96 SUPPLEMENT TO THE HONGKONG GOVT GAZETTE OF 23RD FEB., 1884.
MEAN OF 1880, 1881 AND 1882.
Month. NNNE
NE ENE E ESE SE SSE ន SSW
SW
WSW W wxw
NW NNW
1880-81-82.
January, 3.0 2.0
2.6
3.2 4.01
0.0 1.1
:
1.0
February, 1.2 2.0
2.7
2.3 4.1
2.5
3.8
2.8
2.8
:
:.
00
:
:
March,
2.9 1.9
2.1
3.2 3.6
2.2
2.9
2.6 1.2
1,2
April,
0.4 3.1
1.2
3.5 1.2
3.6
3.4
3.6 3.9
3.1
1.1
May,...
0.9
2.0
1.7
0.9 3.6
8.3
0.9
0.7
3.4
3.4
3.3
0.9
:..
F..
F
:
June,
:
0.5
1.0 4.4
3.4
3.5
1.9 3.7
4.6 1.1
:.
:
3.1
2.2
2.5
2.3
2.0
1.7
0.4
July,.................
1.5
Angust,
1.1 1.5
7883
1.7
0.7
4.9
1.6
4.1
0.7 3.3
1.9
2.2 2.9 2.3
11
:..
0.6
0.7
4.8
1.0
3.8
2.6 8.5
3.2
2.8
0.0 3.5
1.8 2.2 1.5
September,... 3.8 2.1
1.3
3.2 4.4
3.7
2.7
1.5
3.0
2.0
2.5
0.6
1.6 2.4 2.4
October,
2.7 2.2
2.8
4.0 4.8
4.3
0.5
1.9
November,... 2.6 3.5
3.5
3.9 4.2
1.2
December, 4.1 3.0
3.6
3.6 4.0
2.0
:
:
:
:
.:
:
:
1.6
:
:
30
0.7
2.1
:
:
:
Year,
3.7 3.4
3.2
3.6 4.1 3.3 3.5 3.1
3.6
3.6 3.1
3.1 3.0 1.5 3.2 3.5
The following Table exhibits the Mean Force of the Wind, without reference to Direction, during the different months of the year. It appears, that the Force of the Wind is somewhat greater in Autumn than Spring. This is no doubt due to the Typhoons.
The cause of the apparently progressive Mean Annual Force of the Wind, as exhibited at the bottom of the Table, I am unable to trace. It therefore remains to be investigated whether this is connected with the eleven-yearly Sunspot-period, or whether it is due to some other agency :
TABLE IV.
MEAN MONTHLY FORCE OF THE WIND.
YEAR.
MONTH.
ΜΕΑΝ.
1880. 1881.
1882.
January,
2.9
3.2
4.0
3.4
February,
3.5
3.4
4.1
3.7
March,
2.4
3.7
3.8
3.3
April,
3.0
4.2
3.8
3.7
May,
2.5
3.6
3.9
3.3
June,
3.7
3.6
4.0
3.8
July,
2.9
3.7
4.2
3.6
Angust,.
2.7
3.7
3.8
3.4
September,
2.9
3.9
4.6
3.8
October,
3.1
4.5
4.4
4.0
November,
3.0
4.1
4.4
3.8
December,.
3.9
3.7
3.9
3.8
Year,
3.0
3.8
4.1
3.6
Hongkong Observatory, February 12th, 1884.
W. DOBERCK, Government Astronomer.
Printed and Published by NORONHA & Co., Printers to the llongkong Government, Nos. 5, 7, and 9, Zetland Street.