632:
530:
20:
414:
415:
Incoherent
Scatter Spectral Theories — Part I : A General Framework and Results for Small Magnetic Aspect Angles, E. Kudeki and M. Milla, IEEE transactions on geoscience and remote sensing, 49, 315-328, 2011(January
234:, a position he held until his retirement in 1998. Hagfors was chairman of EISCAT Council from 1995 to 1996, chairman of the space science committee in the Norwegian Research Council from 1992 to 1997, and member of the
165:. It is remarkable that despite the distinct approaches used they obtained identical results. A complete modern treatment of this topic was published in early 2011 by Erhan Kudeki and Marco Milla (both at the
827:
427:
History of EISCAT – Part 1: On the early history of EISCAT with special reference to the
Swedish part of it, B. Hultqvist, Hist. Geo Space Sci., 2, 115–121, 2011(19 December 2011)~~~~
817:
65:
facilities that were then under construction in 1975, by which time he already been director at most of the other incoherent scatter radar facilities in the world. The
750:
355:
235:
204:
106:
837:
832:
125:
in two periods, from 1963 to 1967 and from 1969 to 1971. In the early 1960s he was one of a handful of pioneering theorists (others included
653:
440:
822:
774:
675:
613:
508:
223:
86:
53:. In the early 1960s he was one of a handful of pioneering theorists that independently developed a theory that explained the
551:
459:
812:
594:
566:
547:
701:
173:
646:
640:
503:
573:
361:
227:
540:
657:
130:
192:. He lectured electrical engineering at NTH from 1973 to 1982, and in 1975 he became the first director of the
122:
580:
384:
239:
481:
166:
562:
345:
158:
54:
46:
265:
Hagfors's research was very broad, comprising amongst other things ionospheric modification (heating),
807:
802:
255:
426:
394:
208:
189:
114:
378:
216:
138:
118:
94:
200:
were constructed. He held that position until 1982 when he returned to
Cornell to direct NAIC.
126:
437:
390:
247:
693:
518:
371:
50:
485:
463:
444:
297:
266:
38:
587:
281:
154:
519:
Obituary of the Max Planck
Society, Annual Report of the MPS 2007, page 16 (in German)
796:
259:
784:
329:
313:
293:
270:
215:
until
September 30, 2011, and professor of astronomy and electrical engineering at
70:
456:
157:(also at Cornell)) that all independently developed a theory that explained the
529:
317:
289:
212:
197:
146:
301:
285:
177:
162:
110:
58:
31:
90:
34:
466:
awarded at the
University of Oulu on 25 May 2002. Retrieved 16 June 2007.
66:
19:
231:
196:
scientific association, when the organization's facilities in northern
142:
134:
725:
367:
274:
243:
193:
62:
278:
251:
42:
18:
475:
342:
203:
From
October 1982 to September 1992 Hagfors was director of the
185:
181:
150:
82:
45:
expert and a pioneer in the studies of the interactions between
625:
523:
207:(NAIC) at Cornell University in Ithaca NY, which operated the
159:
scattering of radio waves by the free electrons in a plasma
55:
scattering of radio waves by the free electrons in a plasma
304:
propagation. He published around 170 scientific papers.
828:
Members of the
Norwegian Academy of Science and Letters
188:. Between 1971 and 1973 he was site director at the
554:. Unsourced material may be challenged and removed.
393:and Elva Gordon distinguished lecture at the
238:since 1995. He was a visiting scholar at the
8:
30:(18 December 1930 – 17 January 2007) was a
687:
447:of the URSI Awards. Retrieved 16 June 2007
117:from 1959 to 1960. He was employed at the
676:Learn how and when to remove this message
614:Learn how and when to remove this message
222:In 1992 he was appointed director of the
172:From 1967 to 1969 he was director of the
61:. He became founding director of the new
818:Norwegian Institute of Technology alumni
751:National Astronomy and Ionosphere Center
639:This article includes a list of general
356:Norwegian Academy of Science and Letters
236:Norwegian Academy of Science and Letters
205:National Astronomy and Ionosphere Center
107:Norwegian Defence Research Establishment
407:
7:
552:adding citations to reliable sources
109:from 1955 to 1963, interrupted by a
277:surfaces from space, techniques in
645:it lacks sufficient corresponding
14:
775:Max Planck Institute for Aeronomy
224:Max Planck Institute for Aeronomy
87:Norwegian Institute of Technology
630:
528:
539:needs additional citations for
500:, June 2007, 48(3) p. 3.37
351:1989 Senior Humboldt fellowship
838:Max Planck Institute directors
161:and applied the result to the
57:and applied the result to the
1:
833:MIT Lincoln Laboratory people
328:Asteroid 1985 VD1 was named
702:Jicamarca Radio Observatory
457:List of honorary doctorates
174:Jicamarca Radio Observatory
85:in 1930. He studied at the
854:
823:Cornell University faculty
377:2002 Doctor honoris causa
362:Royal Astronomical Society
228:Lindau (Katlenburg-Lindau)
781:
771:
765:
757:
747:
741:
733:
722:
716:
708:
698:
690:
488:. Retrieved 16 June 2007.
498:Astronomy and Geophysics
123:Lexington, Massachusetts
93:degree in 1959 from the
81:Tor Hagfors was born in
728:Scientific Association
660:more precise citations.
360:1998 Associate member,
89:(NTH) and received his
513:Radio Science Bulletin
312:Tor Hagfors died of a
167:University of Illinois
105:Hagfors worked at the
24:
383:2003 Honorary doctor
288:from rough surfaces,
47:electromagnetic waves
22:
813:Norwegian physicists
548:improve this article
397:on November 3, 2003.
385:University of Tromsø
372:Sir Granville Beynon
320:on 17 January 2007.
290:thermal fluctuations
256:Lancaster University
240:University of Tromsø
511:(p. 65–66) in
395:Arecibo Observatory
354:1995 Member of the
209:Arecibo Observatory
190:Arecibo Observatory
115:Stanford University
16:Norwegian physicist
484:2008-04-01 at the
462:2006-07-19 at the
443:2007-09-28 at the
379:University of Oulu
273:, observations of
217:Cornell University
119:Lincoln Laboratory
95:University of Oslo
69:1985 VD1 is named
25:
791:
790:
782:Succeeded by
758:Succeeded by
734:Succeeded by
709:Succeeded by
686:
685:
678:
624:
623:
616:
598:
391:William E. Gordon
248:Nagoya University
129:(who worked with
845:
766:Preceded by
742:Preceded by
724:First Director,
717:Preceded by
694:Donald T. Farley
691:Preceded by
688:
681:
674:
670:
667:
661:
656:this article by
647:inline citations
634:
633:
626:
619:
612:
608:
605:
599:
597:
556:
532:
524:
489:
473:
467:
454:
448:
435:
429:
424:
418:
412:
39:radio astronomer
853:
852:
848:
847:
846:
844:
843:
842:
793:
792:
787:
778:
769:
761:
754:
745:
737:
730:
720:
712:
705:
696:
682:
671:
665:
662:
652:Please help to
651:
635:
631:
620:
609:
603:
600:
557:
555:
545:
533:
504:Short biography
493:
492:
486:Wayback Machine
474:
470:
464:Wayback Machine
455:
451:
445:Wayback Machine
436:
432:
425:
421:
413:
409:
404:
338:
326:
310:
294:complex plasmas
267:radar astronomy
103:
101:Scientific work
79:
17:
12:
11:
5:
851:
849:
841:
840:
835:
830:
825:
820:
815:
810:
805:
795:
794:
789:
788:
783:
780:
770:
767:
763:
762:
760:Paul Goldsmith
759:
756:
746:
743:
739:
738:
735:
732:
721:
718:
714:
713:
710:
707:
697:
692:
684:
683:
638:
636:
629:
622:
621:
536:
534:
527:
522:
521:
516:
506:
501:
491:
490:
468:
449:
430:
419:
406:
405:
403:
400:
399:
398:
387:
381:
375:
364:
358:
352:
349:
337:
334:
325:
322:
309:
306:
282:remote sensing
155:E. E. Salpeter
131:John Dougherty
102:
99:
78:
75:
15:
13:
10:
9:
6:
4:
3:
2:
850:
839:
836:
834:
831:
829:
826:
824:
821:
819:
816:
814:
811:
809:
806:
804:
801:
800:
798:
786:
777:
776:
764:
753:
752:
740:
729:
727:
715:
704:
703:
695:
689:
680:
677:
669:
659:
655:
649:
648:
642:
637:
628:
627:
618:
615:
607:
596:
593:
589:
586:
582:
579:
575:
572:
568:
565: –
564:
563:"Tor Hagfors"
560:
559:Find sources:
553:
549:
543:
542:
537:This article
535:
531:
526:
525:
520:
517:
514:
510:
507:
505:
502:
499:
495:
494:
487:
483:
480:
479:
472:
469:
465:
461:
458:
453:
450:
446:
442:
439:
434:
431:
428:
423:
420:
417:
411:
408:
401:
396:
392:
388:
386:
382:
380:
376:
373:
369:
365:
363:
359:
357:
353:
350:
347:
344:
340:
339:
335:
333:
331:
323:
321:
319:
315:
307:
305:
303:
299:
295:
291:
287:
283:
280:
276:
272:
268:
263:
261:
260:Great Britain
257:
253:
249:
245:
241:
237:
233:
229:
225:
220:
218:
214:
210:
206:
201:
199:
195:
191:
187:
183:
179:
175:
170:
168:
164:
160:
156:
152:
148:
144:
140:
136:
132:
128:
124:
120:
116:
112:
108:
100:
98:
96:
92:
88:
84:
76:
74:
72:
68:
64:
60:
56:
52:
48:
44:
40:
36:
33:
29:
21:
785:Sami Solanki
773:Director of
772:
749:Director of
748:
736:Murray Baron
723:
699:
672:
666:January 2009
663:
644:
610:
604:January 2009
601:
591:
584:
577:
570:
558:
546:Please help
541:verification
538:
515:, March 2007
512:
497:
478:Tromsøflaket
477:
471:
452:
433:
422:
410:
330:7279 Hagfors
327:
314:heart attack
311:
271:Solar System
264:
221:
202:
171:
104:
80:
71:7279 Hagfors
27:
26:
808:2007 deaths
803:1930 births
711:Ron Woodman
658:introducing
476:Article in
346:Van der Pol
318:Puerto Rico
269:within the
213:Puerto Rico
198:Scandinavia
147:Jules Fejer
139:Ron Woodman
73:after him.
28:Tor Hagfors
23:Tor Hagfors
797:Categories
779:1992–1998
768:Ian Axford
755:1982–1992
731:1975–1982
706:1967–1969
700:Director,
641:references
574:newspapers
496:Obituary,
402:References
348:Gold Medal
302:radio wave
286:scattering
180:, outside
178:Lurigancho
163:ionosphere
127:Don Farley
111:sabbatical
77:Early life
59:ionosphere
744:Hal Craft
438:Laureates
416:2011)~~~~
332:in 2000.
275:planetary
91:doctorate
35:scientist
32:Norwegian
509:Obituary
482:Archived
460:Archived
441:Archived
298:antennas
67:asteroid
654:improve
588:scholar
324:Honours
232:Germany
153:), and
143:Harvard
135:Cornell
726:EISCAT
643:, but
590:
583:
576:
569:
561:
368:EISCAT
336:Awards
254:, and
244:Norway
194:EISCAT
63:EISCAT
51:plasma
595:JSTOR
581:books
389:2003
374:medal
366:2002
341:1987
308:Death
279:radio
252:Japan
133:) at
43:radar
567:news
343:URSI
300:and
186:Peru
182:Lima
151:UCSD
83:Oslo
49:and
719:N/A
550:by
370:'s
316:in
292:in
258:in
250:in
230:in
226:in
211:in
176:in
169:).
145:),
121:in
113:at
799::
296:,
284:,
262:.
246:,
242:,
219:.
184:,
137:,
97:.
41:,
37:,
679:)
673:(
668:)
664:(
650:.
617:)
611:(
606:)
602:(
592:·
585:·
578:·
571:·
544:.
149:(
141:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
