/* DATA DESCRIPTION: Citation: Bolzan, J F; Strobel, M (1999): Oxygen isotope data from snowpit at GISP2 Site 57. PANGAEA, https://doi.org/10.1594/PANGAEA.55515 Related to: Bolzan, J F; Strobel, M (1994): Accumulation-rate variations around Summit, Greenland. Journal of Glaciology, 40(134), 56-66, https://doi.org/10.3189/S0022143000003798 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, https://store.pangaea.de/Projects/GRIP-GISP/grip-gisp.iso Project(s): Greenland Ice Core Projects (GRIP/GISP/NGRIP) (URI: https://en.wikipedia.org/wiki/Greenland_ice_core_project) Coverage: LATITUDE: 71.920600 * LONGITUDE: -35.959200 DATE/TIME START: 1987-05-01T00:00:00 * DATE/TIME END: 1987-05-01T00:00:00 MINIMUM DEPTH, ice/snow: 0.00 m * MAXIMUM DEPTH, ice/snow: 11.01 m Event(s): GISP2Site57 * LATITUDE: 71.920600 * LONGITUDE: -35.959200 * DATE/TIME: 1987-05-01T00:00:00 * ELEVATION: 3090.0 m * LOCATION: Greenland * CAMPAIGN: GISP * BASIS: Sampling/drilling ice * METHOD/DEVICE: Snow pit (SNOWPIT) Comment: Data from shallow cores recov. over a 150x150 km grid in central Greenland. Dating of samples based on seasonal variation in oxygen isotope stratigraphy, along with measurements of gross beta activity. Age based on spline interpolation. Parameter(s): DEPTH, ice/snow [m] (Depth ice/snow) * GEOCODE AGE [ka BP] (Age) * GEOCODE Age [a AD/CE] (Age) * PI: Bolzan, J F * METHOD/DEVICE: see comment Density, mass density [kg/m**3] (Density) * PI: Bolzan, J F δ18O, water [‰ SMOW] (δ18O H2O) * PI: Bolzan, J F Depth, reference [m] (Depth ref) * PI: Bolzan, J F * COMMENT: ice-equivalent depths at the top of the sample License: Creative Commons Attribution 3.0 Unported (CC-BY-3.0) (URI: https://creativecommons.org/licenses/by/3.0/) Size: 808 data points */ Depth ice/snow [m] Age [ka BP] Age [a AD/CE] Density [kg/m**3] δ18O H2O [‰ SMOW] Depth ref [m] 0.00 -0.037780 1987.78 279.07 -33.85 0.000 0.10 -0.037850 1987.85 320.38 -37.49 0.030 0.20 -0.037820 1987.82 349.76 -33.83 0.065 0.30 -0.037680 1987.68 391.07 -37.39 0.103 0.40 -0.037430 1987.43 369.04 -36.39 0.146 0.50 -0.037140 1987.14 339.66 -38.24 0.186 0.60 -0.036860 1986.86 320.38 -35.00 0.223 0.70 -0.036610 1986.61 300.19 -30.42 0.258 0.80 -0.036400 1986.40 304.78 -32.52 0.291 0.90 -0.036230 1986.23 341.50 -36.84 0.324 1.00 -0.036070 1986.07 383.72 -38.85 0.361 1.10 -0.035930 1985.93 457.16 -38.04 0.403 1.20 -0.035770 1985.77 369.04 -36.30 0.453 1.30 -0.035590 1985.59 291.01 -27.73 0.493 1.40 -0.035400 1985.40 353.43 -30.91 0.525 1.50 -0.035130 1985.13 373.63 -36.52 0.563 1.60 -0.034890 1984.89 351.59 -36.15 0.604 1.70 -0.034750 1984.75 359.86 -31.81 0.642 1.80 -0.034650 1984.65 391.07 -32.64 0.681 1.90 -0.034550 1984.55 335.07 -31.20 0.724 2.00 -0.034190 1984.19 337.82 -36.81 0.826 2.05 -0.034120 1984.12 339.66 -39.70 0.844 2.10 -0.034040 1984.04 376.38 -40.50 0.862 2.15 -0.033960 1983.96 403.92 -40.04 0.883 2.20 -0.033870 1983.87 385.56 -39.57 0.905 2.25 -0.033800 1983.80 372.71 -39.02 0.926 2.30 -0.033730 1983.73 370.87 -37.25 0.946 2.35 -0.033660 1983.66 359.86 -34.11 0.966 2.40 -0.033590 1983.59 343.33 -32.52 0.986 2.45 -0.033530 1983.53 345.17 -34.05 1.005 2.50 -0.033470 1983.47 385.56 -32.24 1.024 2.55 -0.033400 1983.40 403.92 -32.85 1.045 2.60 -0.033330 1983.33 402.08 -34.64 1.067 2.65 -0.033250 1983.25 402.08 -37.18 1.088 2.70 -0.033160 1983.16 403.92 -39.23 1.110 2.75 -0.033060 1983.06 402.08 -40.02 1.132 2.80 -0.032940 1982.94 405.76 -35.15 1.154 2.85 -0.032790 1982.79 405.76 -32.95 1.176 2.90 -0.032610 1982.61 405.76 -32.10 1.198 2.95 -0.032380 1982.38 407.59 -34.94 1.221 3.00 -0.032120 1982.12 414.94 -40.96 1.243 3.05 -0.031900 1981.90 413.10 -38.59 1.265 3.10 -0.031760 1981.76 398.41 -36.25 1.288 3.15 -0.031670 1981.67 374.54 -37.28 1.310 3.20 -0.031620 1981.62 376.38 -35.16 1.330 3.25 -0.031580 1981.58 374.54 -32.70 1.350 3.30 -0.031530 1981.53 405.76 -30.52 1.371 3.35 -0.031460 1981.46 403.92 -31.30 1.393 3.40 -0.031360 1981.36 405.76 -33.39 1.415 3.45 -0.031250 1981.25 405.75 -35.93 1.437 3.50 -0.031140 1981.14 403.92 -38.24 1.459 3.55 -0.031040 1981.04 405.76 -38.60 1.481 3.60 -0.030960 1980.96 405.59 -37.40 1.503 3.66 -0.030910 1980.91 405.59 -35.93 1.528 3.71 -0.030670 1980.67 400.25 -32.26 1.662 3.76 -0.030570 1980.57 400.25 -30.24 1.684 3.81 -0.030420 1980.42 402.08 -31.52 1.706 3.86 -0.030250 1980.25 409.43 -37.25 1.727 3.91 -0.030080 1980.08 407.59 -37.96 1.750 3.96 -0.029930 1979.93 409.43 -37.25 1.772 4.01 -0.029830 1979.83 407.59 -36.69 1.794 4.06 -0.029750 1979.75 407.59 -35.14 1.816 4.11 -0.029680 1979.68 409.43 -34.23 1.839 4.16 -0.029610 1979.61 407.59 -34.45 1.861 4.21 -0.029500 1979.50 409.43 -33.96 1.883 4.26 -0.029360 1979.36 407.59 -33.73 1.905 4.31 -0.029210 1979.21 427.79 -38.16 1.928 4.36 -0.029060 1979.06 427.79 -38.86 1.951 4.41 -0.028960 1978.96 427.79 -38.45 1.974 4.46 -0.028900 1978.90 427.79 -36.81 1.998 4.51 -0.028860 1978.86 433.30 -36.44 2.021 4.56 -0.028820 1978.82 435.13 -35.79 2.044 4.61 -0.028730 1978.73 407.59 -33.72 2.068 4.66 -0.028590 1978.59 385.56 -33.25 2.090 4.71 -0.028390 1978.39 400.25 -34.71 2.111 4.76 -0.028120 1978.12 398.41 -36.02 2.133 4.81 -0.027890 1977.89 400.25 -35.37 2.155 4.86 -0.027740 1977.74 475.52 -32.73 2.177 4.91 -0.027620 1977.62 528.77 -30.11 2.202 4.96 -0.027550 1977.55 528.77 -29.52 2.231 5.01 -0.027500 1977.50 528.77 -29.56 2.260 5.06 -0.027450 1977.45 528.77 -29.98 2.289 5.11 -0.027390 1977.39 528.77 -30.48 2.318 5.16 -0.027200 1977.20 411.27 -31.77 2.386 5.21 -0.027120 1977.12 409.43 -34.21 2.408 5.26 -0.027040 1977.04 403.92 -36.13 2.431 5.31 -0.026960 1976.96 420.45 -35.22 2.453 5.36 -0.026870 1976.87 447.98 -32.70 2.476 5.41 -0.026760 1976.76 446.15 -31.29 2.500 5.46 -0.026660 1976.66 447.98 -28.84 2.524 5.51 -0.026550 1976.55 446.15 -28.42 2.549 5.56 -0.026450 1976.45 442.48 -29.18 2.573 5.61 -0.026340 1976.34 442.48 -31.71 2.597 5.66 -0.026240 1976.24 442.48 -34.70 2.621 5.71 -0.026140 1976.14 442.48 -37.07 2.645 5.76 -0.026050 1976.05 444.31 -37.76 2.670 5.81 -0.025960 1975.96 440.64 -37.59 2.694 5.86 -0.025880 1975.88 442.68 -37.12 2.715 5.90 -0.025730 1975.73 440.64 -36.34 2.759 5.95 -0.025650 1975.65 449.82 -33.72 2.783 6.00 -0.025580 1975.58 460.83 -31.09 2.808 6.05 -0.025500 1975.50 462.68 -30.79 2.833 6.10 -0.025420 1975.42 460.83 -32.59 2.858 6.15 -0.025340 1975.34 459.00 -34.19 2.883 6.20 -0.025260 1975.26 447.98 -36.01 2.908 6.25 -0.025170 1975.17 446.15 -37.63 2.933 6.30 -0.025060 1975.06 447.98 -38.51 2.957 6.35 -0.024940 1974.94 447.98 -36.63 2.981 6.40 -0.024800 1974.80 446.15 -34.18 3.006 6.45 -0.024650 1974.65 457.16 -32.22 3.030 6.50 -0.024500 1974.50 460.84 -32.17 3.055 6.55 -0.024350 1974.35 460.83 -33.98 3.080 6.60 -0.024200 1974.20 473.69 -36.67 3.105 6.65 -0.024070 1974.07 471.85 -37.68 3.131 6.70 -0.023940 1973.94 471.85 -37.08 3.157 6.75 -0.023820 1973.82 473.69 -34.91 3.182 6.80 -0.023700 1973.70 471.85 -33.11 3.208 6.85 -0.023570 1973.57 473.69 -32.33 3.234 6.90 -0.023420 1973.42 481.44 -33.82 3.260 6.94 -0.023280 1973.28 482.87 -33.61 3.283 7.00 -0.022900 1972.90 451.65 -33.89 3.350 7.04 -0.022790 1972.79 451.66 -33.07 3.374 7.10 -0.022700 1972.70 451.65 -31.89 3.399 7.14 -0.022630 1972.63 451.65 -30.95 3.424 7.20 -0.022570 1972.57 471.85 -30.34 3.448 7.24 -0.022520 1972.52 488.38 -29.36 3.474 7.30 -0.022480 1972.48 488.38 -30.52 3.500 7.34 -0.022450 1972.45 488.37 -32.07 3.527 7.40 -0.022420 1972.42 488.38 -33.73 3.554 7.44 -0.022390 1972.39 488.38 -34.15 3.580 7.50 -0.022350 1972.35 539.78 -34.25 3.607 7.54 -0.022310 1972.31 741.75 -35.34 3.636 7.60 -0.022220 1972.22 741.75 -36.14 3.677 7.64 -0.022090 1972.09 743.58 -36.38 3.717 7.70 -0.021900 1971.90 574.67 -33.84 3.758 7.74 -0.021730 1971.73 462.67 -30.70 3.789 7.80 -0.021580 1971.58 466.35 -29.32 3.814 7.84 -0.021420 1971.42 473.69 -31.59 3.839 7.90 -0.021280 1971.28 473.69 -33.45 3.865 7.94 -0.021140 1971.14 497.55 -35.09 3.891 8.00 -0.021000 1971.00 497.55 -35.14 3.918 8.04 -0.020880 1970.88 497.56 -33.82 3.945 8.10 -0.020760 1970.76 497.55 -32.10 3.972 8.14 -0.020660 1970.66 497.76 -30.70 3.999 8.19 -0.020560 1970.56 473.69 -29.89 4.024 8.24 -0.020440 1970.44 473.69 -30.89 4.050 8.29 -0.020320 1970.32 475.52 -33.55 4.075 8.34 -0.020200 1970.20 473.69 -36.14 4.101 8.39 -0.020070 1970.07 473.69 -36.91 4.127 8.44 -0.019930 1969.93 475.52 -36.47 4.153 8.49 -0.019800 1969.80 473.69 -34.92 4.179 8.54 -0.019680 1969.68 482.87 -32.19 4.205 8.59 -0.019560 1969.56 490.21 -30.56 4.231 8.64 -0.019440 1969.44 490.21 -31.30 4.258 8.69 -0.019340 1969.34 488.38 -33.87 4.284 8.74 -0.019240 1969.24 489.60 -36.13 4.311 8.78 -0.019150 1969.15 489.60 -36.44 4.335 8.83 -0.018950 1968.95 493.88 -36.62 4.381 8.88 -0.018830 1968.83 495.72 -35.91 4.408 8.93 -0.018700 1968.70 493.88 -34.00 4.435 8.98 -0.018560 1968.56 493.88 -33.14 4.462 9.03 -0.018440 1968.44 493.88 -33.71 4.489 9.08 -0.018310 1968.31 493.88 -35.52 4.516 9.13 -0.018190 1968.19 495.72 -37.32 4.543 9.18 -0.018070 1968.07 495.72 -38.26 4.567 9.22 -0.017920 1967.92 497.55 -37.32 4.594 9.28 -0.017760 1967.76 495.72 -36.07 4.621 9.32 -0.017590 1967.59 497.56 -35.85 4.648 9.38 -0.017410 1967.41 495.72 -36.13 4.675 9.42 -0.017230 1967.23 504.90 -38.07 4.702 9.48 -0.017070 1967.07 510.41 -40.45 4.730 9.52 -0.016940 1966.94 510.41 -40.04 4.757 9.58 -0.016840 1966.84 488.38 -39.06 4.785 9.62 -0.016780 1966.78 468.18 -37.60 4.812 9.68 -0.016730 1966.73 468.18 -38.66 4.837 9.72 -0.016690 1966.69 468.18 -37.76 4.863 9.78 -0.016650 1966.65 462.68 -36.35 4.888 9.82 -0.016600 1966.60 454.92 -35.43 4.914 9.87 -0.016540 1966.54 506.74 -34.20 4.936 9.92 -0.016450 1966.45 508.57 -34.56 4.963 9.97 -0.016330 1966.33 506.74 -35.05 4.991 10.02 -0.016190 1966.19 507.96 -35.21 5.019 10.06 -0.016060 1966.06 507.96 -35.49 5.044 10.11 -0.015830 1965.83 508.57 -34.70 5.091 10.16 -0.015710 1965.71 510.41 -33.53 5.118 10.21 -0.015600 1965.60 508.58 -32.63 5.146 10.26 -0.015500 1965.50 510.40 -32.60 5.174 10.31 -0.015420 1965.42 508.58 -32.85 5.202 10.36 -0.015340 1965.34 510.40 -33.94 5.229 10.41 -0.015270 1965.27 508.58 -34.33 5.257 10.46 -0.015180 1965.18 510.41 -35.27 5.285 10.51 -0.015070 1965.07 508.56 -35.73 5.313 10.56 -0.014930 1964.93 510.41 -35.42 5.340 10.61 -0.014760 1964.76 508.58 -34.64 5.368 10.66 -0.014580 1964.58 510.40 -34.51 5.396 10.71 -0.014420 1964.42 508.58 -34.60 5.424 10.76 -0.014270 1964.27 510.40 -35.47 5.451 10.81 -0.014130 1964.13 508.58 -35.81 5.479 10.86 -0.014000 1964.00 510.40 -35.85 5.507 10.91 -0.013870 1963.87 508.58 -35.35 5.535 10.96 -0.013730 1963.73 510.41 -34.68 5.562 11.01 -0.013580 1963.58 508.56 -33.77 5.590