Station: Royal Observatory, Hongkong
Height above M.S.L.: 109 ft
Barometer at M.S.L. and reduced to gravity at latitude 45°
Longitude: 7° 36′ 41.8″ E
Latitude: 22° 18′ 13.2″ N
| Parameter | 7 h | 13 h | 21 h | Max | Min | Mean |
|---|---|---|---|---|---|---|
| Barometer (in) | 29.728 | 29.729 | 29.733 | — | — | — |
| Air Temperature (°F) | 80.7 | 84.2 | 80.9 | 86.6 | 78.4 | — |
| Tension of Vapour (in) | — | — | — | — | — | 0.899 |
| Relative Humidity (%) | — | — | — | — | — | 83 |
| Wind Direction (points) | 19.6 | 7.3 | 20.7 | — | — | — |
| Wind Velocity (mph) | 11.7 | 16.3 | 5.5 | — | — | — |
| Cloud Amount (0–10) | — | — | — | — | — | 8.0 |
| Rainfall (in) | — | — | — | — | — | 11.540 |
In reducing the barometer readings to gravity at latitude 45°, a constant correction of −0.035 inch has been applied.
Zb6
316
| Day | Remarks |
|---|---|
| 1 | Lunar halo, Thunderstorms. |
| 2 | Lunar halo, Rainbow, Lightning. |
| 3 | Lunar halo, Haze, Thunderstorms. |
| 4 | Thunder. |
| 5 | Rainbow, Thunder. |
| 6 | Lightning, Thunder. |
| 7 | Lunar Corona, Thunderstorms. |
| 8 | Haze, Dew. |
| 9 | Dew, Thunderstorms. |
| 10 | Haze, Unusual Visibility, Dew, Thunderstorms, Rainbow. |
| 11 | Solar halo, Haze, Unusual Visibility. |
| 12 | Solar halo, Dew, Rainbow. |
| 13 | Rainbow. |
| 14 | Lightning. |
| 15 | Thunderstorms. |
| 16 | Lightning. |
| 17 | Thunderstorms. |
| 18 | Thunderstorms. |
| 19 | Lightning. |
| 20 | Thunderstorms. |
| 21 | Thunderstorms. |
| 22 | Lightning. |
| 23 | Thunderstorms. |
| 24 | Lightning. |
| 25 | Rainbow. |
| 26 | Lightning. |
| 27 | Solar halo, Lightning. |
| 28 | Lunar halo, Rainbow. |
| 29 | Slight fog, Dew, Lightning. |
| 30 | Lunar halo, Thunder. |
Station: Royal Observatory, Hongkong.
Height above M.S.L. 109 fr.
Barometer at M.S.L. and
Day.
reduced to gravity at
latitude 15'.
1917.
Month of June.
[ Tension
Air Temperature.
of Vapour.
Relative
Humidity.
Wind.
Direction and Force.
Amount of
Cloud.
Long. 7 36" 41" 8 E.
Lat. 22° 18' 13.2" N.
Rainfall.
Remarks,
1917.
7.
1 P.
9 P.
7 0.
I p.
9 P.
Mux.
Mio.
Daily Daily Means, Menus,
Daily
7 0.
I p.
9 p.
Means.
law.
பட
Ink.
D
*
⭑
•
in.
%
29.756
29.736
29-751
81.9
$4.8
81.5
86.8
30.3
0.900
*
-741
713
.715
81.0
85.2
$1.2
89.0
80.0
.904
9 20
Dir. Vel. Dir. | Vel. Dir. |Vel. points mwy.lt points.m.p.hpoints. m.p.h. 82
18 18 81
(0-10
Ins.
19
18
20
I 2
18
3
.702
725
.710
81.2
84-7
77.9
87.1
75.9
.897
87 18
10 22
14 7
718
+746
.745 80.5
849
81.7
86.9
8.5 .914
83
18
5 19
TI 19
.769
-782
773
81.4
84.8
82.6
86.3
20
79.5
.912
5
20
-773
.780
-779
83.3
85.7
82.2
88.6
80.8
.918
80
19
5
13 20
18 9 16
en 20:00 KAO NO
3 9.5 0.105
8.9
0.115
9.0
0.455
9.1
0.160
9.6
0.075
Lumar halo, Thunderstorms. Luuar hulo, Rainbow, Lightning.
Lunar halo, Haze, Thunderstorms. Thunder.
Rainbow, Thunder.
8.7 0.035
.756
.764 -757
81.0
84-4 79.2
86.z
77.5
.886
83
17
20 15 25
-740
+743 .761
79.4
85.6
77.0
86.7
76.8
.885
89
21
9 z3
12
9.8 9.1
1.400 1.200
Lightning, Thunder.
.790
.802 .805
774 83.9
80.4
87.0
76.6
.839
80
10
,810
.829
.845
79.8 78.6
78.4
84.8
77.1
.879
89
28
+00
I 24 5
.796
.768
79.2
84.8
80.2
87.0
76.6 .897
86
7
12 9 II
12
.748
+751
.739
80.7
85.6
81.5
87.6
78.5
.891
81
17
Room
1
9 9
10
7.1 4.6
0.370 0.010
6.4
0.025
13
-753
751
-757
81.2 87-7
81.7
88.3
79.5
.897
80
I
16 7
5.2
0.110
14
.779
-779
19.7
.82.8
88.0
79.6
.893
I
15 15 15
4
5.1
0.010
Lunar Corona, Thunderstorms. Haze, Dew.
Dew, Thunderstormis.
Hano, Unusual Visibility, Duw, Thunderstorms, Italnbow. Solar balo. Ilaze, Unusual Visibility.
Solar halo, Dew, Rainbow.
Rainbow,
15
.782
796
.789 82.2
85.0
83.1
87.7
79.6
.891
77
22
6 19 7 18
6.0
0.200
16
.770
-737
.707
82.8
87.2
82.9
88.4
81.7
.893
19
9 20 12 18
7.1
0,005
17
.681
.633
.623
83.6
87.2
82.9
87.6
78.5
.895
19 7 22 14 19 6
7.6
0.200
Lightning.
18
.630
.637
.670
81.0
87.0
82.8
87.5 78.6
.929
19 12 19 20 17 2 9-5
0,210
Thunderstorms.
19
.690
.707
.713
81.0
85.0
82.9
86.3
79.1
.944
84
18 II 17 5 16 5
9.5
1.105
Thunderstorms,
20
.691
.703
.678 82.9
80.4
83.6.
86.0
85.0
-918
81
18 13 19 14
I8 9
9.5
0.260
Thunderstorms,
21
.672
.676
.671
81.8
83.8
82,6
87.1
81.6
.934 82
20 13 19
21 19.
9.8
0,020
Lightning.
22
.635 .614
.626
82.1
86.2
83.2
88.0
80.4
-943
81 19 16
19
22 16
9.6
0.470
Thunderstorms.
23
.616
.641
.661
81.6
80.6
79.3
83.2
78.6
.924
88 18 11
9
3
8
10.0
c.290
Lightning.
24
.703
.727
79.0
83.1
75.8
86.2
75.4
.865 86 10
8.5
15
2
0.975
Rainbow.
25
-737
.730
+740
78.9 77-7
78.1
82.1
75-3
.863 89 7
12
8
I f
7
0.955
Lightning.
26
.703
.703 .699
78.1
84-5 79.3
84.6 76.9
27
715
713
.722
79.6
83.7
80.3 84.4
28
.719
.707
-723
77-9
84.0
·
81.6 86.9
29
.722
.695
.732
80.3
87.4
84.3 89.1
30
.718
.766
.786
81.0
76.6
76.4
82.5
,889 86 8 મ 77.1 .899 85
.895 77.2 78.7 .902
80 74.9 .864 89 19 5 18
T8
6.5
7
0.060
Rainbow,
7
8
6.7
0.135
Solar Lalo, Lightning.
ΤΟ 10 16
6.3
0.175
Lunar halo, Rainbow,
6.2
24 10 17
0.025
Slight fog, Dew, Lightning.
9.8
TO
2.435
Lanar balo, Thunder,
:
...
•
Sums.
Menn 29.728
29.729 29.733
80.7
84.2
80.9
86.6
78.4
0.899
83 19.6 7.3 20.7 11.7 16.3 5.5 8.0
11.540
►
In reducing the barometer readings to gravity at latitude 45”, a constaut correction of −0·035 inch has been applied.
( Zb 6 )
316
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