Changes in meteorological variables in Coronel Oviedo, Paraguay, during the total solar eclipse of 3 November 1994 |
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| Authors: | Walter Fernández Hugo Hidalgo Genaro Coronel Evelio Morales |
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| Institution: | (1) Laboratory for Atmospheric and Planetary Research, School of Physics and Centre for Geophysical Research, University of Costa Rica, San José, Costa Rica;(2) National Meteorological Institute, Ministry of the Environment and Energy, San José, Costa Rica;(3) Department of Physics, Faculty of Exact and Natural Sciences, National University of Asunción, Asunción, Paraguay |
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| Abstract: | Solar global radiation, air temperature, relative humidity, and wind speed were measured in Coronel Oviedo, Paraguay, within the path of totality of the eclipse of 3 November 1994. Global radiation decreased gradually as the sun was being eclipsed and became negligible during the totality, then increased to their normal values. Surface air temperature decreased significantly, about 3  C, with the lowest value occurring about 7 minutes after totality. Relative humidity, because of its dependence on temperature, increased as a consequence of the temperature decrease. Surface wind speed decreased gradually during the eclipse, as a result of the cooling and stabilization of the atmosphere. Although atmospheric pressure was also measured, it was not possible to record pressure changes clearly associated to the eclipse, since the pressure sensor was only able to detect pressure variations of at least 1 hPa. |
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| Keywords: | solar eclipse meteorolog |
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