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["% Match points used for synchronization of NGRIP, GRIP, and GISP2"]
["%"]
["% File NGRIP_GRIP_GISP2_match_points_27nov2006"]
["% The file contains the match points used for the transfer of the GICC05 time scale from NGRIP to GRIP and GISP2."]
["% The three cores have been matched using mainly volcanic markers."]
["% The uncertainty of the match point depths is discussed in the Quat. Sci. Res. paper referenced below."]
["%"]
["% Synchronized data from the three cores can be obtained from www.icecores.dk"]
["% (file name GICC05_NGRIP_GRIP_GISP2_data_20y_27nov2006)."]
["%"]
["% The NGRIP1 core reaches down to a depth of 1372 m. The NGRIP2 core (drilled 20 meters away from the "]
["% NGRIP1 core) reaches from surface to bedrock, but high-resolution measurements have only been carried"]
["% out downwards from 1346 m. In the 26 m overlap zone, the cores are offset by 0.43 m on average, "]
["% probably due to uncertainties in the logging procedure (see Schøtt Hvidberg et al., Ann. Glac. 35, 2002)."]
["% Thus, the same features appear at larger depths in the NGRIP1 than in the NGRIP2 core. "]
["% The first 5 match points are given as NGRIP1 depths, while the remaining depths are NGRIP2 depths."]
["%"]
["% REFERENCES:"]
["%"]
["% The match points down to 1609.45 m NGRIP depth have been published in "]
["% S.O. Rasmussen, K.K. Andersen, A.M. Svensson, J.P. Steffensen, B.M. Vinther, H.B. Clausen, "]
["% M.-L. Siggaard-Andersen, S.J. Johnsen, L.B. Larsen, D. Dahl-Jensen, M. Bigler, R. Röthlisberger, "]
["% H. Fischer, K. Goto-Azuma, M.E. Hansson, and U. Ruth"]
["% A new Greenland ice core chronology for the last glacial termination"]
["% Journ. Geophys. Res., vol. 111, D06102, 2006, doi:10.1029/2005JD006079"]
["%"]
["% The remaining part of the match points are related to work described in the paper"]
["% S.O. Rasmussen, I.K. Seierstad, K.K. Andersen, M. Bigler, and S.J. Johnsen"]
["% Synchronization of the NGRIP, GRIP, and GISP2 ice cores across MIS 2 and palaeoclimatic implications"]
["% Accepted, Quat. Sci. Rev., INTIMATE special issue, 2007"]
["%"]
["% For more data downloads, go to www.icecores.dk"]
["%"]
["% NGRIP","GRIP    ","GISP2    ","GICC05 age","GICC05 mce"]
["% depth (m)","depth (m)","depth (m)","years (b2k)","years (b2k)"]
[1228.64,1334.01,1392.61,8236,47]
[1273.3,1380.35,1439.75,8696,57]
[1296.12,1404.3,1463.71,8943,62]
[1309.99,1418.7,1477.87,9097,65]
[1341.28,1452.85,1511.41,9461,72]
[1380.18,1496.02,1554.34,9946,82]
[1409.84,1528.59,1586.99,10347,89]
[1426.17,1547.1,1605.06,10589,91]
[1457.67,1583.9,1639.79,11088,94]
[1470.6,1598.9,1653.9,11304,96]
[1473.84,1602.6,1657.4,11359,96]
[1476.52,1605.75,1660.33,11406,97]
[1479.68,1609.4,1663.8,11471,97]
[1485.1,1615.65,1669.75,11570,98]
[1487.44,1618.35,1672.48,11609,98]
[1488.57,1619.74,1673.75,11627,98]
[1491.36,1623.05,1676.85,11678,98]
[1492.61,1624.5,1678.24,11708,99]
[1495.68,1627.7,1681.28,11807,102]
[1496.37,1628.44,1681.96,11829,103]
[1501.83,1634.6,1687.75,12019,109]
[1504.02,1637.1,1690.06,12092,111]
[1506.1,1639.55,1692.32,12169,114]
[1508.05,1641.7,1694.24,12241,116]
[1517.98,1652.89,1704.44,12602,128]
[1522.15,1657.5,1708.64,12752,133]
[1524.8,1660.45,1711.24,12843,136]
[1527.35,1663.35,1713.9,12918,138]
[1529.02,1665.26,1715.71,12961,139]
[1530.5,1667,1717.27,12995,140]
[1531.75,1668.51,1718.68,13027,141]
[1538.39,1676.25,1725.78,13213,146]
[1545.65,1684.66,1733.62,13394,151]
[1556.83,1697.69,1745.64,13655,158]
[1563.08,1705.06,1752.47,13795,161]
[1564.5,1706.65,1753.94,13824,162]
[1567.56,1710.2,1757.26,13890,164]
[1570.5,1713.74,1760.39,13954,165]
[1577.6,1721.72,1767.97,14140,170]
[1580.71,1725.4,1771.5,14210,172]
[1587.62,1733.75,1779.16,14348,176]
[1590.45,1736.75,1782.22,14406,178]
[1595.1,1742.31,1787.43,14501,180]
[1601.59,1749.88,1794.47,14623,184]
[1604.93,1753.72,1798.16,14702,186]
[1606.57,1755.5,1799.8,14763,190]
[1607.45,1756.55,1800.73,14793,191]
[1609.45,1758.71,1802.88,14863,193]
[1610.8,1760.19,1804.23,14915,195]
[1612,1761.46,1805.41,14967,196]
[1614.72,1764.35,"NaN",15083,199]
[1619.57,1769.52,1812.91,15297,209]
[1621.54,1771.62,"NaN",15384,214]
[1625.58,1775.82,1818.89,15559,221]
[1627.96,1778.34,1821.27,15671,226]
[1642.66,1793.37,1835.43,16333,261]
[1645.83,1796.72,1838.6,16469,268]
[1687.77,1840.78,1883.03,18296,361]
[1688.68,"NaN",1883.92,18335,362]
[1692.63,1845.56,"NaN",18518,370]
[1693.68,1846.6,"NaN",18567,375]
["NaN",1847.87,1890.11,18623,378]
[1699.82,1852.61,1894.73,18833,388]
[1705.79,"NaN",1900.61,19101,402]
["NaN",1863.67,1905.31,19325,413]
[1714.18,1867.33,1908.76,19480,421]
[1716.15,1869.39,1910.69,19564,425]
[1719.13,1872.49,"NaN",19700,431]
[1721.32,1874.76,1915.73,19806,435]
[1728.59,1882.23,1922.77,20136,448]
["NaN",1892.18,1932.03,20565,465]
[1770.81,1926.34,1963.66,22244,544]
[1782.66,1939.26,"NaN",22851,571]
[1783.7,1940.37,"NaN",22905,574]
[1798.35,1955.95,1990.98,23617,612]
[1802.27,1960.03,"NaN",23864,629]
[1814.92,"NaN",2006.77,24668,674]
[1820.39,1978.58,2012.06,25018,691]
[1831.58,"NaN",2022.79,25759,735]
[1840.22,1997.83,2030.74,26282,760]
[1843.68,2001.13,2033.89,26477,767]
["NaN",2018.28,2049.96,27548,822]
[1862.58,2018.92,2050.57,27574,823]
[1864.02,2020.43,2051.97,27622,825]
[1866.21,2022.53,2054.07,27693,827]
[1866.87,2023.14,2054.62,27715,828]
[1868.55,2024.82,"NaN",27763,831]
["NaN",2025.98,2057.25,27810,834]
[1870.39,2026.64,2057.85,27852,838]
[1871.39,2027.53,"NaN",27912,842]
[1872.25,2028.27,2059.49,27967,847]
[1880.01,2035.25,2066.16,28454,881]
[1888.7,2043.41,2074.09,28807,895]
[1889.86,2044.51,2075.17,28842,896]
[1892.66,"NaN",2077.4,28961,901]
[1894.01,2048.24,"NaN",29045,905]
[1902.84,2055.99,2086.38,29678,946]
["NaN",2057.36,2087.71,29795,957]
[1916.8,2068.05,"NaN",30641,1011]
[1918.95,2069.76,2099.52,30753,1020]
[1929.87,2079.37,2108.9,31428,1067]
[1931.05,2080.41,2109.92,31506,1072]
[1939.51,2087.83,2117.07,32029,1105]
[1939.94,2088.21,2117.4,32054,1107]
[1944.45,2092.24,2121.23,32248,1122]
[1946.54,2094.09,2123.05,32324,1123]
[1947.34,2094.83,2123.75,32354,1125]
[1947.94,2095.39,2124.27,32377,1128]
[1948.72,2096.11,2124.95,32404,1129]
[1949.23,2096.59,2125.4,32421,1130]
[1949.57,2096.92,2125.72,32431,1130]
[1950.07,"NaN",2126.15,32449,1130]
[1950.45,2097.75,2126.51,32461,1130]
[1951.09,2098.33,2127.05,32482,1131]