Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Magnus D. Hammer"'
Publikováno v:
Earth, Planets and Space, Vol 73, Iss 1, Pp 1-22 (2021)
Abstract We use 20 years of continuous magnetic field measurements from the Ørsted, CHAMP and Swarm satellite missions, supplemented by calibrated platform magnetometer data from the CryoSat-2 satellite, to study time variations of the Earth’s cor
Externí odkaz:
https://doaj.org/article/a21e286303b04daf806b7ccbda37a87d
Publikováno v:
Earth, Planets and Space, Vol 73, Iss 1, Pp 1-22 (2021)
Abstract We present geomagnetic main field and secular variation time series, at 300 equal-area distributed locations and at 490 km altitude, derived from magnetic field measurements collected by the three Swarm satellites. These Geomagnetic Virtual
Externí odkaz:
https://doaj.org/article/7120ec64ba4f47658602c62d202ec659
Autor:
Christopher C. Finlay, Clemens Kloss, Nils Olsen, Magnus D. Hammer, Lars Tøffner-Clausen, Alexander Grayver, Alexey Kuvshinov
Publikováno v:
Earth, Planets and Space, Vol 72, Iss 1, Pp 1-31 (2020)
Abstract We present the CHAOS-7 model of the time-dependent near-Earth geomagnetic field between 1999 and 2020 based on magnetic field observations collected by the low-Earth orbit satellites Swarm, CryoSat-2, CHAMP, SAC-C and Ørsted, and on annual
Externí odkaz:
https://doaj.org/article/bff60328660b45b5a0aaa8c2641073d5
Publikováno v:
Earth, Planets and Space, Vol 72, Iss 1, Pp 1-18 (2020)
Abstract We present the geomagnetic field model COV-OBS.x2 that covers the period 1840–2020. It is primarily constrained by observatory series, satellite data, plus older surveys. Over the past two decades, we consider annual differences of 4-month
Externí odkaz:
https://doaj.org/article/dd6bf9c3d5014d3bbd817cf5061b4d90