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183
hvoraf (whence) m„ = 11.398018 log in,. — 1.0568298
ce = 0.000025813 log « = 5.4118416—10
ß = —0.0000003603 log ß — 3.5566085,,—10.
Indsættes disse Værdier, faaes
Substituting these values, we got
for I = o°.o 5.°72 8°.35 11.052 i5(,.3i
Observeret Stand (Observed Beading) 11 .40 13 .50 13 .00 10 .96 7 .03
Beregnet Stand (Computed Beading) 11 .398 13 .53 12 .94 11 .00 7 .02
— 0 — B +0 .002 —o .03 +0 .06 —o .04 -|-o .01
Sandsynlig Fejl af en Ligning: t) = + 0-037
nim-Værdien af m, for tilsvarende Værdier af t kan
beregnes paa følgende Maade:
Probable error of an equation: ö = +0.037
mm-The value of mt for corresponding values of t, may
be computed in the following
i C
Efter (According to) Broch er ^ =
IC
\ i
.....I v,,’ i +«* + /*<»
- 0.0000603061 4- 0.000007Q27Q /- — 0.000 0000426041’
altsaa (hence) mt
I i — at + h«« — c f’
- )»„ (i — at + hP - e f) I i — a I — (,t — a’)P –...)
f ->«„)( 1 (a + a) t + (d - fl + a’) t’ - e t’)
- O.OOOO861 I9. t O.OOOOO82889. t’ — 0.000 000042604. f’)
’t = 9303-070 — 929I.672
mm
t = 9303-070 — [3.9680939] (i - [5.9350990] t + [4.9184969] ta — [2.6294504]
Efter denne Formel beregnes følgende Tabel:
According to this formula, I have computed the fol-
lowing Table: —
/ = o°.o o°.i 0.°2 o°-3 o».4 o°,6 o",7 o".8 o".g
_[0 10 .52 io .42 IO.33 10 .23 10 .13 10 .02 q .92 g .81 g .71 g .60
—o° I 1 .40 II .32 11 .23 il 15 11 .07 10 .98 10 .8g 10 .80 10 .71 10 .61
+0« II .40 II .48 " -55 II .63 II ,71 il .78 ■ I .85 11 .g2 II .gg 12 .06
+1° 12 .12 12 .18 12 .25 12 .31 12 -37 ■2.43 12 .48 12 .54 12 .59 12 .64
-f 2° 12 .69 12 .74 12 .79 12 .83 12 .88 12 .Q2 12 .g6 13 -oo 13 .04 13 .08
Paa Expeditionen i 1878 blev Piezometret No. 32109
sendt sammen med 3 Dybvandsthermometre 10 Gange til
Havbunden. Af Lodskuddene, Havvandets specifiske Vægt,
dets Sammentrykkelighed og Tyngdens Størrelse kan det
ved Havbunden stedfindende Tryk i Atmosfærer beregnes.
Trykket som Function af Dybden.
Er h Dybden i engelske Favne, a 1.82876694 Meter,
b Tyngdens Tilvæxt med Dybet pr. engelsk Favn =
0.000 00041698,
(f Bredden,
ß en Constant = 0.00259,
S Havvandets specifiske Vægt ved Atmosfærens Tryk,
i Dybden h, (Vand af 4° C = 1),
2 Havvandets middel-specifiske Vægt i den trykkende
Vandsøjle,
^ . , 1.82876694 . 0
a„ en Constant = - = 0.1769851;
13-5959X0.76
log «„ = 9.2479368—10,
On the cruise in 1878, the piezometer No. 32109
was sent to the bottom 10 times, along with 3 deep-sea
thermometers. From the sounded depth, the specific gravity
of the sea-water, its compressibility, and the force of gravity,
the pressure at the bottom, in atmospheres, may be computed.
The Pressure as Function of the Depth.
Let h be the depth in English fathoms, (1 fathom =
1.82876694 metre);
b the increase of gravity with depth per Eng. fatli.
= 0.00000041698;
tp the latitude;
ß a constant = 0.00259;
.S’ the specific gravity of the sea-water (atmospheric
pressure), at the depth h (water of 4° C. = 1);
2 the mean specific gravity of the sea-water in the
pressing column of water;
1.82876694
I3-5959X0.76 "
log a,, = 9.2479368—10;
a„ a constant
= 0.1769851
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