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94
Favne. Vod fortsat Afkjøling ovenfra bringes dette
Maximum efterhaanden nedover, indtil det naar Bunden, og
Temperaturen i Januar aftager stadig ovenfra nedad.
At Temperaturens aarlige Vandring foregaar paa denne
Maade paa andre Steder end ved Lodingen og i
Alten-Fjorden, fremgaar af talrige Iagttagelser. Kjendemerkerne ere
de ovenfor fremha’vede: Et Minimum mellem Overfladen og
H)0 Favnes Dyb om Yaarcn og Sommeren, et Maximum
samme Steds ora Høsten, stadig voxende Temperatur med
Dybden 0111 Vinteren. En stadig aftagende Temperatur
meel Dybden ved Høstjevndøgustider kan ikke opstilles som
Kjendemerke, da en saadan Fordeling af Temperaturen paa
mange Steder, nemlig i det aabne Hav, er den almindelige
i de Heste Maaneder af Aaret.
Et Minimum af Temperatur i Dybden mellem
Overfladen og 100 Favne er observeret paa følgende Stationer
(Se PI. lir til VIII):
deeper strata still continues to diminish. A maximum of
temperature is attained at a certain depth, between the
surface and 100 fathoms. Continuous cooling from above
gradually brings down this maximum till it reaches the
bottom, and till the temperature in January steadily decreases
from above downwards.
That the annual variation of the temperature proceeds
in the manner described above in other places than
Lodingen and the Altenfjord, is evident from numerous
observations. The chief characteristics are those already set forth,
viz: — A minimum in spring and summer between the
surface and a depth of 100 fathoms; a maximum in the
same place during autumn; temperature steadily increasing
with depth throughout the winter. A temperature steadily
diminishing with depth at the autumnal equinox cannot be
taken as a trustworthy characteristic, since the latter
distribution of the temperature, in many localities, viz..
the open sea. for example, prevails during the greater
part of the year.
A minimum of temperature in depths between the
surface and 100 fathoms, was observed at the following
Stations (See Pis. Ill to VIII): —
Station Dybde Maaned Sled
No. at’ Mill. (Month) (Locality)
(l),,,th
of .1 lill.)
24 55 Fv •Tuni Udenfor (■■_/>’) Romsdal.
40 50 Juli X. for Færøerne.
03 72 Aug. Romsdalsfjord.
04 20 Jiiui Udenfor (of) Udsire.
OS 50 Juni — ,. Bergen.
107 30 Juni ,. Vifften.
148 fio .Tuni Vestfjorden.
50 Juni Ved (at) Rost.
173 20 Juli ,. ,. Andenes.
176 50 Juli
217 30 Juli ,. Jan Mayen.
221 30 Juli
223 30 A uff.
231 40 A ug. « —
237 40 Aug. ..
238 60 A uff. —
240 50 A uff. r
253 100 Aug. Skj crsta-Fj ord.
254 60 A ny. Vest-Fjorden.
255 40 Juni
256 100 Juni Alten-Fjord.
259 40 Juni Porsanger-Fjord.
297 50 Juli Grønlandshavet (Orld. Sia)-
298 50 Juli —
300 40 Juli —
302 40 Juli —
Station Dyl.de Manned Steil
No. al’ Min, (Mouth) (Locality)
(Ihpth
uf Min.)
304 25 Fv. Juli Grønlandshavet (Grid, s<■
325 50 Juli Vod (at) Beercn-Eiland.
33* 20 Aug. Spidsborgen.
348 40 Aug. Gronlandshavet ((/r d. .<•’<«
350 40 Aug.
35’ 40 Aug.
3>2 40 Aug. —
353 40 Aug. —
35® 40 Aug. Spidsberffon.
357 60 Aug. —
370 20 Aug. —
373 40 Aug. —
1). 22 10 Juni Island.
I). 30 40 Juli
1). 31 34 Juli
H. 2 5° Maj Skagerak.
H. 4 30 Sept. Tlirondhjemsfjord.
H. 7 3° Juli Folden-Fjord.
H. 8 40 Aug. —
H. li 50 Juli l’doufor (of) Folden-Fjoi
H. 19 61 Juli Brønø.
H. 26 55 Aug. Fiskebank (banh).
T-l. 27 82 Juli. .Dønnes-Fjord.
Man ser. at alle de Steder, hvor det mevnto
Temperatur-Minimum er observeret, ligge enten ved Kysterne (af
Island, Færøerne, Norge. Beeren-Eiland, Spidsbergen og
Jan Mayen eller i Grønlandshavet paa den Strækning, der
om Vinteren er dækket af Ts og om Sommeren isfri. I
det aabne Hav er saagodtsom overalt Temperaturen om
Sommeren funden aftagende med Dybden.
Hence it appears, that all the localities in which the
said temperature-minimum has been met with, lie either oil’
the coasts of Iceland, the Færoes, Norway. Beeren-Eiland.
Spitzbergen. and Jan Mayen, or in the Greenland Sea,
viz., throughout the tract covered with ice during winter and
free from ice in summer. In the open sea. the temperature
in summer is almost everywhere; found to diminish with
the depth.
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