The Development of a Low-Cost, Near Infrared, High-Temperature Thermal Imaging System and Its Application to the Retrieval of Accurate Lava Lake Temperatures at Masaya Volcano, Nicaragua

Near infrared thermal cameras can provide useful low-cost imaging systems for high temperature applications, as an alternative to ubiquitous mid-/long-wavelength infrared systems. Here, we present a new Raspberry Pi-based near infrared thermal camera for use at temperatures of ≈>500 °C. We discuss in detail the building of the optical system, calibration using a Sakuma-Hattori model and quantification of uncertainties in remote temperature retrievals. We then present results from the deployment of the system on Masaya Volcano, Nicaragua, where the active lava lake was imaged. Temperatures reached a maximum of 1104 ± 14 °C and the lake radiative power output was found to range between 30 and 45 MW. To the best of our knowledge, this is the first published ground-based data on the thermal characteristics of this relatively nascent lava lake, which became visible in late 2015.

[1]  Gang Li,et al.  The HITRAN 2008 molecular spectroscopic database , 2005 .

[2]  Yoshitsugu Furukawa,et al.  Infrared thermography of the fumarole area in the active crater of the Aso volcano, Japan, using a consumer digital camera , 2010 .

[3]  Jon Raffe Willmott,et al.  A Low-Cost Smartphone Sensor-Based UV Camera for Volcanic SO2 Emission Measurements , 2017, Remote. Sens..

[4]  C. Oppenheimer,et al.  Lava lake surface characterization by thermal imaging: Erta 'Ale volcano (Ethiopia) , 2008 .

[5]  Clive Oppenheimer,et al.  Volcano surveillance using infrared cameras , 2011 .

[6]  H. Pinkerton,et al.  Factors affecting the accuracy of thermal imaging cameras in volcanology , 2006 .

[7]  T. Hashimoto,et al.  Volcanic plume measurements using a UAV for the 2014 Mt. Ontake eruption , 2016, Earth, Planets and Space.

[8]  C. Del Negro,et al.  Thermal insights into the dynamics of Nyiragongo lava lake from ground and satellite measurements , 2013 .

[9]  John Cipar,et al.  Temperature and Power Output of the Lava Lake in Halema'uma'u Crater, Hawaii, Using a Space-Based Hyperspectral Imager , 2012, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing.

[10]  Rosaly M. C. Lopes,et al.  Temperatures, thermal structure, and behavior of eruptions at Kilauea and Erta Ale volcanoes using a consumer digital camcorder , 2015 .

[11]  Maurizio Ripepe,et al.  Coupled thermal oscillations in explosive activity at different craters of Stromboli volcano , 2005 .

[12]  Cheng-Horng Lin,et al.  Preliminary Study of UAS Equipped with Thermal Camera for Volcanic Geothermal Monitoring in Taiwan , 2017, Sensors.

[13]  A. McGonigle,et al.  Low-cost 3D printed 1  nm resolution smartphone sensor-based spectrometer: instrument design and application in ultraviolet spectroscopy. , 2017, Optics letters.

[14]  Brandon M. Lane,et al.  Uncertainty of temperature measurements by infrared thermography for metal cutting applications , 2013 .

[15]  Clive Oppenheimer,et al.  Mass flux measurements at active lava lakes: Implications for magma recycling , 1999 .

[16]  D. Rothery,et al.  Volcano monitoring using short wavelength infrared data from satellites , 1988 .

[17]  R.W. Schafer,et al.  Demosaicking: color filter array interpolation , 2005, IEEE Signal Processing Magazine.

[18]  K. Voss,et al.  Effects of point-spread function on calibration and radiometric accuracy of CCD camera. , 2004, Applied optics.

[19]  Laurence S. Rothman,et al.  HITRAN Application Programming Interface (HAPI): A comprehensive approach to working with spectroscopic data , 2016 .

[20]  Michael James,et al.  Surface temperature measurements of active lava flows on Kilauea volcano, Hawai′i , 2002 .

[21]  C. Oppenheimer,et al.  Correlation of cycles in Lava Lake motion and degassing at Erebus Volcano, Antarctica , 2014 .

[22]  F. Guern,et al.  Erta'ale lava lake: heat and gas transfer to the atmosphere , 1979 .

[23]  C. Oppenheimer,et al.  Ground-based thermal imaging of lava lakes at Erebus volcano, Antarctica , 2008 .

[24]  Simon Baker,et al.  Lucas-Kanade 20 Years On: A Unifying Framework , 2004, International Journal of Computer Vision.

[25]  B. Lane,et al.  Calibration and Measurement Procedures for a High Magnification Thermal Camera , 2016 .

[26]  C. Gueymard.  Parameterized transmittance model for direct beam and circumsolar spectral irradiance , 2001 .

[27]  Rosaly M. C. Lopes,et al.  Eruptive behavior of the Marum/Mbwelesu lava lake, Vanuatu and comparisons with lava lakes on Earth and Io , 2016 .

[28]  A. McGonigle,et al.  Unmanned aerial vehicle measurements of volcanic carbon dioxide fluxes , 2008 .

[29]  Denis Pliutau,et al.  Bytran - |- spectral calculations for portable devices using the HITRAN database , 2017, Earth Science Informatics.

[30]  Lopaka Lee,et al.  Continuous monitoring of Hawaiian volcanoes with thermal cameras , 2014, Journal of Applied Volcanology.

[31]  A. McGonigle,et al.  Sulfur, heat, and magma budget of Erta ‘Ale lava lake, Ethiopia , 2004 .

[32]  F. Guern.  Mechanism of energy transfer in the lava lake of Niragongo (Zaire), 1959–1977 , 1987 .

[33]  Benjamin S. White,et al.  Ultraviolet Imaging with Low Cost Smartphone Sensors: Development and Application of a Raspberry Pi-Based UV Camera , 2016, Sensors.

[34]  M. Patrick,et al.  A multipurpose camera system for monitoring Kīlauea Volcano, Hawai'i , 2015 .

[35]  R. Andrews,et al.  Bulletin of the Global Volcanism Network , 2014 .

[36]  C. Oppenheimer,et al.  Thermal imaging of an active lava lake: Erta 'Ale volcano, Ethiopia , 2002 .

[37]  D. Coppola,et al.  Tracking Formation of a Lava Lake From Ground and Space: Masaya Volcano (Nicaragua), 2014–2017 , 2018 .

[38]  E. R. Polovtseva,et al.  The HITRAN2012 molecular spectroscopic database , 2013 .

[39]  Thomas Staudacher,et al.  Field thermal monitoring during the August 2003 eruption at Piton de la Fournaise (La Réunion) , 2007 .

[40]  Lindsay Mcclelland.  Report on Masaya (Nicaragua) , 1991 .

[41]  Maurizio Ripepe,et al.  High-Frame Rate Thermal Imagery of Strombolian Explosions: Implications for Explosive and Infrasonic Source Dynamics , 2012 .

[42]  Mike Burton,et al.  Effects of a volcanic plume on thermal imaging data , 2006 .

[43]  Peter Saunders,et al.  Physical basis of interpolation equations for radiation thermometry , 2003 .

[44]  S. Amici,et al.  VOLCANIC ENVIRONMENTS MONITORING BY DRONES MUD VOLCANO CASE STUDY , 2013 .