Full resolution (JPEG) - On this page / på denna sida - First part - I. Physical Geography - 2. Climate. By N. Ekholm, Ph. D., Central Meteorological Office, Stockholm
<< 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.
28
I. PHYSICAL GEOGRAPHY OF SWEDEN.
the district west and south of Rörås. The average temperature for
January in this center is under 8-5° Fahr., and during very severe
winters it has even gone as low as — 4° Fahr. The other »center of
cold», which is larger and stronger, lies in North Lappland and touches
both Sweden, Norway, and Finland. Here, the average temperature for
January is under 3° Fahr. and has, in unusually severe winters, gone down
to —10-3° Fahr. In order to find so low a temperature for January in
any other part of Europe, we must go as far east as to Petschora.
The facts mentioned above are graphically demonstrated on the
two charts on pages 25 and 29, which represent the average temperatures
in Sweden during the months of January and July. The isotherms
on these charts show the average temperatures really observed, and
not after reduction to sea-level. This explains the zig-zag course of
the lines, which also approximately and roughly indicate the
orographic configuration of Sweden.
Furthermore, we give here below a table showing the various
lengths of the seasons at different places in our land. But for the
seasons we will assume the following definitions, which correspond
pretty well to what, according to the popular opinion of the Swedes,
characterizes the four seasons in our country, though they are not
applicable to a warmer climate than ours. We will call summer the
time of the year during which the mean daily temperature of any place
remains above 50" F., winter the time when this temperature remains
below the freezing point, and autumn and spring the intermediate times.
Table 4. Lengths of seasons at some stations.
Stations. [-Latitude-] {+Lati- tude+} N. * The days when each season begins. The lengths of the seasons in days.
Winter. Spring. Summer. Åutumn. Winter. Spring. [-Sommer. Autumn.-] {+Som- mer. Au- tumn.+}
Karesuando.. 68^26’ 4 Oct. 9 May 10 June 15 Aug. 217 32 66 50
Jockmock ... 66 36 29 Sept. 23 April 8 June 25 Aug. 206 46 78 35
Haparanda... 65 50 21 Oct. 27 April 9 June 2 Sept. 188 43 85 49
Umeå.......... 63 49 28 Oct. 18 April 6 June 4 Sept. 172 49 90 54
Sveg.......... 62 2 21 Oct. 13 April 2 June 31 Aug. 174 50 90 51
Uppsala....... 59 52 15 Nov. 1 April 25 May 16 Sept. 137 54 114 60
Stockholm.... 59 21 24 Nov. 29 March 25 Mav 24 Sept. 125 57 122 61
Örebro ........ 59 16 IS Nov. 28 March 19 May 19 Sept. 130 52 1*3 60
Strömstad.... 58 56 29 Nov. 20 March 16 May 28 Sept. 111 57 135 62
Jönköping. 57 47 2 Dec. 24 March 23 May 23 Sept. 112 60 123 70
VeBtervik.... 57 46 5 Dec. 20 March 22 May 25 Sept. 105 63 126 71
Gothenburg . 57 42 18 Dec. 9 March 14 May 2 Oct. 81 66 141 77
Visby......... 57 39 24 Dec. 18 March 28 May 30 Sept. 84 71 125 85
Vexjö.......... 56 53 26 Nov. 23 March 19 May 22 Sept. 117 57 126 66
Lund.......... 55 42 17 Dec. 7 March 16 Mav 2 Oct. 80 70 139 76
* The longitude E. from Greenwich is for Haparanda 24° 9’, for Karesuando 22° 30’,
for Strömstad 11° 11’, and for the other stations it lies between 12’ and 20°. As regards
the height above sea-level, which is here naturally of great importance, it is 344 meters
for Sveg: the other figures are given in Tuble 3.
<< prev. page << föreg. sida << >> nästa sida >> next page >>
