In the following table are given the number of times and number of hours the local signals were hoisted in each of the years 1923-1927:-
Red Signals Black Signals Bombs Year Number of times Number of hours displayed Number of times Number of hours displayed Number of times fired 1923 11 181 00 8 252 2 1924 10 186 4 85 1925 16 128 3 57 5 1926 10:00 50 4 103 1 1927 169 4 61 1The figures in the above table include the number of hours that night signals, corresponding to the day signals, were hoisted.
The red signal indicates that a depression or typhoon exists which may possibly cause a gale at Hong Kong within 24 hours. The black signals indicate that a gale is expected at Hong Kong.
Three bombs fired at intervals of 10 seconds indicate that wind of typhoon force is anticipated.
Arrangements were made early in the year for the more rapid dissemination of typhoon warnings by telephone. The Observatory now warns 6 Stations, 3 of which are distributing Stations. Of these one warns 7 stations, 3 of which are distributing stations. Of the latter, one warns 11 stations, 2 of which are distributing stations. In all 86 stations or officials are warned.
VI.---METEOROLOGICAL OBSERVATIONS FROM SHIPS, TREATY PORTS, &c.
Logs received. In addition to meteorological registers kept at about 40 stations in China, meteorological logs were received from 169 ships operating in the Far East. These logs, representing 7,221 days' observations have been utilised for amplifying the weather maps and verifying typhoon tracks. The corresponding figures for the year 1926 were 230 and 8,680.
Comparison of Barometers.-The corrections to ships' barometers are usually obtained by comparing their readings while at Hong Kong with those of the Observatory Standard. Occasionally ship captains bring their barometers to the Observatory to be compared with the Observatory Standard.
- F 12
In the following table are given the number of times and number of hours the local signals were hoisted in each of the years 1923-1927:-
Red Signals.
Year.
Number of times.
Number of hours
displayed.
Black Signals.
Number of times.
Number
displayed.
Bombs.
Number
of hours
of times
fired.
1923
I I
181
00
8
252
2
1924
ΙΟ
186
4
85
1925 1926 1927
1.6 10:00
5
128
3
57
5
50
4
103
I
169
4
61
I
The figures in the above table include the number of hours that night signals, corresponding to the day signals, were hoisted.
The red signal indicates that a depression or typhoon exists which may possibly cause a gale at Hong Kong within 24 hours. The black signals indicate that a gale is expected at Hong Kong.
Three bombs fired at intervals of 10 seconds indicate that wind of typhoon force is anticipated.
Arrangements were made early in the year for the more rapid dissemination of typhoon warnings by telephone. The Observatory now warns 6 Stations, 3 of which are distributing Stations. Of these one warns 7 stations, 3 of which are dis- tributing stations. Of the latter, one warns 11 stations, 2 of which are distributing stations. In all 86 stations or officials are warned.
VI.---METEOROLOGICAL OBSERVATIONS FROM SHIPS, TREATY PORTS, &c.
Logs received. In addition to meteorological registers kept at about 40 stations in China, meteorological logs were received from 169 ships operating in the Far East. These logs, represent- ing 7,221 days' observations have been utilised for amplifying the weather maps and verifying typhoon tracks. The corres- ponding figures for the year 1926 were 230 and 8,680.
Comparison of Barometers.-The corrections to ships' barometers are usually obtained by comparing their readings while at Hong Kong with those of the Observatory Standard. Occasionally ship captains bring their barometers to the Observa- tory to be compared with the Observatory Standard.
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