Full resolution (JPEG) - On this page / på denna sida - Sidor ...
<< prev. page << föreg. sida << >> nästa sida >> next page >>
Below is the raw OCR text
from the above scanned image.
Do you see an error? Proofread the page now!
Här nedan syns maskintolkade texten från faksimilbilden ovan.
Ser du något fel? Korrekturläs sidan nu!
This page has never been proofread. / Denna sida har aldrig korrekturlästs.
28
Man ser, at Vinde, hvis Styrke er over 2 Beaufort
Scale, ere angivne med Hensyn til Hastighed altid meget
nær lige saa nøjagtigt, som denne er maalt ombord, og med
Hensyn til Retning mindst paa 1 Stregs Nøjagtighed. I
Overensstemmelse hermed er i Tabellerne over de
meteorologiske Observationer Vindens Retning angiven paa
nærmeste Streg og Vindens Hastighed i 1876 paa hel Meter,
i 1877 og 1878 paa Tiendedel Meter pr. Secund.
From the above Tables, it appears that a wind with
a force of more than 2 Beaufort Scale, is. as regards velocity,
always given with very nearly the same accuracy as
measured on board, and, as regards direction, with an
accuracy of at least 1 point. According to the above,
in the meteorological observations set forth in the Tables
the direction of the wind has been given to the nearest
point, and the velocity of the wind, for 1876, to the nearest
whole metre, for 1877 and 1878 to the nearest tenth of a
metre per second.
Beregningen af Vindobservationerne udførtes paa
følgende Maade:
Skibets Fart, udtrykt i Kvartmil i Timen, omgjordes
til Meter pr. Secund efter følgende Tabel:
The computation of the wind-observations was effected N
as follows: —
The speed of the vessel, expressed in miles an hour,
was converted into metres per second, according to the
following Table: —
1 Kvartmil i Timen — 0.5153 Meter pr. Secund. (1 Mile an Hour — 0.5153 Metre per Second).
Kvartmil Timen. Meter pr (Metres p Secund. r Second). Miles an Hour.
.O . I .2 •4 ■5 .6 ■7 .8 .9
0 O.O 0.1 0.1 0.2 0.2 0.3 03 0.4 0.4 0.5 0
1 0-5 0.6 0.6 0.7 0.7 0.8 0.8 0.9 0.9 1.0 I
2 I.O 1.1 1.1 1.2 1.2 1-3 1-3 1-4 1.4 1-5 2
3 1-5 1.6 1.6 1-7 ■•7 1.8 1.8 1.9 1.9 2.0 3
4 21 2.2 2.2 2.3 2-3 2.4 2.4 2-5 2-5 2.6 4
5 2.6 2-7 2-7 2.8 2.8 2.9 2-9 3.0 30 31 5
6 3-1 3.2 3-2 3-3 3-3 3-4 3-4 3-5 3-5 3-6 6
7 3-6 3-7 3-7 3-8 3-8 3.9 3-9 4.0 4.0 4-’ 7
8 4-1 4-2 4-2 4-3 4-3 4-4 4-4 4-5 4-5 4.6 8
9 4.6 4-7 4-7 4.8 4.8 4-9 4-9 5.0 5-0 5-> 9
IO 5-2 5-2 5-3 5-4 5-4 5-5 5-5 5-6 5-6 5-7 10
11 5-7 5-8 5-8 5-9 5-9 6.0 6.0 6.1 6.1 6.2 11
12 6.2 6-3 6-3 6.4 6.4 6-5 6-5 6.6 6.6 6.6 12
Vindmaalerens Registrering omgjordes, i 1876, til
Vindhastighed i Meter pr. Secund. 1 Delstreg regnedes, som
29
ovenfor forklaret,, lig ^ Meter pr. Secund. I 1877 og
1878 havde man kun at addere Frictionscoefficienten til den
registrerede Vindhastighed.
Af den paa nærmeste hele Grad noterede Kurs paa
Compasset beregnedes efter Capt. Willes Deviationstabeller
den rigtige misvisende Kurs. Med den for den anlagte
The registration of the anemometer was converted, for
1876, into metres per second. One division of the scale
29
was taken, as stated above, equal to ^ metre per second.
In 1877 and 1878, the friction-coefficient had only to be
added to the registered velocity of the wind.
Taking the course per compass within the nearest
whole degree, the true magnetic course was found from
Captain Wille’s Deviation Tables. With the value of the
<< prev. page << föreg. sida << >> nästa sida >> next page >>
