A review of mass and energy flow through a lava flow system: insights provided from a non-equilibrium perspective

Textural, thermal, and topographic constraints on lava flow system structure: the December 2010 eruption of Piton de la Fournaise

“…The increased viscous drag imposed by the larger wetted perimeter of a braided system will result in decreased flow speed and, consequently, length. This is in accordance with the supply rate rule (Walker et al 1973) and with mass-energy analysis (Tarquini, 2017). Conversely, the transition from braided channels to a single channel will increase the flow speed and length, as demonstrated by Dietterich and Cashman (2014).…”

Combined morphological and thermal analysis of lava flows: A way to boost understanding of emplacement dynamics

“…The peak at the snout, instead, can be ascribed to the glowing front (Borgia, Linneman, Spencer, Diego Morales, & Brenes Andres, ; pinkish‐filled in Figure ). Altogether, our measurements suggest that major slope breaks can promote heat dissipation (Glaze, Baloga, Fagents, & Wright, ; Rothery, Francis, & Wood, ) and a thicker lava deposit (Lombardo, ; Tarquini, ). Interestingly, all the radiance peaks observed in the proximal reaches are unrelated to the slope signal, as well as at least one of the major radiance peaks in the Valle del Bove.…”

Modeling lava flow propagation over a flat landscape by using MrLavaLoba: the case of the 2014–2015 eruption at Holuhraun, Iceland

“…First, the path and confinement (to the north) of channel c1.1 suggests that the direction of propagation of a lava flow can be the outcome of minor topographic confinements [Pedersen et al, 2017], unnoticeable at the resolution of the DEMs used here as computational do− main for simulations. In this case, the structure of the es− tablished lava channel, later on, can amplify the original minor confinement as a result of the self−confinement exerted by the levees [Tarquini, 2017]. Secondly, lava channels, in case of a very low topographic gradient, can locally propagate at odds with respect to the local slope (phase 2 Figure 6 A, C).…”

“…As highlighted above, one of the key points is dealing with the syn−emplacement topographic modifications. When considering entirely different effusive episodes spaced in time, the existing literature suggests that recent lava de− posits can act as a "repeller" for the path of new lava flows, as a result of the "topographic inversion" rule [Tarquini, 2017]. This is especially true when thick lava deposits form [Mt Etna examples are illustrated in Tar− quini and Favalli, 2010], and there is no specific topo− graphic confinement [Pinkerton and Wilson, 1994;Favalli et al, 2012a].…”

“…Neteler et al, 2012], and an SDP−based analysis can forecast flow paths and drainage networks of subaerial water flows [Tarboton, 1997]. Lava flows are more complex than water flows because some of the originally flowing lava solidifies and modifies the pre−existing topography [Tarquini, 2017]. As an example, the DOWNFLOW code for the simulation of lava flows [Favalli et al, 2005] accounts for the feedback effect due to lava solidification by in− troducing a stochastic perturbation of the topography.…”