Indices of geomagnetic activity

Indices of geomagnetic activity

JournalofAtm~herfcandTerwe~lPhyeics. 1971,Vol.33,~.1497. PergamonFnm PrintedinNorthemIrelmd of the observatories HBTLAND (Ha), ESKDALEMUIB (Es) a...

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JournalofAtm~herfcandTerwe~lPhyeics.

1971,Vol.33,~.1497. PergamonFnm PrintedinNorthemIrelmd

of the observatories HBTLAND

(Ha), ESKDALEMUIB

(Es)

and LERWICK (Le)

Mcly 1971 The f&urea given on thispage represent the K-indicas for 3.hr intervals, beginning with 00-03 hr for the first and ending with 21-24 hr for the eighth figure, May 1971

r

Ha

Range for K = 9 : 500y

1 2 3 4 6 6 7 8 9 10 11 12 13 14 16 I6 17 18 19 20 21 22 23 24 26 26 27 28 29 30 31

K-Imdieea 1211 6432 1210 3301 2001 3334 4633 2223 3222 4332 2310 1111 2110 3313 4221 1100 6355 5433 3222 3013 2102 2212 4222 2211 1222 3221 1010 1100 3110 3233 2111

2233 2222 2333 2110 1342 6654 3643 2333 1432 2232 1111 2112 1321 3443 3323 1233 6665 3541 2323 2111 2320 2221 1343 3232 2232 2322 0001 2231 2223 4333 2110

r

Szdsla 16 22 15 11 13 32 30 20 19 21 10 10 11 24 20 11 39 28 19 12 12 14 21 16 16 17 3 10 14 24 9

ES

Range for K = 9: 760y K-Iradices 2210 4432 1210 3301 2100 3234 4533 2223 3221 4322 1311 1110 2100 2213 3222 1101 4355 5433 3222 2013 2002 2211 3222 2202 2221 3222 0000 0000 2011 3233 2112

2233 2222 3323 2110 1342 6566 3544 2332 2333 2221 1001 2112 2221 3433 3323 1233 EiBFi5 4441 3323 2101 2320 2211 1333 2332 2222 2222 0001 2232 2222 6333 2110

1497

T

SW?& 15

21 15 11 13 32 31 19 19 18 8 9 10 21 20 12 38 28 20 10 11 12 19 16 15 17 1 9 12 26 10

Le

Range for K = 9:lOOOy K-IdkSS 1210 6332 1110 4400 2100 4434 6442 3222 3311 3321 1210 0000 2000 2202 4321 0000 6463 3543 3312 2012 1001 2211 4211 1111 1111 3221 2000 0000 2000 2223 2011

1122 2111 2224 1110 0332 4564 3434 2232 2332 2221 0000 1002 1200 2333 1213 0133 5666 4442 3213 1100 2310 1110 1332 1222 2222 2212 0000 2021 1122 4332 1010

Day

slm 10 18 13 11 11 34 30 18 18 16 4 3 7 17 17 7 41 34 18 7 8 9 17 11 12 16 2 5 8 21 6

I

2 3 4 6 6 7 8 9 10 11 12 13 14 16 16 17 18 19 20 21 22 23 24 26 26 27 28 29 30 31