Results 21 to 30 of about 7,987 (248)

Thermospheric tides during thermosphere mapping study periods [PDF]

Advances in Space Research, 1987
Neutral exospheric temperatures at 53°, 43° and 33° latitude from Millstone Hill steerable-antenna Thomson scatter measurements, and at 19° latitude from the Arecibo Observatory, obtained during three Thermosphere Mapping Study (TMS) coordinated campaign intervals during 1984 and 1985. are analyzed for diurnal and semidiurnal tidal components.
Forbes, J. M., Oller, William L., Burnside, R. G., Tepley, C. A.   +3 more
openaire   +2 more sources

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

Annales 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

Journal 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, Bommier Véronique, Wedlund Cyril Simon, Lamy Hervé, Amblard Pierre-Olivier, Barthélémy Mathieu, Lilensten Jean, Rothkaehl Hanna, Eymard Julien, Ribot Jocelyn   +9 more
doaj   +1 more source

A system science perspective of the drivers of equatorial plasma bubbles

Frontiers in Astronomy and Space Sciences, 2023
The complex drivers of equatorial plasma bubbles and resulting scintillation requires a system science approach spanning the Magnetosphere-Ionosphere-Thermosphere-Mesosphere disciplines.
Jeff Klenzing, Alexa J. Halford, Guiping Liu, Guiping Liu, Jonathon M. Smith, Jonathon M. Smith, Yongliang Zhang, Kate Zawdie, Naomi Maruyama, Rob Pfaff, Rebecca L. Bishop   +10 more
doaj   +1 more source

Thermospheric targets [PDF]

Eos, Transactions American Geophysical Union, 2007
Recent decades have seen great progress in computer modeling of the global thermosphere‐ionosphere system. The models are derived by solving simultaneously the conservation equations of mass, momentum, and energy that govern the concentrations, velocities, and temperatures of the ions, electrons, and neutral gases.
openaire   +1 more source

Martian Thermospheric Warming Associated With the Planet Encircling Dust Event of 2018

Geophysical Research Letters, 2020
We report the first observations of Martian thermospheric warming associated with the Planet Encircling Dust Event (PEDE) of 2018. We used dayglow observations made by the Imaging Ultraviolet Spectrograph instrument aboard the MAVEN spacecraft to ...
S. K. Jain, S. W. Bougher, J. Deighan, N. M. Schneider, F. González Galindo, A. I. F. Stewart, R. Sharrar, D. Kass, J. Murphy, D. Pawlowski   +9 more
doaj   +1 more source

Productino of KSR-III Airglow Photometers to Measure MUV Airglows of the Upper Atmosphere Above the Korean Peninsular

Journal of Astronomy and Space Sciences, 2002
We have constructed two flight models of airglow photometer system (AGP) to be onboard Korea Sounding Rocket-III (KSR-III) for detection of MUV dayglow above the Korean peninsular.
T. H. Oh, K. C. Park, Y. H. Kim, Y. Yi, J. Kim   +4 more
doaj   +1 more source

Dynamical Heating in the Martian Thermosphere 

Journal of Geophysical Research: Planets, 2022
Dynamical heating and cooling are prominent features of planetary atmospheres resulting in thermospheric structures on Venus, Earth and Mars. The purpose of this study is to determine the location and amplitude of localized heating regions in the Martian thermosphere, confirm that they occur in regions of wind convergence, and to compare the observed ...
M. D. Pilinski, K. J. Roeten, S. W. Bougher, M. Benna   +3 more
openaire   +1 more source

New perspectives on thermosphere tides: 2. Penetration to the upper thermosphere [PDF]

Earth, Planets and Space, 2014
In this paper, we present new multi-year and 72-day mean seasonal-latitudinal tidal structures in exospheric temperature derived from joint analysis of CHAMP and GRACE accelerometer measurements. These results include diurnal tides DE3, DE2, D0, and DW2 and semidiurnal tides S0, SE1, SE2, SE3, SW4, and SW6.
Forbes, J., Zhang, X., Bruinsma, S.
openaire   +3 more sources

EU Space Law and Earth's Boundaries: Integrating Environmental Impact Assessment and Corporate Due Diligence

Global Policy, EarlyView.
ABSTRACT The European Union's proposed Space Law aims to establish a unified approach for sustainable space activities across the EU. While the EU's satellite constellations contribute to sustainability efforts, they can also have negative environmental impacts.
Elena Cirkovic, Vitali Braun
wiley   +1 more source