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1««
Stilt. No. 3(>:; ;?(>j :;<>s 871 H, H„ Hm G, (in G in
W 0.450 0.500 0.390 0.500 0.625 0.820 0.850 0.600 0.700 0.775
D 0.085 0.144 0.149 0.491 0.353 0.438 0.459 0.229 0.315 0.400
S 0.535 0.644 0.539 0.991 0.977 1.258 1.309 0.829 1.015 I-I75
Strømfladou. Pl. XLIII, constateredes saaledes.
Værdierne af S afsattes i Kartet. For hver 5. Længdegrad,
Kartets Meridianer,, og for hver S’,. Breddegrad fra 55°
til 811° construerede« Tversnit af Tæthedsfladen og af
Vindfladen paa samme Alisoisselinie, efter Kartets Maalestok.
De to Fladers Ordinater adderedes (grafisk) sammen.
Gjennem de saaledes fundne Punkter droges StromHadens
Tversnit. Denne Curves Skjæringslinier med Hurizontallinierne
i Snittet for hver Decimeter afsattes i Kartet langs do
respective Meridianer og Paralleler. Gjennem de saaledes
fundne Punkter droges Ligeliojdelinierne’i Kartet PI. XLIII
for hver Decimeter og afpassedes i Mellemrummene efter
Tabellens Van-dier for S.
StromHaden er i Forhold til Niveaufladen en hul
Flade, der har sit dybeste Punkt mellem Jan Mayen og Norge
i 68®.ö N. Br. og 1" AV. Lgd. I dette Punkt ligger den
kun nogle faa Millimeter lavere end Kartets inderste
Lige-hojdelinie, den for 0.000 Metei. Fra dett.’ dybeste Punkt
lofter Strømfladen sig til alle Sider. Den naar sin største
Højde–over Niveaufladen gjennem dens dybeste Punkt —
ved Norges Vestkyst ug i Skagerak. hvor den stiger til over
1.4 Meter. Ved Grønland naar dell en Højde af 1.4 Meter,
ved Spidsbergen 1.0 Meter, ved Novaja Senilja 1.2 Meter,
ved Finmarkens Kyst 0.» Meter, ved Skotlands Kyst 1.0
til 1.1 Meter og ved Islands Nordkyst 0.6 Meter. Ved
Jan Maven er Højden 0.6 Meter, men veil Beeren-Eiland
kun 0.3 Meter.
The current-surface, Pl. XLIII, was constructed as
follows. The values of -S’ were set off on the map. For
every fifth degree of longitude, the meridians of the map,
and for every two and a half degrees of latitude, from the
55th to the 80th parallel, were constructed transverse
sections of the surface of density and of the wind-surface on
the same line of abscissa1, according to the scale ut’ the
map. The orilinates of the two surfaces were added together
(diagrainmatically). Through the points thus determined
were drawn the transverse sections of the eurrent-surtaee.
The points of intersection of this curve with the horizontal
lines for every decimetre in the section, were set off on the
map along the respective meridians and parallels. Through
the points thus determined were drawn the lines of equal
height. Oil the map, PI. XLIII, for every decimetre, and
adjusted throughout the intermediate spaces according to the
values in the Table for S.
Tile current-surface, compared to the surface of
level, is hollow, and has its deepest point between .Tan
Mayen and Norway, in lat. 68°,5 X and longitude 1» W.
At this point, it lies but a few millimetres deeper than the
map’s innermost line of equal height, viz., that for O.OOO
metre. From this its deepest point the current-surface rises
on all sides. It reaches its greatest height — above the
surface of level through its deepest point — at the West Coast
of Norway and in the Skagerak, where it rises to upwards
of 1.4 metre. At Greenland it reaches a height of 1.4
metre; at Spitzbergen 1.0 metre; at Novaja Senilja 1.2
metre; at the coast of Finmark 0.9 metre; at. tile coast of
Scotland 1.0 to 1.1 metre; and at the north coast of
Iceland 0.6 metre. At Jan Mayen the height is 0.6 metre;
but at Beeren Eiland only 0.3 metre.
10. Strømningerne i Overfladen.
Strømfladen, Pl. XLIII, giver det bedste Billede af
Vandets normale Bevægelse i Havets Overflade.
Bevægelsens Botning er langs Ligehojdelinierno. eyelonisk. med de
større Højder til Højre, de mindre til Venstre, som udtrykt
ved de paa Kartet satte Pilespidser. Man bemerker, at
langs Norges Kyst er Niveauet faldende fra Syd mod Nord,
hvad der giver ell Heldning, som tillader Tyngden at
overvinde Plietionen langs Kysten. Denne Heldning skyldes
det fra Landet udflydende ferske Elvevand. Det samme
er Tilfældet ved Grønlands Kyst, hvor Heldningen er fra
Nord mod Syd. altsaa ogsaa i Bevægelsens Retning. Ogsaa
ved Spidsbergen og ved Island sees. ialfald tildels.
Holdninger i Havspejlet i Retning af Vandets Bevægelse. Paa
Østkysten af Skotland, ved 57°.5 X. Br., synes Heldningen
i Overfladen at pege nordøver, medens Bevægelsen maa
foregaa langs Kysten sydover. Dette kan muligens være
10. The Currents of the Surface.
The current-surface, PI. jXLIII, gives the best
representation of the normal motion of the water at the
surfare of the sea. The motion follows fli., lines of equal
height, eyclonieally, having the greater heights to the
right, the lesser to tile left, as indicated by the
arrowheads iu the map. We observe that along the coast of
Norway the level falls from south to north, which gives
all inclination allowing gravity to overcome the fi’ietion
along the coast. This inclination is the result of
river-water flowing seaward from the land. A similar phenomenon
occurs at. the coast of Greenland, where the inclination
extends from north to south; here too. therefore, in the
direction of the motion. At Spitzbergen likewise, and
Iceland, in some places at least, are met with inclinations
of the surface of the sea in the direction taken by the
water. On the east coast of Scotland, lat. 57V. X. the
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