Refinements of a classical technique of airglow spectroscopy |
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| Institution: | 1. Instituto de Astronomía y Física del Espacio, CONICET, Ciudad Universitaria, 1428 Buenos Aires, Argentina;1. Division of Pediatric Rheumatology, UPMC & University of Pittsburgh Scleroderma Center;2. Pediatric Scleroderma Clinic, University of Pittsburgh |UPMC Children’s Hospital of Pittsburgh, 4401 Penn Ave, Pittsburgh, PA 15224, USA;1. Pediatric Infectious Diseases Service, School Hospital, Universidade de Pernambuco, Recife, PE, Brazil;2. Tropical Medicine Department, Universidade Federal de Pernambuco, Recife, PE, Brazil;3. Department of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, University of London, London, UK;4. Universidade de Pernambuco, Recife, PE, Brazil;5. Laboratório Central de Pernambuco, Recife, PE, Brazil;6. Laboratório Marcelo Magalhães, Recife, PE, Brazil |
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| Abstract: | We have performed ground-based airglow observations with a tilting filter spectrometer to determine rotational temperatures in the mesopause region since 1984. Although quite simple in principle, the success of the technique depends on a number of non-trivial details, including corrections for measurements under less favorable conditions, as, for instance, full moon nights. Successive improvements have finally led to nearly continuous observations, since August 1997, with more than 200 nights of useful data per year. The technique is described in some detail and recent results are discussed. |
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