havet gjenfindes paa sine Steder paa de tidligere Karter. 
Tsothermen for 0° omspænder i den sydlige Del af det 
norske Hav et betydeligt større Omraade end i de højere 
Niveauer. 
Pl. XXI viser Temperaturens Fordeling i 500 Fav- 
nes Dyb. I Atlanterhavet er Varmegrader, 2°.9 under 
Islandsbanken, 8°.1 under Wyville-Thomson-Ryggen. I det 
norske Hav ere Varmegraderne indskrænkede til Partiet 
omkring den 70. Breddegrad mellem Jan Mayen og Vester- 
aalen, hvor et Par Maxima paa 29 optræde, det ene under 
Land, det andet længere mod Vest, og hvorfra der udgaar 
mod Nord en lang smal Tunge til Spidsbergen, Indenfor 
denne Tunge, nærmere Banken, er der Kuldegrader. Mod 
Vest følger Isothermen for — 19 langs den for 0° fra Nord- 
vest-Spidsbergen til Jan-Mayen-Banken. Paa dennes Vest- 
side bøjer den ind som en Varme-Tunge, og fortsætter som 
en Kulde-Tunge langs Islands-Banken. I Færø-Shetland- 
Renden er det koldest i Midten, under — 1°. Lignende 
lav Temperatur træffes langs Norges Banker fra 689 til 
68° Bredde, medens Temperaturen er højere midt 1 Havet. 
Pl. XXII viser Temperaturens Fordeling 1 600 Fay- 
nes Dyb. I Atlanterhavet er fremdeles Varmegrader, over 
6° 1 Sydvest for Færøerne. I det norske Hav ere Varme- 
graderne indskrænkede til et enkelt Parti omkring den 
71. Breddegrad, der omeirkles af Isothermen for 0°, og 
som støder nærmest til Land udenfor Vesteraalen. Iso- 
thermerne for — 09.5 og — 1° danne Tunger udenfor Bee- 
ren-Eiland og Spidsbergen, med koldere Vand langs Ban- 
ken. Isothermen for — 1° har forøvrigt meget nær samme 
Løb som 1 500 Favne. Den løber langs Banken fra 
Færø-Shetland-Renden til Vesteraalen og har her varmere 
Vand vestenfor sig. 
Varmegraderne naa 1 Nordhavet ikke ned til 700 
Favnes Dyb. I de følgende 3 Karter, der vise Temperaturens 
Fordeling i 1000 og i 1500 Favne samt ved Bunden, har 
jeg, forat tydeliggjøre denne, optrukket Isothermerne for 
— 1° og for hver Tiendedels Grad under — 1°. Herved 
er der, ligesom i Vertical-Snittene, taget Hensyn til de i 
Tabellen Side 44—61 opførte Hundredele af Grader. Som 
ovenfor Side 39 anført, kunne Bundtemperaturerne ansees 
sikkre paa mindre end + 00.05. 
Pl. XXIII viser Temperaturens Fordeling i 1000 
Favnes Dyb. I den sydligste Del af det norske Hav er 
et Maximum, der omeirkles af Isothermen for — 1°, med 
lavere Temperatur paa alle Sider. Et lignende Maximum 
ligger ved den 70. til 71. Breddegrad i Lofotdybet. Begge 
Maxima omsluttes af Isothermen for — 19.1. Isothermen 
/ 
a depth of 600 fathoms. 
to the bank, as far down as 0° on the 80th parallel of 
latitude. Immediately to the north of lat. 75° N, the ice- 
cold tongue from the Storfjord asserts its influence. The 
cold isothermal tongues from the Greenland Sea are again 
met with in their former places on the previous maps. 
The isotherm for 0° encloses in the southern part of the 
Norwegian Sea a much more extensive space thar at 
higher levels. 
Pl. XXI shows the distribution of temperature jat a 
depth of 500 fathoms. In the Atlantic, the temperature is 
above 0°, reaching 2°.9 at the Iceland Bank and 8°.1¥at the 
Wyville-Thomson Ridge. In the Norwegian Sea, the tem- 
perature above O° is confined to the tract about the 
70th parallel of latitude, between Jan Mayen and Vester- 
aalen, where a couple of maxima of 2° are found to occur, 
one near the coast, the other farther west, and whence a 
long, narrow isothermal tongue stretches north to Spitz- 
bergen. On the inner side of this tongue, at the bank 
occurs a temperature below 0°, Towards the west, the 
isotherm for — 1° runs parallel to that for 0°, from the 
north-west of Spitzbergen to the Jan-Mayen Bank. On the 
western slope of the latter, it bends up as a tongue of 
of heat, and passes farther on as a tongue of cold along 
the Iceland Bank. In the Færoe-Shetland Channel, it is 
coldest in the middle part, viz., below — 1°. A similar low 
temperature is met with along the Norwegian banks, from 
lat, 63° to 68° N, whereas the temperature is higher in 
the central part of the sea, 
Pl. XXII shows the distribution of temperature at 
In the Atlantic, temperatures 
above 0°, more than 6°, south-west of the Feroes, con- 
tinue to occur. In the Norwegian Sea, we have water 
above 0" confined to a single tract, extending round the 
71st parallel of latitude, which is enclosed by the iso- 
therm for 0°, and approaches land nearest Vesteraalen. 
The isotherms for — 095 and — 1° form tongues off 
Beeren Eiland and Spitzbergen, with colder water along 
the banks. The isotherm for — 1° takes, for the rest, 
much the same course as in 500 fathoms. It extends 
along the bank from the Færoe-Shetland Channel to Vester- 
aalen, and has here warmer water on the western side. 
A temperature above 0° in the North Ocean does 
not reach down to a depth of 700 fathoms. In the fol- 
lowing 3 maps, showing the distribution of temperature 
at depths of 1000, 1500 fathoms, and at the bottom, 
I have drawn the isotherms for — 1° and for every tenth 
of a degree under — 1°. When so doing, regard was 
taken, as with the vertical sections, to the hundredths of 
degrees given in the Table p.p.44—61. As stated above, 
p. 39, the bottom-temperatures may be considered trust- 
worthy within + 00.05. 
Pl. XXIII shows the distribution of temperature at 
a depth of 1000 fathoms. In the most southern part of 
the Norwegian Sea, we have a maximum of temperature 
shut in by the isotherm for —19, on all sides with a lower 
temperature. A similar maximum occurs, from the 7Oth 
to the 71st parallel of latitude, in the Lofoten Deep. 
10* 
