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.
135
Temperatur skyder sig op langs Spidsbergens Vestkyst.
Østhavets Bund dækkes af forholdsvis varmt og saltholdigt
Vand.
Paa Pl. XXXVI til XXXVIII er fremstillet den
specifiske Vægts Fordeling i Dybet i de samme større
verticale Tversnit som Temperaturen i Pl. X til XIV.
Tversnittene for den specifiske Vægt ere nummererede med
samme Tal som de for Temperaturen.
I Tversnit VIII, Pl. XXXVI, mellem Berufjord paa
Island og Christiansund, se vi den højeste specifiske Vægt,
1.0270, ved Mundingen af Færø-Shetland-Renden, fra
Overfladen til Bunden. Henimod Xorges Kyst aftager den
specifiske Vægt, og er højere i Dybet end i Overfladen. Det
samme finder Sted henimod Island, men i meget svagere Grad.
Tversnit X gaar fra Langanes paa Island til den
05. Breddegrad ved Norges Kyst. Snittets østligste Del er
ført op paa noget højere Bredde (Tversnit XI, Pl. X) end
Temperatursnittet Pl. X, da der i dette mangler
Maalinger af den specifiske Vægt. Den højeste specifiske Vægt i
dette Tversnit er noget over 1.0208, og denne er
indskrænket til ele øvre Lag; mod Dybet aftager den specifiske
Vægt meget langsomt. Mod Øst og mod Vest aftager den
og bliver under Kysterne lavest i Overfladen.
I Tversnit XIII, fra Jan Mayen-Reiiden til Trænan,
er det af Linien for den specifiske Vægt 1.0208
omsluttede Rum end mere indskrænket. Linien for 1.0267, der
i det forrige Tversnit naaede Bunden i Midten af Havet,
er her løftet op til 300 Favnes Dyb. I dette Tversnit er
tier aabenbart kommet mindre saltholdigt Vand ind fra
Jan Mayen-Renden i dybere Lag. Over de norske
Kyst-banker ligger der ferskere Vand øverst.
Tversnit XV, PI. XXXVII, gaar fra Jan Mayen til
Vesteraalen. Linien for den specifiske Vægt 1.0267, der
i forrige Tversnit kun naaede til 300 Favnes Dyb, sænker
sig her til 1600 Favnes Dyb og naar næsten Bunden i
Havets Midte. Til begge Sider aftager den specifiske Vægt,
sterkest under Kysterne af Norge og Jan Mayen
(Polarstrømmen).
Tversnit XVII, fra Grønland til Loppen, har sit
Maximum af specifisk Vægt, over 1.0266, i den østre Del
af Havet. Lignende Forhold finder Stod i cle følgende Snit.
Det er vecl Havbundens østre ’ Skraaninger, at det salteste
Vand findes, og under Overfladen. I Temperaturens
Fordeling have vi noget tilsvarende, dog ligger Temperaturens
Maximum højere, nærmere Overfladen, end den specifiske
Vægts.
I Tversnit XIX, fra Grønland til Beeren Eiland,
ligger Maximum af specifisk Vægt udenfor Bankens
Skraa-ning strax i Vest for Beeren Eiland og naar, i c. 350 Favnes
Dyb, til lidt over 1.02653. Den specifiske Vægt aftager
of salt. A long, narrow tongue having a higher
proportion of salt and a higher temperature shoots up along the
west coast of Spitzbergen. The bed of the Barents Sea
is covered with comparatively warm and salt water.
In Pl. XXXVI to Pl. XXXVIII, is represented
the distribution of specific gravity in the deep
throughout the same larger vertical sections as temperature in
Pl. X to Pl. XIV. The sections for specific gravity are
numbered with the same figures as those for temperature.
In transverse section VIII, Pl. XXXVI, between
Berufjord in Iceland and Christiansund, we have the highest
specific gravity, viz., 1.0270, at the mouth of the Færoe-Shetland
Channel, from the surface to the bottom. Towards the coast
of Norway, the specific gravity is found to diminish, and to
be higher in the deep than at the surface. The same takes
place towards Iceland, though to a much less extent.
Transverse section X extends from Langanes, Iceland,
to the coast of Norway at the 65th parallel of latitude.
The most easterly part of the section lias been directed
to a somewhat higher latitude (Transverse Section XI,
Pl. X) than the section for temperature, Pl. X, since
measurements of specific gravity are wanting in the latter.
The highest specific gravity in this transverse section rises
to a little above 1.0268, and is confined to the upper strata;
towards the deep, the specific gravity diminishes very slowly.
Towards the east and towards the west it also diminishes,
becoming oft’ the coasts lowest at the surface.
In transverse section XIII, from the Jan-MayOu
Channel to Trænan, the space enclosed by the line for
a specific gravity of 1.0268 is still more circumscribed.
The line for 1.0267, which in the former transverse section
reached the bottom in the middle of the sea, rises up
here to a depth of 300 fathoms.- Into this transverse
section, less salt water has apparently found its way from
the Jan-Maven Channel in the deeper strata. Over the
Norway coastal banks, water with a less proportion af salt
lies uppermost.
Transverse section XV, Pl. XXXVII, extends from
Jan Mayen* to Vesteraalen. The line for a specific gravity of
1.0267, which in the former transverse section did not reach
lower than 300 fathoms, attains here a depth of 1600, and
sinks to well-nigh the bottom in the middle of the sea. On
both sides, the specific gravity diminishes most rapidly off
the coasts of Norway and Jan Mayen (the Polar Current).
Transverse section XVII, from Greenland to Loppen,
has its maximum of specific gravity, viz., upwards of
1.0266, in the eastern part of the sea. Similar conditions
are observed in the following sections. It is along the
eastern declivities of the sea-bed that the saltest water
occurs, and below the surface. In the distribution of the
temperature, we meet with something akin, though the
maximum of temperature lies higher, rather more in proximity
to the surface, than does that of specific gravity.
In transverse section XIX, from Greenland to Beeren
Eiland, the maximum of specific gravity lies off the
declivity of the bank, immediately to the west of Beeren
Eiland, and reaches, at a depth of about 350 fathoms, a
<< prev. page << föreg. sida << >> nästa sida >> next page >>
