Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Dag Arne Lorentzen"'
Autor:
Nataliya Sergeevna Nosikova, Nadezda Viktorovna Yagova, Lisa Jane Baddeley, Dag Arne Lorentzen, Dmitriy Anatolyevich Sormakov
Publikováno v:
Annales Geophysicae
The present case study is focused on fluctuations at ∼ 1.5 mHz observed on open field lines in both of the polar caps in ground-based geomagnetic data and in the electron concentration in the Northern Hemisphere ionosphere. Coherent pulsations with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e82b54aa01c51e6f0795f8dacd0a1637
https://hdl.handle.net/11250/3059574
https://hdl.handle.net/11250/3059574
Autor:
Inger Jennings, Agnar Sivertsen, Kim Holmén, Knut Ove Nygård, Dariusz Ignatiuk, Rune Storvold, Bo Andersen, Richard Hann, Dag Arne Lorentzen, Bartłomiej Luks, Rasmus Erlandsson, Małgorzata Błaszczyk, Christiane E. Hübner, Sabine Marty, Heikki Lihavainen, Kottekkatu Padinchati Krishnan, Hans Tømmervik, Shridhar Jawak, Øystein Godøy, Rosamaria Salvatori, Stein Rune Karlsen, Hiroyuki Enomoto, Eirik Malnes, Roberto Salzano, Veijo A. Pohjola, Jie Zhang, Kjell Arild Høgda, Ann Mari Fjæraa, Lennart Nilsen, Tom Rune Lauknes, Sourav Chatterjee, Andreas Kääb
Publikováno v:
Remote Sensing, Vol 13, Iss 712, p 712 (2021)
Remote Sensing
Remote sensing (Basel) 13 (2021): 1–31. doi:10.3390/rs13040712
info:cnr-pdr/source/autori:Jawak S.D.; Andersen B.N.; Pohjola V.; Godoy O.; Hubner C.; Jennings I.; Ignatiuk D.; Holmen K.; Sivertsen A.; Hann R.; Tommervik H.; Kaab A.; Blaszczyk M.; Salzano R.; Luks B.; Hogda K.A.; Storvold R.; Nilsen L.; Salvatori R.; Krishnan K.P.; Chatterjee S.; Lorentzen D.A.; Erlandsson R.; Lauknes T.R.; Malnes E.; Karlsen S.R.; Enomoto H.; Fjaeraa A.M.; Zhang J.; Marty S.; Nygard K.O.; Lihavainen H./titolo:Sios's earth observation (Eo), remote sensing (rs), and operational activities in response to covid-19/doi:10.3390%2Frs13040712/rivista:Remote sensing (Basel)/anno:2021/pagina_da:1/pagina_a:31/intervallo_pagine:1–31/volume:13
Remote Sensing
Remote sensing (Basel) 13 (2021): 1–31. doi:10.3390/rs13040712
info:cnr-pdr/source/autori:Jawak S.D.; Andersen B.N.; Pohjola V.; Godoy O.; Hubner C.; Jennings I.; Ignatiuk D.; Holmen K.; Sivertsen A.; Hann R.; Tommervik H.; Kaab A.; Blaszczyk M.; Salzano R.; Luks B.; Hogda K.A.; Storvold R.; Nilsen L.; Salvatori R.; Krishnan K.P.; Chatterjee S.; Lorentzen D.A.; Erlandsson R.; Lauknes T.R.; Malnes E.; Karlsen S.R.; Enomoto H.; Fjaeraa A.M.; Zhang J.; Marty S.; Nygard K.O.; Lihavainen H./titolo:Sios's earth observation (Eo), remote sensing (rs), and operational activities in response to covid-19/doi:10.3390%2Frs13040712/rivista:Remote sensing (Basel)/anno:2021/pagina_da:1/pagina_a:31/intervallo_pagine:1–31/volume:13
Shridhar D. Jawak, Bo N. Andersen, Veijo Pohjola, Øystein Godøy, Kim Holmén, Agnar Sivertsen, Richard Hann, Hans Tømmervik, Andreas Kääb, Małgorzata Błaszczyk, Roberto Salzano, Bartłomiej Luks, Kjell Arild Høgda, Rune Storvold, Lennart Nils
Autor:
N. V. Yagova, Lisa Baddeley, Nataliya Nosikova, Dag Arne Lorentzen, Dmitriy Anatolyevich Sormakov
Our recent study (Yagova et al., 2017) shows that ultralow frequency (ULF) pulsations are seen in ground-based magnetic and luminosity data in the polar cap for a few hours preceding isolated non-triggered substorms. Such pulsations are characterised
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9072d9c0b13a0a60d9a6fc380318e562
https://doi.org/10.5194/angeo-2020-65
https://doi.org/10.5194/angeo-2020-65
Publikováno v:
Journal of Geophysical Research (JGR): Space Physics
This paper presents a new algorithm for detecting high-speed flow channels in the polar cap. The algorithm was applied to Super Dual Auroral Radar Network data, specifically to data from the new Longyearbyen radar. This radar is located at $78.2^\cir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4402ea645feef3ce40788ac3b9c9b79
Autor:
Gerhard Haerendel, Lasse Boy Novock Clausen, Espen Trondsen, Joran Moen, Robert J. Strangeway, Dag Arne Lorentzen, Xiaoyan Zhou, Bjørn Lybekk
Publikováno v:
Journal of Geophysical Research: Space Physics. 122:3145-3162
Generated by interplanetary shocks or solar wind pressure pulses, shock aurora has transient, global, and dynamic significances and provides a direct manifestation of the solar wind‐magnetosphere‐ionosphere interaction. As a part of a series of s
Autor:
Lasse Boy Novock Clausen, Christer van der Meeren, Larry J. Paxton, Dag Arne Lorentzen, Kjellmar Oksavik
Publikováno v:
Journal of Geophysical Research: Space Physics. 121:5723-5736
In this paper we study the presence of irregularities and scintillation in relation to the nightside part of a long-lived, Sun-aligned transpolar arc on 15 January 2015. The arc was observed in DMSP UV and particle data and lasted at least 3 h betwee
Publikováno v:
Radio Science. 51:490-506
Structured particle precipitation in the cusp is an important source for the generation of F-region ionospheric irregularities. The equatorward boundaries of broad Doppler spectral width in Super Dual Auroral Radar Network (SuperDARN) data and the co
Publikováno v:
Annales Geophysicae, Vol 23, Pp 1603-1610 (2005)
Annales Geophysicae, Vol 23, Iss 5, Pp 1603-1610 (2005)
Annales Geophysicae, Vol 23, Iss 5, Pp 1603-1610 (2005)
An anomalous red glow due to scattered sunlight was observed at Longyearbyen (78° N, 15° E) on 6 December 2002 from 07:30 UT to 13:30 UT when the solar zenith angle varied between 100.7° and 104°. A model for this red sky event using sunlight sca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d86e8bb0cf8bd913af7dd964cb5ba5d9
https://www.ann-geophys.net/23/1603/2005/
https://www.ann-geophys.net/23/1603/2005/
Autor:
Norah Kaggwa Kwagala, Kjellmar Oksavik, Magnar Gullikstad Johnsen, Dag Arne Lorentzen, Karl Magnus Laundal
Publikováno v:
Journal of Geophysical Research-Space Physics
Solar cycle and seasonal variations have been found in the occurrence of strong thermally excited 630.0 nm emissions in the polar ionosphere. Measurements from the European Incoherent Scatter Svalbard Radar have been used to derive the thermal emissi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fefc6d5d9bb438b3a93a185e2748ec26
https://hdl.handle.net/10037/14169
https://hdl.handle.net/10037/14169
Publikováno v:
Journal of Geophysical Research-Space Physics
Source at: http://doi.org/10.1002/2017JA024744 This paper studies thermally excited emissions in the polar ionosphere derived from European Incoherent Scatter Svalbard radar measurements from the years 2000–2015. The peak occurrence is found around
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b23ecf6a2dbfef00f5252a4bb0c1bc1
https://hdl.handle.net/10037/13045
https://hdl.handle.net/10037/13045