Results 31 to 40 of about 2,463,978 (199)
Thermospheric winds and temperatures above Mawson, Antarctica, observed with an all-sky imaging, Fabry-Perot spectrometer [PDF]
, 2009 A new all-sky imaging Fabry-Perot spectrometer has been installed at Mawson station (67°36' S, 62°52' E), Antarctica. This instrument is capable of recording independent spectra from many tens of locations across the sky simultaneously.
Anderson, C. +9 more
core +3 more sources
Investigation of energy transport and thermospheric upwelling during quiet magnetospheric and ionospheric conditions from the studies of low- and middle-altitude cusp [PDF]
Annales Geophysicae, 2015 We investigate energy fluxes and small, kilometre-scale Birkeland currents in the magnetospheric cusp at a 1–3 Earth radii altitude and in the ionosphere using satellites when they were, according to the Tsyganenko model, in magnetic conjunction ...
T. Živković +5 more
doaj +1 more source
, 2021 TND-IGG RL01: This dataset is the first release of thermospheric neutral densities (TND) processed at the Institute of Geodesy and Geoinformation (IGG), University of Bonn, Germany. TNDs are derived from accelerometer measurements of the satellites GRACE-
Forootan, Ehsan +5 more
core +1 more source
Thermospheric Temperature and Density Variability During 3–4 February 2022 Minor Geomagnetic Storm
Space Weather, 2023 Themospheric conditions during a minor geomagnetic event of 3 and 4 February 2022 has been investigated using disk temperature (Tdisk) observations from Global‐scale Observations of the Limb and Disk (GOLD) mission and model simulations.
F. I. Laskar +10 more
doaj +1 more source
Longitudinal structures in lower thermosphere density [PDF]
Journal of Geophysical Research: Space Physics, 1999 Thermospheric densities near 200 km from the Satellite Electrostatic Triaxial Accelerometer (SETA) experiment during July and December 1983 are analyzed to reveal two types of longitude structures: (1) the so‐called “longitude/UT” variation which has been noted in higher‐altitude satellite data and incorporated into the mass spectrometer incoherent ...
openaire +1 more source
Drag Coefficient Constraints for Space Weather Observations in the Upper Thermosphere
Space Weather, 2022 The space weather research community relies heavily on thermospheric density data to understand long‐term thermospheric variability, construct assimilative, empirical, and semiempirical global atmospheric models and validate model performance. One of the
Valerie Bernstein, Marcin Pilinski
doaj +1 more source
Data assimilation of thermospheric mass density
Space Weather, 2012 Accurate modeling of thermospheric mass density variation is of foremost importance to low Earth orbital prediction. The accuracy of empirical neutral density models based on global indices for solar and geomagnetic activity is inherently limited by the resolution of these indices.
Matsuo, T. +3 more
openaire +3 more sources
, 2011 Building on work from previous studies a strong case is presented for the existence of a long-term density decline in the thermosphere. Using a specially developed orbital propagator to predict satellite orbit evolution, combined with a new and accurate ...
Lewis, H.G. +5 more
core +1 more source
An empirical model of the thermospheric mass density derived from CHAMP satellite [PDF]
Annales Geophysicae, 2018 In this study, we present an empirical model, named CH-Therm-2018, of the thermospheric mass density derived from 9-year (from August 2000 to July 2009) accelerometer measurements from the CHAllenging Mini-satellite Payload (CHAMP) satellite at ...
C. Xiong +4 more
doaj +1 more source
Thermospheric Parameters during Ionospheric G-Conditions
Remote Sensing, 2021 For the first time thermospheric parameters (neutral composition, exospheric temperature and vertical plasma drift related to thermospheric winds) have been inferred for ionospheric G-conditions observed with Millstone Hill ISR on 11–13 September 2005 ...
Loredana Perrone +2 more
doaj +1 more source