DOI Page / Citation link:
https://doi.org/10.11588/diglit.20131#0408
GROUP V. CENTRAL AND SOUTHERN INDIA.
387
DAILY VARIATION OF THE DECLINATION FOR THE FOUR SEASONS AT BOMBAY.
In Minutes of Arc. 411 12 p.m. Bombay Civil Time = Noon Gottingen Time.
Bombay
Civil
Time.
Spring,
1856,
March, April,
and May.
Summer,
. 1856,
June, July,
and August.
Autumn,
1856,
Sept., Oct.,
and Nov.
Winter,
1856-7,
Dec, Jan.,
and Feb.
Midnight+ 12m
0- 191
0-247
i
0-333
— 0-008
1 12 A.M.
0-264
0-428
0 • 368
— 0-115
2 12 „
0-301
0-528
0-256
— 0-200
3 12 „
0-235
0-591
0-145
— 0-314
4 12 „
0-187
0-625
0-078
— 0-412
5 12 „
0-198
■ 0-880
0 • 009
— 0-688
6 12 „
0-853
1-773
0-213
— 1-078
7 12 „
1-227
2 • 209
0-668
— 1-488
8 12 „
1-540
1-822
0-766
— 0-884
9 12 „
1-244
0-750
0-240
0-008
10 12 „
0-287
— 0-512
— 0-555
0-541
11 12 „
— 0-809
— 1-523
— 1-217
0-359
Noon + 12m
— 1-554
— 2-074
— 1-358
0-833
1 12 P.M.
— 1-387
— 1-914
— 0-921
0-845
2 12 „
— 0-936
— 1-343
— 0-338
0-559
3 12 „
— 0-360
— 0-725
0-161
0-226
•4-I2 „
— 0-028
— 0-182
0-466
0-114
5 12 „
— 0-075
— 0-046
0-121
0-199
6 12 „
— 0-247
— 0-231
— 0-028
0-284
7.12 „
— 0-376
— 0-490
0-036
0-336
8 12 „
— 0-368
— 0-464
0-133
0 • 305
9 12 „•
— 0-224
— 0-309
0 • 142
0-288
10 12 „
— 0-083
— 0-150
0-237
0-196
11 12 „
0-060
0-065
0-276
0-115
We adopt for our maps the following values for the magnetic elements for Eombay.
They are reduced to January 1, 1856, by taking the mean of the annual values of
1855 and 1856.
Declination East..... 0°19'-13 Vertical Intensity..... 2-775
Horizontal Intensity ... 8-008 Total Intensity...... 8-475
Dip ............ 19° 6' -6
49 *
387
DAILY VARIATION OF THE DECLINATION FOR THE FOUR SEASONS AT BOMBAY.
In Minutes of Arc. 411 12 p.m. Bombay Civil Time = Noon Gottingen Time.
Bombay
Civil
Time.
Spring,
1856,
March, April,
and May.
Summer,
. 1856,
June, July,
and August.
Autumn,
1856,
Sept., Oct.,
and Nov.
Winter,
1856-7,
Dec, Jan.,
and Feb.
Midnight+ 12m
0- 191
0-247
i
0-333
— 0-008
1 12 A.M.
0-264
0-428
0 • 368
— 0-115
2 12 „
0-301
0-528
0-256
— 0-200
3 12 „
0-235
0-591
0-145
— 0-314
4 12 „
0-187
0-625
0-078
— 0-412
5 12 „
0-198
■ 0-880
0 • 009
— 0-688
6 12 „
0-853
1-773
0-213
— 1-078
7 12 „
1-227
2 • 209
0-668
— 1-488
8 12 „
1-540
1-822
0-766
— 0-884
9 12 „
1-244
0-750
0-240
0-008
10 12 „
0-287
— 0-512
— 0-555
0-541
11 12 „
— 0-809
— 1-523
— 1-217
0-359
Noon + 12m
— 1-554
— 2-074
— 1-358
0-833
1 12 P.M.
— 1-387
— 1-914
— 0-921
0-845
2 12 „
— 0-936
— 1-343
— 0-338
0-559
3 12 „
— 0-360
— 0-725
0-161
0-226
•4-I2 „
— 0-028
— 0-182
0-466
0-114
5 12 „
— 0-075
— 0-046
0-121
0-199
6 12 „
— 0-247
— 0-231
— 0-028
0-284
7.12 „
— 0-376
— 0-490
0-036
0-336
8 12 „
— 0-368
— 0-464
0-133
0 • 305
9 12 „•
— 0-224
— 0-309
0 • 142
0-288
10 12 „
— 0-083
— 0-150
0-237
0-196
11 12 „
0-060
0-065
0-276
0-115
We adopt for our maps the following values for the magnetic elements for Eombay.
They are reduced to January 1, 1856, by taking the mean of the annual values of
1855 and 1856.
Declination East..... 0°19'-13 Vertical Intensity..... 2-775
Horizontal Intensity ... 8-008 Total Intensity...... 8-475
Dip ............ 19° 6' -6
49 *