Surface roughness characterization of the 2014–2015 Holuhraun lava flow-field in Iceland: implications for facies mapping and remote sensing

Voigt, Joana; Hamilton, C. W.; Steinbrügge, Gregor; Scheidt, S. P.

doi:10.1007/s00445-021-01499-4

Cited by 10 publications

(9 citation statements)

References 80 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To use surface roughness as an age proxy would require one to have a measure of the initial roughness. Future missions with highly resolved images and topography data might be useful in identifying features that could be indicative of flow texture, such as blocky levees for aa flows (Stofan et al 2001) or inflation features on pahoehoe flows (Voigt et al 2021). For mostly featureless plains, this approach does not seem promising.…”

Section: General Radar Propertiesmentioning

confidence: 99%

Resurfacing History and Volcanic Activity of Venus

et al. 2023

View full text Add to dashboard Cite

Photogeologic principles can be used to suggest possible sequences of events that result in the present planetary surface. The most common method of evaluating the absolute age of a planetary surface remotely is to count the number of impact craters that have occurred after the surface formed, with the assumption that the craters occur in a spatially random fashion over time. Using additional assumptions, craters that have been partially modified by later geologic activity can be used to assess the time frames for an interpreted sequence of events. The total number of craters on Venus is low and the spatial distribution taken by itself is nearly indistinguishable from random. The overall implication is that the Venusian surface is much closer to Earth in its youthfulness than the other, smaller inner solar system bodies. There are differing interpretations of the extent to which volcanism and tectonics have modified the craters and of the regional and global sequences of geologic events. Consequently, a spectrum of global resurfacing views has emerged. These range from a planet that has evolved to have limited current volcanism and tectonics concentrated in a few zones to a planet with Earth-like levels of activity occurring everywhere at similar rates but in different ways. Analyses of the geologic record have provided observations that are challenging to reconcile with either of the endmember views. The interpretation of a global evolution with time in the nature of geologic activity relies on assumptions that have been challenged, but there are other observations of areally extensive short-lived features such as canali that are challenging to reconcile with a view of different regions evolving independently. Future data, especially high-resolution imaging and topography, can provide the details to resolve some of the issues. These different global-evolution viewpoints must tie to assessments of present-day volcanic and tectonic activity levels that can be made with the data from upcoming missions.

show abstract

Section: General Radar Propertiesmentioning

confidence: 99%

Resurfacing History and Volcanic Activity of Venus

et al. 2023

View full text Add to dashboard Cite

show abstract

“…After raw data calibration and processing using Riegl RiProcess and RiPrecision software modules (RIEGL Laser Measurement Systems GmbH, Austria), the point clouds were converted into DEMs using ESRI ArcGIS. The maximum resolution set for the DEMs in this work was set to 5 cm/pixel, equal to the maximum resolution of the stereo-derived DTMs used by Voigt, Hamilton, Steinbrügge, and Scheidt (2021) to analyze the topographic roughness of the Holuhraun lava facies. The high precision and accuracy of the kinematic LiDAR system (see Kukko et al (2020) for details) and high spatial resolution of the point clouds will reduce uncertainties in our roughness statistic calculations.…”

Section: Topographic Datamentioning

confidence: 99%

“…However, ground‐truthing revealed that the facies are composed of a mixture of lava flow types. Lava flows are most commonly subdivided into pāhoehoe, ʻaʻā, and block lava types (MacDonald, 1953); however, there exist a broader range of “transitional” lava types formed through episodic or continuous fragmentation of solidified lava crusts, such as rubbly pāhoehoe, which are typically associated with fissure‐fed eruptions (e.g., Hamilton, 2019; Harris et al., 2017; Kilburn, 2000; Rowland & Walker, 1990; Solana et al., 2004; Thordarson & Larsen, 2007; Voigt, Hamilton, Scheidt, et al., 2021; Voigt, Hamilton, Steinbrügge, & Scheidt, 2021). These transitional lava types commonly co‐occur at a fine scale (on the order of meters or less), which makes mapping the spatial distribution of these materials challenging at a reasonable digitizing scale (e.g., 1:800).…”

Section: Introductionmentioning

confidence: 99%

“…Previous work by Voigt, Hamilton, Steinbrügge, and Scheidt (2021) discussed the challenges in distinguishing between lava facies using 0.05–0.5 m/pixel DEMs generated using stereo‐photogrammetry. Their approach involved quantifying the surface roughness of the lava facies using root‐mean‐square (RMS) slope and Hurst exponent ( H ) to determine the statistical separability of the units.…”

Section: Introductionmentioning

confidence: 99%

“…Surface roughness is defined as a measure of the variation in topography at scales of a few meters or less, and has been quantified using a variety of field and remote sensing techniques, including 1‐D profile measurements (e.g., Campbell & Shepard, 1996; Shepard et al., 2001), Synthetic Aperture Radar (SAR) (e.g., Campbell & Shepard, 1996; Neish et al., 2017; Tolometti et al., 2020), and high‐resolution topography data (Fan et al., 2018; Morris et al., 2008; Rodriguez Sanchez‐Vahamonde & Neish, 2021; Voigt, Hamilton, Steinbrügge, et al., 2021; Whelley et al., 2017; Zanetti et al., 2018). We are interested in investigating surface roughness in this work because it can be related to eruption and lava emplacement mechanisms (Duraiswami et al., 2008, 2014; Griffiths & Fink, 1992; Guilbaud et al., 2005; Harris et al., 2017; Kilburn, 2000; Rowland & Walker, 1990; Voigt, Hamilton, Steinbrügge, & Scheidt, 2021) and has important implications for remote sensing studies of planetary surfaces, such as volcanic terrains on Venus and Mars.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Differentiating Fissure‐Fed Lava Flow Types and Facies Using RADAR and LiDAR: An Example From the 2014–2015 Holuhraun Lava Flow‐Field

et al. 2022

View full text Add to dashboard Cite

Distinguishing between lava types and facies using remote sensing data is important for interpreting the emplacement history of lava flow‐fields on Earth and other planetary bodies. Lava facies typically include a mixture of lava types and record the collective emplacement history of material preserved at a particular location. We seek to determine if lava facies in the 2014–2015 Holuhraun lava flow‐field are discernible using radar roughness analysis. Furthermore, we also seek to distinguish between lava types using high resolution Light Detection and Ranging (LiDAR) data. We extracted circular polarization ratios (CPR) from the Uninhabited Aerial Vehicle Synthetic Aperture Radar and cross‐polarization (VH/VV) data from the Sentinel‐1 satellite to analyze the surface roughness of three previously mapped lava facies: rubbly, spiny, and undifferentiated rubbly–spiny. Using the Kruskal‐Wallis test, we reveal that all but one pair of the facies are statistically separable. However, the populations overlap by 88%–89% for CPR and 64%–67% for VH/VV. Therefore, owing to large sample populations (n > 2 × 105), slight differences in radar data may be used to probabilistically infer the presence of a particular facies, but not directly map them. We also calculated the root‐mean‐square slope and Hurst exponents of five different lava types using LiDAR topography (5 cm/pixel). Our results show minute differences between most of the lava types, with the exception of the rubbly pāhoehoe, which is discernible at 1σ. In brief, the presence of “transitional” lava types (e.g., rubbly pāhoehoe) within fissure‐fed lava flow‐fields complicates remote sensing‐based mapping.

show abstract

Degradation of the 2014–2015 Holuhraun vent-proximal edifice in Iceland

Sutton,

Richardson,

Whelley

et al. 2024

Bull Volcanol

View full text Add to dashboard Cite

The earliest stages of volcanic vent degradation are rarely measured, leaving a gap in the knowledge that informs landform degradation models of cinder cones and other monogenetic vent structures. We documented the initial degradation of a 500-m-long spatter rampart at the primary vent of the 2014–2015 Holuhraun eruption in northern Iceland with high-resolution topographic change maps derived from terrestrial laser scanning (TLS) and photogrammetric surveys using an unoccupied aircraft system (UAS). Topographic differencing shows a total negative volume change of 42,637 m3, and a total positive volume change (basal deposition) of 10,304 m3 (primarily as deposition at the base of steeply sloping surfaces). Two distinct styles of volume changes were observed on the interior and exterior of the spatter rampart. Material on the interior of the vent was removed from oversteepened slopes by discrete rockfalls, while diffusive processes were qualitatively evident on the exterior slopes. We propose a novel conceptual landform evolution model for spatter ramparts that combines rockfall processes on the interior walls, diffusive gravitational sliding on the exterior slopes, and incorporates cooling contraction and compaction over the entire edifice to describe the observed modes of topographic change during the onset of degradation. Potential hazards at fresh spatter ramparts are rockfalls at high slope areas of the vent interior walls where contacts between spatter clasts are prone to weakening by fumarolic activity, weathering, and settling. To capture such hazards, our data suggest a cadence for monitoring changes yearly for the first few years post-eruption, and at longer intervals thereafter.

show abstract

Surface roughness characterization of the 2014–2015 Holuhraun lava flow-field in Iceland: implications for facies mapping and remote sensing

Cited by 10 publications

References 80 publications

Resurfacing History and Volcanic Activity of Venus

Resurfacing History and Volcanic Activity of Venus

Differentiating Fissure‐Fed Lava Flow Types and Facies Using RADAR and LiDAR: An Example From the 2014–2015 Holuhraun Lava Flow‐Field

Degradation of the 2014–2015 Holuhraun vent-proximal edifice in Iceland

Contact Info

Product

Resources

About