By Alv Egeland, William J. Burke

ISBN-10: 3642314562

ISBN-13: 9783642314568

ISBN-10: 3642314570

ISBN-13: 9783642314575

This biography summarizes the seminal contributions to auroral and house technology of Carl Størmer (1874 - 1957). He was once the 1st to advance certain photographic the way to calculate heights and morphologies of various auroral types in the course of 4 sun cycles. Størmer independently devised numerical strategies to figure out the trajectories of high-energy charged debris allowed and forbidden within the Earth’s magnetic box. His theoretical analyses defined cosmic ray entry to the higher surroundings, two decades earlier than they have been pointed out through different scientists. Størmer’s crowning success, “The Polar Aurora,” released whilst he used to be eighty one years outdated, stands to today as a frequently mentioned advisor in graduate-level classes on house physics.

The authors current the lifetime of this prodigious scientist with regards to the cultural lifetime of early twentieth century in Norway and to the advance of the gap sciences within the post-Sputnik era.

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Additional info for Carl Størmer: Auroral Pioneer

Example text

This is probably an artefact of his limited number of observations. A similar zone was later found in the southern hemisphere formulated the first scientifically correct explanation of this relationship, arguing that fluctuations of the Earth’s magnetic field provide critical clues about possible connections between electrical currents flowing in the upper atmosphere and activity on the Sun. While the Earth’s atmosphere shields us from hazardous portions of the solar spectrum, most information carried by slowly varying magnetic fields reaches the ground.

He too was an active amateur astronomer, who in 1930 and 1960 discovered new comets, called Jurlot-Achmarof-Hassel comet, and Nova Hercules, respectively. 1 An overview of Størmer’s auroral observations from year 1911 to 1952 Auroral work in southern Norway 1911–1952 Year 1911 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 n 2 1 4 8 8 4 6 2 1 2 6 15 2 11 14 14 7 5 22 13 17 22 17 42 39 39 36 24 12 8 9 15 32 12 16 8 9 9 St 2 2 3 4 3 7 6 2 6 2 7 6 6 6 4 4 5 5 9 7 7 10 9 10 8 10 6 6 7 6 7 7 8 7 6 6 6 6 S 27 3 61 56 238 284 86 68 96 15 144 638 123 584 1,025 709 357 163 1,447 590 1,349 2,332 1,759 6,192 2,372 3,313 3,996 2,096 1,095 224 450 1,268 2,597 856 1,268 828 682 684 S 13 0 20 14 95 101 27 32 36 6 44 211 47 173 338 253 109 48 462 152 347 621 418 1,429 363 421 678 528 201 29 70 267 515 213 245 219 167 120 P N 13 0 20 14 95 101 27 32 40 6 46 140 51 114 171 47 20 42 306 29 78 165 99 441 150 122 154 100 36 2 20 38 159 50 97 64 46 38 50 0 81 58 437 548 115 105 200 19 222 782 284 693 1,156 224 95 290 1,587 113 444 1,076 639 2,662 854 874 843 606 237 11 100 253 1,131 286 644 422 290 217 Total 613 40,075 9,032 3,182 18,648 Here n ¼ number of observation nights, St ¼ number of stations in action, S ¼ number of high quality pictures taken, S ¼ number of parallactic photographs, P and N number of points measured (height and position) 48 3 Størmer’s Auroral Studies main assistant in Oslo.

In conclusion, Størmer expressed satisfaction with this first expedition and the large collection of auroral photographs he assembled. He sent his best regards to his mother and to his children and thanked them for letters that he received but had been unable to answer while working long days. Størmer’s second auroral expedition also operated out of Bossekop. The team left Kristiania on February 15, 1913 and returned in late April. 3 Auroral Observations: 1909–1957 45 Fig. 16 Frontpage of Størmer’s 1911 report on his first auroral expedition to Bossekop.

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Carl Størmer: Auroral Pioneer by Alv Egeland, William J. Burke


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