About

Updated: October 2016.

Volcanic Anomalies Monitoring System (VOLCANOMS) is a volcanic thermal anomalies detection system based on the analysis of Land Remote Sensing Satellite (Landsat) TM (Thematic Mapper), ETM+ (Enhanced Thematic Mapper Plus) and OLI (Operational Land Imager) images.

Landsat images technical properties can be accessed from the official website http://landsat.usgs.gov/

Our code is based in the Dual Band Method (Rothery et al 1988), Three Band and Three Components Method (Harris et al 1999a), thermal analysis for Landsat 8 (OLI) images proposed by Blackett (2014) and improvements to Three Band and Three Components Method carried out by Gonzalez et al (2015).

VOLCANOMS release diverse products and data corresponding to:

  1. A set of images corresponding to individual short wave infrared (SWIR) bands (band 5 and 7 for Landsat TM and ETM+, and bands 6 and 7 for Landsat OLI), uncorrected and corrected for atmospheric and solar effects
  2. Combined images in RGB (742 and 754 for ETM+, 753 and 765 for OLI)
  3. A data set that include anomaly area, thermal radiance, thermal effective temperature, heat and mass fluxes for individual images. The first active volcano available is Lascar (northern Chile).

Our first work related to VOLCANOMS correspond to:

Layana S, Aguilera F, Urrutia D, Salazar P (2016) VOLCANOMS, a low cost and automated volcanic monitoring system for Chilean volcanoes based on Landsat ETM+ and OLI satellite images. In: Cities on Volcanoes 9, Puerto Varas, Chile, 20-25 November 2016.

References

Blackett M (2014) Early analysis of Landsat-8 thermal infrared sensor imagery of volcanic activity. Remote Sens 6:2282-2295

González C, Inostroza M, Aguilera F, González R, Viramonte J, Manzies A (2015) Heat and mass flux measurements using Landsat images during 2000-2004 period, Lascar volcano, northern Chile. J Volc Geotherm Res 301:277-292
Harris A, Flynn L, Rothery D, Oppenheimer C, Sherman S (1999) Mass flux measurements at active lava lakes: Implications for magma recycling. J Geophys Res 104:7117-7136
Rothery D, Francis P, Wood C (1988) Volcano monitoring using short wavelength infrared data from satellite. J Geophys Res 93:7993-8008