Upper and Middle Atmosphere
A new coupled middle atmosphere and thermosphere general circulation model: Studies of dynamic, energetic and photochemical coupling in the middle and upper atmosphere
... the upper atmosphere are {after Meyer [1999]) (i) In situ forcing due to thermospheric energy sources such as EUV and high latitude Joule heating; (ii) Planetary wave modulation of upwardly propagating ...
294
Longitudinal structure of stationary planetary waves in the middle atmosphere – extraordinary years
... The stratosphere plays an important role as the atmospheric layer, which protects us by its ozone content from the dam- aging solar ultraviolet radiation, which to some extent affects weather and climate, which affects ...
12
Simulation of the ENSO influence on the extra tropical middle atmosphere
... The impact of the El Niño Southern Oscillation (ENSO) on the Northern Hemisphere mid-winter zonal wind, tempera- ture, and stationary planetary waves (SPWs) is evaluated using the Middle and Upper ...
9
Simulation of planetary waves and their influence on the zonally averaged circulation in the middle atmosphere
... the Upper Atmosphere Research Satellite (UARS) shows a presence of the strong large-scale longitu- dinal variations of the emission rates and horizontal winds in the mesosphere and lower thermosphere ...
12
Satellite observations of middle atmosphere–thermosphere vertical coupling by gravity waves
... The correlation coefficients between two data sets above the polar night jet show interesting variations with altitude. This variation changes from year to year. For January 2010, the good positive correlation is found ...
20
The influence of photochemistry on gravity waves in the middle atmosphere
... dent middle atmospheric photochemical ...the upper mesosphere and lower thermosphere, there is great discrepancy between models and observations of the oxygen ...
7
The Southern Hemisphere middle atmosphere: climatology and waves
... The base analysis used to produce stratospheric data sets is usually an upper product of what is primarily an operational tropospheric analysis scheme typically used for inclusion in for[r] ...
277
The CPW-TEC project: Planetary waves in the middle atmosphere and ionosphere
... There already exist some ideas about how PW may pene- trate into the ionosphere. Pancheva et al. (2002) suggested a modulation of upward propagating tides through PW, or PW associated neutral wind variations inducing ...
5
MIPAS observations of ozone in the middle atmosphere
... GOMOS was a stellar occultation spectrometer on board the ESA’s Envisat space platform (Bertaux et al., 2010). It op- erated from August 2002 to April 2012. Ozone density pro- files are derived from GOMOS UV–visible ...
26
Why CO 2cools the middle atmosphere – a consolidating model perspective
... suited to constrain the relative effect strengths. Uncertainties are large because the window-grey model entails a number of gross simplifications, including in particular: the assump- tion of vertically well-mixed ...
19
Nonlinear forcing mechanisms of the migrating terdiurnal solar tide and their impact on the zonal mean circulation
... the middle atmosphere using a mechanis- tic global circulation ...the middle and upper atmosphere dynamics, including an irregular change of the terdiurnal amplitude, a weakening of ...
11
Simulations of superrotation using a GCM for Venus’ middle atmosphere
... the upper atmospheric sciences above 100 km, a VMAGCM has not been developed so ...the middle and upper atmo- ...the middle atmosphere is connected with that of the lower ...lower ...
9
Validity on radar observation of middle and upper atmosphere dynamics
... of middle- and upper-atmosphere ...the atmosphere as a result of gravity wave (GW) ...the atmosphere is that it has a static vertical gradient in terms of distribution and the ...
5
The Middle Miocene climate as modelled in an atmosphere-ocean-biosphere model
... and atmosphere heat transport reflects the so called Bjerknes ...the atmosphere and the ocean heat storage do not vary much, then the total heat transport will not vary much (Bjerknes, ...
20
A study to assess the functional and aesthetic outcome of soft tissue reconstruction of leg and foot defects using conventional and microvascular free flap techniques
... Anatomy: Sural artery arises from the popliteal artery. Along with sural nerve it courses between the heads of gastrocnemius and it passes the lateral edge of Achilles tendon. It supplies skin of lower and middle ...
85
The dynamical parameters of turbulence theory as they apply to middle atmosphere studies
... the middle atmosphere is complicated by some subtle points relating to the application of existing ...in middle atmosphere studies are ...
17
A study on diabetic foot and its association with peripheral artery disease
... PREVALANCE OF PAD ACCORDING TO SOCIO ECONOMIC STATUS SOCIO ECONOMIC STATUS FREQUENCY PERCENTAGE % UPPER 0 0 UPPER MIDDLE 1 10 LOWER MIDDLE 12 32.43 UPPER LOWER 34 42.5 LOWER 10 35.71 PRE[r] ...
107
Hybrid simulations of proton precipitation patterns onto the upper atmosphere of Mars
... He ++ precipitation patterns on Mars. The analysis also im- plies that new high spatial resolution 3D hybrid simulations with a self-consistent ionosphere should be performed in the future in order to resolve accurately ...
14
Unique, non-Earthlike, Meteoritic Ion Behavior in Upper Atmosphere of Mars
... an atmosphere has upper atmospheric metal ion layers resulting from the high-speed deposition and subsequent ablation of solar system dust ...until upper atmospheric ion composition measure- ments ...
7
Energetic particle precipitation into the middle atmosphere triggered by a coronal mass ejection
... the integrated absorption of cosmic radio noise through the ionosphere, with increased absorption due to additional ionization due to both proton and electron precipitation. They have previously been shown to respond to ...
12