Climatology and trends of mesospheric (58–90 km) temperatures based upon 1982–1986 SME Limb scattering profiles

摘要: Global observations of ultraviolet limb radiances from the Solar Mesosphere Explorer (SME) have been analyzed to obtain atmospheric temperature profiles over altitude range 58–90 km. The analysis is based upon vertical Rayleigh scattering, which are derived SME radiances. Comparisons provided with lidar and Stratosphere Sounder (SAMS) at 65 km altitude, previous climatologies mesosphere. monthly average presented for 10° latitude intervals between 70°S 70°N latitudes, January 1982 September 1986 time period. resolution (∼4 km), latitudinal coverage (with 5° resolution), 5-year term, mesopause these allow new insight into mesospheric structure unique trends corresponding 1982–1986 solar maximum minimum cycle. define large (10–30 K) semiannual oscillations equatorial temperatures; mid-latitude inversions in winter mesosphere accompanied by steep gradients low −1.5 +1 K/year trends, suggest an intensification latitude-dependent ∼4 times smaller than those reported Mohanakumar (1985), Groves (1986), Chanin et al. (1987) cycle variations temperatures region 65–70