A multi-frequency radar sounder for lava tubes detection on the Moon: Design, performance assessment and simulations

Carrer, Leonardo; Gerekos, Christopher; Bruzzone, Lorenzo

doi:10.1016/j.pss.2018.01.011

Cited by 24 publications

(12 citation statements)

References 27 publications

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“…Second, beside the proposed/existing methods to discover 460 terrestrial/extra-terrestrial lava tunes, such gravitation data sets (Chappaz et al, 2017), ground penetrating radar (Kaku et al, 2017), morphological analyses and spotting of skylight (Cushing et al, 2007;Whittaker, 2012), we proved InSAR survey is an effective tool to detect lava tube networks. Considering proposed planetary InSAR missions (Carrer et al, 2018;Rosen et al, 2001;Ghail et al, 2016;Kim et al, 2015), it has the potential to be applied to lava tubes on the planetary surface.…”

Section: Discussionmentioning

confidence: 99%

Quaternary lava tubes distribution in Jeju Island and their potential deformation risks

Kim

Lin

Oh³

2020

Preprint

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Abstract. Jeju Island, located in the southern sea of the Korean Peninsula, is a volcanic island created by the tertiary and quaternary volcanic eruptions. A group of lava tubes formed between quaternary lava flows constitutes one of the most predominant geological contexts owing to its unique and complex network, for which a total of 178 lava tubes is estimated. As a significant portion of lava caves have not been discovered, the threat caused by lava cave collapse has become one of the major concerns in connection with the recent infrastructure construction in Jeju Island. Considering the risk potential, the overall distribution and collapsing risk of the Jeju lava tube network were investigated in this study. Through spatial analysis, we firstly found that the lava tubes distribution is not correlated with specific geological units. Secondly, the risk of collapse is high especially when there are ongoing artificial constructions around the undisclosed lava tube network. We therefore introduced Interferometric Synthetic Aperture Radar (InSAR) techniques to measure the deformation of the ground surface where lava tube networks distributed underground. InSAR results and the proposed machine learning applications identified that the populations of ground deformations was up to 1–2 mm/year and was inferred to be caused by the instability of the shallow lava cavity. Given that underground cavities could pose serious risks, a detailed physical exploration and threat assessment of potential cave groups is required before intensive anthropogenic construction is developed.

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Section: Discussionmentioning

confidence: 99%

Quaternary lava tubes distribution in Jeju Island and their potential deformation risks

Kim

Lin

Oh³

2020

Preprint

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“…In this regard, several new specific satellite mission approaches have been recently proposed: ground penetrating radar from orbiters (Sood et al, 2016;Carrer et al, 2018) small satellites arrays for multi-frequency radar sounding (Carrer et al, 2019), and the very promising use of passive sounding through radio emissions from Sun and Jupiter (Romero-Wolf et al, 2020). Also the deployment of surface rover missions dedicated to subsurface analysis, with specific geophysical instruments, could provide definitive proofs of the existence of these voids and information on their subsurface development (Caroll et al, 2015).…”

Section: Future Space Missions For Lava Tube Detection and Explorationmentioning

confidence: 99%

Lava tubes on Earth, Moon and Mars: A review on their size and morphology revealed by comparative planetology

Sauro

Pozzobon

Massironi

et al. 2020

Earth-Science Reviews

105

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“…We expect that the application of this study is not limited to assessing the risks provoked by lava tube instability but is of potential use in identifying lava tube development, which has become of significant interest in the planetary habitat environments. As the planetary lava tubes of the Moon [26], Mars [27], and Io [28] are proven or proposed, the method has huge potential combined with proposed planetary InSAR missions [29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

The Survey of Lava Tube Distribution in Jeju Island by Multi-Source Data Fusion

Kim

Lin

2022

Remote Sensing

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Lava tubes, a major geomorphic element over volcanic terrain, have recently been highlighted as testbeds of the habitable environments and natural threats to unpredictable collapse. In our case study, we detected and monitored the risk of lava tube collapse on Jeju, an island off the Korean peninsula’s southern tip with more than 200 lava tubes, by conducting Interferometric Synthetic Aperture Radar (InSAR) time series analysis and a synthesized analysis of its outputs fused with spatial clues. We identified deformations up to 10 mm/year over InSAR Persistent Scatterers (PSs) obtained with Sentinel-1 time series processing in 3-year periods along with a specific geological unit. Using machine learning algorithms trained on time series deformations of samples along with clues from the spatial background, we classified candidates of potential lava tube networks primarily over coastal lava flows. What we detected in our analyses was validated via comparison with geophysical and ground surveys. Given that cavities in the lava tubes could pose serious risks, a detailed physical exploration and threat assessment of potential cave groups are required before the planned intensive construction of infrastructure on Jeju Island. We also recommend using the approach established in our study to detect undiscovered potential risks of collapse in the cavities, especially over lava tube networks, and to explore lava tubes on planetary surfaces using proposed terrestrial and planetary InSAR sensors.

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A multi-frequency radar sounder for lava tubes detection on the Moon: Design, performance assessment and simulations

Cited by 24 publications

References 27 publications

Quaternary lava tubes distribution in Jeju Island and their potential deformation risks

Quaternary lava tubes distribution in Jeju Island and their potential deformation risks

Lava tubes on Earth, Moon and Mars: A review on their size and morphology revealed by comparative planetology

The Survey of Lava Tube Distribution in Jeju Island by Multi-Source Data Fusion

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