1 , B. A. Campbell 1 , J. W. Holt 2 , R. J. Phillips 3 , N. E. Putzig 3 , C. H. Okubo 4 , R. Seu 5 and D. Biccari 5 , 1 Center for Earth and Planetary Studies, Smithsonian Institution, PO Box 37012, Washington, DC 20013 ([email protected]), 2 Institute for Geophysics, J. A. and K. A. Jackson School of Geosciences, U. Texas, Austin, TX 78713, 3 Southwest Research Institute, Boulder, CO 80302, 4 U.S...

Constraining the eruption rates of flood basalt lava flows remains a significant challenge despite decades work. One potential observable proxy for is lava-flow lobe thicknesses, topic that we tackle here quantitatively. In this study, provide first global compilation p?hoehoe lava-lobe thicknesses from various continental provinces (? 3,800 measurements) to compare characteristic within and be...

The goal of this study was to characterize the eruptive behavior of Olympus Mons, Mars, by estimating flow speeds and volume fluxes for lava flows produced from various vents on the volcano. During my fellowship, I have made width, depth and ground slope measurements of 65 lava tubes and 271 channels from 56 MOC images and 65 THEMIS images of Olympus Mons. The data show that channels are more n...

This paper presents an efficient implementation of the SCIARA Cellular Automata computational model for simulating lava flows using the Compute Unified Device Architecture (CUDA) interface developed by NVIDIA and carried out on Graphical Processing Units (GPU). GPUs are specifically designated for efficiently processing graphic data sets. However, they are also recently being exploited for achi...

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Surface topography is of great importance in radar back scattering, but the quantitative interpretation of data collected in the field is still a difficult problem. We present topographic profiles at 25-cm and 5-cm horizontal resolution for three sites along a lava flow on KUauea Volcano, and use these data to illustrate techniques for surface roughness analysis. Height and slope distributions ...

Introduction: Galileo SSI obtained many images of Io in eclipse by Jupiter, in which the only light that reached the camera was due to hotspot emissions from active volcanoes and from diffuse atmospheric/plume glows [1]. During the first orbits of the Galileo mission, there were full disk eclipse images taken of nearly the entire surface of Io. We correlated these images with high resolution ba...

Meter-scale DSL-120 sonar mapping and coregistered Argo II photographic observations reveal changes in eruptive style that closely follow the third-order structural segmentation of the ridge axis on the southern East Pacific Rise, 17°11’-18°37’S. Near segment ends we observe abundant basaltic lava domes which average 20 m in height and 200 m in basal diameter and have pillow lava as the dominan...

The stabilized channel is a crucial element of an ‘a‘ā flow system, delivering lava to forward extending zones dispersed flow. However, the term stable implies that geometries, properties, and dynamics are invariable. just how these in space time? To answer this question, we constrain degree variation for extremely well-exposed on Kīlauea (Hawai’i), carrying out mapping, facies analyses, sampli...

Crater Lake was surveyed nearly to its shoreline by high-resolution multibeam echo sounding in order to define its geologic history and provide an accurate base map for research and monitoring surveys. The bathymetry and acoustic backscatter reveal the character of landforms and lead to a chronology for the concurrent filling of the lake and volcanism within the ca. 7700 calibrated yr B.P. cald...