@InProceedings{AraújoLimaBatiClem:2015:MLWiRe,
author = "Ara{\'u}jo, L. Rodrigues de and Lima, L. M. and Batista, Paulo
Prado and Clemesha, Barclay Robert",
affiliation = "{} and {} and {Instituto Nacional de Pesquisas Espaciais (INPE)}
and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "MLT wind response to maxima and minima solar activity at low
latitude in the Southern Hemisphere",
year = "2015",
organization = "IUGG General Assembly, 26.",
abstract = "The dynamical characteristics of the mesosphere and lower
thermosphere region (MLT) can be studied from the atmospheric
fields, such as wind and temperature. In this study we have
investigated the MLT wind response to solar maxima 23 and 24 and
solar minima 23 at low latitude in the Southern Hemisphere. The
database consists of wind measurements from the VHF meteor radar
at Cachoeira Paulista (22.7°S, 45°W), which were obtained during
the periods from March 1999 to July 2006, from September 2007 to
October 2008 and from June 2012 to October 2014. The results have
revealed a possible effect of the solar cycle upon zonal and the
meridional wind behavior, in which the eastward winds from May to
July below 90 km during 2000-2002 and 2012-2014 were weaker than
during 2005-2008 interval, whereas above 90 km the westward winds
were stronger for years of solar maximum than years of solar
minimum. From correlation analysis, it is possible to see that
during June for all altitudes, the solar activity may have
contributed to weaken eastward winds below 90 km and enhance
westward winds above 90 km during this period. The southward winds
were more intense for period of May-August at altitudes below 90
km during solar maximum years.",
conference-location = "Prague, Czech Republic",
conference-year = "22 June - 02 July",
urlaccessdate = "16 jun. 2024"
}