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112
Absolut Lufttryk =
Baronieterhojdcn (1—0.00259 eos 2i/) (1—0.000000196H)
hvor tf er Stellets Bredde ogHHojden over Havet i Meter’.
Tyngdeeorrectionen varierer fra + 0.7 ram ved 50» Bredde
tii +1.9 mm ved 80» Bredde, altsaa 1.3 mm fra Nordsoen
til Nordspidsbergen. Denne Storrelse er ikke ringe i For
hold til de svage Lufttrykgradientcr, hvormed vi have at
gjöre i ilet normale Lufttryk over vort Nordhav.
Den folgende Tabel giver det saaledes udledede
normale Lufttryk for de Kyst- og Hav-Stationer, der ere
benyttede til Bestemmelsen af sammes aarlige Fordeling
over Nordhavet.
Absolute Atmospheric Pressure —
Heightof Ba rometer (1 —O.i >0259 cos2ff)(l—0.000000190H),
in which if denotes the latitude of the place and H the
height above the sea ill metres.1 The gravity-correction
varies from + 0.7 mm., in lat. 50« N. to + 1.9 mm., in Int.
80" N; thus, 1.2 mm. from the North Sea to North
Spilz-bergen. This difference is anything but slight compared
to the small gradients of atmospheric pressure wherewith
we have to deal in the normal atmospheric pressure
prevailing over the North Ocean.
The following Table gives the normal Atmospheric
Pressure thus found for the Coast and Sea-Stations, the
results from which have been applied in determining the
annual distribution of the pressure over the North Ocean.
Mandal Skudesne« Bergen Flnm Aalesund Cliristiansitnd Broun Bodø
Bredde i Lat.) ."’S" 2’ T.il" 11’ Ull" 24’ III» ;tii’ 11-2° 28’ G3» 7’ (>:." 28’ 117" 17’
Længde (£ow.) 7 27 E. r. 111 E. r, 20 E. 5 2 E. li 10 E. 7 14 E. 12 1:1 E. 14 -’4 E.
Januar 760.6 759.3 758.2 757-5 756-4 7.56-3 755-8 754-9
Februar 59.6 58.6 57-’ 57-0 56.0 55.8 55-2 54-3
Marta 59.1 58.6 57-9 57-5 56.6 56.5 56,0 55-2
April 59-7 59.6 59.0 59-3 59.0 58.9 58.6 58.1
Mai 61.0 61.2 60.5 60.6 60.+ 60.6 60.3 60.1
Juni 60.0 60.2 59.8 59.8 59-7 59.9 59.8 59-5
Juli 58.9 58.9 5S.5 58.4 58.5 58.5 > 58.4 58.2
August 58.7 58.5 58.0 58.0 58.0 58.2 58.3 58.0
September 5S.9 58.4 57-9 57-8 57-4 57-4 57-= 56.8
October 58.5 57-9 57-2 56.8 56.2 563 56.4 56.1
November 57-7 57-= 56.5 5S.3 55-7 55-6 55-5 55.1
December 58.0 57-0 5f>-3 55.9 54.9 54-9 54-8 54-5
Aar <r.«r) 759.2 758.8 758.1 757-9 757-4 757-4 757-s 756-7
Tromsø Alten Vardø StvkUishohu ’Akureyri JSrrufloKt Thorsliavn
Bredde (L..O 119° ;{!>’ lill" :>8’ 70" 22’ nr," .V li.-.» 40’ 114" 40’ 112» 3’
La-i.gde (/.o,,.) is :.s E. 23 ir. E. 31» 8 E. 22 411 W. 1 s s AV. 14" i:. \Y. li 44 AV.
Januar 753 3 754-5 754-0 747-3 749.2 750.1 753-7
Februar 530 54-2 53-4 50.2 5’.5 51.8 53-3
Marts 54-0 54-8 53-9 54-9 56.1 56.5 56-3
April 57-5 58.0 57-3 57-8 58.9 58.5 58.1
Mai 60.1 60.8 60.5 60.2 60.8 61.0 60.8
Juni 59-4 59-8 59-3 S7-6 58.0 58.0 58.9
Juli 58.4 58.5 58.8 57-1 57-1 57-0 57-6
August 58.0 58.1 58.2 57-1 57-5 57-8 57-9
September 56.2 56-9 56.6 54-7 55-3 55-1 56.0
October 55-6 55-9 55-3 53-4 54.2 53-4 540
November 54-0 55-3 54-4 56-3 58.5 57-8 56.2
December 53-6 55-1 54-2 50.3 51-7 51.8 52-7
Aar )"ir) 756.1 756.8 756.3 754-7 755-7 755-7 756.2
. .1. Broch. Acceleration .le 1.. |
Memoirs .1.. bureau international .
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