SO2 emissions from Popocatepetl volcano: emission rates and plume imaging using optical remote sensing techniques
Por:
Grutter M., Basaldud R., Rivera C., Harig R., Junkerman W., Caetano E., Delgado-Granados H.
Publicada:
1 ene 2008
Categoría:
Atmospheric Science
Resumen:
Sulfur dioxide emissions from the Popocatepetl volcano in central Mexico were measured during the MILAGRO field campaign in March 2006. A stationary scanning DOAS (Differential Optical Absorption Spectrometer) was used to monitor the SO2 emissions from the volcano and the results were compared with traverses done with a COSPEC from the ground and a DOAS instrument on board an ultra-light aircraft. Daytime evolutions as well as day-to-day variation of the SO2 emissions are reported. A value of 2.45 +/- 1.39 Gg/day of SO2 is reported from all the daily averages obtained during the month of March 2006, with large variation in maximum and minimum daily averages of 5.97 and 0.56 Gg/day, respectively. The large short-term fluctuations in the SO2 emissions obtained could be confirmed through 2-D visualizations of the SO2 plume measured with a scanning imaging infrared spectrometer. This instrument, based on the passive detection of thermal radiation from the volcanic gas and analysis with FTI
Filiaciones:
Grutter M.:
Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Mexico City 04510, DF, Mexico
Basaldud R.:
Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Mexico City 04510, DF, Mexico
Rivera C.:
Department of Radio and Space Science, Chalmers University of Technology, Sweden
Harig R.:
Technische Universitat, Hamburg-Harburg, Germany
Junkerman W.:
Institut für Meteorologie und Klimaforschung, Forschungszentrum Karlsruhe, Germany
Caetano E.:
Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Mexico City 04510, DF, Mexico
Delgado-Granados H.:
Univ Nacl Autonoma Mexico, Inst Geofis, Mexico City 04510, DF, Mexico
Gold
|