%
f
feiStt-ttSWtll^
COMMONWEALTH DEPARTMENT BUREAU
OF
i•
OF
MINERAL
GEOLOGY
AND
., -•" ' I' „I {Awv ••• ,
AUSTRAtIA,:
NATIONAL
OF
9
DEVELOP>i1E|^f ^ RESOURCES
GEOPHYSICS
GEOPHYSICAL OBSERVATORY
REPORT
VOL. 5
NO 5
MAY 1957
Issued under
the authority Minister
-
: .y
for
of Senator National
The Hon. W. H. Development
Spooner,
DEPARTMENT OF NATIONAL
DEVELOPMENT
;-1ini5rer - SENATOR The H O N . W . H. SPOONER Secretary - H, G,
RAGGA7T
BUREAU OF MINERAL RESOURCES, GEOLOGY AND GEOPHYSICS p. B. NYE - Director J. M, RAYNER - Deputy
Director
This Report was prepared in the Geophysical Section: 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
Subject Contributing
Page
Observatories
Magnetic K-Indices
2 Watheroo Toolangi Macquarie Mawson
Preliminary Montlily Mean Values of the Magnetic Element s
Watheroo Toolangi Macquarie Mawson
3 Island
3 Island i
Principal Magnetic Storms, Sudden Commencements
Watheroo Toolangi
Ionospheric D a t a ,
Median Hoiirly Values Sporadic E. Summary Occiirrence of Intense Sporadic E.
Watheroo
Provisional Summary of Aurorae
Macquarie
5 6
7 7
a &3
Island
Unless otherwise stated a l l times are given i n Greenwich, Mean Time.
The terminology used i n this report i s that accepted byinternational convention. Should further information be req.uired, explanation can be obtained b y applying to:Chief Geophysicist, Biireau of Mineral Resources, Geology and Geophysics, 203 Collins Street, Melbourne, C.1Australia,
1 0 10
C0j\T?RI3UTING- 0BSE2VAT0RIES WATHE300 ?;L4aiCSTIG QBSEcVATORY Geosrapiiic L a t i t u d e Gsor-£ii:etic Latitude
A.?.
SQ'^IS'S
TILLOTT,
O^Dserver-in-Cr-ar-ge.
Longifade Longitude
115°53'2 185.6°
Insti'uinents Mas-iietic Ecuipr.eut
- Askaiiia p a t t e r n Magnetonieter No. 5 0 8 8 1 0 . La CoxiP p a t t e r n QHJi's Nos. 2 9 1 , 2 9 2 , 2 9 3 . La
G O U T ^ j a t t e r n 3B£Z N o . 1 2 0 .
Askaiiia Sar-tli Inductor No. 5 1 1 1 0 8 1 . Ssciienliagen x^iattern D , H , Z , recording varionieters, normal s e n s i t i v i t y , 2Gnari/hour recorder. La Cour pattern D , f I , Z , recording variometers, nor.Tial s e n s i t i v i t y , 3uiclt run. (1 SOim/iicur) recorder, Askania Esciienh-agen tj/pe K variorrieter .-/itii v i s u a l recorder 2Crjri/'>iour, Icnospiier-io Soiiip"=nt - C . S . I . R . 0. p a t t e r n i - l c H c / s S v e e p t i M 2 niinutss. TOOLAI-Tai NLAGIZETIC OBSBEVATORY I . B . Geo.-ra-hic L a t i t u d e GeorJigr-etic L a t i t u d e
S^/SHISGKAl-;,
3?°32'S -ub. 7=
Longitude Lor^itude
ODserver-in-Charge, 1U5°28'S 220.8°
Instruments P.uslia pattern Magnetometer Ko.ii-613. La Gour pattern QlSis Nos. 2 8 6 , 2 8 9 , 2 9 G . Scri"ilzs Eartli Inductor iSo.li-9. La Ccur p a t t e r n 3}.1Z Ko. 1 1 9 . La Cour p a t t e r n D , K , Z , recording variometers, 3ensitivit.7 15-"iiV'^-our recorder. ;iftCSlJAgIE I3LAES SIAGiIgTIC OBSERVATORY J . R. aeo~r2-);--ic L a t i t u d e Geo:r.ar:ietic L a t i t u d e
54°30'S -61 °
normal
CLEARY, Observer-in-Charge.
Longitude 1 5 8 ° 5 7 ' E Longitude 2^.3"
Instruments La Cour p a t t e r n QHMs K o s . 1 7 7 , 1 7 8 , 1 7 9 . La Cour p a t t e r n BMZ H o . 6 t . Ke'.T p a t t e r n Kagnetoiseter Ho. 1 5 8 . La Cour p a t t e r n D , H , Z , recording varloraeters IOT? sensitivity recorder. MAWSOM MAOKETIC OBSEBVATCKY Geograpiilc Latitude Geor.agnetic Latitude
J.D.
PIMN,
67''35.7'S -73.1°
Cfbserver-ln-Charge.
Longitude S a - S ^ O ' E Longitude 103.^+°
Instmatents La Cour pattern. QHMs Kos. 3 0 C , 3 0 1 , 3 0 2 . La Cour p a t t e r n BMZ K o . 6 2 . E l l i o t t Magnetometer. La Cour pattern D , H , Z , recording varioiaeters, s e n s i t i v i t y i S m / h o u r recorder.
low
MAGNETIC K-IICDICE3F0B I/AY - "'.'AT:£S?0C Range for lo'.'fer liirdt cf K-•Indices
Day
1 2 3 U
5 6 7
8
9
10
11 12 13 -1 J| 15
2 1 0 3 3
2
-1
2 2
2 1
16
r-
16
2
-l 7 '
y
20
21
22 23 21+ 25
26
27 28
29 30 31
i;
-1
2 1
2 1
2
2 1 1 2
2 2 1 0 1 u
3
2 1
•1
2 1 2
2 2 2
p
0
i
3
3
C
3 2
3
2
2
2
u
3
3 3
2 2
A
A
-!
A
1
-1
-1
Q
c
J r A
1
2
2
C 0
^
2
0
i
2
^
2
2
1 3
2
3
3
2
2
2
A
2
d. cL
2 3 3
2 ^
1 2
2 2 a
3
1 2
3 1
3
n
3
1
J
2 2 -•i
3 J) ^
^
2 5
2 2 1
5 2
2 J, X 2 3 3
1
cL
C 3 d
2
3
A "Z.
-'s
2 3 5 J
c 2 2
i
_
::
3
2
2
J J
3 0
2 3
A
3 2
3
2C 'C
2
2
J -• • c.
u
z
2
i -10
2 3
3
0
0
2
-I
25
-1-
A J
PRELIMINARY ttEAW VALUES OF THE MAGKSTIG, WATHEROO - D e c l i n a t i o n Horizontal Intensity Vertical Intensity
7
0 22
3
2
5
i
A ^ • (
2 0
-f
A '
2 1
-j _
2
-1
2
A
3
BLBSJ-TTS ?0R ItlAY
2° y . 8 '
2I4.8I4.5
-52230
Tfest,
ganrnas, ga-Tmas.
MAGMETIC K-IMDICES FOE MAY - TOOLAHGI Range for lower limit of K=9 is 500 gammas Day
1
2 3 k 5 6 7 8 9 10 11 12 13 ^k 15 16 17 18 19 20 21 22 23
2k
25 26 27 28 29 30 31
K-Indices
2 3 5 k
2 3 2 1 + 3 3 2 3 2 1 2 3 3 2 .1 2
3 2 3 k
3 2 3 1 3 3 3 2 3 2 3 2 2 3
k 1 k 2 1 2 3 3 2 2 2 2 1 3
2 3 3 2 4 2 3 2 3 2
3 1 2 2 3 3 2 1 2 2
3
3
3
k 1
3 2 1 2
2 2 2
^
3 2 2
2
1 2 0
3 2 2 3
1 1 2 3
2 3 2 k 2
3 5
2
2 3 3
5
3 3 3 3 2
3 k 2
2 2 5 2
K-Sum
2 2 1 2
1 ^ 1 1 2 2 3 2 2 2 2 2 0 1 0 1 1 3 3
+ 1 1 2 k 5 5 3 3 2 2 1 1 1 1 2 3 2 2 2 3 3 3 2 2 0 2 3 1 1 3 1 1 2 3 2 2 1 1 1 1 0 2 1 2 3 3 3 3 2 1 2 3 3 3 3 2 3
3 3 3 3
1 1 1 2 1 3 2 2 1 1 1 3 3 2 2 3 1 + 1 + 2 3 3 1 1 3 3 3 0 2 2 2 1 2 1 + 4 1 + 3 0 - 1 1 3
19
19 22 17 13 18 20 20 23 13 11+ 15 20 11 13 12 19 13 19 23 23 1i| 17 17 21 30 18 18 15 28 13
PRELIMINARY MEAN VALUES OF THE MAGHETIC ELEMEIITS FOB MAY TOOLAHGI - Declination 1 0 ° 0 7 . 0 ' east. Horizontal I n t e n s i t y 22720 gammas. Vertical Intensity -56i+30 gammas.
MAGHETIG K-INDICES FOB MAY - MAGQUABIE ISLAItt)
Range f o r lower l i m i t of K=9 i s "1500 garamas
Day 1
2 3
k
5 6 7 8 9
10
K-Indices 3
3 2 3 3 2 I 4 1 1 3 5
31
2 1 2 5 . 2 3 4 5 U
U
U
1
5 0 1 1
3
U
k
k
U
-1
2
U
2
1 3
1 1 1 1 0 1 1 3 3 2 5 3 1 2
27
19 24 25 12 18
20
1 3 2 2
1 0 0 0
0 0 2 1
01).
17 18 19 20 21 22 25 26 27 28 29 30
6
30 15
3 1 3 1 1
23 24
5
5 U 2 2 3 1 1 2
11 12 13 1U 15
16
3
1 3 2 6 2 1 3 5 1 2 3 5
K-Sum
0 0 U 0 1
0 2 2 1 0 0 3 3 1 0 0 1 2-1 1
1 2 3 0 1 1 0 1 1 1 1 2
0 2 5
3 2 0 1 1 1 3 U 3
2
5
2 1 1
1 0 0 1 2 2 3 3 5 1 1 0 0 0 2
k
k
3 3 2 0 1 3
k
5 0
0 1 2 5
1 + 2 3 3 3 4 3 3 3 1 1 2 1 1 2 2 2 3
3
6 6 3 3 1
5
3 4 2 2
k
4 0 2 5 5 4 3 3 5
3
3
2
3
1
08 07 25 OU 08
11 08 20 28
0 4
0 0 3 1
03 18
2 6 0 3 3 6
1 2 3 3 0 1 0 2 0 1 5 3
22 33 17 15 12 31
3 2 - -
0 0 0 1
12
+ Doubtful.
PRELIMINARY MEAS YALPES OF THE MAGHETIG ELEMENTS FOR MAY MAGQUARIE ISLAND - D e c l i n a t i o n 2 5 ° 0 4 . 0 ' east. Horizontal Intensity 13312 gaiimias. Vertical Intensity -64490 aammas.
iliAGNETIC K-IKDIC3S FOR MAY - MASSON Sange for lov,-er limit of K=9 is "1500 garniiias K-Indices 5 2 •z
J u
Li
5 c
C, n
7 5 9 -1 ^ 1 i2 13
) ,
i5 16 17 18 19 20 21 22 23 2U 25 27 28 25 30 31
6 ti 5 L. 5 h
6
•2
-«
!i Li. c
6 3 u •k 5
5 5 0 ),- 5 H •3 ^ J -z.
3 u
U 5 U
J
u 2
^
5
2 5 3 H-
6 U
6
k
3 P 3 U 3 1,+ 2 Lj. U c; •2 3 u c; 3 3 2 P 1 P A 3 3 2 2 2 -1 1 2 4 ? 1 3 2 6 3 5 3 3 2 3 3 O "i?
5 1 H3 2 U Li- ^ 4 3
h h
3 3 3 5 1
4 2 3 p 3 2 3 3 2 1 1 2 -1 9 Q 1 1 2 4 3 2 2 2 2 3 3 2 3 1
K-Suin 2 2
2 5 5 5 5 5 1 7
3 1 h 2 2 2 6 5 2 3 2 3 r O 2 ^ -1 5 6 2 0 3 6 5 1, 1 2 5 2 1 5 4 2 3 3 2 ^1 1+ 3 4 5 Lj. 5 ^ c; 3 5 2 -1 •1 L;. 4 2 2 u 2 1 6 6 o 4 2 ii 4 3 1 5 2 2 5 6 1 3 h
32 25 33 32 27 29 32 26 30 2k
16 35 22 20 15 24 21 27 33 32 19 29 19 27 38 29 2k
26 36 21
PRSLIMIHAaY M3AI': VALUES 0? THE MAGI-iETIC ELEMEtJTS FOB t;[AY MA'.VSOE -
Will te published v.'hen availalDle.
PRINCIPAL MAC-I'IETIC STCE;,!S AT •.VATHESOO liL'RIITG- LtAY Began at d h K 30 08 22
Bnded at d h 3-'i
Intensity ?;-Indez
01
SUDUEN G0MMEITC3MEIITS AT ;7ATH3K00 Day
Time
5
z>h
Polar Sadden CcT":eno3!:;ent
i7
^ Q
Pclai- Suidsn
30
08 22
Stcrn: S'J-dden Go™
;enie;v:ent
PRINCIPAL ?,;A3iraTIC STORfilS AT TOOLAI'GI LURING :.:Ai 3e£_an at d h m
Ended at d h
g-Indax
T'.T i 1
SUDDEN COMMSNCSjaBNTS AT TOOLANai Day 30
Time h m 08 22
HAY
T,>-pe Stori- S'lidden Ccr.-_::encer:ent
lONOSPHEEIC DATA - WATHEEOO
MEDIAN HOURLY VALUES 1 20°E Mean Time
foE2 0.1 Mc/s 53-26 51 -21 50-19 ij-5-19 142-18 ii2-2l 14-0-20 65-21 9ij--15 115-214118-22 120-27 119-30 11 8-3C 118-25 116-26 115-19 U115- 9
00 01 02 03
Ok
05 06 07 08 09 10 11 12 13
15 16 17 18 19 20 21 22 23
+- k
92-12 70-214 61 -28 58-26 58-21
U + E 0
(M3Q00)F2 300-1 5 300-1 2 290-1 2 295-1^4 300-1 2 300-1 7 305-20 320-1 8 350-1 335-22 335-1 7 325-1 8 31 0-22 305-23 305-21 305-21 31 0-1 8 U295- 5 + - 2 U305- 8 31 5-1 6 305-18 305-1 8 295-12
k
hpE2 Km
h'F2 Km
320-19 330-11 330-1 2 320-15 320-13 320-15 31 0-19 290-20 260-15 + - 3 290-23 + — 1 285-18 + - 2 300-1 8 310-23 U250- 7 + - 3 320-23 320-21 U250- 5 + 320-20 31 0-1 8 U330- 5 + - 2 U300- 9 305-16 305-1 8 320-1 9 330-13
foE1 (M3000)F1 0.1 Mc/s
- 3 -1- -1 -1- -2 1+8- 7 -1- -3 5 + - ij+
-1- -3 + - 1 + - 2 1+05- 7 + - 3 koo- 5 + -
S i g n i f i e s median is doubtful. S i g n i f i e s i n s u f f i c i e n t values to compute a mediar. S i g n i f i e s median less than 1 . 0 Mc/s. S i g n i f i e s that at least half the values are less than the corresponding values of foE.
IONOSPHERIC DATA - WATHEROO
MEDIAtJ HOUBLY VALUES
h'F Km
foE 0.01 Mc/s
h'E Km
250-Pv
250-
214-0-23 220-25 220-21 220-1 9
230-21
220-27 220-26 220-26 220-28 215-30 220-30
H22O-27 220-28 225-28 225-28
210-30
1 65-1 8 150-1 7 260-26 110-25 31 5-23 3i+0-1 8 350-19
100-22 1 00-1 8 1 00-1 9
370-22 1 00-23 105-25 100-21+ 330-22 100-25 290-21 105-22
365-2i+ 355-23 220-1 3
210-28 220-28 225-28 2U0-30
1 20-1 3
foEs fbEs 0«01 Mc/s 0,01 Mc/s E -28 E -27 E -27 E -26 E -26 E -22 E -20 0 -20 0 -28 350-26 380-26 390-28 385-29 380-30 375-26 350-27 320-28
230-27 200-30 E -30 E -30 E -30
E -30 E -28
2I1.O-26
U + E 0
E E E E E E S 0 0
-28
-27 -27 -26 -26
-22 -20 -20 -28
320-26
350-26 370-25 375-29 375-29
365-26
3i+0-27 290-28 0 -25
1 i+O-30 E -30 E -30 E -30. E -30 E -27
h'Es Km
f min 0.01 Mc/s
120° Mean Tim.e
100- 8 + - 3 100- 9
110-27 115-25
01
+ - 4 100- 8
11 0-2i| 110-20 115-18 125-18
03 04 05 06 07 08 09 10 11 12 13 14 15
100- 7 100- 7 100- 5
110-15 11 0-21 11 0-20 11 0-20
110-26
110-22 110-20 110-19 110-20 1 00-1 9 1 00-16 100- 9 100- 6 + - 2 100- 7
+ - 1+
110-26 110-22
IUO-25
150-25 175-25 160-26 205-28 175-29
170-25 170-27
150-28 114-0-27 145-28 1U5-26 140-27
11+0-27 140-28 115-26
S i g n i f i e s median i s doubtful. S i g n i f i e s i n s u f f i c i e n t values to compute a median. S i g n i f i e s median leas than 1 . 0 Mc/s. S i g n i f i e s that at least h a l f the values are l e s s than the corresponding values of foE.
00 02
16
17 18 19 20 21 22 23
^ 0
IOMOSPHEKIG DATA - WATKEBOO
SUMMARY SPOaADIC E. •120° Mean Time 00 01 02 03 OKUC 07 06 09 /
11 -13 1u "! 5 16 17 16
19
20 21 22 23
Percentage of time ao ove 5 Mc/s 7 Mc/s 3 Mc/s 0 0 0 0 0 L' 0 0 0 0 0 0 0 0 0 ll 0 0 0 0 0 0 0
G S i g n i f i e s fEs
0 0 0 0 0 0 0 vj J 0 0 4 3 7 0 0 U 0 0 0 17 0 0 0
25 33 22 75 50 29 43 0 33 1 00 100 100 100 1 00 100 100 90 53 63 67 50 100 57 50
Median in Mc/s E E E E E E g P 0 3.50 3.60 3.90 3.85 3.80 3.75 3.50 3.20 2,30 2,00 E E E E E
No. of Observation! 8 3 9 K f 9 ? 1C6 7 1^ 26 13G 26 6G 26 ( 5G 26 7A) 29 30 6CT 26 6G) 27 ( 8G) 26 8G 25 ( 6G) 16 9 6 2 7 ), M-
(
(
oEsr3. 0 Mc/s.
0 S i g n i f i e s that at least half the values are less than the corresponding values of foE, E S i g n i f i e s median less than 1 . 0 Mc/s.
OCCUSBEHCE OF I M S H S E SPORADIC E.
At no time during May was blanlceted "by-Sporadic E,
the P2 layer
totally
PROVisiOi-tAL 3-.;;,;i;A2Y g f a u h c k a e Reported by and .•.•.•.c-ishsd thrctigr. the orjirte! Australian Katlor.al Aiitarctic Hesearch Ir/rA
:A:;;JA?.IB Day
Began "h
1+
ni
First Seen ll
ISLAHI:
Jeomagnetic :.r,titude 1-f Tiine
\
08 15
Intensity and ?crT::
IT.
^•
'i
6
C9 3 ;
- -
" - 'iS
9
09 ^ 3
; -
^
Last Seen
3nded
r
"I
2 1) " HA ^ D
" 5 -G ••; ^ c 30
-iO 20
25 26 27 30
"
Aurora se^i: .
eictensive observations not possible
