@InProceedings{TakahashiWFMWGNS:2006:AtGrWa,
author = "Takahashi, Hisao and Wrasse, Cristiano Max and Fechine, Joaquim
and Medeiros, A. F. and Wickert, J. and Gobbi, Delano and
Nakamura, T. and Shiokawa, K.",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Universidade Federal de Campina
Grande} and {The German Research Center for Earth Sciences} and
{Instituto Nacional de Pesquisas Espaciais (INPE)} and Research
Institute for sustainable humanosphere, Kyoto University and
Solar-Terrestrial Environment Laboratory, Nagoya University",
title = "Atmospheric gravity wave activity in the equatorial region
observed by optical and radio-wave techniques (solicited)",
booktitle = "Proceedings...",
year = "2006",
organization = "Committe on Space Research, 36. (COSPAR).",
abstract = "Gravity wave signatures in the upper mesosphere to lower
thermosphere (MLT) in the equatorial and low latitude regions have
been investigated by airglow imaging technique from the south
American sector at Cariri (7 S, 36 W). The wave characteristics,
direction of propagation and frequency of occurrence, were
analyzed in order to understand the wave generation and
propagation schemes. Temperature variability in the stratosphere
observed by CHAMP satellite GPS radio-occultation measurement was
also used to find out a region of high gravity wave activity in
the upper troposphere to stratosphere. It was found that at Cariri
a major part of the observed waves (75 %) has characteristics of
ducting and/or evanescent forms. Only 25 % of them showed the
vertical propagation form from troposphere to mesosphere, and most
of them came from an area of 250 km from the observation site.
These results will be compared with the data from the western
pacific region and presented.",
conference-location = "Beijing, China",
conference-year = "2006-07-16",
label = "self-archiving-INPE-MCTIC-GOV-BR",
language = "en",
targetfile = "takahashi_atmospheric.pdf",
urlaccessdate = "11 maio 2024"
}