搜索结果: 1-11 共查到“理学 thermosphere”相关记录11条 . 查询时间(0.089 秒)
Dynamics of the Antarctic and Arctic mesosphere and lower thermosphere – Part 1: Mean winds
the Antarctic and Arctic mesosphere lower thermosphere Mean winds
2010/11/29
Zonal and meridional winds have been measured in the upper mesosphere and lower thermosphere at polar latitudes using two ground-based meteor radars. One radar is located at Rothera (68° S, 68° W) in ...
Study on the impact of sudden stratosphere warming in the upper mesosphere-lower thermosphere regions using satellite and HF radar measurements
sudden stratosphere warming the upper mesosphere-lower thermosphere regions satellite and HF radar measurements
2010/8/12
The occurrence of a sudden stratospheric warming (SSW) excites disturbances in the mesosphere-lower thermospheric (MLT) wind and temperature. Here, we have examined the high frequency (HF) radar wind ...
The 16-day wave in the Arctic and Antarctic mesosphere and lower thermosphere
16-day wave Arctic and Antarctic mesosphere lower thermosphere
2010/2/21
The 16-day planetary wave in the polar mesosphere and lower thermosphere has been investigated using meteor radars at Esrange (68° N, 21° E) in the Arctic and Rothera (68° S, 68° W) in the Antarctic. ...
Bayesian calibration of the Thermosphere-Ionosphere Electrodynamics General Circulation Model (TIE-GCM)
Bayesian calibration Thermosphere-Ionosphere Electrodynamics General Circulation Model
2010/2/5
In this paper, we demonstrate a procedure for calibrating a complex computer simulation model having uncertain inputs and internal parameters, with application to the NCAR Thermosphere-Ionosphere-Elec...
The two-day wave in the Antarctic and Arctic mesosphere and lower thermosphere
two-day wave Antarctic Arctic mesosphere lower thermosphere
2009/9/11
There have been comparatively few studies reported of the 2-day planetary wave in the middle atmosphere at polar latitudes. Here we report on a study made using high-latitude meteor radars at Rothera ...
Atmospheric Trends Above Finland:I Mesosphere and Thermosphere
Ionosphere global change evolution of the atmosphere ionosphere atmosphere interactions atmospheric composition and structure, atmosphere
2009/6/10
In the present study we analyse various long-term data series of measurements run by the
Sodankylä Geophysical Observatory for possible indications of cooling trends in the upper atmosphere.We r...
ELECTRIC PROPERTIES OF THERMOSPHERE-PLASMASPHERE SYSTEM ESTIMATED FROM GROUND-BASED DATA
ELECTRIC PROPERTIES GROUND-BASED DATA THERMOSPHERE-PLASMASPHERE SYSTEM
2009/4/8
The current density in the dynamo region is estimated from thermospheric
neutral wind pattern and plasmaspheric electric field. The diurnal variation
of the meridional and the zonal component of the...
TD-88Up - UPGRADED NEUTRAL EARTH'S THERMOSPHERE TOTAL DENSITY TD-88 MODEL
Earth the total density TD-88 model the Earth's neutral thermosphere
2010/10/29
Improved constants of the total density TD-88 model for the Earth's neutral thermosphere are calculated. The model is fully functional within the height range of 200 to 500 km, with fixed values of th...
Observations of lunar tides in the mesosphere and lower thermosphere at Arctic and middle latitudes
lunar tides mesosphere lower thermosphere Arctic middle latitudes
2009/1/15
Meteor radars have been used to measure the horizontal winds in the mesosphere and lower thermosphere over Castle Eaton (52° N) in the UK and over Esrange (68° N) in Arctic Sweden. We consider a 16-ye...
The wintertime two-day wave in the polar stratosphere, mesosphere and lower thermosphere
wintertime two-day wave polar stratosphere mesosphere lower thermosphere
2008/10/29
Recent observations of the polar mesosphere have revealed that waves with periods near two days reach significant amplitudes in both summer and winter. This is in striking contrast to mid-latitude obs...
Remote sensing lower thermosphere wind profiles using non-specular meteor echoes
wind profiles non-specular meteor echoes
2017/3/22
This article describes a new method of measuring wind
velocity profiles between 93 km and 110 km altitude by
tracking non-specular meteor echoes as neutral winds
transport the plasma trails. This r...