WINTER MEAN VALUES FOR DISTURBED DAYS CHICHIJIMA YEAR D I H X Y Z F Deg Min Deg Min nT nT nT nT nT 1973 -3 3.1 *1 36 39.4 *1 32536 *1 32489 *1 -1731 *1 24215 *1 40557 *1 1974 -3 3.6 36 37.7 32554 32507 -1737 24202 40564 1975 -3 4.4 36 35.7 32571 32523 -1746 24186 40568 1976 -3 5.1 36 33.0 32598 32550 -1754 24165 40578 1977 -3 6.0 36 31.1 32622 32574 -1763 24155 40591 1978 -3 7.4 36 30.2 32628 32579 -1777 24147 40591 1979 -3 8.0 36 27.6 32664 32615 -1785 24135 40613 1980 -3 8.7 36 26.5 32683 32633 -1792 24133 40627 1981 -3 8.9 36 25.9 32695 32645 -1795 24133 40637 1982 -3 9.5 36 27.8 32679 32629 -1800 24149 40632 1983 -3 9.7 *2 36 28.7 *2 32676 *2 32626 *2 -1802 *2 24161 *2 40639 *2 1984 -3 14.7 *2 36 30.2 *2 32708 *2 32655 *2 -1852 *2 24206 *2 40691 *2 1985 -3 15.9 36 30.4 32720 32667 -1863 24218 40708 1986 -3 16.8 36 32.2 32717 32663 -1872 24242 40719 1987 -3 15.8 *3 36 32.3 32746 32698 *3 -1864 *3 24264 40756 1988 - *3 36 34.6 *4 32713 *4 - *3 - *3 24274 *4 40736 *4 1989 -3 20.3 *3 36 38.4 *4 32709 *4 32653 *3 -1905 *3 24327 *4 40764 *4 1990 -3 21.2 36 38.9 32735 32679 -1914 24354 40801 1991 -3 22.6 36 41.9 32727 32669 -1928 24392 40817 1992 -3 24.4 36 46.1 32710 32652 -1943 24442 40833 1993 -3 25.6 *5 36 49.1 *5 32722 *5 32663 *5 -1956 *5 24496 *5 40875 *5 1994 -3 26.9 *5 36 54.0 *5 32713 *5 32654 *5 -1967 *5 24562 *5 40908 *5 1995 -3 27.4 *6 36 55.8 *6 32718 *6 32658 *6 -1972 *6 24592 *6 40929 *6 1996 -3 30.4 *6 37 1.5 *6 32722 *6 32660 *6 -2001 *6 24681 *6 40986 *6 1997 -3 31.2 37 4.3 32699 32637 -2007 24704 40982 1998 -3 33.1 37 9.3 32666 32603 -2024 24754 40975 *7 1999 -3 33.9 *8 37 11.7 *8 32654 *8 32591 *8 -2030 *8 24781 *8 40990 *8 2000 -3 35.1 37 14.6 32631 32567 -2040 24807 40990 2001 -3 35.3 37 15.6 32618 32555 -2042 24813 40983 2002 -3 35.4 37 16.4 32614 32550 -2042 24822 40986 2003 -3 36.6 37 18.0 32590 32526 -2052 24827 40971 2004 -3 37.9 37 19.0 32572 32506 -2063 24828 40956 2005 -3 38.0 37 18.3 32592 32527 -2065 24833 40975 2006 -3 38.8 37 18.7 32596 32530 -2073 24843 40984 2007 -3 40.9 37 19.9 32600 32533 -2094 24863 41000 2008 -3 42.8 37 20.8 32609 32540 -2112 24883 41019 2009 -3 45.1 37 22.2 32619 32549 -2134 24912 41044 2010 -3 47.9 37 24.3 32615 32544 -2160 24941 41060 2011 -3 51.4 37 26.8 32613 32539 -2194 24977 41079 2012 -3 55.6 37 29.4 32612 32536 -2233 25015 41103 2013 -3 58.5 37 30.4 32639 32560 -2263 25050 41144 2014 -4 2.9 37 31.8 32652 32571 -2305 25083 41174 2015 -4 7.2 37 33.9 32656 32572 -2346 25116 41199 2016 -4 11.2 37 33.7 32692 32605 -2387 25142 41242 2017 -4 14.8 37 33.7 32721 32632 -2423 25163 41278 2018 -4 18.4 37 32.3 32760 32667 -2461 25173 41315 2019 -4 22.5 37 30.3 32798 32703 -2502 25172 41346 2020 -4 26.3 37 27.6 32833 32735 -2541 25157 41364 2021 -4 29.8 37 25.5 32857 32755 -2576 25143 41374 2022 -4 33.1 37 24.5 32871 32767 -2609 25139 41382 *1 From 1973/01/01 to 1973/01/31 are missed. *2 From 1983/11/07 to 1984/03/31 are missed. *3 From 1987/04/01 to 1989/01/22 are missed. *4 From 1988/04/01 to 1989/01/22 are missed. *5 From 1993/12/07 to 1994/01/12 are missed. *6 From 1995/09/24 to 1996/05/12 are missed. *7 From 1998/01/09 to 1998/03/12 are missed. *8 From 1999/09/02 to 1999/11/17 are missed. Seasons are grouped as follows: Winter : January, February, November, December Equinox : March, April, September, October Summer : May, June, July, August