Den Norske Nordhavs-expedition 1876-1878 / The Norwegian North-Atlantic Expedition 1876-1878 / 2. Bind / 42 (1880-1901) Table of Contents / Innehåll | << Previous | Next >>
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Kobberhuset med Thermometrene stod inde i et større
Hus af Træ (Fig. 10), idet det hvilede paa Consoler,
fastgjorte i dettes Yæg, og holdtes fast med Klamper. Det
ydre Træhus var af Bord, hvidmalet, 103 Cm. højt, 41
Cm. bredt, 33 Cm. dybt,
aabent oventil og nedentil og
forsynet med Dør.

Det Thermometerhus,
som benyttedes til de daglige
Observationer, var hejst op
under Fokkestaget, som Fig. 1
viser. Der var intet
Fokkestagsejl underslaaet.
Thermometrene hang her 7 Meter
over Havet, 4 Meter over
Dækket. Thermometerhuset
støttedes paa sin Plads af
Barduner, der løb fra den
nedre Ende af Huset og vare
gjorte fast i Rækken, den ene
om Styrbord, den anden om
Bagbord. Naar Observation
skulde tages, firedes
Thermometerhuset hurtigt, men
varsomt, ned til en passende
Højde, der var reguleret ved den
faste Part af Faldet, begge Døre
aabnedes raskt, Tiendelene af
Grader aflæstes paa begge
Thermometre, derpaa de hele
Grader, det eftersaaes. at det
vaade Thermometer ikke
manglede Vand, hvorpaa Dørene
atter lukkedes og Apparatet
hejsedes op paa Plads.

Fig. 10.

Denne Plads havde
Thermometerhuset under alle 3
Aars Expeditioner. De eneste
Forandringer, den var
underkastet, vare, at den i 1876
var lidt nærmere Fokkemasten

end i de to andre Aar. og at Huset, naar vi vare under
Sejl med Bredfokken sat, bragtes noget forover af Bugen
af dette Sejl.

Thermometrene vare saaledes beskyttede mod Sol,
Nedbør og Sprøjt af Søen samt frit udsatte for Luftens
Paavirkning fra alle Kanter.

Naar Yinden var ret forind, kunde man tænke sig,
at Røgen fra Kabys-Skorstenen forud (vist i Fig. 1) kunde
komme til at opvarme Thermometrene. Men denne Frygt,
viste sig ugrundet, hvorom jeg særligt overbeviste mig ved
Hjelp af Slyngethermometret, hvorom mere nedenfor, i
saadanne Tilfælder, da Røgen fra Kabysen gik agterover.
I Almindelighed var desuden denne Røgs Virkning indover
The copper case containing the thermometers was
enclosed in a larger case, of wood (Fig. 10), resting on
brackets let into its side, and secured by means of clamps.
The outer wooden case, made of boards and painted white,
was l.m03 high, 41cm broad,
and 33°™ deep, open above
and below, and provided with
a door.

The case containing the
thermometers used for the
daily observations was hoisted
up under the fore stay, as
shown in Fig. 1. There was
no forestaysail bent. Here,
the thermometers hung 7
metres above the sea and 4 metres
above the deck. The
thermometer screen was secured by
means of guys, passing from
the lower end of the case,
and made fast to the railing,
one on the starboard and the
other on the port side of the
vessel. When an observation
had to be taken, the
thermo-meter-case was rapidly but
carefully’ lowered to the proper
height, determined by the fixed
length of the halyard, both
doors were immediately opened,
tenths of degrees read off on
both thermometers, then the
whole degrees, and the wet
thermometer examined to see
if it wanted water, after which
the doors were again shut and
the apparatus hoisted up to
its place.

This place, the
thermometer-case had on each of the
three cruises of the
Expedition. The only change lay in
its being a little nearer the
foremast in 1876 than in the
two following years, and that, when the vessel was under
sail, with the foresail set, it was brought a trifle forward
by the bunt of the sail.

The thermometers were accordingly protected against
sun, rain, and the spray of the sea., and on all sides freely
exposed to the air.

With the wind right ahead, it might be supposed
that the smoke from the galley-funnel (see Fig. 1) could
warm the thermometers. But this fear proved groundless, a
fact of which I fully convinced myself by testing the case in
question with the sljng thermometer — concerning which
I shall have more to say in the sequel — when the smoke
from the galley was carried right aft. Moreover, the effect

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