Station: Royal Observatory, Hongkong
Height above M.S.L. 109 ft.
Barometer at M.S.L. and reduced to gravity at latitude 45°.
Air Temperature.
1917. Month of December.
Tension of Vapour. Relative Humidity. Wind. Direction and Force. Amount of Cloud.
1917. Observation times: 7h, 13h, 21h.
Long. 114° 36′ 41.8″ E. Lat. 22° 18′ 13.2″ N.
Rainfall. Remarks.
| Day | Barometer 7h | Barometer 13h | Barometer 21h | Temp 7h | Temp 13h | Temp 21h | Max | Min | Vapour Tension | Humidity | Wind (Dir/Force) | Cloud | Rainfall (in) | Remarks |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 30.077 | 29.998 | 30.006 | 64.0 | 70.2 | 64.3 | 71.7 | 63.1 | 0.482 | 75 | 8/7, 9/5 | 4.4 | ... | *** |
| 2 | 30.018 | 30.004 | 30.036 | 64.3 | 69.5 | 64.7 | ... | ... | ... | ... | ... | ... | ... | ... |
| 3 | 30.061 | 30.068 | 30.107 | 63.5 | 68.1 | ... | ... | ... | ... | ... | ... | ... | ... | ... |
| ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... |
| 31 | 30.193 | 30.137 | 30.137 | 48.6 | 55.6 | 51.3 | 56.4 | 46.9 | 0.190 | 48 | ... | 1.7 | ... | ... |
Monthly Means
| Barometer 7h | Barometer 13h | Barometer 21h | Temp 7h | Temp 13h | Temp 21h | Max Mean | Min Mean | Vapour Mean | Hum Mean | Wind Force Means | Cloud Means | Rainfall Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 30.112 | 30.077 | 30.098 | 56.3 | 62.5 | 58.9 | 63.7 | 55.2 | 0.318 | 70 | 5.5, 10.7, 8.8 | 13.5, 6.3, 10.7 | 1.140 |
In reducing the barometer readings to gravity at latitude 45°, a constant correction of −0.055 inch has been applied.
(Zb 12)
322
Station: Royal Observatory, Hongkong.
Height above M.S.L. 109 ft.
Barometer at M.S.L. and
Day.
reduced to gravity at
latitude 45°.
Air Temperature.
1917.
Month of December.
Tension of
Vapour.
Relative
Humidity.
Wind.
Direction and Force.
Amount of
Cloud.
1917.
7th
I p.
9 P.
7 0.
1 p.
9 p.
Max.
Min.
Daily Daily Means. Moans.
Daily
7th
JP.
9 P. Moans.
Long. 7 36 41*8 E.
Lat. 22° 18' 13.2" N.
Rainfall.
Remarks.
Dec.
Бря
O
。
in.
Dir. Vel. Dir. Vol. Dir. Vel. (0-10.)|
points[-u.p.tz. points.jm.p.1. [points [m.p b.
Ind.
1
30,077
29.998
30.006
64.0
70.2
64-3
71.7
63.1
0.482
75
8 7 9 5
4·4
***
2
.018
30.004
.036
64.3
69.5
64-7
3
.061
.068
.107
63.5
68.1
.139
.132
.164
62.3
65.0
63.3
6514 69.6
70.3
61.5
-513
10
1Q
13 10 9
4.6
63.0
.466
73
9
2 | 10 25 6 32
0.6
65.5
62.3
-433
73
7 29 7 32 7 20
5-3
.178
.142
61.3
69.5
63.5
69.7
61.0
·43+
8 12 10 10
8
9
Dew.
Ilaze.
.198
.160
.242
58.1
62.5
35.9
63.3
54-3
.234
32
+ 32 17
32
15
.227
.141
.132
52.3
59-5
55.4
60.6
51.9
.110
25
2
32
15
8
.119
,062
.ogo
52.1
59.9 54.6
61.1
51.5
.134
2
f I
LAND N
5-5
+
9
.094
.049
.077
52.4
66.7
58.7
68.9
51.6
.194
38
16
3.3
10
.045
.024
.021
55.0
65.1 62.5
66.4
54.8
.288
४
53
N
29.942
29.916
29.909
60-3
66.1
64.8
67.8
60.2
412
70
:ས
25
8 26
2.4
22 10 22 8 12 8.0
Haze, Dew.
Mist.
12
.885
.892
.890
65.0
67.6
66.2
68.2
64.6
.460
71
20
24 7
13
.888
.873
.930
65.7
64.6
66.z
66.8 64.1
.380
92
18
10
8 23
19 3
9.5 10.0
Mist.
0.735
Slight fog, Mist.
14
.974
30.019
30.105
62.8
62.3
58.7
66.1
55.8
•458
83
14 1
8 32
16 10.0
0.365
15
30.151
.130
.140
544
58.1
58.3
59.1
54.0
.314
68
12 32 7 4
10.0
0.040
16
.073
,030
.027
57.0
60,9
60.5
62.0
36.7
.360
71
16 8 17
18
9.0.
H
17
.040
.043
.092
59.4
66.0
62.4
66.4
59.3
.403
72
7
12 22 5 32
8
7.9
18
.180
.157
.186
54.7 63.6
60.8
63.9
54.4
-347
68
2
7 10 TI
15
3.2
19
.239
169
.156
56.8
60.9
59.8
62.1
58.1
.372
72
16
23
19
6.0
20
.156
.070
2055
57.8
62.3
60.0
63.4
57.8
-373
71
13
8 16 7 16 4.7
21
.058
29.995
.014
59.7
68.6
62.5 69.5
58.6
.438
2
14
IS
6.6
Lunar corona.
.091
30.105
.142 50.3
60.7
57.3
62.9
55.0
.367
9
5.8
23
.193
.168
.224
49-7
58.5
53.2
59.8
49.5
.245
39
24
.225
.141
.159
47.2
58.6
53.3
59.7
47.1
.203
50
en en
32
32 10 32
3-3
31
22 6
2
0.5
25 *165
.108
.107
50.3
59.5
55.3
61.0
26
.168
.130
.138
49.9 58.5
27
-174
.137
.150
49.2
58.8 53.8
54.6 59-7
49.7
.206
2
10
49.1
.171
40
32
5
10
5
3
60.2
48.8
.178
43
1
[2
11 10
7
4
0.3
28
.138 .099
.121
51.7
57-7
53.8.
58.6
50.7
.242
57
2
10 16
19
.178
.136 .157 49.8 56.7 52.9
57.5
49.2
.130
2
12
I
30
.212
.181
.180 48.2 56.2 52.5
57.6
47-9
.110
28
1
16
31
.193
.137
.137
48.6
55.6
51.3
56.4
46.9
.190 48
3
NO LA
1.7
14
5 5
2.7
*
5
4
3.7
Suins.
Means 30.112
30.077 30.098
56.3
62.5
58.9
63.7
55.2
0.318 бо
5.5 10.7 8.8 13.5 6.3 10.7
4.3
1.140
In reducing the barometer readings to gravity at latitude 45o, a constant correction of −0·055 inch has been applied.
( Zb 12 )
322
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