Mapping and characterizing the Kīlauea (Hawaiʻi) lava lake through Sentinel-2 MSI and Landsat-8 OLI observations of December 2020–February 2021

Marchese, Francesco; Genzano, Nicola; Nolde, Michael; Falconieri, Alfredo; Pergola, Nicola; Plank, Simon

doi:10.1016/j.envsoft.2021.105273

Cited by 9 publications

(6 citation statements)

References 43 publications

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“…Rep. of Congo, Africa) and Kilauea (Hawaii, USA) in the presence of active lava lakes. This was mainly because of the different saturation radiances of the SWIR channels [14,17]. On the other hand, higher TSR2 than TSR1 values were only recorded during the lava effusion, and were observed by satellite in the waning phase.…”

Section: Resultsmentioning

confidence: 96%

“…Thermal anomalies may be analyzed using a different Distance Buffer (DBradius of a circular area centred over the main craters), after selecting the volcano and the period of interest [14]. Hotspot maps, plots of hot pixel numbers, total SWIR radiance, and total hotspot areas provide information about volcanic thermal features and relative space-time variations (e.g., [16,17]).…”

Section: Nhi Toolmentioning

confidence: 99%

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Investigating Phases of Thermal Unrest at Ambrym (Vanuatu) Volcano through the Normalized Hot Spot Indices Tool and the Integration with the MIROVA System

et al. 2022

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Ambrym is an active volcanic island, located in the Vanuatu archipelago, consisting of a 12 km-wide summit caldera. This open vent volcano is characterized by an almost persistent degassing activity which occurs in the Benbow and Marum craters, which were also the site of recent lava lakes. On 15 December 2018, about three years after an intense lava effusion, the first recorded since 1989, a small-scale intra-caldera fissure eruption occurred. On 16 December, the eruption stopped, and the lava lakes at the Benbow and Marum craters were drained. In this work, we investigated the thermal activity of the Ambrym volcano, before, during, and after the 15 December 2018 eruption, using daytime Sentinel-2 (S2) Multispectral Instruments (MSI) and Landsat-8 (L8) Operational Land Imager (OLI) data, at a mid-high spatial resolution. The results were integrated with Moderate Resolution Imaging Spectroradiometer (MODIS) observations. Outputs of the Normalized Hotspot Indices (NHI) tool, retrieved from S2-MSI and L8-OLI data, show that the thermal activity at the Ambrym craters increased about three weeks before the 15 December 2018 lava effusion. This information is consistent with the estimates of volcanic radiative power (VRP), which were performed by the Middle Infrared Observation of Volcanic Activity (MIROVA) system, by analyzing the nighttime MODIS data. The latter revealed a significant increase of VRP, with values above 700 MW at the end of the October–November 2018 period. Moreover, the drastic reduction of thermal emissions at the craters, marked by the NHI tool since the day of the fissure eruption, is consistent with the drop in the lava lake level that was independently suggested in a previous study. These results demonstrate that the S2-MSI and L8-OLI time series, combined with infrared MODIS observations, may contribute to detecting increasing trends in lava lake activity, which may precede effusive eruptions at the open vent volcanoes. This study addresses some challenging scenarios regarding the definition of possible threshold levels (e.g., in terms of VRP and total Short Wave Infrared radiance) from the NHI and MIROVA datasets, which could require special attention from local authorities in terms of the occurrence of possible future eruptions.

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Section: Resultsmentioning

confidence: 96%

Section: Nhi Toolmentioning

confidence: 99%

Investigating Phases of Thermal Unrest at Ambrym (Vanuatu) Volcano through the Normalized Hot Spot Indices Tool and the Integration with the MIROVA System

et al. 2022

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“…The chosen volcanic targets (Table 4 and Figure 11) show thermal emissions ranging from about 1 MW to more than 1 GW and embed a variety of volcanic activity that includes: silicic lava domes (Shiveluch, Sabancaya, Nevados de Chillan), andesitic lava domes (Bagana), lava lakes (Nyiragongo), open vent (Etna, Manam), and mafic lava flow (Kilauea, Pacaya). Some of these volcanoes have experienced important eruptive phases in the considered period (see Supplementary Material), such as Etna [99,100], Nyiragongo volcano [101], and Kilauea [102]. However, in addition to their recent activity, these volcanoes have been chosen because they are representative of a wide range of environmental and meteorological conditions spanning from ice-covered high-latitude volcanoes (e.g., Sheveluch) to tropical islands (e.g., Bagana, Kilauea).…”

Section: Toward Global Volcano Thermal Monitoring Using Viirsmentioning

confidence: 99%

The Transition from MODIS to VIIRS for Global Volcano Thermal Monitoring

Campus

Laiolo

Massimetti

et al. 2022

Sensors

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The Moderate Resolution Imaging Spectroradiometer (MODIS) is one of the most-used sensors for monitoring volcanoes and has been providing time series of Volcanic Radiative Power (VRP) on a global scale for two decades now. In this work, we analyzed the data provided by the Visible Infrared Imaging Radiometer Suite (VIIRS) by using the Middle Infrared Observation of Volcanic Activity (MIROVA) algorithm, originally developed to analyze MODIS data. The resulting VRP is compared with both the MIROVAMODIS data as well as with the Fire Radiative Power (FRP), distributed by the Fire Information for Resource Management System (FIRMS). The analysis on 9 active volcanoes reveals that VIIRS data analyzed with the MIROVA algorithm allows detecting ~60% more alerts than MODIS, due to a greater number of overpasses (+30%) and improved quality of VIIRS radiance data. Furthermore, the comparison with the nighttime FIRMS database indicates greater effectiveness of the MIROVA algorithm in detecting low-intensity (<10 MW) thermal anomalies (up to 90% more alerts than FIRMS). These results confirm the great potential of VIIRS to complement, replace and improve MODIS capabilities for global volcano thermal monitoring, because of the future end of Terra and Aqua Earth-observing satellite mission of National Aeronautics and Space Administration’s (NASA).

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“…Other automated hotspot detection systems such as HOTVOLC 15 and HOTSAT 16 enable volcanic activity analysis in near real-time as they are based on the high temporal resolution data from geostationary satellites (e.g., the Geostationary Operational Environmental Satellite (GOES) and Meteosat). Thermal satellite imagery has been used to investigate a variety of thermal volcanogenic emitting phenomena, such as lava lakes 17 , active lava flows 14 and lava domes 18 .…”

Section: Introductionmentioning

confidence: 99%

Combining thermal, tri-stereo optical and bi-static InSAR satellite imagery for lava volume estimates: the 2021 Cumbre Vieja eruption, La Palma

Plank

Shevchenko

d’Angelo

et al. 2023

Sci Rep

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Determining outline, volume and effusion rate during an effusive volcanic eruption is crucial as it is a major controlling factor of the lava flow lengths, the prospective duration and hence the associated hazards. We present for the first time a multi-sensor thermal-and-topographic satellite data analysis for estimating lava effusion rates and volume. At the 2021 lava field of Cumbre Vieja, La Palma, we combine VIIRS + MODIS thermal data-based effusion rate estimates with DSMs analysis derived from optical tri-stereo Pléiades and TanDEM-X bi-static SAR-data. This multi-sensor-approach allows to overcome limitations of single-methodology-studies and to achieve both, high-frequent observation of the relative short-term effusion rate trends and precise total volume estimates. We find a final subaerial-lava volume of $$212\times {10}^{6}\pm 13\times {10}^{6}\; \text{m}^{3}$$ 212 × 10 6 ± 13 × 10 6 m 3 with a MOR of 28.8 ± 1.4 m3/s. We identify an initially sharp eruption-rate-peak, followed by a gradually decreasing trend, interrupted by two short-lived-peaks in mid/end November. High eruption rate accompanied by weak seismicity was observed during the early stages of the eruption, while during later stage the lava effusion trend coincides with seismicity. This article demonstrates the geophysical monitoring of eruption rate fluctuations, that allows to speculate about changes of an underlying pathway during the 2021 Cumbre Vieja eruption.

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Mapping and characterizing the Kīlauea (Hawaiʻi) lava lake through Sentinel-2 MSI and Landsat-8 OLI observations of December 2020–February 2021

Cited by 9 publications

References 43 publications

Investigating Phases of Thermal Unrest at Ambrym (Vanuatu) Volcano through the Normalized Hot Spot Indices Tool and the Integration with the MIROVA System

Investigating Phases of Thermal Unrest at Ambrym (Vanuatu) Volcano through the Normalized Hot Spot Indices Tool and the Integration with the MIROVA System

The Transition from MODIS to VIIRS for Global Volcano Thermal Monitoring

Combining thermal, tri-stereo optical and bi-static InSAR satellite imagery for lava volume estimates: the 2021 Cumbre Vieja eruption, La Palma

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