Results 21 to 30 of about 8,248 (257)

First direct evidence of meso-scale variability on ion-neutral dynamics using co-located tristatic fpis and EISCAT radar in Northern Scandinavia [PDF]

open access: yes, 2005
International audienceThis paper presents the first direct empirical evidence that mesoscale variations in ion velocities must be taken into consideration when calculating Joule heating and relating it to changes in ion temperatures and momentum transfer
Aylward, A. D.   +19 more
core   +1 more source

MSIS‐UQ: Calibrated and Enhanced NRLMSIS 2.0 Model With Uncertainty Quantification

open access: yesSpace Weather, 2022
The Mass Spectrometer and Incoherent Scatter radar (MSIS) model family has been developed and improved since the early 1970's. The most recent version of MSIS is the Naval Research Laboratory (NRL) MSIS 2.0 empirical atmospheric model.
Richard J. Licata   +4 more
doaj   +1 more source

Thermospheric winds and temperatures above Mawson, Antarctica, observed with an all-sky imaging, Fabry-Perot spectrometer [PDF]

open access: yes, 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   +1 more source

Impacts of Lower Thermospheric Atomic Oxygen on Thermospheric Dynamics and Composition Using the Global Ionosphere Thermosphere Model [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2020
AbstractThe exchange of energy between the lower atmosphere and the ionosphere thermosphere system is not well understood. One of the parameters that is important in the lower thermosphere is atomic oxygen. It has recently been observed that atomic oxygen is higher in summer at ∼95 km.
Garima Malhotra   +5 more
openaire   +3 more sources

Front Matter

open access: yesGeophysical Monograph Series, Page i-xiv., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
wiley  

+1 more source

Significant Variations of Thermospheric Nitric Oxide Cooling during the Minor Geomagnetic Storm on 6 May 2015

open access: yesUniverse, 2022
Using observations by the SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) instrument on board the TIMED (Thermosphere-Ionosphere-Mesosphere Energetics and Dynamics) satellite and simulations by the TIEGCM (Thermosphere-Ionosphere ...
Zheng Li   +6 more
doaj   +1 more source

Dynamics of Titan's thermosphere [PDF]

open access: yes, 2000
We estimate the wind speeds in Titan’s thermosphere by considering the various terms of the wind equation, without actually solving it, with a view to anticipating what might be observed by the Cassini spacecraft in 2004.
Mendillo, M., Yelle, R., Rishbeth, H.
core   +1 more source

Impact of gravity wave drag on the thermospheric circulation: implementation of a nonlinear gravity wave parameterization in a whole-atmosphere model [PDF]

open access: yesAnnales Geophysicae, 2019
To investigate the effects of the gravity wave (GW) drag on the general circulation in the thermosphere, a nonlinear GW parameterization that estimates the GW drag in the whole-atmosphere system is implemented in a whole-atmosphere general circulation ...
Y. Miyoshi, E. Yiğit
doaj   +1 more source

The thermospheric auroral red line polarization: confirmation of detection and first quantitative analysis

open access: yesJournal of Space Weather and Space Climate, 2013
The thermospheric atomic oxygen red line is among the brightest in the auroral spectrum. Previous observations in Longyearbyen, Svalbard, indicated that it may be intrinsically polarized, but a possible contamination by light pollution could not be ruled
Moen Joran   +9 more
doaj   +1 more source

Sharing Data Collections and Models for Ionosphere, Thermosphere and Plasmasphere Research [PDF]

open access: yes, 2022
PITHIA-NRF (Plasmasphere Ionosphere Thermosphere Integrated Research Environment and Access services: a Network of Research Facilities) is a project funded by the European Commission’s H2020 programme to build a distributed network of observing ...
Kiss, T.   +6 more
core  

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