Years | |||
Before | Mauna | Law | |
Present | Loa | Dome | Vostok |
1 | 364 | -999 | -999 |
2 | 363 | -999 | -999 |
3 | 361 | -999 | -999 |
4 | 359 | -999 | -999 |
5 | 357 | -999 | -999 |
6 | 356 | -999 | -999 |
7 | 355 | -999 | -999 |
8 | 354 | -999 | -999 |
9 | 353 | -999 | -999 |
10 | 351 | -999 | -999 |
11 | 349 | -999 | -999 |
12 | 347 | -999 | -999 |
13 | 346 | -999 | -999 |
14 | 344 | -999 | -999 |
15 | 343 | -999 | -999 |
16 | 341 | -999 | -999 |
17 | 340 | -999 | -999 |
18 | 339 | -999 | -999 |
19 | 337 | -999 | -999 |
20 | 335 | -999 | -999 |
20 | -999 | 335 | -999 |
20 | -999 | 332 | -999 |
21 | 334 | -999 | -999 |
22 | 332 | -999 | -999 |
23 | 331 | -999 | -999 |
23 | -999 | 331 | -999 |
24 | 330 | -999 | -999 |
25 | 330 | -999 | -999 |
25 | -999 | 328 | -999 |
26 | 327 | -999 | -999 |
27 | 326 | -999 | -999 |
27 | -999 | 324 | -999 |
28 | 326 | -999 | -999 |
28 | -999 | 325 | -999 |
28 | -999 | 325 | -999 |
29 | 324 | -999 | -999 |
29 | -999 | 323 | -999 |
30 | 323 | -999 | -999 |
30 | -999 | 324 | -999 |
31 | 322 | -999 | -999 |
32 | 321 | -999 | -999 |
33 | 320 | -999 | -999 |
33 | -999 | 320 | -999 |
33 | -999 | 319 | -999 |
34 | 319 | -999 | -999 |
35 | 319 | -999 | -999 |
35 | -999 | 318 | -999 |
36 | 318 | -999 | -999 |
36 | -999 | 319 | -999 |
36 | -999 | 317 | -999 |
36 | -999 | 319 | -999 |
36 | -999 | 317 | -999 |
37 | 317 | -999 | -999 |
38 | 317 | -999 | -999 |
39 | 316 | -999 | -999 |
39 | -999 | 316 | -999 |
40 | 315 | -999 | -999 |
44 | -999 | 314 | -999 |
44 | -999 | 315 | -999 |
44 | -999 | 314 | -999 |
45 | -999 | -999 | -999 |
45 | -999 | 312 | -999 |
45 | -999 | 311 | -999 |
45 | -999 | 313 | -999 |
50 | -999 | 310 | -999 |
50 | -999 | 311 | -999 |
54 | -999 | 310 | -999 |
55 | -999 | -999 | -999 |
58 | -999 | 311 | -999 |
59 | -999 | 311 | -999 |
59 | -999 | 309 | -999 |
60 | -999 | 311 | -999 |
62 | -999 | 308 | -999 |
63 | -999 | -999 | -999 |
64 | -999 | 309 | -999 |
66 | -999 | 308 | -999 |
69 | -999 | 305 | -999 |
71 | -999 | -999 | -999 |
72 | -999 | 305 | -999 |
74 | -999 | 305 | -999 |
74 | -999 | 304 | -999 |
77 | -999 | -999 | -999 |
83 | -999 | -999 | -999 |
83 | -999 | 301 | -999 |
86 | -999 | 301 | -999 |
89 | -999 | -999 | -999 |
93 | -999 | -999 | -999 |
93 | -999 | 297 | -999 |
93 | -999 | 299 | -999 |
93 | -999 | 299 | -999 |
95 | -999 | -999 | -999 |
99 | -999 | -999 | -999 |
99 | -999 | 297 | -999 |
100 | -999 | 295 | -999 |
106 | -999 | 295 | -999 |
107 | -999 | 295 | -999 |
111 | -999 | -999 | -999 |
112 | -999 | 294 | -999 |
116 | -999 | 292 | -999 |
120 | -999 | -999 | -999 |
121 | -999 | 289 | -999 |
124 | -999 | -999 | -999 |
129 | -999 | -999 | -999 |
129 | -999 | 287 | -999 |
137 | -999 | 287 | -999 |
144 | -999 | -999 | -999 |
144 | -999 | 285 | -999 |
148 | -999 | 285 | -999 |
153 | -999 | 286 | -999 |
158 | -999 | 283 | -999 |
166 | -999 | 285 | -999 |
173 | -999 | 285 | -999 |
202 | -999 | 284 | -999 |
204 | -999 | 282 | -999 |
221 | -999 | 280 | -999 |
238 | -999 | 277 | -999 |
249 | -999 | 277 | -999 |
251 | -999 | 277 | -999 |
278 | -999 | 278 | -999 |
306 | -999 | 277 | -999 |
319 | -999 | 276 | -999 |
351 | -999 | 277 | -999 |
394 | -999 | 274 | -999 |
409 | -999 | 279 | -999 |
428 | -999 | 282 | -999 |
451 | -999 | 283 | -999 |
471 | -999 | 283 | -999 |
499 | -999 | 282 | -999 |
533 | -999 | 280 | -999 |
552 | -999 | 282 | -999 |
611 | -999 | 280 | -999 |
611 | -999 | 280 | -999 |
671 | -999 | 283 | -999 |
752 | -999 | 282 | -999 |
802 | -999 | 284 | -999 |
852 | -999 | 284 | -999 |
902 | -999 | 282 | -999 |
952 | -999 | 280 | -999 |
992 | -999 | 279 | -999 |
1705 | -999 | -999 | 275 |
3535 | -999 | -999 | 270 |
6805 | -999 | -999 | 252 |
7505 | -999 | -999 | 257 |
9145 | -999 | -999 | 259 |
* missing data = -999
** some years have multiple CO2 values
Source of Mauna Loa data:
Keeling, C.D. and Whorf, T.P. 1998. Atmospheric CO2 concentrations -- Mauna Loa Observatory, Hawaii, 1958-1997 (revised August 1998). NDP-001. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, Oak Ridge, Tennessee.
Source of Law Dome data:
Etheridge, D.M., Steele, L.P., Langenfelds, R.L., Francey, R.J., Barnola, J.-M. and Morgan V.I. 1998. Historical CO2 records from the Law Dome DE08, DE08-2, and DSS ice cores. In Trends: A Compendium of Data on Global Change. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, Oak Ridge, Tenn., U.S.A.
Source of Vostok data:
Boden, T.A., Kaiser, D.P., Sepanski, R.J. and Stoss, F.W. (Eds.). 1994.
Trends '93: A Compendium of Data on Global Change. ORNL/CDIAC-65.
Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, Oak Ridge, Tennessee.