Heat and SO2 Emission Rates at Active Volcanoes - The Case Study of Masaya, Nicaragua

separate from the melt and escape either directly from the main conduits, or indirectly by leaking through fumaroles, fractures, and faults, or by dissolving within crater lakes and hot spring waters, resulting in variations in their temperature and chemical composition.At the surface, these phenomena are also associated with radiative heat fluxes, which can be detected by infrared thermal detectors.The application of thermal imaging to volcanology was largely performed using satellite surveys (e.g.Harris et al., 2011;Vicari et al., 2008), but in the last decade there has been increasing application of compact (hand-held) thermal imagers used from the air or ground (Spampinato et al., 2011).www.intechopen.com