Annual means, Bjørnøya Geomagnetic Observatory      
IAGA code: BJN Geographic latitude:   74° 30',2 N   Altitude: 20 m  
Country:   NO  Geographic longitude:  19° 00',1 E   Elements measured: D,H,Z

Year  D (°  ') D (°) H(nT)  Z(nT)   I(°  ')  I (°)  F(nT)   X(nT)   Y(nT)   Notes 
1952  1  41.0  1.683 9185   51900   79 57.8  79.964 52706   9181    270     Quiet  
1953  1  50.0  1.833 9190   51940   79 58.0  79.966 52747   9185    294     Quiet  
1954  2  00.0  2.000 9194   51970   79 58.1  79.968 52777   9188    321     Quiet  
1955  2  13.0  2.217 9195   52008   79 58.4  79.974 52815   9188    356     Quiet  
1956  2  20.0  2.333 9198   52042   79 58.6  79.977 52849   9190    374     Quiet  
1957  2  25.0  2.417 9200   52080   79 58.9  79.982 52886   9192    388     Quiet  
1958  2  29.0  2.483 9205   52128   79 59.1  79.986 52934   9196    399     Quiet  
1959  2  32.0  2.533 9211   52162   79 59.1  79.986 52969   9202    407     Quiet  
1960  2  35.0  2.583 9216   52200   79 59.3  79.988 53007   9207    415     Quiet  
1961                                                                        Calibration missing  
1962  2  39.0  2.650 9230   52280   79 59.3  79.988 53089   9220    427     Quiet  
1963  2  40.0  2.667 9235   52310   79 59.3  79.988 53119   9225    430     Quiet  
1964  2  42.0  2.700 9240   52330   79 59.2  79.986 53140   9230    435     Quiet  
1965  2  44.0  2.733 9246   52350   79 59.0  79.984 53160   9235    441     Quiet  
1966  2  45.0  2.750 9255   52370   79 58.7  79.978 53181   9244    444     Quiet  
1967  2  45.0  2.750 9260   52400   79 58.7  79.978 53212   9249    444     Quiet  
1968  2  43.0  2.717 9270   52450   79 58.6  79.977 53263   9260    439     Quiet  
1969  2  37.0  2.617 9270   52500   79 59.2  79.986 53312   9260    423     Quiet  
1970  2  30.0  2.500 9275   52545   79 59.4  79.990 53357   9266    405     Quiet  
1971  2  28.0  2.467 9280   52590   79 59.6  79.993 53402   9271    399     Quiet  
1972  2  27.0  2.450 9285   52640   79 59.8  79.997 53453   9277    397     Quiet  
1973  2  25.0  2.417 9288   52690   80 00.2  80.003 53502   9280    392     Quiet  
1974  2  28.0  2.467 9292   52740   80 00.5  80.008 53552   9283    400     Quiet  
1975  2  30.0  2.500 9296   52780   80 00.7  80.011 53592   9287    405     Quiet  
1976  2  36.0  2.600 9300   52825   80 00.9  80.015 53637   9290    422     Quiet  
1977  2  43.0  2.717 9303   52850   80 01.0  80.017 53663   9293    441     Quiet  
1978  2  54.0  2.900 9300   52885   80 01.6  80.026 53696   9288    471     Quiet  
1979  3  07.0  3.117 9295   52905   80 02.1  80.035 53715   9281    505     Quiet  
1980  3  12.3  3.205 9283   52924   80 03.1  80.051 53732   9268    519     Digitized. Quiet  
1981  3  21.0  3.350 9245   52915   80 05.4  80.090 53717   9229    540     Quiet  
1982  3  27.0  3.450 9228   52915   80 06.5  80.108 53714   9211    555     Quiet  
1983  3  33.0  3.550 9200   52905   80 08.1  80.135 53699   9182    570     Quiet  
1984  3  37.0  3.617 9180   52895   80 09.3  80.154 53686   9162    579     Quiet  
1985  3  42.0  3.700 9155   52890   80 10.8  80.180 53676   9136    591     Quiet  
1986  3  47.0  3.783 9130   52885   80 12.3  80.205 53667   9110    602     Quiet  
1987  3  54.8  3.913 9091.0 52887.9 80 14.8  80.247 53664   9070    620     Start digital rec. All Day means. 
1988  4  07.6  4.127 9051.3 52882.1 80 17.2  80.287 53651   9028    651     All day  
1989  4  11.3  4.188 9037.2 52892.1 80 18.2  80.304 53659   9013    660     All day  
1990  4  17.0  4.283 9019.4 52885.6 80 19.3  80.322 53649   8994    674     All day  
1991  4  24.1  4.402 8997.2 52890.6 80 20.8  80.346 53650   8971    691     All day  
1992  4  32.5  4.542 8979.8 52887.7 80 21.8  80.364 53645   8952    711     All day  
1993  4  44.2  4.737 8959.0 52894.2 80 23.2  80.387 53648   8928    740     All day  
1994  4  57.0  4.950 8934.5 52912.3 80 24.9  80.416 53661   8901    771     All day  
1995  5  06.4  5.107 8929.2 52917.2 80 25.3  80.422 53665   8894    795     All day  
1996  5  19.8  5.330 8920.1 52913.0 80 25.9  80.431 53660   8882    829     All day  
1997  5  33.0  5.550 8913.4 52951.2 80 26.7  80.445 53696   8872    862     All day  
1998  5  47.7  5.795 8904.6 52987.3 80 27.6  80.461 53730   8859    899     All day  
1999  6  00.4  6.007 8896.3 53022.6 80 28.5  80.475 53764   8847    931     All day  
2000  6  13.9  6.232 8894.3 53063.2 80 29.1  80.485 53803.5 8841.7  965.5   All day  
2001  6  26.4  6.440 8890.6 53101.8 80 29.7  80.495 53840.9 8834.5  997.2   All day  
2002  6  39.1  6.652 8884.9 53139.0 80 30.5  80.508 53876.7 8825.1 1029.2   All day  
2003  7  01.1  7.018 8866.7 53207.8 80 32.3  80.539 53941.5 8800.3 1083.4   All day  
2004  7  15.7  7.262 8864.8 53232.3 80 32.7  80.545 53965.4 8793.7 1120.5   All day  
2005  7  28.5  7.475 8854.7 53266.3 80 33.7  80.562 53997.3 8779.5 1151.9   All day. Data incomplete. 
2006  7  38.3  7.638 8858.8 53287.8 80 33.7  80.561 54019.1 8780.2 1177.5   All day  
2007  7  50.8  7.847 8856.1 53328.5 80 34.3  80.571 54058.9 8773.2 1209.1   All day  
2008  8  07.4  8.123 8851.1 53358.0 80 34.9  80.581 54087.1 8762.3 1250.7   All day