@InProceedings{BatistaClemSimo:2015:LoTeTr,
author = "Batista, Paulo Prado and Clemesha, Barclay Robert and Simonich,
Dale",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)}",
title = "Long-term temperature trends in the 35-65 km range by Rayleigh
Lidar measurements at 23° S from 1993 to 2014",
year = "2015",
organization = "IUGG General Assembly, 26.",
abstract = "A Lidar tuned to sodium resonance line at 589 nm has been operated
at S{\~a}o Jos{\'e} dos Campos, Brazil (23 deg S, 46 deg W)
since 1993 processing the Rayleigh signal from which the
temperatures from ~35 to ~65 km are retrieved in a nightly mean
basis. In order to remove tidal effects only profiles obtained
from 18:30 LT to 23:30 LT were considered in this analysis. We
used these nightly profiles to determine the monthly temperature
profiles from April 1993 to April 2014. The mean temperature
characteristics for every year and for the whole period are
obtained and do not differ too much from the previous climatology
using shorter data series. A model including solar cycle, southern
oscillation index, QBO, Annual and Semiannual oscillations and
Linear trends has been fitted to the monthly temperatures every 3
km from 36 to 63 km. Variable linear trends with altitudes are
determined with a maximum negative trends at 54-55 km attaining
3.15 K/decade.",
conference-location = "Prague, Czech Republic",
conference-year = "22 June - 02 July",
urlaccessdate = "25 abr. 2024"
}