C O M M O N W E A L T H O F AUSTRALIA

DEPARTMENT O F NATIONAL D E V E L O P M E N T

BUREAU O F MINERAL RESOURCES,

GEOLOGY A N D GEOPHYSICS

GEOPHYSICAL OBSERVATORY REPORT

VOL 7 NO 11

NOVEMBER

1959

y Mt<

t.^ 5 5. Issued under the authority of Senator The Hon. W. H, Spooner,

, j 0 / « J Minister for National Development

H U ^ •

copy li

DEPARTMENT OF NATIONAL DEVELOPMENT

M i n i s t e r - S E N A T O R The H O N . W . H. S P O O N E R

Secretary - H. G. R A G G A T T

BUREAU OF MINERAL RESOURCES, GEOLOGY AND GEOPHYSICS

J. M. R A Y N E R - Director

This Report was prepared in the Geophysical Branch :

R. F. T H Y E R - Chief Geophysicist

J. C. D O O L E Y - Supervising Geophysicist

C 0 N T E N T S

Sub.iect Page

Contributing Observatories

Magnetic K-Indices

Magnetic K-Indices February & March "1959

Solar Flare Effect

Principal Magnetic Storms, Sudden Commencements and Other Phenomena

Toolangi Gnangara Macguarie Island Wilkes

Port Moresby-

Port Moresby

Gnangara Port Mpresby

Toolangi Gnangara Port Moresby

2,3&k

5 6 7 8 9

10

6 12 1,1 11 12

Unless otherwise stated all times are given in Greenwich Mean Time

The terminology used in this report is that accepted by international convention. Should further information be required, explanation can be obtained by applying to :-

Chief Geophysicist, Bureau of Mineral Eesources, Geology & Geophysics, 203 Collins Street, MELBOUEKE, C . 1 , , A U S T R A L I A .

COHTRIBUTIHG OBSEEVATOHIES

TOOLAEGI MAGNETIC OBSERVATORY J.R. Cleary. Observer-in-Charge

Geographic Latitude 37°32 'S Longitude 1l+5°28'E Geomagnetic Latitude -46.7° Longitude 220 .8°

Instruments

Ruska magnetometer No. I|-813 Schulze earthinductor No. i+9 La Cour QHMs Nos.288, 289, 290 La Coui- BMZ No,-119 La Cour D, H cS: Z recording variometers

Sensitivity-

Recording speed

D 1. i 6 min/mm H 4. 6 Y/mm Z k.U r/rm 15 mm/hour

GNANGABA MAGNETIC OBSERVATORY P.M. McGregor. OTDserver-in-Charge

Geographic Latitude 3 i °47 'S Geomagnetic Latitude -U3.2°

Longitude Longitude

115°57 'E 1 85.8°

Instruments

C . I .W . field magnetometer and theodolite earthinductor No.7 Askania magnetometer No.508810 Askania earthinductor No.5111081 La Cour QHMs No. 291, 292, 293 La Cour BMZ No.120 La Cour, D, H & Z recording variometers

Standard instrument : Sensitivity

Rapid-rxin instrument: Recording speed Sensitivity

0 . 9 3 . 2 5.U

miiy mm Y/mm Y/mm

15 mm/hour D 1 . 0 min/mm H 1+.5 Y/mm Z 1 . 5 Y/mm 180 ram/hour Recording speed

Askania (Eschenhagen type)> iH variometer with visual recorder Sensitivity : 3 Y/mm Recording speed : 20 mm/hour

COM'RIBUTING OBSERVATOSIES

MACQUARIE ISLAND MAGNETIC OBSERVATORY R. Hollin^sworth.

Observer-in-Charge

Geographic Latitude 54°30 'S Longitude 158°57 'E Geomagnetic Latitude -60.7° Longitude 2i+3.0°

Instrximents

La Cour QHMs Nos.177, 178, 179 La Cour BMZ No. 6k Kew pattern magnetometer No.158 La Cour D, H & z recording variometers

Sensitivity : D 0 . 9 mln/mra

H 1 2.5 r/rni Z 1U.1 Y/ram

Recording speed ; 15 mm/hour

MAWSON MAGNETIC OBSERVATORY M. Kirton. 0"bserver-in-Charge

Geographic Latitude 67°36 'S Longitude 62 °53 'E Geomagnetic Latitude -73.2° Longitude 103 .1 °

Instruments

La Cour QHMs Kos.300, 301, 302 La Cour BMZ No.62 La Cour D, H & Z recording variometers

Sensitivity : D 0 . 8 mln/mm H 9 . 9 T/mm Z 1 0 .3 r/jm

Recording speed : 15 mm/hour Bar fluxmeter magnetometer N-S, E-W and vertical components

CONTRIBITTIKG OBSERVATORIES

WILKES MAGNETIC OBSESVATORY R. Underwood. Observer-in-Charge

Geographic Latitude 66°15 'S Longitude 110°35 'E Geomagnetic Latitude -17.2° Longitude 179 .2 °

Instruments

C . I .W . field magnetometer and theodolite earthlnductor Ko.28 Ruska D, H & Z recording variometers

Standard instrument : Sensitivity

Rapid-run instrument: Recording speed Sensitivity-

Recording speed

D M , 3 mirymm H 2U.2 y/mm Z 2k. 7 Y/mm 20 mm/hour D 1 .2 min/mm H 5. 2 Y/mm Z 5. 7 Y/mm 214-0 mm/hour

PORT MORESBY MAGNETIC OBSERVATORY J. A. Brooks. Observer-in-Charge

Geographic Latitude S°2k.'5S Geomagnetic Latitude -18,7°

Longitude Longitude

1i4-7°09. M E 21 8. 0°

Instruments

La Cour QHMs Nos,l87, 188, 189 La Cour BMZ Ho.68 La Cour D, H & Z recording variometers

Sensitivity D 0. 9 min/mm H 6.1 Z 7.1

Y/mm Y/mm

Recording speed : 15mm/hour

MAGKETIC K-IHDICES POE NOVEMBER - TOOLAKGI

Range for lower limit of K=9 is 500 gammas

Day K--Indices K-S\im

1 k 5 5 6 k 2 U 3k 2 3 5 5 6 k 5 k 36 3 5 5 k k 5 k 35 k 3 3 k k 5 k i+ 3 30 5 h 1+ 5 k k 3 2 2 28 6 h 3 3 k 3 3 2 3 25 7 1 3 3 2 3 3 1 20 8 2 3 3 3 U 3 2 1 21

9 2 3 2 2 2 3 3 3 20 10 2 2 3 3 3 2 2 3 20 11 3 2 1 2 0 1 2 3 14 12 3 2 2 1 1 2 2 2 15 13 3 3 2 3 2 2 3 h 22

14 k 5 k k 5 k 2 3 31 15 2 2 3 1 1 1 1 0 11 16 2 2 3 2 3 3 3 2 20

17 3 2 3 k 1 0 1 • 18 18 2 3 3 2 3 3 3 23 19 3 k U 3 k 3 1 2 24 20 3 2 2 1 0 0 1 2 11 21 3 3 3 U k k 3 k 28 22 3 k k 3 2 3 k 27 23 3 3 k 6 3 3 1 27 2k 3 2 2 2 3 3 1 2 18 25 3 3 3 3 2 2 2 2 20 26 3 3 3 i+ 3 2 3 3 24 27 3 3 k 1 2 2 3 4+ 22+ 28 6 6 6 6 5 3 3 3 38 29 2 2 2 3 2+ 3 3 3 22 30 3 U 4 5 4 5 3 3 31

MAGNETIC K-IKDICES FOB NOVEMBER - PORT MORESBY

Range for lower limit of K=9 is 350 gammas

Bay K-•Indices E-Sum

4 3 k 5 5 6 4 3 4 34 2 k h 5 5 6 4 6 4 38 3 k k U k 5 5 6 4 36 ij- 2 2 k 3 5 5 4 3 28

5 3 h 5 k 3 2 3 28 6 4 2 1 3 5 3 1 5 22

7 2 3 2 1 2 3 3 1 17 8 2 3 2 2 3 2 2 1 M 9 3 3 2 1 1 2 3 4 19

10 h 2 1 3 2 1 1 4 18 11 3 2 2 2 1 1 1 2 14 12 3 2 2 2 1 1 2 3 16

13 3 2 2 2 2 3 3 4 21 1i4- 5 k 3 k 5 5 4 4 34 15 2 1 2 1 1 2 1 1 11 16 1 1 _ .. - - - - XX 17 3 3 3 3 1 0 2 19 18 2 3 2 3 3 4 4 25 19 3 2 3 3 3 2 1 3 20 20 2 1 1 1 0 0 1 2 08 21 3 2 3 U 4 4 3 4 27 22 3 k h 3 3 1 3 4 25 23 5 k k U 5 3 5 3 33 2h 2 2 0 0 3 2 2 4 15 25 2 1 3 3 3 2 3 3 20 26 2 2 3 3 2 3 4 23 27 2 2 3 1 2 2 3 6 21 28 7 7 5 7 6 3 3 3 41 29 1 2 2 3 4 3 3 3 21 30 0 2 U k 6 6 3 4 29

Day

30

SOLAR FLARS EFFECT

Began h m

02 47

K g '

k 0

MAGHETIC K-IKDICES FOR HOTEMBEE - MACQUARIE ISLAND

Range for lower limit of K=9 is 1500 gammas

Daj K-•Indices K-Sum

1 3 5 7 7 7 5 3 h 41 2 5 6 6 7 7 7 7 5 50 3 5 5 7 6 7 7 6 47 U 2 7 7 6 7 6 43 5 5 k 7 7 5 3 2 37 6 3 3 U 5 5 2 3 29 7 2. 3 3 2 U 3 2 23 8 3 3 5 6 3 1 29 9 1 3 1 1 2 3 2 3 16

10 2 2 3 6 5 2 2 3 25 11 2 2 1 4 1 0 1 2 13 12 2 3 1 2 1 1 2 2 14 13 2 2 3 h 3 2 24 1i| U 5 7 6 6 3 3 38

3 2 3 3 3 1 1 2 18 16 1 1 2 3 4 5 3 3 22 17 3 5 3 3 6 2 1 1 24 18 3 3 2 i4. 5 h 5 2 28 19 2 3 6 6 5 5 1 2 30 20 2 3 2 2 0 0 1 1 11 21 3 2 2 7 6 5 3 3 31 22 3 3 3 6 6 3 3 2 29 23 6 7 6 6 6 7 2 41+ 2k 2 2 2 1 5 5 1 1 19 25 2 2 6 U 3 2 2 25 26 3 3 k 5 k 2 1 3 25 27 3 3 5 3 3 3 3 h 27 28 7 7 7 7 5 3 144 29 1+ 3 5 5 5 3 2 31 30 2 3 6 5 1 7 5 h 39

MAGNETIC K-IKDICES FOB NOVEMBER - PORT MORESBY

Range for lower limit of K=9 is 2500 gammas

Day K-•Indices K-Sum

1 5 5 5 4 3 2 3 4 31 2 5 6 4 4 4 3 3 4 33 3 5 5 5 4 4 4 4 4 35 k k 4 3 3 4 4 3 29 5 5 5 4 3 3 2 2 3 27 6 k 5 3 4 3 2 2 4 27 7 h 3 4 2 2 2 3 3 23 8 k h 4 3 3 2 2 3 25 9 3 5 4 3 2 2 3 2 24

10 3 5 5 4 2 2 2 3 26 11 5 5 3 1 1 2 3 24 12 3 5 5 3 2 1 2 3 24 13 3 k 3 3 3 3 3 3 25

k 6 5 4 4 3 3 3 32 15 h 4 3 1 1 1 2 20 16 2 k 3 3 3 3 2 3 23 17 k 5 5 3 3 2 2 3 27 18 5 5 4 3 3 3 3 3 29 19 k 5 4 3 2 2 1 2 23 20 3 k 3 2 1 1 1 2 17 21 k 5 4 3 3 3 3 2 27 22 5 6 5 4 3 2 3 3 31 23 5 4 4 3 3 3 3 2 27 24 3 4 3 2 3 2 2 2 21

25 3 4 3 3 3 1 0 2 19 26 3 4 4 3 3 2 1 4 24 27 5 6 4 3 2 4 4 32 28 5 6 6 6 3 1 3 4 34 29 5 4 3 3 2 2 3 26 30 5 6 6 5 4 3 3 4 36

MAGNETIC K-IKDICES FOB NOVEMBER - PORT MORESBY

Range for lower limit of K=9 is 300 gaimnas

Day K-Indices

1 3 U U 5 5 U '3 3+ 2 3 U U 5 5 3 3 3 3 U U 3 3 5 U U 3

Q 3 3 U U 3 h 5 U h U h Q 3 3 6 U 3 U 3 3 3 3 7 Q 3 Q Q Q 3 3 Q 8 3 Q Q Q h 3 Q Q 9 Q+ 3+ Q+ Q+ Q+ 3+ 3+ 3+

10 3+ Q+ 3+ 3+ 3+ Q+ 3+ 3+ 11 U+ Q+ Q+ Q Q Q Q 3 12 3 Q Q Q Q Q Q 3 13 3 3 Q 3 Q 3 3

U U 3 U U U 3 3 15 Q Q Q Q Q Q Q 3 16 Q 3 Q Q Q 3 3 Q 17 3 3 Q U h Q Q Q 18 3 Q 3 Q 3 Q 3 3 19 3 3 3 U U Q Q Q 20 3 3 Q Q Q Q Q Q 21 Q 3 3 Q 5 U 3 3 22 Q h U h 3 3 3 h 23 5 3 3 3 5 Q 3 Q 2i+ Q 3 Q Q Q 3 Q+ 25 3 3 3 3 3 Q Q Q 26 Q Q Q 5 h Q U 27 3 3 3 Q Q Q Q 3 28 5 7 6 7 5 3 3 3 29 U U 3 U 5 3 3 3 30 Q 3 h 5 U U U U

10

MAGHETIC K-INDICES FOR FEBRUARY AHD MAHCH 1959 - PORT MORESBY

Range for lower limit of K=9 is 300 gammas

Feb K--Indices Mar K--Indices

1 3 3 Q 3 Q Q Q 1 3 U 3 5 5 3 3 2 5 k k 3 3 3 3 2 3 3 Q 1+ 5 3 3 3 3 3 U 3 3 3 3 Q k 3 3 3 3 3 4 3 Q 3 k 3 4 k 3 k k h 5 h 3 Q Q 3 Q Q 3 Q 5 3 U k 3 k U 3 3 5 3 3 3 Q Q Q Q 3 6 3 k k 3 Q Q 3 3 6 3 3 3 Q 3 Q Q Q 7 3 3 3 Q U 3 3 Q 7 Q Q 3 3 3 Q Q+Q+ 8 Q 3 3 Q 1+ Q h 3 8 Q Q 3 + - - Q+Q+-9 k 3 U 3 k Q Q 3 9 Q+Q Q Q 3 Q Q Q

10 3 3 3 Q Q Q Q 3 10 Q Q Q Q Q Q Q Q 11 k k 5 7 U 5 3 U 11 Q 3 3 Q Q Q Q 3 12 3 5 k 3 3 U 3 3 12 3 3 3+- - _ _ _ 13 3 3 Q 3 U U 3 h 13 3 3 Q Q 3 Q Q 3

3 3 k k 6 5 3 k 1U Q 3 Q 3 3 Q Q Q 15 3 3 5 5 5 5 3 Q 15 3 3 Q Q Q Q Q Q 16 U 5 5 3 5 5 16 3 3 3 Q Q Q Q 3 17 k 3 k Q Q Q 3 3 17 Q U 3 Q Q Q Q Q 18 3 3 3 Q Q Q Q U 18 Q 3 3 Q Q Q Q 5 19 3+Q 3 3 3 Q 3 Q 19 Q Q 3 Q Q Q Q Q 20 Q+3 1+ Q Q Q Q Q 20 Q 3 3 Q Q Q Q Q 21 Q Q 3 Q Q Q Q 3 21 Q 3 3 Q Q Q Q 3 22 5 3+- - - - - 22 3 3 3 Q Q Q Q Q 23 _ - 3 5 3 Q Q 3 23 3 4 3 Q Q Q 3 Q 2k Q Q Q Q Q Q Q 3 2U Q Q Q Q Q Q Q 4 25 6 5 7 6 5 6 U U 25 4 5 k 3 4 4 3 4 26 3 3 5 k k U 3 U 26 3 3 h 7 6 5 3 6 27 3 4 3 3 5 5 3 3 27 h 5 6 5 5 5 4 5 28 U 3 3 1+ 5 U 3 U 28 3 1+ 4 4 4 5 5 5

29 3 U U 3 5 3 3 3 3 0 3 U U 3 Q Q Q Q 31 Q Q 3 Q 3 Q 3 4

11

P R I N C I P A L M A G N E T I C S T O R M S A T T O O L A H G I DPRIHa H O V E M B E S

date storm time

sudden commencements act-

iv-ity

max. activity 0 to 9 Ranges

date •begin end type an^illtudes D H Z

act-iv-ity day

3-hr per. K D H Z

h m d h Y Y ' Y Y 27 (2350) 2822 —® - - ras 28 1 , 2 , 3 , 6 35 225 140

30 0247 4

a = not recorded

SUDDEN COMMENCEMENTS AND OTHER PHENOMENA AT ' TOOLANGI DURING NOVEMBER

Sense of Movement

Day Time Type H D Z Remarks h m

Oi 12 25 bs A + + 09 03 17 bs B + + Followed by increase

in activity 10 11 35 bps B + + 13 10 10 pt 17 11 56 bps B + - +

18 13 53 bps B + + 23 12 51 bp B + - + Multiple bay 24 13 14 bps B + +

Multiple bay

27 (23 50) (ssc*) Commencement obscured 30 03 48 ssc C + +

P R I N C I P A L M A G N E T I C S T O R M S AT GNAKGARA DURING NOVEMBER

sudden max.activity

date storm time commencement s act- 1 D to 9 1 Ranges

date begin end type amplitudes iv- 3-hr D H Z ity dav per. K D H Z

h m d h 1 y Y 1 Y Y Oct

29 2348 ssc® -6* +20 -15* ms 31 4 6 H O T 0400

-6* +20 -15* 01 5 6 21 142 175 02 5 , 7 03 7

13 1 1 . . 1502 m 14 1 , 5 , 6 5 17 76 100 27 23(51) 2616 SBC ms 28 1 , 2 , 4 . 7 30 188 202

Commencement otscured during record change (2345-2351)

HOTi: Ko record 0630-2350 on I6th

S N P I E H C O M M E M C E H M R S A N D O T H E R PHENOMENA A T G N A K G A R A D U R I N G NOVEMBER

Day

17 20 27

Time K m

12 10 18 54 23 51

t pt ssc

A A A

Sense of Movenffint H D Z + _ _

Remarks

Record change 2345-2351 start of ssc not recorded

NOTE No record 0630-2350 on l6th

12

PRrWCIPAL MASKBTIC STOHMS AT PORT MORESBY DUBING HOVEMBEE

sudden max. activity storm time commencements act- C ) to ^

date begin end type anplitudes iv- 3-iir D H Z ity day per. K D H Z

—

27 h m d h 235.1 2819 ESC (-2) + 3 1 ( + 2 5 ) ms 28 2 ,4 7

SEC occurred at conclusion of scale value observations

Y Y 13 253 117

SUPDEN COMMEMCEMEKTS AKB OTHER PHEMOMERA AT PORT MORESBY DURING NOVEMBER

Day

1 27

30

Time h m

12 26 23 51

02 48

SZEe

bp SEC

B A

Sense of Movement H D Z + +

+ - +

BSC B + +

Ho record 24th; 0 4 - O 6 I 1

Remarks

Occurred at conclu-sion of scale value observations

H

SOLAR FLARE EFFECT

Day Began h m

26 21 42

Identification uncertain

K K'