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.
15
fortsættes med Afslutningen af Undersøgelserne af Bankerne
udenfor Romdalskysten henimod Shetland.
Fra dette Felt kommer man videre vestover til den
dybe Rende mellem Shetland og Færøerne, der. navnlig i
dens sydvestre Del. har været Gjenstand for Porcupine
Expeditionens Undersøgelser. Dens nordøstre Del vil det
blive den norske Expeditions Opgave at undersøge nærmere
og studere dens Overgang til det kolde Ishavsdyb. Paa
denne Strækning ville Iagttagelser af Strømforholdene samt
Undersøgelse af Havvandets Beskaffenhed i de forskjellige
Dybder, til hvilke Forholds Undersøgelse den norske
Expedition antagelig vil være bedre udrustet end den nævnte
Britiske, kunne blive af fundamental Betydning for
Havstrømmenes Theori.
En Betingelse for Held er imidlertid roligt Vejr.
Efter Afslutningen af Undersøgelsen af Færø-Shetland
Renden, vil det af flere Grunde, der nedenfor ere nævnte,
være hensigtsmæssigt, at man anløber Thorshavn paa
Færøerne, for at forberede sig til Undersøgelsen af
Strækningen mellem Færøerne og Island.
Undersøgelserne paa denne Strækning ville omfatte
Forholdene ved Overgangen fra det forholdsvis grunde Hav
mellem Færøerne og Island, der endnu tilhører
Atlanterhavet, til det kolde Ishavsdyb, der ligger østenfor. Her
kommer Expeditionen til at arbejde paa et saagodtsom i
alle Henseender aldeles nyt Felt. hvad der ogsaa gjælder
de følgende Strækninger.
Paa Island er det nødvendigt at foretage lignende
magnetiske Iagttagelser som dem. der ere tænkte udførte paa
Utvær. Antagelig vil Reykjaviks Havn i denne Henseende
frembyde en bekvem Lejlighed.
Mellem Kap Farvel og Island er der i sidste
Sommer af Chefen for den britiske Fregat -’Valorous,’’ Captein
Jones, udført en Række Iagttagelser af Dybtemperatur i
Forbindelse med Bundskrabninger. Denne Række udfylder
paa en efter Omstændighederne tilfredsstillende Maade
Overgangen ■ mellem de tidligere undersøgte Dele af
Atlanterhavet og den Linie, der — som dannende Overgangen
fra Atlanterhavet til vort arktiske Havbassin — maa blive
at sætte som den vestlige Grændse for den norske
Expeditions Undersøgelsesfelt, nemlig Linien gjennem de
Stræder og Havstrækninger, der adskille Shetlandsøerne,
Færøerne, Island og Grønland.
For at fuldstændiggjøre Undersøgelserne paa denne
Linie bliver det den norske Expeditions Opgave at forsøge
undersøgt Strækningen mellem Island og Grønland, en
Opgave, hvis Løsnings Vigtighed Dr. Carpenter, en af
Deltagerne og Lederne af flere af de britiske
Dybhavsexpedi-tioner. med Styrke har gjort opmerksom paa.
of the Expedition can be continued, by closing the
investigation of the banks off the coast of Romsdalen in the
direction of the Shetland Islands.
Westwards from this tract extends the deep channel
between the Shetlands and the Færoe Islands," which — in
particular its south-westerly portion — was explored on
the "Porcupine" Expedition. The north-eastern part,
together with the how and where this channel passes into
the depths of the Arctic Ocean, will be made a subject
of special investigation by the Norwegian Expedition.
Observations on the direction and rate of the currents
throughout this section of the channel, and on the chemical
constituents of the water at different depths, which the
Norwegian Expedition, from the character of its equipment,
will, it is believed, have greater facilities for instituting
than had the above-mentioned British Expedition with the
"Porcupine," may prove of fundamental importance in
elucidating the theory of ocean currents.
Meanwhile, a sine qua non for achieving success is
favourable weather.
After terminating the investigation of the
Færoe-Shet-land channel, it will, for divers reasons, specified below,
be advisable to touch at Thorshavn on the Færoe Islands,
previous to exploring the ocean-tract between the Færoe
Islands and Iceland.
In this locality, the Expedition will investigate the
nature of the transition from the comparatively shallow sea
(part of the Atlantic) between the Færoe Islands and
Iceland to the depths of the Arctic Ocean, stretching
eastwards. Here, the exploratory work will be in a field
essentially new, which also applies to the succeeding tracts.
In Iceland, magnetical observations must be instituted
similar to those the Expedition will take at Utvær. For
this purpose, the port of Reykjavik is believed to be a
convenient locality.
Last summer a series of deep-sea temperatures, in
connexion with dredgings, were taken by Loftus Jones,
captain of the British frigate "Valorous,’’ between Cape
Farewell and Ireland. These observations have, as far as
circumstances would permit, contributed greatly to our
knowledge of the part of the Ocean lying between the
sections of the Atlantic previously investigated and the line
which — constituting as it does the. boundary between the
Atlantic and the basin of the Arctic Ocean — must
be regarded as the western limit of the region it is the
object of the Norwegian Expedition to explore, viz. the
line passing through the straits and tracts of ocean that
extend between the’ Shetlands, the Færoe Islands, Iceland,
and Greenland.
With a view to render the investigation along this
boundary-line as complete as possible, the Norwegian
Expedition will endeavour to explore the tract between
Iceland and Greenland, — a problem to the importance
of which Dr. Carpenter, member and co-director of several
of the British (leep-sea Expeditions, has repeatedly drawn
attention.
<< prev. page << föreg. sida << >> nästa sida >> next page >>
