Earth, Planets and Space, 2020 We present a statistical study of electromagnetic ion cyclotron (EMIC) waves observed at Antarctic station (geographic $$70.7{^\circ }\,\hbox {S}$$ 70.7 ∘ S , $$11.8{^\circ }\,\hbox {E}$$ 11.8 ∘ E , $$L=5$$ L = 5 ) on quiet and disturbed days during 2011–
Aditi Upadhyay +4 more
doaj +1 more source
AE, D ST and their SuperMAG Counterparts : the effect of improved spatial resolution in geomagnetic indices [PDF]
, 2020 For decades, geomagnetic indices have been used extensively to parameterize space weather events, as input to various models and as space weather specifications.
Bergin, Aisling +2 more
core +2 more sources
Occurrence of blanketing Es layer (Esb) over the equatorial region during the peculiar minimum of solar cycle 24 [PDF]
Annales Geophysicae, 2014 A thin and highly dense sporadic E layer, which can occasionally block the upper ionospheric layers, is called blanketing sporadic E (Esb). We present the statistical seasonal local time occurrence pattern of Esb at equatorial station Tirunelveli (8 ...
V. Yadav +4 more
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The Geomagnetic Kp Index and Derived Indices of Geomagnetic Activity [PDF]
Space Weather, 2021 AbstractThe geomagnetic Kp index is one of the most extensively used indices of geomagnetic activity, both for scientific and operational purposes. This article reviews the properties of the Kp index and provides a reference for users of the Kp index and associated data products as derived and distributed by the GFZ German Research Centre for ...
Matzka, J. +8 more
openaire +6 more sources
Investigating the utility of a high-temperature Thellier-style paleointensity experimental protocol
Earth, Planets and Space, 2021 High-quality data are vital to the research field of paleointensity, which has long suffered from poor-quality and/or sparse data. Previous paleointensity work has established that repeatedly heating specimens increases the opportunity for thermochemical
J. Michael Grappone +2 more
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Scientific Reports, 2020 The Killari Earthquake (Moment magnitude 6.1) of September 30, 1993, occurred in the state of Maharashtra, India, has an epicenter (18°03′ N, 76°33′ E) located at ~ 40 km SSW of Killari Town.
B. V. Lakshmi +3 more
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Research on Ground Calibration Technology for Geomagnetism Sensors
MATEC Web of Conferences, 2018 The measurements of geomagnetism sensors are often affected by self-factors, install-factors and environment factors, therefore they often exist error and cause measurement accuracy reduction.
Hui Zhang, Chuanjun Li, Yukuan Liu
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Kinematic dynamo action in a sphere. I. Effects of differential rotation and meridional circulation on solutions with axial dipole symmetry [PDF]
, 2000 A sphere containing electrically conducting fluid can generate a magnetic field by dynamo action, provided the flow is sufficiently complicated and vigorous. The dynamo mechanism is thought to sustain magnetic fields in planets and stars.
Arnoldi W. E. +8 more
core +1 more source
A Mechanism for Large-Amplitude Parallel Electrostatic Waves Observed at the Magnetopause
Plasma, 2023 Large-amplitude electrostatic waves propagating parallel to the background magnetic field have been observed at the Earth’s magnetopause by the Magnetospheric Multiscale (MMS) spacecraft.
Gurbax Singh Lakhina +4 more
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Simultaneous observations of ESF irregularities over Indian region using radar and GPS [PDF]
Annales Geophysicae, 2008 In this paper, we present simultaneous observations of temporal and spatial variability of total electron content (TEC) and GPS amplitude scintillations on L1 frequency (1.575 GHz) during the time of equatorial spread F (ESF) while the MST radar (53 ...
S. Sripathi +5 more
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