0
307.124 478 0.0
307.131 0 255.9
308.097 478 0.0
308.101 0 249.2
310.035 488 0.0
310.039 0 256.3
310.930 0 260.4
310.980 522 0.0
311.769 570 0.0
311.774 0 260.3
312.666 561 0.0
313.493 0 266.3
313.510 589 0.0
314.366 624 0.0
315.139 620 0.0
315.143 0 266.2
315.937 621 0.0
315.940 0 270.2
316.674 639 0.0
316.681 0 271.9
317.442 627 0.0
317.445 0 275.2
318.261 637 0.0
318.978 639 0.0
318.980 0 265.0
319.754 0 271.8
319.871 636 0.0
320.378 0 272.7
320.388 604 0.0
321.383 604 0.0
321.386 0 273.2
322.109 647 0.0
322.111 0 282.4
322.582 0 289.2
322.618 665 0.0
322.827 0 288.4
322.833 731 0.0
323.485 0 298.7
323.488 773 0.0
324.186 575 0.0
324.189 0 278.2
324.991 581 285.8
325.525 588 0.0
325.527 0 278.7
326.236 558 0.0
326.239 0 270.5
327.114 0 255.7
327.121 537 0.0
328.084 517 0.0
328.097 0 241.9
329.234 471 0.0
329.267 0 239.7
330.204 451 0.0
330.208 0 234.2
332.289 458 0.0
332.293 0 250.2
333.600 371 0.0
333.627 0 200.7
335.290 0 205.2
335.404 383 0.0
336.967 342 0.0
336.972 0 204.9
338.273 369 0.0
340.163 422 0.0
340.165 0 220.4
341.572 397 0.0
342.993 442 0.0
342.998 0 221.2
344.729 406 0.0
344.735 0 216.2
346.095 384 0.0
347.604 398 0.0
347.610 0 209.2
349.160 391 0.0
350.759 386 0.0
350.765 0 193.0
352.406 392 0.0
352.412 0 186.2
354.326 384 0.0
356.202 399 0.0
356.838 399 201.2
357.728 396 0.0
359.682 454 0.0
359.688 0 206.4
361.167 422 0.0
362.766 0 201.9
362.814 386 0.0
364.471 397 0.0
366.191 432 0.0
366.221 0 214.7
368.105 463 0.0
369.552 517 0.0
369.563 0 229.7
370.919 405 0.0
373.007 432 0.0
373.014 0 227.0
374.561 0 240.0
374.567 482 0.0
378.183 521 0.0
378.194 0 246.9
379.625 445 0.0
379.633 0 245.9
381.612 516 0.0
383.527 542 0.0
384.909 0 264.7
384.910 578 0.0
386.543 567 0.0
386.579 0 259.3
388.652 544 0.0
390.567 439 0.0
390.589 0 255.2
392.427 448 0.0
392.451 0 250.2
394.620 478 0.0
394.628 0 266.3
396.698 550 0.0
396.713 0 274.7
398.575 574 0.0
400.362 566 0.0
400.390 0 278.0
401.860 598 0.0
404.164 600 0.0
405.823 672 0.0
405.844 0 279.7
407.442 634 0.0
408.995 644 0.0
409.022 0 283.7
410.793 623 0.0
410.831 0 276.3
412.182 626 0.0
414.080 653 0.0
414.085 0 285.5
415.452 678 0.0
417.173 695 0.0