File:20190707 Compare warming stripes - HadCRUT vs Berkeley Earth - both 1961-1990 ref period.png

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Captions

Captions

Comparing [[w:Warming stripes]] derived from two different datasets (HadCRUT 4.6.0.0 and Berkeley Earth) each having a reference period 1961-1990 whose average temperature determines boundary between blue and red.

Summary[edit]

Description
English: Comparing w:Warming stripes derived from two different datasets (HadCRUT 4.6.0.0 and Berkeley Earth) each having a reference period 1961-1990 whose average temperature determines boundary between blue and red. Each hue covers a temperature range of 0.1 degrees Celsius. Overall date range is 1850-2018. Data is for globe (not a locality).

The HadCRUT dataset publication specified the 1961-1990 reference period, so no changes were necessary. The source data for the HadCRUT graphic is provided on the Wikimedia page of its graphic, which is provided below.

I started with the Berkeley Earth dataset that was published with a 1951-1980 reference period, and subtracted the difference between the average temperatures of the two time periods, to arrive at a dataset having a resulting reference period of 1961-1990. Following is the dataset I derived from the original Berkeley Earth dataset as described above:

General notes:

  • Credit for general concept of w:warming stripes: climate scientist Ed Hawkins, w:University of Reading, U.K.
  • Data values are visualized using color rather than locations of points on a graph.
  • The average temperature in reference period 1961-1990 determines boundary between blue and red.
  • Horizontal scale is time, from 1850 (left) to 2018 (right).
  • Each hue (up to 8 blue and 8 red) covers a temperature range of 0.1 degrees Celsius.
  • Data is global (not for a locality).
  • A thin purple horizontal bar (purposely designed to be visually discreet) shows the reference period for the diagrams
Click at right to show/hide ACTUAL DATA

Year Anomaly w/ 1961-1990 Ref period (Berkeley Earth, globe)
1850 -0.5598
1851 -0.4428
1852 -0.4258
1853 -0.4533
1854 -0.4033
1855 -0.3703
1856 -0.5183
1857 -0.6478
1858 -0.5058
1859 -0.4478
1860 -0.5103
1861 -0.6063
1862 -0.6773
1863 -0.4563
1864 -0.4818
1865 -0.3818
1866 -0.3233
1867 -0.3118
1868 -0.2888
1869 -0.3193
1870 -0.3888
1871 -0.4088
1872 -0.3873
1873 -0.3513
1874 -0.4333
1875 -0.4608
1876 -0.4638
1877 -0.0888
1878 -0.0023
1879 -0.3238
1880 -0.3823
1881 -0.2888
1882 -0.3338
1883 -0.3968
1884 -0.5413
1885 -0.5218
1886 -0.5508
1887 -0.5673
1888 -0.3838
1889 -0.2638
1890 -0.5363
1891 -0.4348
1892 -0.4783
1893 -0.4653
1894 -0.4518
1895 -0.3948
1896 -0.2923
1897 -0.2898
1898 -0.4798
1899 -0.3173
1900 -0.2133
1901 -0.2848
1902 -0.4128
1903 -0.5213
1904 -0.5623
1905 -0.4038
1906 -0.3293
1907 -0.4933
1908 -0.5228
1909 -0.5738
1910 -0.5483
1911 -0.5788
1912 -0.4953
1913 -0.4553
1914 -0.2858
1915 -0.2228
1916 -0.4608
1917 -0.5668
1918 -0.4123
1919 -0.3473
1920 -0.3323
1921 -0.2613
1922 -0.3538
1923 -0.3368
1924 -0.3283
1925 -0.2828
1926 -0.1353
1927 -0.2548
1928 -0.2368
1929 -0.4158
1930 -0.2073
1931 -0.1483
1932 -0.1843
1933 -0.3658
1934 -0.2313
1935 -0.2668
1936 -0.2163
1937 -0.0633
1938 -0.0623
1939 -0.0718
1940 0.0077
1941 0.0057
1942 -0.0423
1943 -0.0128
1944 0.0837
1945 -0.0443
1946 -0.1103
1947 -0.0348
1948 -0.1203
1949 -0.1523
1950 -0.2278
1951 -0.0553
1952 0.0057
1953 0.0647
1954 -0.1238
1955 -0.1748
1956 -0.2438
1957 0.0092
1958 0.0142
1959 -0.0188
1960 -0.0658
1961 0.0197
1962 -0.0353
1963 0.0107
1964 -0.2513
1965 -0.1618
1966 -0.0933
1967 -0.0578
1968 -0.1073
1969 0.0297
1970 -0.0278
1971 -0.1563
1972 -0.0658
1973 0.0507
1974 -0.1788
1975 -0.1163
1976 -0.2213
1977 0.0667
1978 -0.0533
1979 0.0432
1980 0.1457
1981 0.1812
1982 -0.0123
1983 0.1732
1984 0.0012
1985 -0.0068
1986 0.0407
1987 0.1767
1988 0.2157
1989 0.1007
1990 0.2902
1991 0.2677
1992 0.1007
1993 0.1237
1994 0.1852
1995 0.3082
1996 0.2012
1997 0.3667
1998 0.5027
1999 0.2722
2000 0.2837
2001 0.4332
2002 0.5022
2003 0.4932
2004 0.4092
2005 0.5602
2006 0.5037
2007 0.5167
2008 0.3992
2009 0.5197
2010 0.5847
2011 0.4652
2012 0.4872
2013 0.5282
2014 0.5852
2015 0.7277
2016 0.8357
2017 0.7287
2018 0.6622

Date
Source Own work
Author RCraig09
Other versions

Top and bottom panels are derived from, respectively, the following two images:

20190704 Warming stripes - HadCRUT.4.6.0.0 - world
20190705 Warming stripes - Berkeley Earth (world) - avg above- and below-ice readings

Licensing[edit]

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w:en:Creative Commons
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