Zobrazeno 1 - 7
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pro vyhledávání: '"Niels Olsen Saraiva Camara"'
Autor:
Niels Olsen Saraiva Camara, Nils Olsen
Publikováno v:
Olsen, N 2021, ' Magnetometer Data from the GRACE Satellite Duo ', Earth, Planets and Space, vol. 73, no. 1, 62 . https://doi.org/10.1186/s40623-021-01373-9
Earth, Planets and Space, Vol 73, Iss 1, Pp 1-20 (2021)
Earth, Planets and Space, Vol 73, Iss 1, Pp 1-20 (2021)
This paper describes and discusses the preprocessing and calibration of the magnetic data taken by the navigational magnetometers onboard the two GRACE satellites, with focus on the almost 10 years period from January 2008 to the end of the GRACE mis
Publikováno v:
Alken, P, Olsen, N & Finlay, C C 2020, ' Co-estimation of geomagnetic field and in-orbit fluxgate magnetometer calibration parameters ', Earth, Planets and Space, vol. 72, no. 1, 49 . https://doi.org/10.1186/s40623-020-01163-9
Earth, Planets and Space, Vol 72, Iss 1, Pp 1-32 (2020)
Earth, Planets and Space, Vol 72, Iss 1, Pp 1-32 (2020)
For the past 20 years, state of the art geomagnetic core field models have relied heavily on magnetic measurements made from space-based instrumentation. These models have revealed rapid global magnetic field variations on sub-decadal timescales orig
Autor:
Niels Olsen Saraiva Camara, Vincent Lesur, Nils Olsen, Lars Tøffner-Clausen, Christopher C. Finlay
Publikováno v:
Tøffner-Clausen, L, Lesur, V, Olsen, N & Finlay, C 2016, ' In-flight scalar calibration and characterisation of the Swarm magnetometry package ', Earth, Planets and Space, vol. 68, no. 1, 129 . https://doi.org/10.1186/s40623-016-0501-6
We present the in-flight scalar calibration and characterisation of the Swarm magnetometry package consisting of the absolute scalar magnetometer, the vector magnetometer, and the spacecraft structure supporting the instruments. A significant improve
Publikováno v:
Earth, Planets and Space. 55:i-ii
Autor:
Niels Olsen Saraiva Camara, Nils Olsen, Lars Tøffner-Clausen, Christopher C. Finlay, Stavros Kotsiaros
Publikováno v:
Olsen, N, Finlay, C, Kotsiaros, S & Tøffner-Clausen, L 2016, ' A model of Earth’s magnetic field derived from 2 years of Swarm satellite constellation data ', Earth, Planets and Space, vol. 68, no. 1, 124 . https://doi.org/10.1186/s40623-016-0488-z
More than 2 years of magnetic field data taken by the three-satellite constellation mission Swarm are used to derive a model of Earth’s magnetic field and its time variation. This model is called SIFMplus. In addition to the magnetic field observat
Publikováno v:
Finlay, C, Olsen, N & Tøffner-Clausen, L 2015, ' DTU candidate field models for IGRF-12 and the CHAOS-5 geomagnetic field model ', Earth, Planets and Space, vol. 67, no. 114 . https://doi.org/10.1186/s40623-015-0274-3
We present DTU’s candidate field models for IGRF-12 and the parent field model from which they were derived,CHAOS-5. Ten months of magnetic field observations from ESA’s Swarm mission, together with up-to-date ground observatory monthly means, we
Publikováno v:
Laundal, K M, Finlay, C & Olsen, N 2016, ' Sunlight effects on the 3D polar current system determined from low Earth orbit measurements ', Earth, Planets and Space, vol. 68, 142, pp. 1-19 . https://doi.org/10.1186/s40623-016-0518-x
Interaction between the solar wind and the Earth's magnetosphere is associated with large-scale currents in the ionosphere at polar latitudes that flow along magnetic field lines (Birkeland currents) and horizontally. These current systems are tightl