GEOPHYSICAL OBSERVATORY REPORT

Transcription

1 ^ ^ ^ ^ J w r r LIBRA Y COMMONWEALTH OF AUSTRALIA DEPARTMENT OF NATIONAL BUREAU OF MINERAL RESOUftCT^'^' GEOLOGY AND GEOPHYSICS GEOPHYSICAL OBSERVATORY REPORT VOL 8 NO 7 JULY 1960 Issued under the authority of Senator The Hon. W. H. Spooner, Minister for National Development 3Mk S55a.3^9.5 A U S. «copy 2

2 DEPARTMENT OF NATIONAL DEVELOPMENT Minister-SENATOR The HON. W. H. SPOONER Secretary-H. G. RAGGATT BUREAU OF MINERAL RESOURCES, GEOLOGY AND GEOPHYSICS J. M. RAYNER - Director This Report was prepared in the Geophysical Branch : R. F. THYER - Chief Geophysicist J. C. DOOLEY - Supervising Geophysicist

3 C O H T E H T S Subject page Contributing O'bsei'vatorl'^E gnetlc K-indioes # Solar Flare Effect Principal Magnetic Storms Sudden Commencements and Other Phenomena Toolangi Gnangara Macguarie Island Mawson Wilkes Port Moresby- Port Moresby Toolangi Gnangara Port Moresby 2,3&k 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 Resources, Geology & Geophysics, 203 Collins Street, MELBOURME. CI. AUSTRALIA.

4 CONTRIBUTING OBSERVATORIES TOOLANGI MAGNETIC OBSERVATORY C.A. van der Waal. Otserver in Charge Geographic Latitude 37 32'S Longitude 1i+5"28'E Geomagnetic Latitude Longitude Instruments Euska magnetometer No.4813 Schulze earthinductor No.49 La Cour QHMs Nos.288, La Cour BMZ No.119 La Cour D, H & Z recording variometers Sensitivity : Recording speed D 1.16 min/mm H 4.6 Y/mm Z 4.4 Y/mm 15 mm/hour GNANGARA MAGNETIC OBSERVATORY P.M. McGregor. Observer in Charge Geographic Latitude 31 47'S Longitude 'E Geomagnetic Latitude Longitude Instruments C.I.W. field magnetometer and theodolite earthinductor No.7 Askania magnetometer No Askania earthinductor No La Cour QHMs No.291, 292, 293 La Cour BMZ No.120 La Cour D, H & Z recording variometers Standard Instrument : Sensitivity D 0. 9 mln/mm H 3.2 Y/mm Recording speed Rapid-run instr\iment: Sensitivity Recording speed ; Askania (Eschenhagen type) H variometer Sensitivity i Recording speed ; Z 5.4 Y/mm 15 mm/hour D 1.0 mln/mm H 4.5 Y/mm Z 1.5 Y/mm 180 mm/hour with visual recorder 3 Y/mm 20 mm/hour

5 CONTRIBUTING OBSERVATORIES MACQUARIE ISLAND MAGIMETIC OBSERVATORY C. van Erkelena. Ol3sepver In Charge Geographic Latitude 5U 30'S Longitude 'E Geomagnetic Latitude Longitude 2li3.0 Instruments La Cour QHMs Hos. 177, 178, 179 La Cour BMZ So.6U Kew pattern magnetometer No.158 La Cour D, H & Z recording variometers Sensitivity : D 0.9 min/mm H 12.5 Y/mm Z 1 1 Y/mm Recording speed : 15 mm/hour MAWSOK MAGMETIC OBSERVATORY R.W. Merrick. Observer in Charge Geographic Latitude 67 36'S Longitude 62 53'E Geomagnetic Latitude Longitude Instruments La Cour QHMs Nos.300, 301, 302 La Cour BMZ Ko.52 la Cour D, H & Z recording variometers Sensitivity : D 0.8 min/mm H 9.9 Y/mm Z Y/mm Recording speed : 15 mm/hour Bar fluxmeter magnetometer N-S, E-W and vertical components

6 CONTRIBUTING OBSERVATORIES WILKES MAGNETIC OBSERVATORY W.K. Jones. Otserver in Charge Geographic Latitude 66 15'S Longitude 'E Geomagnetic Latitude Longitude Instruments C.I.W. field magnetometer and theodolite earthinductor No.28 La Cour QHMs Nos.U92, US3, La Cour BMZ No.236 Kuska D, H & Z recording variometers Standard instrument : Sensitivity D 11.3 min/mm H Y/mm Recording speed Rapid-run instrument: Sensitivity Recording speed Z 2h. 1 Y/mm 20 mm/hour D 1.2 min/mm H 5.2 Y/mm Z 5. 7 Y/mm 2k0 mm/hour PORT MORESBY MAGNETIC OBSERVATORY J.A. Brooks. Observer in Charge Geographic Latitude 9 2i -'S Longitude 1l4.7 09'E Geomagnetic Latitude Longitude Instruments La Cour QHMs Nos.187, 188, 189 La Cour BMZ No. 68 Askania declinometer No Askania earthinductor No C.I.W. field magnetometer and portable earthinductor Ho.1i La Cour D, H & Z recording variometers Standard instrument Rapid-run instrxment Sensitivity Recording speed Sensitivity Recording speed D 0.9 min/mm H 5.6 Y/mm Z 7.2 Y/mm 15 mm/hour D 0.6 min/mm H 1.8 Y/mm Z 3.0 Y/mm 180 mm/hour

7 MAGNETIC K-IMDICES FOB JULY -MACQUABIEISLAKD Range for lower limit of K=9 is 500 gammas Day K- Indices K-Sum k k k k U 1 k 2 k 3 k 3 k k h 5 6 k k k i k , k ^ 2 ^ k k k 3 5 k k k

8 MAGl-IETIC K-INDICES FOB JULY - GHAMGARA Range for lower limit of K=9 is 350 gammas Day K- Indices K-Sum k k k _ U 5 U k k h 5 h k k 3 3 k k k l k k k k k k h k h h

9 MAGNETIC K-IMDICES FOB JULY - MACQUABIE ISLAKD Range for lower limit of K=9 is 1500 gammas Day K--Indices K-Sum k U 5 k k U 20 U 3 3 k k k Oil k k h h k h h5 17 k k k U h k 1 1 U k U U 5 i h U k h 1 35

10 MAGNETIC K-IKDICES FOR JULY - MAWSOM Range for lower limit of K=9 is 1500 gammas Day K- Indices K-Sum h k k k k k k U k k 11 5 k k h k i4 k il- h k k 5 k 3k 15 3 k U k ka i k k k U 6 6 3k J k i+ h U 27 2k 5 U k k k U h , h 2 3k k 6 k 7 kh

11 MAGNETIC K-IMDICES FOB JULY -MACQUABIEISLAKD Range for lower limit of K=9 is 2500 garnmas Day K--Indices K-Sum 1 3 k k h ^^ i u 5 k i k k U k k U h k Ik lii k k 3 k 1 k 2 2k 31 k U 2 2k

12 10 MAGNETIC K-IHDICES FOB JUNE - POET MORESBY Range for lower limit of K=9 is 300 gammas Day K- Indices k h Q 3 Q 2 3 Q 3 3 Q Q Q Q 3 Q Q Q 3 Q Q Q 3 k k k Q ^ 5 3 U Q Q 3 Q U Q Q Q Q Q U 3 Q Q Q Q Q Q Q Q Q 1 ^ 3 Q 3 Q Q Q Q Q ^ Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q 3 15 Q Q k 3 3 Q Q Q Q Q Q Q Q Q Q Q 3 Q Q Q Q 19 3 U Q Q Q 20 3 Q Q+ - 3 h U Q 3 22 k Q Q Q Q k Q Q 3 Q 3 2U Q Q Q Q 3 3 U U 3 3 Q Q h Q k h h 29 3 if i4 3 Q Q k k Q U k k

13 11 PRIMCIPAL MAGNETIC STOKMS AT TOOLAHGI DDRIMG JULY sudden storm time commencementb date begin end type amplitudes D H Z ^k ssc* ,7 4 max. activity act- 0 to 9 Ranges iv- ity day 3-hr per. K D H Z 6 ko SUDPEN COMMENCEMSIHTS AM) OTHEB PHENOMENA AT TOOLAHGI DUBING JULY Sense of 1 Movement Time Type H D Z h m si B BSC* B + +« si B si A bp B bp B bp B Remarks bps? PRINCIPAL MAGNETIC STORMS AT GNANGABA DURING JULY sudden storm time comj mencements date begin end type amplitudes D H Z max.activity act- 0 to 9 Ranges iv- ity day 3-hr per. K D H Z ssc^ -1* +2^ -5 15, 4,6,7, SUDDEN COMMENCEMKNTS AND OTHER PHENOMENA AT GHANGARA DURING JULY Sense of Movement Day Time Type H D Z h m B BSC* A Si A bps A b A pt B bp A bp A b B b B b A _ pt B bp B + - Remarks 20 mins. 1 hr 53 min.

14 12 PRIMCIPAL MAGHETIC STORMS AT PORT MORESBY DURING JUKE sudden max,activity storm, time com mencements act- 0 to 9 Range s late begin end type ampli tude s iv- ity day 3-hr per. K D H Z D H Z hradh ' Y Y ' Y Y ssc h3 m 04 2, I4.5 28rl4- ssc m 2? 1, SUPDEW COMMEHCEMEM'S AMD OTHER PHEMOMEWA AT PORT MORESBY DURIMG JTINE OU Time h m U ssc A pt C pt B "bps C pt C ssc A ssc * C ssc Sense of Movement H D Z Remarks 95 mins 35 mins 7 mins MO RECORD 20th:- l6h - 21st: h SOLAR ELARE EFFECT Day Began K K' h m Ionospheric confirmation from Canberra