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64
Renden, gjennem Porcupines Station Ko. 04.
Tsothermo-batlierne bero lier udelukkende paa
Poreupine-Observatio-ner, i Midten paa Temperaturrække, paa begge Sider kun
paa Buiidteinperaturer i Nanlieden af Snittet i de
respective Dybder. Isothermerne for 1" til 7" helde i den østlige
Halvdel sterkt mod Shetlandsbankeii. Her er altsaa det
varmeste Vand ophobet. Isothermen for 0° har en
lignende, men svagere Heldning. Den ligger i Midten paa
320 Favnes Dyb. Isothermen for — t° derimod samker
sig i Midten og løfter sig paa begge Sider. Det koldeste
Yand drager sig saaledes op over Skraaningerne paa begge
Sider.
Tversnit VII gaar fra Station No. 94. ved Udsire.
langs den norske Rende mod XXW til Station No. 34
i Nordhavet. Fra den norske Rende i Skagerak, hvor der
i Dybet er en constant Temperatur af ö0, stiger Bundtern
peraturen mod Nord med stijfénde Dybde indtil Station 12.
hvor den naar et Maximum af G°.3. for derfra at aftage
videre mod Nord. Samtidig viser Overfladetemperaturen
for Aaret en lignende Gang. Isothermerne (>° til 9ü sænke
sig mod Hundtemperaturens Maximums Plads. Paa
Pendens Affald mod Dybet findes 0° i 350 Favnes l)yb og
lidt hengere ude. i Station No. 18. i 300 Favnes Dyb.
Isothermen for — 1" (— 0°.95) drager sig opad langs
Bunden.
Tversnit VIII. Pl. X. gaar fra Island (Berufjord,
Papey) mod Øst i en svag Bue til Christiansund. I
Midten stikker Færo-Banken op, og udenfor Christiansund,
mellem Stationerne 32 og 2t> sees den bratte Skraaning
udenfor Storeggen. 1 dette og alle de følgende Snit
indtage Kuldegrader alle de dybere Lag. • [ den vestlige
Halvdel ei’ der Varmegrader paa Islancl-Færø-Ryggen.
Østenfor denne gaar 8° merkelig langt ned i Dybet, men
i de overste Lag er mindre vannt Vand. Omtrent over
Færo-Bankens Afheld stige Isothermerne noget opad. I
dell østlige Halvdel sænke de sig idetheletaget henimod
Norges Ivystbaiiker. Paa disse er Varmegrader, men det
er mindre varmt inde under Land end ude paa Banken
(Storeggen). Isothermen for 0° ligger højest (240 Favne)
paa Island-Fan’rt-Ryggen og ved Station No. 34 i den
østlige Del (280 Fv.) Den sænker sig til 400 Favne ved
Station No. 41 i Vest og paa Skraaninger udenfor
Storeggen. Isothermen for — 1° sænker sig ned i Dybet
nordenfor Færoerne. men holder sig paa den vestlige Side af
Indløbet til Færø-Slietland-Reiiden. Mellem Mundingen af
den norske Rende og Storeggens Yderskraaning ligger den
langs Bunden.
Tversnit IX ligger paa den (i4. Breddegrad og gaar
over Fro-Øerne. Man gjenfinder de samme Træk som i
det foregaaende Tversnit. I den Fordybning, som Fro-
aeross the Færoe-Shetland Channe], through the "Porcupine"
Station 04. The isothermobaths are based here exclusively
on "Porcupine" observations, in the middle consisting of
serial temperatures, on either side ol’ bottom-temperatures
alone, taken near the section in the respective depths.
The isotherms 1° to 7° incline considerably throughout the
eastern half towards the Shetland Bank. Here, accordingly,
the wannest water is found to accumulate. The isotherm
for 0° has a similhr though less rapid incline. In the
middle part it lies at a depth of 320 fathoms. The
isotherm for — 1°, on the other hand, sinks in the middle
and rises on either side. Hence the coldest water makes
its way up both sides of the slopes.
Section VII extends from Station No. i»4. at I’dsire,
along the Norwegian Channel, towards the NNAV. as
far as Station 34, in the North Ocean. From the
Norwegian Channel, in the Skagerak, where the deep has a
constant temperature of 5", the bottom-temperature rises
towards the north with increasing depth as far as Station
12, at which point it reaches a maximum of 6°.3, and
then falls oil" towards the north. At the same time the
annual surface-temperature exhibits .a similar variation.
The isotherms for 0° to 9° sink in the direction where the
bottom-temperature has its maximum. On the slope of the
channel towards the deep. 0" occurs at a depth of 350
fathoms, and a little farther out, Station No. 18. at a
depth of 300 fathoms. The isotherm for — 1° ( 0".95)
makes its way upwards along the bottom.
Section No. VIII, Pl. X. extends from Iceland
(Berufjord, Papey) towards the east, in a. faint curve, as
far as Christiansund. In the middle part, the Fa>roe Bank
juts up, and off Christiansund, between Stations 32 and
2(5, may be seen the precipitous slope off the Storeg.
In this and all the following sections, temperatures below
0° occur throughout all the deeper strata. In the western
half, temperatures above 0° are observed on the
Iceland-Færoe’ Ridge. East of the latter, 8° descends to a
remarkable depth; but in the uppermost strata the
water is less warm. Very nearly above the decline of the
Færøe Bank, the isotherms exhibit an upward tendency.
In the eastern half, they sink as a rule in the direction of
Norway’s coastal banks. Over these occur temperatures
above zero; but the temperature is not so high near land
as out on the bank (the Storeg). The isotherm lor 0°
lies highest (240 fathoms) on the Iceland-Færoe Ridge, and
at Station No. 34, in the eastern part (280 fathoms). It
sinks to a depth of 400 fathoms at Station 41. located
west, and on the slope off the Storeg. The isotherm
for — 1° sinks down into the deep north of the Færoes,
but keeps on the western side of the entrance to the
Færoe-Shetland Channel. Between the mouth of the
Norwegian Channel and the outer slope of the Storeggen Bank,
it extends along the bottom.
Section IX lies on the 64th parallel of latitude, and
passes across the Fro Islands. We meet with she same
characteristics as in the preceding transverse section
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