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.
Sl
fjorden og Vestfjorden, vise lignende Forhold, og til samme
Klasse slutter den norske Rende i Skagerak sig.
Istedetfor en Kystbanke med jevn Overflade har man paa
saadanne Steder Dybbassiner i Fonn af forholdsvis smale
Render, der gaa i Fjordens Retning. Paa enkelte Steder
synes et saadant Dybbassins Udstrækning at være saa ringe,
at det endog ikke har fundet Plads paa Opmaalingens
Dybdekarter.
I 1871 foretoges den förste nøjagtigere
Temperatur-maaling i Dybet af en norsk Fjord, idet Professor Sexe
velvilligen imødekom min Anmodning derom og maalte
Temperaturen i Sorfjorden i Hardanger med et
Miller-Ca-sella-Therinometer. Siden den Tid er Temperaturen i
Dybet af vore Fjorde og paa Bankerne jevnlig bleven
undersøgt af forskjellige Expeditioner. Resultaterne heraf
indtil 1875 ere meddelte i Petermanns Geographische
Mit-theilungen for 187G, Side 432—434. Derpaa følge
Xord-havs-Expeditionens Undersøgelser, hvis Resultat ovenfor er
meddelt i Tabellen Side 44—Gl. Fra 1879 af er der hvert
Aar taget Dybtemperaturer fra Qplodningsdanipskibet
"Hansteen" med Negretti & Zambra’s Vendetherniolrneter,
verificeret saavel ved det meteorologiske i nstitut som ved directe
Sammenligning ombord med Normaltherttlömeter. Disse
interessa,nte Observationer, der velvilligen ere mig overladte
til Afbenyttelse, betegner jeg i det følgende med jH. No. 1,
H. No. 2 o. s. v.
Idet jeg nu gaar over til den følgende Discussion af
Temperaturiagttagelserne paa vore Banker og i vore Fjorde,
begynder jeg med den norske Rende i Skagerak og folger
derfra. Kysten nordover.
T. Skagerak-Renden fandt den tyske
"Pommerania"-Expedition i 1872 omkring G0 i 100 Favnes Dvb og 5°.0
til 5°.9 i 200 Favnes Dyb samt 5°.0 i Dybder omkring
300 Favne. Med "Hansteen" inaaltes følgende
Temperaturer (den første Rælcké med Miller-Casella, den anden
med Negretti & Zambra’s Vendethermometer).
fjord, exhibit similar depressions, and to this class belongs
the Norwegian Channel, in the Skagerak. In place of a
coastal bank with an even surface, we have in such localities
deep basins, taking the form of comparatively narrow
channels. that follow the direction of the fjord. In some places,
the extent of such a deep basin would seem to be so trifling,
that Ille Geographical Survey has not found room for it
in the deep-sea charts.
In 1871. was undertaken the first trustworthy
measurement of temperature in the depths of a Norwegian fjord.
Professor Sexe having kindly acceded to my proposal and
registered the temperature in the Sørfjord, Hardanger,
with a Miller-Casella thermometer. Since then, the
temperature in the depths of our fjords, and on the banks, has
been periodically determined on various Expeditions. The
results, np to 1875, will be found in Petermann’s
Geographische Mittheilungen for 1870. p. 432—434. Next
come the explorations of the Norwegian North-Atlantic
Expedition, the results of which have been given in the
Table, j). 44—Gl. Dating from the year 1879. deep-sea
temperatures have been taken every year by the Coast Survey
steamer "Hansteen." with Negretti and Zambra’s
inverting-thermoineter, verified alike at the Meteorological Institute
anil by direct comparison on board with the Standard
Thermometer. These interesting observations, kindly placed at
my disposal, 1 shall designate in the sequel H. No. 1.
H. No. 2, and so on.
Proceeding now to discuss the temperature-observations
taken on the Norway banks and in the fjords, I shall
begin with the Norwegian Channel, in the Skagerak,
following from thence the coast northwards.
In the Skagerak Channel, the German ••Pomnierania"
Expedition found, in 1872, about 6° at a depth of a
hundred fathoms, 5°.0 to 5°.9 at a depth of 200 fathoms, and
5°.0 at a depth of 300 fathoms. On board the
"Hansteen,’’ the following temperatures were registered — the
first series with the Miller-Casella. thermometer, the others
with Negretti & Zambra’s inverting instrument.
58° 1
Dybde i Favne.
lSTT. Sept. 4.
X. Hr. !l° 1*2’ E. Lgd.
H. No. 2
1880. Maj 20.
’ N. Er. 9° O’ E. Lgd.
Dybde i Favne.
(J’athoms.) (Fathoms.)
O 0 i3°-3 0 0 9°.S
IO 18 7 -9 5: 9 9 .0
20 37 5 -7 10 18 8 .8
30 55 5 -o 2C 37 7-7
40 73 5 • ’ SO 55 6 .5
50 91 5 -o 40 73 5 -9
75 137 5 -3 SO 91 5 -7
100 ’83 5 -3 60 110 6.0
150 =74 5 -3 SO 146 6.0
1 (Bottom) 340 623 5 -3 100 ’83 6.0
150 274 6.0
200 366 5 -7
3OO 549 5 -o
Bund (Bottom) 345 631 5 -o
Ordliiivsexpodition. 1 11. Molnt: Nordhavets Dybder, Temperatur og Striiimiingér.
<< prev. page << föreg. sida << >> nästa sida >> next page >>
