Rit (Vísindafélag Íslendinga) - 01.07.1931, Blaðsíða 17

Rit (Vísindafélag Íslendinga) - 01.07.1931, Blaðsíða 17
17 a number of minor craters, from which quite recent lava- streams have flown downwards and spread over the narrow strip of low ground that runs along the seaboard. The glacier cap is probably of no great fhickness. Only in the crater cirque in NW a large mass of snow seems to have accumulated. The firn seems to be gliding evenly out in almost all directions and the »skridjökuls« are accordingly rather short and probably in very slow motion. Climatic Conditions. Unfortunafely no meteorological observations have been made in the western part of Snæ- fellsnes, the nearest station being Síykkishólmur on the N- coast of the peninsula at a distance of some 50 km. ENE of the glacier. By the aid of that station and other tempera- ture data from the west-coast the mean temperature at the western point of Snæfellsnes has been extrapolated for the period ]une—Sept., in which one can reckon that ablation takes place at the firnlimit of the glacier. While this value is 8 ,9 in Sfykkishólmur I reckon with 9°,o for the southern and 8°,7 for the northern side of the glacier (fig. 3). The annual precipitation in Stykkishólmur amounts to 650 mm. As to the precipitation in the surroundings of the glacier nothing can be said at present. The Height of the Firnlimit. On my visit about ]uly 20th last summer I measured the height of the firnlimit in diverse places with the exepfion of the north side. The results were as follows: Exposure: East South Southwest Northwest Height m.: 880 950 1070 800 Thoroddsen puts the height of the snowline at 820 m. in NE and 1040 m. in SW. Probably these values are only derived from the map but not directly measured as he could not ascend the glacier on account of unfavourable weather. On ]uly 14th in 1789 Dr. Wright found the height at 2

x

Rit (Vísindafélag Íslendinga)

Beinir tenglar

Ef þú vilt tengja á þennan titil, vinsamlegast notaðu þessa tengla:

Tengja á þennan titil: Rit (Vísindafélag Íslendinga)
https://timarit.is/publication/1735

Tengja á þetta tölublað:

Tengja á þessa síðu:

Tengja á þessa grein:

Vinsamlegast ekki tengja beint á myndir eða PDF skjöl á Tímarit.is þar sem slíkar slóðir geta breyst án fyrirvara. Notið slóðirnar hér fyrir ofan til að tengja á vefinn.