Investigation of middle atmospheric dynamics with the help of lidar, radar and airglow measurements over low latitude stations of Brazil

• Grant number: 10/18645-0
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: September 01, 2011
• End date: August 31, 2014
• Field of knowledge: Physical Sciences and Mathematics - Geosciences - Geophysics
• Principal Investigator: Paulo Prado Batista
• Grantee: Amitava Guharay
• Host Institution: Instituto Nacional de Pesquisas Espaciais (INPE). Ministério da Ciência, Tecnologia e Inovação (Brasil). São José dos Campos , SP, Brazil

Abstract

The objective of the present work is to study the wave dynamical processes occurring in the middle atmosphere at low latitude in Brazil, which can be detailed as follows.1) To study propagation characteristics of the Gravity Waves and Tides in the stratosphere, mesosphere and lower thermosphere.2) To examine the contribution of the Gravity Waves to the atmospheric energy budget in terms of momentum and energy (kinetic and potential) estimates by the use of Meteor radar data.3) Develop climatologic study of the Gravity Waves and Tides using long-term wind and temperature data from ground based (equipment in Brazil) and space based instruments (satellite TIMED/SABER)to provide sufficient inputs to the models of Gravity Waves and tide parameterization.4) To understand the complicated processes of wave-wave, wave-tide and wave-mean wind interactions.5) Analyze the effect of Gravity waves on the long period oscillation characteristics, e.g. semiannual (SAO), annual (AO) and quasi-biennial (QBO) oscillations.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

GUHARAY, A.; BATISTA, P. P.; CLEMESHA, B. R.. On the variability of the diurnal tide and coupling with planetary waves in the MLT over Cachoeira Paulista (22.7 degrees S, 45 degrees W). JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, v. 133, p. 7-17, OCT 2015. (10/18645-0)

GUHARAY, A.; BATISTA, P. P.; CLEMESHA, B. R.. Variability of the quasi-2-day wave and interaction with longer period planetary waves in the MLT at Cachoeira Paulista (22.7 degrees S, 45 degrees W). JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, v. 130, p. 57-67, AUG 2015. (10/18645-0)

GUHARAY, A.; BATISTA, P. P.; CLEMESHA, B. R.; BURITI, R. A.. Observations of the intraseasonal oscillations over two Brazilian low latitude stations: A comparative study. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, v. 120, p. 62-69, DEC 2014. (10/18645-0)