Full resolution (JPEG) - On this page / på denna sida - Sidor ...
<< prev. page << föreg. sida << >> nästa sida >> next page >>
Below is the raw OCR text
from the above scanned image.
Do you see an error? Proofread the page now!
Här nedan syns maskintolkade texten från faksimilbilden ovan.
Ser du något fel? Korrekturläs sidan nu!
This page has never been proofread. / Denna sida har aldrig korrekturlästs.
merkeligste i dette Snit er et Temperatur-Minimum paa
1°.3 inde paa Banken, omgivet paa begge Sider af
Varmegrader. Dette er Tversnittet gjennem en Tunge ai’
iskoldt Vand. der langs Bunden skyder sig frem fra
Storfjorden østenfor Spidsbergens Sydkap, som Kartet over
Bundtemperaturerne (Pl. XXV) viser.
Tversnit XXI gaar fra SAV mod NE mellem den
7"). og 7(>. Breddegrad söndenfor Spidsbergens Syd kap fra
Nordhavsdybet til Storfjorden. Det gaar langs
Længde-axen af den under forrige Tversnit omtalte iskolde Kile.
En Temperaturrække af Weyprecht udenfor Sydkap (W)
s utter sig ganske til de norske. Maximumstemperaturen,
over 4". ligger under OverHaden. Da Bundtcniperatiirerne
paa Banken, regnet trå NE mod SW, give Tallene 1°. 1.
— 1°,3 og 0".4 har jeg antaget, at selve Nulgradslinien
tindes strax udenfor (vestenfor) Station 328, og at den
iskolde Kile paa Banken ikke rækker ned i Nordhavsdybets
iskolde Vand, hvor 0", efter Bundtemperaturkartet, forst bliver
at søge i 500 Favnes Dyb. Formen for Isothermen for
1°, der fjerner sig fra Bankens bratte Skraaning, tyder dog
paa, at den kolde Kile fra. Storfjorden ved sin "Vest-Ende
udøver en merkelig Afkjøling, som imidlertid ikke kan
antages at bringe Temperaturen paa Banken mellem 220 og
500 Favne helt ned til 0°.
Tversnit XXII, Pl. XIII, gaar fra Grønland (75°
N. Br.) over Svenskedybet til Spidsbergens Sydkap. Den
højeste Temperatur, 4°, ligger som et afsluttet Parti under
Overfladen udenfor Banken. Alle Varmegrader ligge paa
Østsiden, ved Spidsbergen. Nul Grad naar ned til 500
Favne. Isothermerne tor 1° til — 1°.4 skyde i de øvre
Lag en Tunge østover fra Grønlandshavet. I Svenskedybet
er fundet — 1°.5.
Tversnit XXIII gaar fra Grønland (7G° 25’ N. Br.)
over Svenskedybet til Isfjorden paa Spidsbergens Vestkyst.
Den højeste Temperatur, over 3°, ligger over Kystbankens
Eg, men under Overfladen. Inde i Isfjorden er det koldere,
saavel i Overfladen, som ved Bunden, hvor Kuldegrader
tneffeç. Varmegraderne indtage et indskrænket Rum
udenfor Spidsbergen og gaa ned til 500 Favne. Ved Station
351 træffes et løsrevet Parti Vand med Varmegrader i
omkring 100 Favnes Dyb. I Grønlandshavets Dyb er
Temperaturen under — 1°.5.
Tversnit XXIV gaar over Spidsbergbanken udenfor
Prins Charles Foreland langs den 79. Breddegrad.
Isothermen for 2° sænker sig udenfor Banken ned til henimod
Zero is met with at a depth of 480 fathoms. The most
remarkable characteristic in this section consists of a
minimum-temperature, - 1°.3, on the bank itself, shut in on
both sides by degrees above 0°. This transverse section
cuts through a tongue of ice-cold water, pressing forward
along the bottom from the Storfjord, east of the southern
extremity of Spit/bergen, as shown by the Map of
Bottom-Temperatures (Pl. XXV).
Section XXI extends from the SW towards the NR,
between the 75th and the 76th parallels of latitude, south
of the southern extremity of Spitsbergen, from the
North-Ocean Deep to the Storfjord. It passes along the
longitudinal axis ol’ the ice-cold wedge alluded to when
describing the preceding transverse section. A serial
temperature taken by Weyprecht ofl’ South Cape. Spitsbergen
(Wl. agrees in every respect with those of the Norwegian
explorers. The maximum-temperature, upwards of 4°,
lies below the surface. The bottom-temperatures on the
bank, from NE towards SAV, giving the figures — l°.l.
— 1°,3, and — 0°.4. I have ventured to assume that the
line for 0° occurs immediately ofl’ (west of) Statiqn 32S.
and that the ice-eold water on the bank does not reach
down into the ice-cold water of the North-Ocean Deep,
where 0°, according to the Map of Bottom-Temperatures, does
not make its appearance at a. depth of less than 500 fathoms.
The form of the isotherm for 1°, which extends from the
steep declivity of the bank, would seem however to imply
that the ice-cold wedge from the Storfjord exerts at its
western extremity an appreciable cooling influence, but
which cannot be assumed to bring the temperature on the
bank, between 220 and 500 fathoms, fully down to 0°.
Section XXII, Pl. XIII, ’extends from Greenland
(lat. 75° N) across the Swedish Deep to the southern
extremity of Spitsbergen. The highest temperature. 4°,
extending, so to speak, as an isolated patch, lies beneath the
surface, oft’ the bank. All degrees above occur on the
east side, off Spitsbergen, and 0" reaches down to 500 fathoms.
The isotherms for — 1° to — 1°.4 send off eastwards in
the upper strata a tongue of water from the Greenland
Sea. In the Swedish Deep, a temperature of 1°.5 has
been registered.
Section XXIII extends from Greenland (lat: 70° 25’
N) across the Swedish Deep to lee Sound, on the west
coast of Spitsbergen. The highest temperature, more than 3°,
occurs over the edge of the coastal bank, but below the
surface. In lee Sound, some distance from the month,
the water is colder, both at the surface and at the bottom,
where a temperature below 0° is observed. The
temperatures above 0° occupy a confined space off the coast
of Spitsbergen, and descend to a depth of 500 fathoms.
At Station 351 there is an isolated patch of water with a
temperature above 0° at a depth of about 100 fathoms.
In the Deep of the Greenland Sea the temperature is below
— 1°.5.
Section XXIV extends across the Spitsbergen Bank,
off Prince Charles Foreland, along the 79th parallel of
latitude. The isotherm for 2° sinks off the bank to a depth
<< prev. page << föreg. sida << >> nästa sida >> next page >>
