EPICA Dome C Ice Cores Deuterium Data RTP: Split into two parts to make it easier to read into software This is Part 2 ----------------------------------------------------------------------- World Data Center for Paleoclimatology, Boulder and NOAA Paleoclimatology Program ----------------------------------------------------------------------- NOTE: PLEASE CITE CONTRIBUTORS WHEN USING THIS DATA!!!!! NAME OF DATA SET: EPICA Dome C Ice Cores Deuterium Data LAST UPDATE: 7/2004 (Original receipt by WDC Paleo) CONTRIBUTOR: Jean Jouzel, Institut Pierre Simon Laplace/ Laboratoire des Sciences du Climat et de l'Environnement, UMR CEA-CNRS 1572, CE Saclay, Orme des Merisiers, 91191Gif-Sur-Yvette, France. IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2004-038 SUGGESTED DATA CITATION: Jouzel, J., et al. 2004. EPICA Dome C Ice Cores Deuterium Data. IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series # 2004-038. NOAA/NGDC Paleoclimatology Program, Boulder CO, USA. ORIGINAL REFERENCE: EPICA community members. 2004. Eight glacial cycles from an Antarctic ice core. Nature, Vol. 429, No 6992, pp.623-628, June 10, 2004. doi:10.1038/nature02599. ABSTRACT: The Antarctic Vostok ice core provided compelling evidence of the nature of climate, and of climate feedbacks, over the past 420,000 years. Marine records suggest that the amplitude of climate variability was smaller before that time, but such records are often poorly resolved. Moreover, it is not possible to infer the abundance of greenhouse gases in the atmosphere from marine records. Here we report the recovery of a deepice core from Dome C, Antarctica, that provides a climate record for the past 740,000 years. For the four most recent glacial cycles, the data agree well with the record from Vostok. The earlier period, between 740,000 and 430,000 years ago, was characterized by less pronounced warmth in interglacial periods in Antarctica, but a higher proportion of each cycle was spent in the warm mode. The transition from glacial to interglacial conditions about 430,000 years ago (Termination V) resembles the transition into the present interglacial period in terms of the magnitude of change in temperatures and greenhouse gases, but there are significant differences in the patterns of change. The interglacial stage following Termination V was exceptionally long-28,000 years compared to, for example, the 12,000 years recorded so far in the present interglacial period. Given the similarities between this earlier warm period and today, our results may imply that without human intervention, a climate similar to the present one would extend well into the future. GEOGRAPHIC REGION: Antarctica PERIOD OF RECORD: 0 - 741 kyr BP DESCRIPTION: Deuterium data from EPICA Dome C ice cores, 6.6-3140.5 metres, also presented as 3 kyr averages, 0-741 kyr. dD was determined on meltwater from 55 cm long sections. The current dataset was derived using a "quick" mode (each sample is measured twice instead of four times), leading to a typical accuracy of 1.5‰, whereas we aim for a final precision of 0.5‰ over the entire core. The data here correspond to values averaged across seven successive samples (depth scale) or averaged across 3000 year intervals. Ages are given on timescale EDC2 (EPICA Community Members, Eight glacial cycles from an Antarctic ice core, Nature, 429 (6992), 623-628, 2004). 2. Deuterium data from EPICA Dome C ice cores, 3 kyr averages, 0-741 kyr. Col 1: Age (years before 1950 on EDC2 timescale) at top of averaging interval Col 2: Age (years before 1950 on EDC2 timescale) at bottom of averaging interval Col 3: dD, mean3K/permill agetop agebot deltaD 0 3000 -397.03 3000 6000 -395.69 6000 9000 -399 9000 12000 -393.18 12000 15000 -407.99 15000 18000 -419.02 18000 21000 -440.73 21000 24000 -441.82 24000 27000 -442.98 27000 30000 -441.1 30000 33000 -439.7 33000 36000 -437.71 36000 39000 -431.5 39000 42000 -437.07 42000 45000 -434.2 45000 48000 -427.44 48000 51000 -431.38 51000 54000 -425.57 54000 57000 -427.85 57000 60000 -425.12 60000 63000 -437.29 63000 66000 -441.33 66000 69000 -435.79 69000 72000 -430.12 72000 75000 -426.13 75000 78000 -425.33 78000 81000 -416.35 81000 84000 -415.52 84000 87000 -426.57 87000 90000 -424.07 90000 93000 -420.52 93000 96000 -420.28 96000 99000 -419.15 99000 102000 -423.39 102000 105000 -418.86 105000 108000 -426.93 108000 111000 -423.3 111000 114000 -410.35 114000 117000 -395.23 117000 120000 -388.06 120000 123000 -385.26 123000 126000 -383.26 126000 129000 -372.22 129000 132000 -399.63 132000 135000 -427.23 135000 138000 -437.33 138000 141000 -438.65 141000 144000 -436.41 144000 147000 -433.96 147000 150000 -431.95 150000 153000 -434.45 153000 156000 -440.49 156000 159000 -432.39 159000 162000 -430.77 162000 165000 -437.8 165000 168000 -429.45 168000 171000 -431.58 171000 174000 -434.42 174000 177000 -431.42 177000 180000 -436.42 180000 183000 -441.22 183000 186000 -435.71 186000 189000 -424.32 189000 192000 -427.66 192000 195000 -420.95 195000 198000 -408.09 198000 201000 -409.72 201000 204000 -419.28 204000 207000 -409.77 207000 210000 -402.57 210000 213000 -405.14 213000 216000 -403.81 216000 219000 -419.63 219000 222000 -434.43 222000 225000 -438.2 225000 228000 -430.22 228000 231000 -431.84 231000 234000 -425.27 234000 237000 -412.52 237000 240000 -406.33 240000 243000 -387.86 243000 246000 -400.19 246000 249000 -424.54 249000 252000 -431.77 252000 255000 -434.65 255000 258000 -432.08 258000 261000 -431.23 261000 264000 -431.18 264000 267000 -429.72 267000 270000 -437.32 270000 273000 -441.52 273000 276000 -440 276000 279000 -439.47 279000 282000 -432.61 282000 285000 -428.46 285000 288000 -422.06 288000 291000 -415.9 291000 294000 -426.84 294000 297000 -428.82 297000 300000 -430.59 300000 303000 -428.1 303000 306000 -421.7 306000 309000 -429.6 309000 312000 -428.42 312000 315000 -419.53 315000 318000 -411.74 318000 321000 -421.02 321000 324000 -412.33 324000 327000 -398.98 327000 330000 -393.91 330000 333000 -391.95 333000 336000 -374.97 336000 339000 -393.14 339000 342000 -420.99 342000 345000 -441.81 345000 348000 -439.39 348000 351000 -433.41 351000 354000 -433.38 354000 357000 -439.54 357000 360000 -441.07 360000 363000 -437.59 363000 366000 -432.59 366000 369000 -432.07 369000 372000 -429.35 372000 375000 -425.54 375000 378000 -431.08 378000 381000 -424.14 381000 384000 -419.6 384000 387000 -417.18 387000 390000 -425.34 390000 393000 -417.38 393000 396000 -402.18 396000 399000 -395.52 399000 402000 -389.11 402000 405000 -384.64 405000 408000 -383.11 408000 411000 -386.4 411000 414000 -391.47 414000 417000 -393.32 417000 420000 -398.91 420000 423000 -399.54 423000 426000 -415.87 426000 429000 -439.17 429000 432000 -442.32 432000 435000 -442.82 435000 438000 -438.05 438000 441000 -432.71 441000 444000 -433.12 444000 447000 -430.15 447000 450000 -437.31 450000 453000 -433.75 453000 456000 -436.45 456000 459000 -422.69 459000 462000 -422.58 462000 465000 -419.64 465000 468000 -413.94 468000 471000 -409.66 471000 474000 -405.54 474000 477000 -410.38 477000 480000 -411.86 480000 483000 -415.23 483000 486000 -416.34 486000 489000 -418.29 489000 492000 -423.44 492000 495000 -423.08 495000 498000 -420.04 498000 501000 -416.25 501000 504000 -413.29 504000 507000 -414.52 507000 510000 -418.71 510000 513000 -418.47 513000 516000 -423.79 516000 519000 -432 519000 522000 -430.09 522000 525000 -432.04 525000 528000 -432.41 528000 531000 -435.98 531000 534000 -430.73 534000 537000 -424.86 537000 540000 -417.13 540000 543000 -417.28 543000 546000 -427.29 546000 549000 -423.2 549000 552000 -417.45 552000 555000 -410.69 555000 558000 -406.55 558000 561000 -403.15 561000 564000 -401.04 564000 567000 -401.03 567000 570000 -401.55 570000 573000 -401.98 573000 576000 -404.03 576000 579000 -403.61 579000 582000 -403.99 582000 585000 -399.23 585000 588000 -408.07 588000 591000 -426.71 591000 594000 -427.01 594000 597000 -422.76 597000 600000 -422.14 600000 603000 -418.99 603000 606000 -427.51 606000 609000 -420.25 609000 612000 -413.18 612000 615000 -403.05 615000 618000 -399.26 618000 621000 -403.24 621000 624000 -404.14 624000 627000 -421.29 627000 630000 -437.79 630000 633000 -438.91 633000 636000 -435.1 636000 639000 -431.22 639000 642000 -433.41 642000 645000 -429.85 645000 648000 -438.21 648000 651000 -438.1 651000 654000 -442.99 654000 657000 -433.31 657000 660000 -434.18 660000 663000 -427.92 663000 666000 -426.51 666000 669000 -423.41 669000 672000 -426.8 672000 675000 -419.29 675000 678000 -414.96 678000 681000 -411.51 681000 684000 -410.39 684000 687000 -406.06 687000 690000 -402.63 690000 693000 -403.21 693000 696000 -403.69 696000 699000 -407.32 699000 702000 -405.4 702000 705000 -409.81 705000 708000 -412.59 708000 711000 -413.46 711000 714000 -413.49 714000 717000 -421.77 717000 720000 -432.47 720000 723000 -429.39 723000 726000 -422.72 726000 729000 -421.36 729000 732000 -415.64 732000 735000 -413.4 735000 738000 -418.48 738000 741000 -433.13