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Mesospheric Energy Loss Rates by Oh and O2 Emissions at 23°S : Volume 15, Issue 6 (30/11/-0001)

By Fagundes, P. R.

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Book Id: WPLBN0003974379
Format Type: PDF Article :
File Size: Pages 8
Reproduction Date: 2015

Title: Mesospheric Energy Loss Rates by Oh and O2 Emissions at 23°S : Volume 15, Issue 6 (30/11/-0001)  
Author: Fagundes, P. R.
Volume: Vol. 15, Issue 6
Language: English
Subject: Science, Annales, Geophysicae
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
-0001
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Sahai, Y., Takahashi, H., Gobbi, D., & Fagundes, P. R. (-0001). Mesospheric Energy Loss Rates by Oh and O2 Emissions at 23°S : Volume 15, Issue 6 (30/11/-0001). Retrieved from http://hawaiilibrary.net/


Description
Description: Instituto Nacional de Pesquisas Espaciais-INPE-C.P. 515-12.201-970-São José des Campos, SP, Brazil; e-mail: fagundes@fislume.laser.impe.br. The nightglow OH(9, 4) and O2 atmospheric (0,1) band emission intensities and their rotational temperatures T(OH) and T(O2), respectively, observed at Cachoeira Paulista (23°S, 45°W), Brazil, during the period from October 1989 to December 1990, have been analyzed to study the nighttime mesospheric energy loss rates through the radiations from the vibrationally excited OH* and electronically excited O2* bands. The total emission rates of the OH Meinel bands, O2 atmospheric (0,0) and O2 infrared atmospheric (1Δg) bands were calculated using reported data for the relative band intensities I''')/I(9,4), IO2A(0,0)/IO2A(0,1) and IO2(1Δg)/IO2A(0,1). It was found that there is a minimum in equivalent energy loss rate by the OH* Meinel bands during December/January (equivalent energy loss rate of 0.39K/day*, where day* means averaged over the night) and maximum in equivalent energy loss rate during September (equivalent energy loss rate of 0.98K/day*). Energy loss rate by the O2* radiation, on the other hand, is weaker than that by the OH* Meinel bands, showing equivalent energy loss rates of 0.12K/day* and 0.22K/day* during January and September, respectively.

Summary
Mesospheric energy loss rates by OH and O2 emissions at 23°S

 

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