[PDF] Top 20 Observations of NO in the upper mesosphere and lower thermosphere during ECOMA 2010
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Observations of NO in the upper mesosphere and lower thermosphere during ECOMA 2010
... the upper mesosphere and lower thermosphere region (Sharp, 1978; Witt et ...al., 2010; Enell et ...the ECOMA project in December ... See full document
11
Super Dual Auroral Radar Network observations of fluctuations in the spectral distribution of near range meteor echoes in the upper mesosphere and lower thermosphere
... the upper mesosphere and lower thermosphere ...winds. Observations of spectral width distribution variations made by the radars allow an independent determination of the systematic ... See full document
10
Super Dual Auroral Radar Network observations of fluctuations in the spectral distribution of near range meteor echoes in the upper mesosphere and lower thermosphere
... the upper mesosphere and lower thermosphere ...winds. Observations of spectral width distribution variations made by the radars allow an independent determination of the systematic ... See full document
12
Production and transport mechanisms of NO in the polar upper mesosphere and lower thermosphere in observations and models
... Another way to study how much NO is being transported downward is to calculate the percentage that remains from a specific altitude level. Because WACCM places the NO en- hancements 5 km higher than SOFIE and dynamics ... See full document
15
ANGEO - Diurnal tidal variability in the upper mesosphere and lower thermosphere
... between observations of the diurnal tide from measurements made with the partial re¯ection drift radar at Kauai, Hawaii and the migrating tidal results determined from HRDI and WINDII ... See full document
11
A reassessment of SuperDARN meteor echoes from the upper mesosphere and lower thermosphere
... and upper atmosphere. Phenomena in the upper mesosphere and lower thermosphere (MLT) can be studied as the SuperDARN radars act effectively as meteor radars at near ...echo ... See full document
15
Understanding the Effects of Polar Mesospheric Clouds on the Environment of the Upper Mesosphere and Lower Thermosphere
... the Lower Thermosphere: A Summertime Hydrogen Hole Given the evidence from Figure 12 that the timing of the onset of the PMC season correlates with the abun- dance of atomic hydrogen up into the ... See full document
15
ANGEO - Cooling of the mesosphere and lower thermosphere due to doubling of CO2
... Spectral mesosphere/lower thermosphere model ...the mesosphere and lower thermosphere (MLT) to doubling of CO 2 has been ...the upper mesosphere and again increases ... See full document
12
Coordinated observations of the dynamics and coupling processes of mesosphere and lower thermosphere winds with MF radars at the middle high latitude
... oscillations during a time of strong eastward winds The temporal evolution of the meridional and zonal wind spectra obtained from Wakkanai and Yamagawa around the winter solstice period of 24–31 December 1996 were ... See full document
8
Cooperative wind observation in the upper mesosphere and lower thermosphere with foil chaff technique, the MU radar, and Yamagawa MF radar
... 3. Observed Results 3.1 Foil chaff observation According to the procedure described in Section 2, wind velocity profiles were calculated for the two observations by rocket launches at 1200 and 1315 UT, and are ... See full document
11
Observations of planetary waves in the mesosphere-lower thermosphere during stratospheric warming events
... wind reversals triggering those events cover maximum mag- nitudes between −11 and −30 m s −1 and last for 4 to 16 days. However the observations show consistent PW behavior dur- ing SSW events. That is, each event ... See full document
9
Effect of planetary waves on cooling the upper mesosphere and lower thermosphere by the CO
... 2. The wave-caused variation in heat influx in the CO 2 15- µm band, averaged over the wave period, depends on both the amplitude of temperature and the temperature profile in the atmosphere unperturbed by the wave. ... See full document
12
Observations of lunar tides in the mesosphere and lower thermosphere at Arctic and middle latitudes
... the observations, it can be seen that the model reproduces the seasonal behaviour well, but that there is a systematic phase di fference in which the model phases lead the observed phases by a ... See full document
31
The gradient wind in the mesosphere and lower thermosphere
... Comparison of Figs. 7 and 8 indicate that in the tropical winter latitudes, a southward acceleration maximum cen- tered at 100 km is fairly well-correlated with a node in the diurnal meridional wind. The node is situated ... See full document
11
The dynamics of the mesosphere and lower thermosphere: a brief review
... the mesosphere-lower thermosphere (MLT) (60 to 110 km) is dominated by waves and their ...MLT. Observations from extended ground-based networks, satellites as well as numerical modelling show ... See full document
13
Radar observations of the diurnal tide in the tropical mesosphere lower thermosphere region: Longitudinal variabilities
... the mesosphere and lower thermosphere (MLT) ...wind observations of different durations from five equatorial/low latitude sites in the Indian, Indonesian and Pacific sectors: Tirunelveli ... See full document
12
Peculiarities of mesosphere/lower thermosphere parameters during solar minimum 23/24
... waves during the mini- mum, in Figure 3 MR summer mean zonal prevailing winds at 6 height gates are pre- ...the upper and lower height gates is ...the lower height gates the winds and GW ... See full document
10
Some anomalies of mesosphere/lower thermosphere parameters during the recent solar minimum
... The lower thermosphere wind reversal is owing to mo- mentum deposition of gravity waves (GWs) in the upper ...GW. During summer/winter, strong meso- spheric easterlies/westerlies prevent ... See full document
6
Long-term trends and decadal variability of upper mesosphere/lower thermosphere gravity waves at midlatitudes
... The MLT region is accessible to radar wind measurements, although standard methods only deliver limited temporal and thus spectral resolution of GW. On the other hand, however, radar measurements are cost effective, ... See full document
10
ANGEO - Global empirical wind model for the upper mesosphere/lower thermosphere. I. Prevailing wind
... the upper mesosphere/lower thermosphere annual and semiannual harmonics of seasonal wind velocity variations make a 80±90% contribution to the total variance of monthly mean velocity values ... See full document
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