Results 21 to 30 of about 5,511 (281)

Determination of USV’s Direction Using Satellite and Fluxgate Compasses and GNSS-RTK

open access: yesSensors, 2022
The measurement of a mobile object’s movement direction is performed by means of various analogue and digital devices, including both autonomous and non-autonomous ones.
Artur Makar
doaj   +1 more source

VLF, magnetic bay and Pi2 substorm signatures at auroral and midlatitude ground stations [PDF]

open access: yes, 2002
A superposed epoch analysis of 100–300 substorms is performed to determine the median size and shape of the substorm-associated VLF chorus, magnetic bay, and Pi2 pulsation burst observed at the near-auroral Halley research station, Antarctica, and at the
Freeman, M.P.   +3 more
core   +1 more source

Co-estimating geomagnetic field and calibration parameters: modeling Earth’s magnetic field with platform magnetometer data

open access: yesEarth, Planets and Space, 2021
Models of the geomagnetic field rely on magnetic data of high spatial and temporal resolution to give an accurate picture of the Earth’s internal magnetic field and its time-dependence.
Clemens Kloss   +2 more
doaj   +1 more source

Coordinated studies of the geospace environment using cluster, satellite and ground-based data: An interim review [PDF]

open access: yes, 2005
A little more than four years after its launch, the first magnetospheric, multi-satellite mission Cluster has already tremendously contributed to our understanding about the coupled solar wind - magnetosphere - ionosphere system.
Donovan, E. F.   +28 more
core   +1 more source

Interplanetary magnetic field rotations followed from L1 to the ground : the response of the Earth's magnetosphere as seen by multi-spacecraft and ground-based observations [PDF]

open access: yes, 2011
A study of the interaction of solar wind magnetic field rotations with the Earth's magnetosphere is performed. For this event there is, for the first time, a full coverage over the dayside magnetosphere with multiple (multi)spacecraft missions from dawn ...
Escoubet, P.   +63 more
core   +1 more source

Satellite mapping of the Antarctic gravity field

open access: yesAnnals of Geophysics, 1999
The production and analysis of the Antarctic digital magnetic anomaly map will be greatly aided by complementary gravity data. They help to constrain thickness variations of the crust and related magnetic effects that may be used for correcting long ...
J. W. Kim   +4 more
doaj   +1 more source

Coordinated cluster and ground-based instrument observation of transient changes in the magnetopause boundary layer during an interval of predominantly northward IMF: Relation to reconnection pulses and FTE signatures [PDF]

open access: yes, 2001
We study a series of transient entries into the low-latitude boundary layer (LLBL) of all four Cluster spacecraft during an outbound pass through the mid-afternoon magnetopause ([XGSM,YGSM,ZGSM] ≈ [2,7,9]RE).
Eglitis, P.   +128 more
core   +1 more source

Simulation for MSS-2 low-perigee elliptical orbit satellites: an example of lithospheric magnetic field modelling

open access: yesEarth and Planetary Physics, 2023
A future constellation of at least four geomagnetic satellites (designated Macau Scientific Satellite-1 (MSS-1) and Macau Scientific Satellite-2 (MSS-2)) was recently proposed, to continue high-quality geomagnetic observations in the post-Swarm period ...
Yi Jiang   +3 more
doaj   +1 more source

Using Satellite Magnetic Survey Data for Spatial-Temporal Modeling of the Geomagnetic Secular Variation

open access: yesJournal of geomagnetism and geoelectricity, 1997
The method of natural orthogonal components (NOC) analysis, which separates temporal variations, and spherical harmonic analysis, which models spatial distribution, were combined to model the spatial-temporal variations of the geomagnetic field over the globe.
Golovkov, V. P.   +3 more
openaire   +2 more sources

A superposed epoch analysis of auroral evolution during substorm growth, onset and recovery: open magnetic flux control of substorm intensity [PDF]

open access: yes, 2009
We perform two superposed epoch analyses of the auroral evolution during substorms using the FUV instrument on the Imager for Magnetopause-to-Aurora Global Explorer ( IMAGE) spacecraft. The larger of the two studies includes nearly 2000 substorms.
Hubert, Benoît   +27 more
core   +1 more source

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