Day.
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.
1916.
Month of May.
Tension
of
Vapour.
Relative
Humidity.
Wind.
Direction aud Force.
例。
Long. 7 36 418 E.
Lat. 22° 18' 13.2" N.
Amount of
Cloud.
Rainfall,
Remarks.
1916.
7 u.
I p.
9 P.
72.
I p.
9 p.
Max.
Min.
Daily Daily Meaus. Means.
Daily
7 a.
. I
P.
9 p.
Means.
May.
1
ins. 29.861
ins.
ins.
a
0
^
IN.
%%
Dir. Vel. Dir. Vel. Dir. Vel. (0-10.) points. m.p.h. points, m.p h. quints. m.p.li.
ina.
29.875
29.891
79.1
82.6
77-4
84.7
76.1
0.889
89
13 7 9 8
14 8.5
0.695
Lightning.
2.
.893
.909
-936
74.2
74.6
73-7
77.1
72.3
.726
86
6 23 8
zg
30
8.4
3
-937
.969
.955
70.6
72.6
73-2
75.2
70.0
.633
8 27
8
24
19
6.9
+
.996
.974
.955
71.7
75.2
72.8
76.8
71.0 .647
7
10
22
12
5.3
-972 .936
.909
72,1
77.7
73.6
78.8
71.4
.683
Во
8
6.0
-946
.886
.870
74.6
80.6 74.6
81.5
72.I
.723
79
TI
16
3.0
.870
.832
.847
74.1
84.4
77.7
86.6
71.2
.736
76
27 6
30
2
0.5
Dew, Haze.
-931
.931
.944
72.6
74-9
73.6
77-7
72.5
.659
78
36 7 z8 8 24
7.0
9
-949 .961
.941
73.7
77.6
74.3
79.8
72.0
.690
79
20
10 .926
.904
.832
75.5
80.6
76.8
83.2
74-5
.787
83
10
I 1
.853
.809
.787
76.8
82.6
77-9
84.6
73.9
.804
81
12
.811
.827
.829
76.4
81.4
78.4
83.3
74.9
.824
8+
10
2
agag
12 8 13
5.8
3 10 12 8 7
5.0
9
14 5
3.2
26 8 19
4.2
Slight fog.
Slight fog, Lunar corona.
+
13
.812
.801
.780
76.5
79.2
77.2
81.6
76.4
-797
82
8
14
.740
-739
.727
77.4
78.6
77-7
80.3
75-9
.838
87
7
15
.717
-716
.765
78.5 82.6
77-7
83.9
75.8
.848
83
9
16
.813
.848
.890
76.3
80.4
74.8
80.5
73-9
.820
88
9
17
.877 .887
.898
77.6
79.2
80.1
81.3
74.4
.868
90
8
50 00 ON ON ON
25 9 21
7.6
9
18
.826
.806
-757
80.1
79.6
80.5
83.7 75.3
.867 85
16
871200 =
8.5
0.020
Lunar corona.
9 19
7.2
0.345
15
9.5
0.570
Lightning.
13 14
10.0
0.110
Thunder.
2
16 8
9.8
0.055
19
.707
.691 .624
80.0
81.0
77.1
82.4
73-7
.856
89
15
17
18
23
29
10.0
3.055
Thunderstorms.
Thunderstorms.
20
.696 .708
.720
77.4
84-5 77.6
86.6
74.9
.804
79
27
12
24
21
.728
.760
.766
78.6
77-7
74.6
82.3
73.9
.837
90
9
16
22
.780
.822
.827
72.5
76.6
74.2
78.9
71.1
.778
91
8
23
10
18
23
24
+798
.805
.822 .835 .783 75.4
75.8
77.1
77-8
72.7
.780
88
7
23
.807
77.4 84.6
79.8
87.7
75.8
.872
84
9
في ليا
8
18
0150 00 00
9
3
7-9
0.020
7 18
9.0
2.910
Dew, Slight fog, Thunderstorms,
17
10.0 1.250
9
9.9
0.125
3
19
9
17 4
6.7
0.045
25
.833
.822
.835
78.3
85.6
80.6
88.0
76.9
.883
83
1
25 9
5-7
Slight fog.
26
.852
.822
.823
80.7
84.9
80.6
88.2
77.9
.863
79
9
2 24 9
17
2
3.7
27
.810
.771
-749
79.9
86.6
81.8
88.9
78.4
.857
77
I
23 10
17
2.0
28
-731
.714
.739
80.6
87.8
82.2
90.5
78.3
.890 78
24 to
19
3.0
29
.724
.719
.735
81.5
87.6
82.6
90.3
78.6
.893
78
I
30
.761
-758
.761
80.3
84-7
79.6
85.7
78.3
.858
12
31
-752
.782
-749
77.9
76.1
79-1
80.5
75.4
.876
91
I 2
47
9
00 1500
17
6.7
8
7.8
0.055
9
9.6
3.680
Slight fog, Unusual Visibility,
Dew, Lightning,
Lightning, Slight fog.
Lightning, Dew.
Lightning, Slight fog, Solar halo.
Lightning, Thunder.
Thunderstorms, Slight fog.
[Lightning,
Sume,
Means 29.831
29.827 29.820 76.7
80.6
77-4
82.9
74.5
0,803 83
9.3 10.8 10.8 14.5 10.5 11.8
6.7
12.935
In reducing the Barometer to gravity at latitude 45o a constant correction of −0·055 inch has been applied.
( Zb 6 )