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113
Bmldc (Litt.) 00° 05® 00" 70° (50° (15° 70" 75" no"
Længde (Low.) 30° \V. :io" w. 20" W. 20" \V. 10" \V. 10" W. 10" W. 10» \Y. 0"
Jiuutar 746.0 74^-3 749-9 7.51-0 752.5 7490 75 "0 753-6 755-1
Februar 48.1 48.7 50.1 54-4 54-3 50.0 52.6 55-6 56-3
Marts 53-2 55-5 55-2 58.6 56.0 55-8 57.1 60.1 56.1
April 55-5 S«-! 58-3 62.2 58-5 58.0 60.0 64.2 59-3
Mtij 58.0 59-3 59-9 62.5 60.5 61.0 63.1 64.3 60.4
Juni 57-0 57.0 56-7 59-8 59-0 57-8 58.9 60.4 60.4
Juli 57-4 57-7 57-5 58-7 58.4 57-= 58.0 59-3 584
August S6.4 57-’ 57-3 58.4 58.3 57-4 58.1 59-3 58.3
September 54" 54-8 55-0 56.5 55-9 55-3 56.0 5S.7 56.5
October 53-1 54-7 53-2 57-2 54-2 53-3 55-5 58.5 55-4
November 53-7 56.1 55-4 60.8 56-7 57-6 6&.0 62.S 56.7
December 48.8 50.0 52.6 56.3 54-0 51-7 53-7 56.1 55-2
Aar (Year) 753-4 754-6 755-1 758.0 756-5 755-3 756.9 759.4 757-3
Bredde (Lat.) 65® 70" 75® 05® 70" 75® 75" 70" 70"
Længde (Long.) 0" 0" 0" 10" E. 10" E. 10" E. 20° E. 40" E. 50" E
Janiiai- 751-5 750-3 753.9 755-3 753.3 753.7 753.8 755.0 755-8
Febi-ar 538 5»-3 55-1 55-3 52.1 53.8 53-9 54-1 56-9
Marts 56.7 57-1 58.4 55-8 54.0 56.0 56.2 54-3 57-3
April 57-9 58-3 61.1 58-5 57-5 58.3 58.7 57-4 60.3
Maj 60.2 59-7 62.3 60.3 59-0 59-9 60.0 60.9 63.3
Juni 58.1 58.1 60.1 59-7 5«-4 58.7 58-8 59-3 59-7
Jnli 56.9 56.3 58-3 58.3 57.1 57-7 57-7 59-3 60.4
August 57-6 58.0 58.8 58-1 57-5 57-7 57-7 58-3 59.8
September 56-7 57-" 58-3 57-3 56.2 57-4 56.8 57-5 59-5
October 53-1 539 55-8 56.1 53-7 56.1 55-1 56.3 57-0
November 55-2 57-2 60.2 55-1 54-5 58.1 56.7 55-5 57-2
December 52.1 53-6 55-3 54-8 54-3 55-4 54-2 56.3 58-4
Aar {Ytar) 755-8 756.0 758.1 757-0 755-5 756.8 756.6 757-0 758.8
Mosselbay. Smiths Obs. Sabine 1. Jau Mayen.
Bredde (Lat.) 79° 53’ 78° 28’ 74° 32’ 70° 59’
Længde (Long.) 16 4 E 15 43 E 18 50 W 8 28 W
Aar (Year) 761.1 760.1 760.6 757.3
Afsættes disse samt de skotske og danske
Observationer paa et Kart, finder man, at der i alle Maaneder
ligger et Lufttryk-Minimum over det norske Hav1. Det,
som lier interesserer os mest, er det normale Lufttryk for
Aaret. Dette er fremstillet ved Hjelp af Isobarer i PI.
XXXI. I dette Kart ere samtlige benyttede Observationer
indtegnede. De Tal paa Havet, der ikke høre til de
ovennævnte Stationer, ere udledede af Maanedsmedia, fundne
ved Hjelp af Maanedskarter og controllerede ved Curver
for den aarlige Variation.
I Sydvest for Island finde vi det. bekjendte
Grønlandsk-Islandske Lufttryk-Minimum med et Lufttryk af under
754 mm. Imellem Sydost-Enden af Island og den sydlige
Del. af Østhavet ligger et langstraktLufttrykminimuni |m-
1 En udførligere Fremstilling af Lufttrykkets Fordeling over
Nordvest-Europa og Nordhavet har jeg givet i Zeitsclirift der
iister-reiehischen Gesellschaft fiir Meteorologie 1884, S. 145. Med Karter.
Man observere Berigtigelserne i samme Tidsskrift S. 303 og for 1885
S. 32, samt Jalirbuch des liorwegischen meteorologischen Instituts
fiir 1884, Vonvort, S. VI og VII, samt Jalirbuch fiir 1885, Vorwort.
Tallene i ovenstaaende Tabel ere corrigerede efter alle bekjendte
Cor-rectioner, efterat Kartet, Pl. XXXT, var trykt.
Den norske Nordliavsexpedition. 11. M0I111: Nordhavets Dybder, ’I
Now if these observations, together with the Scottish
and Danish, are set clown on a map, a minimum of
atmospheric pressure will be found to extend during every
month of the year above the Norwegian Sea.1 That with
which we here have specially to deal is the normal
atmospheric pressure for the year. It is represented by means
of isobars in Pl. XXXI. The map gives all
observations made use of. The figures for the sea not belonging
to the fore-mentioned Stations, have been educed from monthly
media found by means of monthly maps and controlled by
curves for the annual variation.
South-west of Iceland, occurs the well-known
Greenland-Icelandic minimum, with a pressure of somewhat less
than 754 111111. Between the south-eastern extremity of
Iceland and the southern part of the Barents Sea. we have
1 A more detailed account of the distribution of atmospheric
pressure over North-western Europe and the North Ocean, 1 have
given in Zeitsclirift der österreichischen Gesellschaft für Meteorologie.
1884, p. 145. With Maps. Attention is called to the rectification of
errors in that volume of the Periodical, p. 303, and in that for 1885
p. 32; as also to Jalirbuch des liorwegischen meteorologischen Instituts
fiir 1884, preface, pp. VI and VII; and to Jalirbuch fiir 1885, preface.
The numbers in the above Table were corrected for all known errors
after the Map, Pl. XXXI, had been printed,
•atar og Stromninger. 15
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