ABSTRACT
Imager SWIR Shortwave infrared TANSO-FTS Ÿermal and near-infrared sounder for carbon
observation-Fourier transform spectrometer TIR Ÿermal infrared TM Ÿematic Mapper TOMS Total Ozone Mapping Spectrometer TOVS-HIRS TIROS Operational Vertical Sounder-High
Resolution Infrared Radiation Sounder UV Ultraviolet VAAC Volcanic Ash Advisory Center VNIR Visible and near infrared
Acronyms and De¤nitions .................................................................................................................515 20.1 Introduction .............................................................................................................................516 20.2 What Do Volcanoes Do Ÿat We Might Be Interested in Measuring? ...........................516 20.3 Why Use Satellite Remote Sensing to Study Active Volcanism? ......................................517 20.4 Remote Sensing of Volcano Deformation ............................................................................518