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.
10,
De norske Kyststationer fra Vardø til Skagerak
udvise samtlige et Minimum om Morgenen og et Maximum
om Eftermiddagen.1 Amplituden synes i de 3
Expeditions-aar 1876—78 at have været lidt større end den af de
længere Aarrækker fremgaaede.
Man har nemlig:
Vilde man anvende disse Correctioner paa
Resultaterne fra Havet, fik man for dette Værdierne:
— 0.09 + 0.10 — 0.01
der antyde en noget mindre Talværdi for saavel
Morgenminimums som for Eftermiddagsmaximums Afvigelse fraDagsmediet
(en Formindskelse af respective 0.mm07 og 0.mm10 omtrent).
Observationerne fra Færøerne og Islands Østkyst vise
et Minimum om Morgenen og et Maximum om Aftenen.
Reduceres de ved Hjelp af Bergen og Christiansund til 20
Aars, faar man
— 0.15 — 0.05 + 0.20
altsaa den samme Række.
Det fremgaar altsaa af disse Tal, at Barometrets
daglige Gang om Sommeren paa det norske Hav og paa de
tilgrændsende Kyster af Norge. Færøerne og Island har
sit Minimum om Morgenen og sit Maximum om
Eftermiddagen eller om Aftenen.
En anden Character har Fænomenet paa
Fjordstationer. som følgende Tabel viser.
The Norwegian coast-stations, from Vardø to the
Skagerak, exhibit all of them a minimum in the morning
and a maximum in the afternoon.1 The amplitude of the
variation on the three cruises af the Expedition (1876—
1878) would appear to have been somewhat greater than is
that derived from a longer series of years.
We have namely —
Now, were these corrections applied to the results of
the observations taken at sea, we should get the values
-0.09 +0.10 —0.01
which indicate somewhat/lower figures for the deviation of the
morning minimum and the afternoon maximum from the daily
mean (a reduction of about 0.""n07 and 0.mm10 respectively).
The observations from’ the Færoe Islands and the East
Coast of Iceland show a minimum in the morning and a
maximum in the evening. If they are reduced by means
of the observations at Bergen and Christiansund to a series
of 20 years, we get —
— 0.15 —0.05 +0.20
accordingly the same series.
Hence, it appears from these figures that the diurnal
variation of the barometer during the summer months in
the Norwegian Sea. as also on the adjacent coasts of Norway,
the Færoe Islands, and Iceland, has its minimum in the
morning and its maximum in the afternoon or evening.
At the fjord-stations, the phenomenon assumes another
character, as shown by the following Table: —
8 a.m. 2 p.m. 8 p.m.
for Expedit.s Obs.dage: Norske Kyststationer: (for the obs. days on theExped.: — Norw. coast-stations): —p.i8 +0.14 + 0.03
for de længgre Aarrækker (for the longer series of years) —0.10 +0.06 +0.04
Forskjel: Reduction til normal (Difference; reduction to the normal values) +0.08 —0.08 +0.01
Fjord-Stationer ( Fjord-Stuiiom) Aar (Year). 8 a.m. 2 p.m. 8 p.m. 9 P-m.
Alten io 1871—80 0.00™ — 0.04"™ + 0.05 —
Ytte reen 7 68—76 + 0.16 — o.io — 0.07
Flesje io 69—80 -f 0.18 — 0.12 — 0.07
Akureyri 6 74—79 + 0.08 — 0.23 + 0.14
Stykkisholm 6 74—79 0.00 — 0.08 -f 0.09
Middel for de 3 norske Stationer er:
+ 0.11 —0.09 —0.03
altsaa næsten de samme Tal, men med modsat Fortegn,
som tilhøre de norske Vestkyststationer.
For Norges Østland, dets continentale Del, have vi
følgende Tal:
1 Allerede af Observationerne fra 1801 og 1802 har Prof. Fearnley
fundet den samme Regel. Se Meteorologiske Iagttagelser paa fem
Telegrafstationer ved Norjjes Vestkyst, Christiania 1800.
The mean for the 3 Norwegian stations is
+ 0.11 —0.09 —0.03,
accordingly almost the same figures, but with reversed signs,
that were found at the stations on the west coast of Norway.
For the south eastern districts of Norway — the
continental part — we have the following figures: —
1 From the observations taken as early as 1801 and 1802,
Professor Fearnley discovered the same rule; see "Meteorologiske
Iagttagelser paa fem Telegrafstationer ved Norges Vestkyst," Christiania
1800.
14*
<< prev. page << föreg. sida << >> nästa sida >> next page >>
