Part 47
RAIN-REGISTER AT SANTA ANNA.
(Kept by Mr. Charles Sproul[503] between October 25th, 1882, and December 31st, 1883.)
[503] I am indebted to Mr. William Heughan for commencing this register.
The rain-gauge used was of the common round funnel pattern (57 inches).
The observations were made at Port Mary on the west side of the island.
The elevation of the guage was some four or five feet (or less) above the high tide level.
+------------------+---------------+-------------+-----------+
MONTH.
Total in
Number of
Greatest
inches and
rainy
daily
hundredths.
days.[504]
fall.
+------------------+---------------+-------------+-----------+
1882.
October, 25th-31st
306
5
170
November
706
15
197
December
1396
24
224
-----
--
Total, 2462
Total, 44
1883.
January
523
12
203
February
963
20
200
March
440
13
84
April
1496
24
322
May
1128
16
333
June
2688
19
773
July
1861
23
345
August
1174
15
202
September
481
12
252
October
568
9
167
November
657
11
120
December
524
8
168
------
---
Total, 12503
Total, 182
+------------------+---------------+-------------+-----------+
[504] By _rainy days_ are meant those days on which not less than 2/100 of an inch of rain were measured.
_Results for 1883._--_Total rainfall_ for 1883; 12503 inches.
Two-thirds of the total fall, _i.e._, 8347 inches, were recorded during the five months from April to August. _Greatest daily fall_, 773 inches. _Total number of rainy days_ 182, _i.e._, one half of the year.
On 41 days, more than an inch of rain fell.
RAIN-REGISTER AT UGI.
(Kept by Mr. Fred Howard between October 1st, 1882, and December 31st, 1883.)
The rain-gauge used was of the round funnel pattern (about 5 inches).
The observations were made at the residence of Mr. John Stephens at Selwyn Bay on the west side of the island. The elevation of the gauge was from four to six feet above the high-tide level.
+-----------+---------------+-------+----------+---------------+
Relative
Number
humidity
Total in
of
Greatest
taking 100 as
MONTH.
inches and
rainy
daily
saturation
hundredths.
days.
fall.
(see table,
p. 367)
+-----------+---------------+-------+----------+---------------+
1882.
October
1068
18
245
November
1016
16
460
December
957
21
136
------ ---
Total, 3041
55
1883.
January
1346
16
575
(83)
February
1389
17
400
82
March
1002
16
300
83
April
2328
26
300
88
May
639
9
165
83
June
1283
12
370
84
July
2460
25
285
89
August
1576
15
475
83
September
736
14
150
81
October
515
7
175
76
November
530
11
110
79
December
820
10
130
83
------
---
Total, 14624
178
+-----------+---------------+-------+----------+---------------+
_Results._--During the last quarter of 1882, the rainfall was 3041 inches; and the number of rainy days was 55.
During 1883, the _total rainfall_ was 14624 inches. The greatest monthly records were those of April and July: during these two months 4788 inches fell, or about one-third of the total fall for the year.
The _greatest daily fall_ was 575 inches. The _total number of rainy days_ was 178, or about one half of the number of days in the year. On 56 days more than an inch of rain fell; and in 18 days more than two inches fell.
RAIN-REGISTER KEPT ON BOARD H.M.S. "LARK."
(I am indebted to Lieutenant Leeper for a.s.sistance in keeping this register.)
The rain-gauge was raised about eleven feet above the water-level. I did not commence these observations until towards the close of the first season; and since, during the two following years, we spent about two-thirds of each year in this region, the record is, in consequence, not continuous.
(_A_) OFF THE NORTH COAST OF ST. CHRISTOVAL AND THE NEIGHBOURING ISLANDS IN 1882.
Total in Number Greatest inches and of rainy daily 1882. hundredths. days. fall.
Sept. (from the 9th), 1840 15 332 October, 1084 21 238 Nov. (to the 21st), 1831 12 574 ------ -- Total, 4755 48
_Results._--_Total Rainfall_ for this interval of 74 days from Sept. 9th to Nov. 21st, 1882, was 4755 inches. The _greatest daily fall_ was 574 inches. The _number of rainy days_ was 48, or about two-thirds of the whole. On 17 days, more than an inch of rain fell; and on 8 days, more than two inches fell.
(_B_) OFF THE NORTH COAST OF ST. CHRISTOVAL AND THE NEIGHBOURING ISLANDS IN 1883.
Total in Number Greatest inches and of rainy daily 1883. hundredths. days. fall.
April 13th-30th, 1043 15 162
(_C_) BOUGAINVILLE STRAITS IN 1883.
Total in Number Greatest inches and of rainy daily 1883. hundredths. days. fall.
June, 1632 26 223 July, 1025 24 212 August, 778 23 110 September, 1507 22 220 October, 1101 25 210 ------ --- Total, 6043 120
_Results._--During these 153 days, there fell 6043 inches of rain. The greatest fall in one day was 223 inches. The total number of rainy days was 120, or about four-fifths of the whole. On 14 days, more than an inch of rain fell; and on 7 days, more than two inches fell.
(_D_) BOUGAINVILLE STRAITS IN 1884.
Total in Number Greatest inches and of rainy daily 1884. hundredths. days. fall.
April (from the 8th), 782 12 432 May, 402 17 102 June, 922 22 158 July, 1816 19 809 August, 1187 21 258 September, 1746 23 376 October, 1095 23 184 ------ --- Total, 7950 137
_Results._--During these 207 days, there fell 7950 inches of rain. The greatest daily fall was 809 inches. The total number of rainy days was 137, or about two-thirds of the whole. On 24 days, more than an inch of rain fell; and on 7 days, more than two inches fell.
OBSERVATIONS[505] OF THE BAROMETER AND THERMOMETER IN THE SOLOMON GROUP, BY LIEUT. LEEPER, R.N.
(Taken on board H.M.S. "Lark.")
[505] The observations were taken at 4 a.m., 8 a.m., 4 p.m., and 8 p.m.
+-------------------+-----------------------+-----------------------+
THERMOMETER.
BAROMETER.
+--------+-------+------+--------+-------+------+
Highest.
Lowest.
Daily
Highest.
Lowest.
Daily
Mean.
Mean.
MONTH.
+-------------------+--------+-------+------+--------+-------+------
1882
In.
In.
In.
April,
94
74
844
3009
2988
30041
May,
94
78
845
3009
2989
29994
June,
92
77
837
3018
2986
30013
July,
90
75
818
3014
2992
3005
August,
94
75
811
3016
2996
30067
September,
92
76
809
3014
2993
30041
October,
89
77
814
3018
2988
30021
Nov. 1st to 22d,.
88
78
815
3013
2984
29981
+-------------------+--------+-------+------+--------+-------+------+
1883
April 14th to 30th,
92
75
821
3008
2986
29974
May,
...
...
...
...
...
...
June,
93
78
818
3008
2991
2999
July,
94
75
823
3012
2988
2996
August,
92
78
835
3008
2992
29992
September,
95
76
826
3010
2991
29992
October,
95
75
833
3012
2986
29993
Nov. 1st to 12th,
90
76
815
3008
2991
29982
+-------------------+--------+-------+------+--------+-------+------+
1884
April 5th to 30th,
90
76
822
3015
2983
29984
May,
95
78
845
3013
2986
29992
June,
94
77
822
3014
2993
30023
July,
87
76
815
3010
2987
29985
August,
87
76
810
3015
2985
30009
September,
90
75
823
3015
2992
30025
October,
96
75
811
3012
2985
30007
+-------------------+--------+-------+------+--------+-------+------+
Results calculated from observations of the temperature in the shade, and of the wet and dry bulb thermometers taken at Ugi at 9 a.m., by Mr. F. Howard.[506]
[506] The instruments were supplied by me. The Thermometer was by Negretti and Zambra: and the wet and dry bulbs were good reliable instruments. They were all first compared with the ship's instruments, which were supplied by the Meteorological Office after being verified at Kew.
+--------------------------------++
THERMOMETER IN SHADE.
+---------+--------+-------+-----++
MONTH.
Highest.
Lowest.
Mean.
+---------+--------+-------+-----++
1882.
October
87
76
817
November
84
78
805
December
84
80
814
1883.
January
86
79
820
February
85
79
815
March
86
78
818
April
83
76
800
May
85
78
816
June
84
77
806
July
83
77
802
August
84
77
803
September
84
77
809
October
85
76
820
November
86
77
820
December
84
79
813
+---------+--------+-------+-----++ 812--Mean for 1883.
+---------++--------------------------------------------------+
HYGROMETER.[507]
+---------++-----+-----+------+---------------+---------------+
Mean
Mean
Mean
Mean Elastic
Mean Relative
MONTH.
Dry
Wet
Dew
Force of
Humidity,
Bulb.
Bulb.
Point.
Aqueous Vapour.
Saturation 100.
+---------++-----+-----+------+---------------+---------------+
1882.
October
...
...
...
...
...
November
...
...
...
...
...
December
...
...
...
...
...
1883.
January
...
...
...
...
...
February
816
780
756
885
82
March
817
783
760
898
83
April
801
778
762
904
88
May
816
782
759
895
83
June
806
775
754
880
84
July
802
780
764
912
89
August
803
769
746
857
83
September
809
769
742
846
81
October
820
770
736
830
76
November
820
778
749
867
79
December
814
780
757
891
83
+---------++-----+-----+------+---------------+---------------+
[507] Calculated from Glaisher's Tables.
WIND-RECORD FOR EACH MONTH.
Prepared from the observations taken on board H.M.S. "Lark," and by Messrs. Sproul and Howard, at Santa Anna and Ugi.
