Research paperInfrared surveillance of crater lakes using satellite data
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Cited by (43)
Thermal evolution of the Crater Lake of Copahue Volcano with ASTER during the last quiescence period between 2000 and 2012 eruptions
2020, Journal of Volcanology and Geothermal ResearchCitation Excerpt :Thus, thermal and chemical monitoring of ACL makes possible the identification of precursory signals of volcanic activity that can provide information useful for volcanic eruptions forecasting (Rowe et al., 1992a, 1992b; Oppenheimer, 1997a; Varekamp et al., 2001; Dehn et al., 2002; Hernández et al., 2007; Colvin, 2008; Spampinato et al., 2010). Remote sensing has been widely used since the 1980s in order to investigate volcanic systems (Harris, 2013; Pyle et al., 2013) as well as features of ACL such as morphology, watercolor, temperature and heat flux (Oppenheimer, 1993, 1996, 1997a, 1997b; Colvin, 2008; Trunk and Bernard, 2008; Harris, 2013; Jay et al., 2013; Murphy et al., 2018). The observation of ACL with infrared instruments enables us to study low temperature phenomena or anomalies (Flynn et al., 2000), since although the lakes constitute the end of the conduit of an active volcanic system and they maintain the temperatures above ambient values, these do not generally exceed 100 °C.
Evidences of volcanic unrest on high-temperature fumaroles by satellite thermal monitoring: The case of Santa Ana volcano, El Salvador
2017, Journal of Volcanology and Geothermal ResearchSpatial heterogeneity in geothermally-influenced lakes derived from atmospherically corrected Landsat thermal imagery and three-dimensional hydrodynamic modelling
2016, International Journal of Applied Earth Observation and GeoinformationCitation Excerpt :Thus for robust earth surface temperature estimations, atmospheric profile data are required. Satellite thermal imagery has been used for a wide variety of lake applications including: geologic exploration (van der Meer et al., 2014), temperature monitoring of volcanic (Oppenheimer, 1993) and other lakes (Alcântara et al., 2010; Giardino et al., 2001; Lamaro et al., 2013; Sima et al., 2013; Simon et al., 2014); characterising upwelling and circulation (Steissberg et al., 2005a); observing surface current speed/direction (Steissberg et al., 2005b) and near-shore thermal bars (Schott et al., 2001); identification of groundwater discharge areas (Tcherepanov et al., 2005); estimating the influence of lake morphology and clarity on water surface temperature (Becker and Daw, 2005); and validation of physically based 3-D hydrodynamic models (Pahlevan et al., 2012). Remote sensing radiometers measure the lake water ‘skin’ temperature (upper 100 μm) rather than the bulk surface temperature usually measured with in situ sensors.
Temporal variations in fumarole gas chemistry at Poás volcano, Costa Rica
2015, Journal of Volcanology and Geothermal ResearchCitation Excerpt :Poás is an example of a volcano with a dynamic lake-hydrothermal system and lake parameters such as size, level, temperature, and composition are affected by volcanic activity (Brown et al., 1989; Martínez et al., 2000; Mora-Amador et al., 2010; Ramirez et al., 2010; Alpízar et al., 2014). Over the past three decades, monitoring of lake temperature (Oppenheimer, 1993; Vaselli et al., 2003; Trunk and Bernard, 2008), fluid composition (Rowe et al., 1992; Rowe, 1994; Martínez et al., 2000; Vaselli et al., 2003; Zimmer et al., 2004; Martinez, 2008; Hilton et al., 2010), plume chemistry (Pfeffer et al., 2006), and geophysical parameters (Casertano et al., 1987; Brown et al., 1989; Rymer and Brown, 1989) have provided critical insights into constraining processes occurring at Poás. Here, we show that key major gas ratios changed during 2005 to 2006, preceding a period of increased phreatic activity that began in March 2006 and continues to date.
Past, present and future of volcanic lake monitoring
2014, Journal of Volcanology and Geothermal ResearchThermal deconvolution: Accurate retrieval of multispectral infrared emissivity from thermally-mixed volcanic surfaces
2014, Remote Sensing of EnvironmentCitation Excerpt :However, because of the limited spatial and spectral resolution of those data (1 km), the authors did not account for multiple high temperature components nor the surface emissivity. Previous studies have applied the dual band approach to volcanic processes using AVHRR and Landsat Thematic Mapper (TM) sensors to produce a relatively accurate estimation of temperature, radiant flux, and the behavior of volcanic features such as lava flows and fumaroles (Abrams, Glaze, & Sheridan, 1991; Flynn, Mouginis-Mark, & Horton, 1994; Glaze, Francis, & Rothery, 1989; Harris et al., 1998; Oppenheimer, 1993; Oppenheimer, Francis, Rothery, & Carlton, 1993; Oppenheimer & Rothery, 1991; Pieri et al., 1990; Rothery et al., 1988; Vaughan et al., 2010). However, inherent errors such as daytime solar reflected radiance, the presence of steam and gas plumes, precipitate minerals accumulated on the surface, topography relative to the viewing angle, and the width of each spectral channel of the instrument all made accurate thermal deconvolution difficult.