Multi-instrument remote and in situ observations of the Erebus Volcano (Antarctica) lava lake in 2005: A comparison with the Pele lava lake on the jovian moon Io

Davies, A. G.; Calkins, Julie; Scharenbroich, Lucas; Vaughan, R. G.; Wright, Robert J.; Kyle, Philip R.; Castaño, Rebecca; Chien, Steve; Tran, Daniel

doi:10.1016/j.jvolgeores.2008.02.010

Cited by 47 publications

(45 citation statements)

References 68 publications

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“…Considering Wien's law, it is also possible to detect and quantify volcanic thermal anomalies even if they do not cover an entire satellite pixel. The detected thermal anomalies are usually quantified by their temperature, area, volcanic radiant power (VRP), or time averaged lava discharge rate (TADR) [14][15][16][17][18][19][20][21][22][23][24]. The uncertainty of single measured spectral radiances depends on numerous factors such as different sensor's point spread function and spectral response functions, different time of overpass, orbit geometry, and spatial resolution [25,26].…”

Section: Thermal Observations Of Active Volcanoesmentioning

confidence: 99%

Satellite and Ground Based Thermal Observation of the 2014 Effusive Eruption at Stromboli Volcano

2015

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Abstract:As specifically designed platforms are still unavailable at this point in time, lava flows are usually monitored remotely with the use of meteorological satellites. Generally, meteorological satellites have a low spatial resolution, which leads to uncertain results. This paper presents the first long term satellite monitoring of active lava flows on Stromboli volcano (August-November 2014) at high spatial resolution (160 m) and relatively high temporal resolution (~3 days). These data were retrieved by the small satellite Technology Experiment Carrier-1 (TET-1), which was developed and built by the German Aerospace Center (DLR). The satellite instrument is dedicated to high temperature event monitoring. The satellite observations were accompanied by field observations conducted by thermal cameras. These provided short time lava flow dynamics and validation for satellite data. TET-1 retrieved 27 datasets over Stromboli during its effusive activity. Using the radiant density approach, TET-1 data were used to calibrate the MODVOLC data and estimate the time averaged lava discharge rate. With a mean output rate of 0.87 m 3 /s during the three-month-long eruption, we estimate the total erupted volume to be 7.4ˆ10 6 m 3 .

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Section: Thermal Observations Of Active Volcanoesmentioning

confidence: 99%

Satellite and Ground Based Thermal Observation of the 2014 Effusive Eruption at Stromboli Volcano

2015

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“…Indeed, the sensor's SWIR bands have been used in various enlightening volcanic studies (e.g. Pieri and Abrams 2004, Lombardo and Buongiorno 2006, Carter et al 2008, Davies et al 2008, Rose and Ramsey 2009 and it is unfortunate for the field of volcanological remote sensing that they no longer function. However, despite these unprecedented advantages, in relation to ASTER's SWIR bands some weaknesses for certain applications (as determined from the findings presented here) include: (1) its temporal resolution, which reduces its utility both in the long-term monitoring of, and in the immediate response to, volcanic phenomena, and (2) the pattern of its gain settings, in terms of their alternating regime and their inability to always provide unsaturated data.…”

Section: Assessment Of Astermentioning

confidence: 99%

“…In a special issue of Remote Sensing of Environment, which focused purely on the scientific results of ASTER, of the 15 papers, only one (Pieri and Abrams 2005) was concerned with volcanic observations, and even this made no use of ASTER's SWIR observational capabilities. Pieri and Abrams (2004) introduce a number of possible volcanic applications and present examples of ASTER SWIR imagery, while Lombardo and Buongiorno (2006) and Davies et al (2008) make comparisons between quantitative observations from the ASTER SWIR bands and, respectively, those from comparable bands of the Multispectral Infrared and Visible Imaging Spectrometer (MIVIS) airborne instrument and the EOS Hyperion sensor. Some studies have also attempted to retrieve volcanic surface temperatures using ASTER SWIR data (e.g.…”

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confidence: 99%

Evaluation of SWIR-based methods for quantifying active volcano radiant emissions using NASA EOS-ASTER data

Wooster

2011

Geomatics, Natural Hazards and Risk

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Analysis of thermally emissive volcanic features using satellite infrared remote sensing has been conducted over recent decades, primarily using shortwave and thermal infrared (SWIR; TIR) radiance data. The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), mounted on the Earth Observation System (EOS) Terra satellite, offers an advance on earlier instruments, having more bands covering the SWIR atmospheric window and offering a wider dynamic range. This paper compares methods used to analyse ASTER SWIR imagery of active volcanoes, using both simulated cases and actual ASTER imagery of Lascar Volcano, and focuses on radiative power estimates. Those based on the Oppenheimer approach are found to be most reliable for simulated surfaces, with the Lombardo and Buongiorno and Dozier retrievals having larger uncertainties in most cases. However, the Dozier Method results in the highest proportion of successful retrievals, the reliability of which is influenced by factors including band combination, gain setting and saturation. The radiative power metric is shown as a more reliable measure than sub-pixel characterisations of hotspot temperature and area, as retrieved by these methods. We conclude with an assessment of ASTER in terms of its utility for providing quantitative observations of active volcanic surfaces.

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“…Considering Wien's law it is possible to detect thermal anomalies that usually cover only a small part of a single sensors' pixel area. The following example shows the differences in MIR/TIR sensitivities: a lava lake at 800 K covers 10% of the pixel area and the background temperature equals 300 K; an observation at 4 µm results in a brightness temperature of 530 K and an observation at 11 µm results in only 390 K. This difference in sensitivities of different parts of spectrum on different temperatures resulted in different applications of remote sensing in volcanology (Coppola et al, 2009;Davies et al, 2008;Dehn et al, 2000;Harris et al, 2007Harris et al, , 1995Lombardo et al, 2006;Oppenheimer and Francis, 1997;Pergola et al, 2004;Rothery et al, 1988;Wright et al, 2002;Wright and Pilger, 2008). The detected thermal anomalies are usually quantified by their temperature, area, radiant power (RP), or effusion rate.…”

Section: Introductionmentioning

confidence: 99%

Lava Flow Monitoring Using TET-1 Satellite

Zakšek

Lorenz

Hort

2015

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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ABSTRACT:Lava flow monitoring using satellites provides information on the temporal evolution of volcanic activity. It is usually done using metrological satellites because of the lack of more suitable satellites. The advantage of many meteorological satellites is the availability of appropriate spectral bands. For lava flow monitoring are most useful data in spectrum 3-4 µm (MIR) and 9-12 µm (TIR). However, the spatial resolution of meteorological satellites is usually very coarse causing uncertainties in results. Here we present the first long term satellite monitoring of an active lava flow on Stromboli volcano (end of August till the beginning of November 2014) in high spatial resolution (160 m) and relatively high temporal resolution (~3 days). We analysed data from a test satellite TET-1, which is a test satellite developed at DLR. It carries an instrument dedicated to monitoring of high temperature events. MIR band observations are often saturated at the meteorological satellites. This is not the case of TET-1, although their spatial resolution is very fine for a thermal sensor. TET-1 retrieved 27 datasets over Stromboli during its effusive activity. Some of images were cloudy situations, but most of them were very useful for monitoring of the lava flow radiant power.

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Multi-instrument remote and in situ observations of the Erebus Volcano (Antarctica) lava lake in 2005: A comparison with the Pele lava lake on the jovian moon Io

Cited by 47 publications

References 68 publications

Satellite and Ground Based Thermal Observation of the 2014 Effusive Eruption at Stromboli Volcano

Satellite and Ground Based Thermal Observation of the 2014 Effusive Eruption at Stromboli Volcano

Evaluation of SWIR-based methods for quantifying active volcano radiant emissions using NASA EOS-ASTER data

Lava Flow Monitoring Using TET-1 Satellite

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