Farvandet i Nordost for Færøerne. 
Fortsættelse mod Syd i Øst for Færøerne betragter jeg 
tildels som en Virkning af de dybere kolde Lag paa Over- 
fladens Temperatur. Temperaturen i Thorshavn er anta- 
gelig lavere end i Havet udenfor, paa Grund af Strøm- 
Dens tilsyneladende 
ningerne i Sundene. * 
En femte Kuldeaxe gaar langs Grønlands Østkyst 1 
Danmarkstrædets vestlige Del, hvor Nulgradsisothermen 
bøjer sig hen imod Cap Farvel. 
Pl. XVII viser Temperaturens Fordeling i 100 Fay- 
nes Dyb. Fra Atlanterhavet skyde varme Tunger op mod 
Nordhavet, vestenfor og nordentor Island (7°, 6°, 5°, 4° 
og 3°), mellem Island og Færøerne (8°) og langs Banken 
udenfor Hebriderne (10°) og Shetland (9°). I den inderste 
Del af den norske Rende er Temperaturen 6°. Fra Nord- 
søbankens Spids ved Mundingen af den norske Rende 
skyde sig lange varme Tunger (8°, 7°, 6°, 5°) mod NNE 
udenfor Norges Vestkyst. Isothermerne ‘for 6° og for 5° 
udskyde et Par Sidegrene mod Vest, den nordligste fra 
Lofoten henimod Jan Mayen. Paa Tungernes østre Side 
aftager Temperaturen henimod Kystbanker, 
der saaledes ere omgjerdede af forholdsvis koldere Vand. 
de norske 
Dette Fænomen optræder i fremtrædende Grad omkring 
Øerne i Vest-Lofoten, hvor Temperaturen i 100 Faynes 
Dyb kun er lidt over 4"5. I det inderste dybe Bassin i 
Vestfjorden er der i dette Dyb 6° og derover. I Østhavet 
skyder en varm Tunge (49) sig ind over den sydlige Del 
mellem Nordkap og Beeren-Eiland. Længere Øst deler 
Tungen sig i to Dele; den ene følger (89%, 2°, 1°) Fin- 
marks- og Murman-Kysten, den anden vender sig mod 
Nordost. Lange, smale Varme-Tunger gaa (4°, 3°) uden- 
for Spidsbergens Vestkyst lige op til den 80. Breddegrad. 
Under denne Kyst er det merkelig koldere paa Banken. 
Vestenfor Is-Fjorden, Greenwich Meridian, sees en løsrevet 
Vandmasse med Varmegrader midt inde 1 Kuldegradernes 
Omraade. 
I Østhavet skyde kolde Tunger sig ned mod den 
Murmanske Kyst og mod Spidsberg-Beeren-Hiland-Banken. 
Fra Gronlandshavet 75. Breddegrad vestenfor 
Greenwich Meridian skyde kolde Tunger sig mod Sydost 
henimod Vesteraalen (70° N. Br. 1205 H. Lg.). En kold 
Tunge gaar sydover østenfor Jan Mayen, medens der paa 
Jan Mayen-Bankens Vestside findes en nordgaaende Tunge 
Mellem Jan Mayen og Island skyder 
fortsætter, med 
paa den 
med varmere Vand. 
en megtig kold Tunge sig mod SSE og 
Varmegrader, nordenom Færøerne. hvor den sender en 
Arm mod Øst og en anden Arm mod Syd, der optager 
Om 
visse Virkninger af Strømme paa Vandets og Luftens Temperatur. 
1 Christiania Videnskabsselskabs Forhandlinger for 1873. 
72 
ter, proceeding thence towards the south-east, as far as 
the tract of ocean lying north-east of the Færoe Islands. 
Its apparent continuation southwards, east of the Færoes, 
I attribute partly to the action of the deeper cold strata on 
the temperature of the surface. The temperature at Thors- 
havn is presumably lower than in the open sea round the 
Feroes, owing to the currents in the sounds. ! 
A fifth axis of cold extends along the east coast of 
Greenland, in the western part of Denmark Strait, where 
the isotherm for 0° curves towards Cape Farewell. 
Pl. XVII shows the distribution of temperature at a 
depth of 100 fathoms. From the Atlantic, warm iso- 
thermal tongues shoot up towards the North Ocean, west 
and north of Iceland (7°, 6°, 5°, 4°, and 3°), between Ice- 
land and the Færoes (8°), and along the bank lying off 
the Hebrides (10°) and the Shetlands (9°). Throughout 
the innermost part of the Norwegian Channel, the tempera- 
ture averages 6°. From the extremity of the Norfh-Sea 
Bank, at the mouth of the Norwegian Channel, long warm iso- 
thermal tongues (8°, 7°, 6°, 5°) extend towards the NNE, off 
the West Coast of Norway. for 6° and 5° 
send off a couple of lateral arms towards the west, the 
most northerly from Lofoten in the direction of Jan 
Mayen. On the eastern side of the isothermal tongues, 
the temperature is found to diminish towards the Norwe- 
gian coastal banks, which accordingly are encompassed by 
This phenomenon occurs in a 
The isotherms 
relatively colder water. 
very prominent degree round the islands of West Lofoten, 
where the temperature at a depth of 100 fathoms is but 
little more than 4°.5. In the deep innermost basin of 
the Vestfjord we have at this depth 6° and upwards. In the 
Barents Sea, a warm isothermal tongue (4°) extends through 
the southern tract, between the North Cape and Beeren Hiland. 
Farther east, this tongue divides into two parts, one (3°, 
2° 1°) following the Finmark and Murman coasts, the 
other passing north-east. Long, narrow tongues of heat 
(4° and 3°) extend along the west coast of Spitzbergen straight 
up to the 80th parallel of latitude. Off this coast the water 
is appreciably colder on the bank. West of Ice Sound, 
on the meridian of Greenwich, occurs an isolated patch 
exhibiting degrees above 0°, in the very region of the ice- 
cold water. 
In the Barents Sea, cold isothermal tongues descend 
towards the Murman coast and the Spitzbergen-Beeren- 
Eiland Bank. From the Greenland Sea, on the 75th parallel 
of latitude, west of the meridian of Greenwich, cold iso- 
thermal tongues strike off south-east towards Vesteraalen 
(lat. 70° N, long. 12°5 FE). A cold isothermal tongue 
extends southward, east of Jan Mayen, whereas on the 
western side of the Jan-Mayen Bank we find a tongue of 
warmer water passing northward. Between Jan Mayen 
and Iceland, a most extensive cold isothermal tongue strikes 
off towards the south-south-east, passing on, with de- 
1 On certain Effects of Currents on the Temperature of the 
Sea and the Air. Journal of the Scottish Meteorological Society, Vol. 
TV No Dees S35 ps 89 
