Detailed Mapping of Lava and Ash Deposits at Indonesian Volcanoes by Means of VHR PlanetScope Change Detection

Rösch, M.; Plank, Simon

doi:10.3390/rs14051168

Cited by 8 publications

(6 citation statements)

References 69 publications

(196 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Tsunami waves, generated by the flank collapse, destroyed most of the island, causing more than 400 fatalities. Eruption confirmed the dangerousness of the Krakatau volcano for the neighbors' densely populated coastal regions of the Java and Sumatra islands (e.g., [51]).…”

Section: Krakatau (Indonesia) September 2018 Eruptionmentioning

confidence: 84%

First Implementation of a Normalized Hotspot Index on Himawari-8 and GOES-R Data for the Active Volcanoes Monitoring: Results and Future Developments

et al. 2022

View full text Add to dashboard Cite

The Advanced Himawari Imager (AHI) and Advanced Baseline Imager (ABI), respectively aboard Himawari-8 and GOES-R geostationary satellites, are two important instruments for the near-real time monitoring of active volcanoes in the Eastern Asia/Western Pacific region and the Pacific Ring of Fire. In this work, we use for the first time AHI and ABI data, at 10 min temporal resolution, to assess the behavior of a Normalized Hotspot Index (NHI) in presence of active lava flows/lakes, at Krakatau (Indonesia), Ambrym (Vanuatu) and Kilauea (HI, USA) volcanoes. Results show that the index, which is used operationally to map hot targets through the Multispectral Instrument (MSI) and the Operational Land Imager (OLI), is sensitive to high-temperature features even when short-wave infrared (SWIR) data at 2 km spatial resolution are analyzed. On the other hand, thresholds should be tailored to those data to better discriminate thermal anomalies from the background in daylight conditions. In this context, the multi-temporal analysis of NHI may enable an efficient identification of high-temperature targets without using fixed thresholds. This approach could be exported to SWIR data from the Flexible Combined Imager (FCI) instrument aboard the next Meteosat Third Generation (MTG) satellites.

show abstract

Section: Krakatau (Indonesia) September 2018 Eruptionmentioning

confidence: 84%

First Implementation of a Normalized Hotspot Index on Himawari-8 and GOES-R Data for the Active Volcanoes Monitoring: Results and Future Developments

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The work of Rosch and Plank [37] concerned the mapping of lava and ash deposits using PlanetScope optical images. This study introduced an object-oriented classification for mapping lava flows in vegetated and unvegetated areas during several eruptive phases of three Indonesian volcanoes.…”

Section: Volcanoesmentioning

confidence: 99%

Remote Sensing Analysis of Geologic Hazards

et al. 2022

View full text Add to dashboard Cite

show abstract

“…High (HR) and very high-resolution (VHR) optical satellite imagery are ideally suited for the detailed analysis of, e.g., lava flows and pyroclastic density currents 26 . Optical stereo data enables the generation of an up to date digital surface model (DSM) of the lava flow topography.…”

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

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Detailed Mapping of Lava and Ash Deposits at Indonesian Volcanoes by Means of VHR PlanetScope Change Detection

Cited by 8 publications

References 69 publications

First Implementation of a Normalized Hotspot Index on Himawari-8 and GOES-R Data for the Active Volcanoes Monitoring: Results and Future Developments

First Implementation of a Normalized Hotspot Index on Himawari-8 and GOES-R Data for the Active Volcanoes Monitoring: Results and Future Developments

Remote Sensing Analysis of Geologic Hazards

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

Contact Info

Product

Resources

About