Ghub - Members: View: William I Rose

This presentation is part of the workshop "Volcanic Hazards and Remote Sensing in Pacific Latin America" held in Costa Rica in January 2011.Speaker: William I. Rose

Geology of the Keweenaw Rift, Upper Michigan

27 Apr 2011 | Contributor(s): William I Rose

This is a one hour 15 min lecture which is aimed at the Geology of the Keweenaw Peninsula and Isle Royale, where the Portage Lake Lava Series and the Copper Harbor Conglomerate are exposed and Earth's earliest known continental flood basalts can be observed in the field. The lecture is meant to...

1992 Spurr Eruption Case Discussion

27 Apr 2011 | Contributor(s): William I Rose

This lecture summarizes distal ash cloud observations via satellite and radar, along with information about meteorology and fallout, for the 1992 Crater Peak/Spurr eruptions. These small subplinian events produced significant fine and very fine ash fallouts that were sampled and measured. Even...

More Volcanic Ash Remote Sensing

27 Apr 2011 | Contributor(s): William I Rose

Environmental aspects of volcanic clouds as investigated by remote sensing tools. Ice in volcanic clouds. Separation of ash and SO2 in volcanic clouds.Rose, W. I., D. J. Delene, D. J. Schneider, G. J. S. Bluth, A. J. Krueger, I. Sprod, C. McKee, H. L. Davies and G. G. J. Ernst, 1995, Ice in the...

Thunderstorms and Volcanic Clouds

27 Apr 2011 | Contributor(s): William I Rose

There are many similarities between eruption clouds and common convective clouds which lead to thunderstorms. This lecture calls attention to the comparison.

Weather Radar Systems (Lacasse et al)

27 Apr 2011 | Contributor(s): William I Rose

This lecture describes the vital observations that can be made by ground-based weather radar systems. It is based on a paper written by Lacasse et al and which is attached in the supporting documents of this presentation.Lacasse, C, S Karlsdóttir, G Larsen, H Soosalu, W I Rose and G G J...

An introduction to Santiaguito/Santa Maria Guatemala

27 Apr 2011 | Contributor(s): William I Rose

An introductory lecture about a pair of related volcanoes in Guatemala, Santa Maria and Santiaguito. Meant to help orient researchers on this great laboratory volcano. The first part of the lecture is followed by Part 2, which in in the supporting documents.Escobar Wolf, R, RO Matias Gomez and WI...

Mapping a 49 year old eruption of a basaltic cone: Pacaya Guatemala

27 Apr 2011 | Contributor(s): William I Rose

This presentation summarizes the 50 year eruption and the 3 dimensional map produced. The map, prepared as part of an MS thesis by Ruben Otoniel Matias Gomez, is under review as a Map and Chart Series publication by the GSA. The lecture summarizes the situation at Pacaya, and uses Matias' map as...

More Volcano Meteorology

31 Mar 2011 | Contributor(s): William I Rose

Adiabatic processes, humidity in the atmosphere. Hydrometeors, stable and unstable air. Coriolis. Winds on a spherical surface.

Reducing the threat to aviation from airborne volcanic ash

10 Feb 2011 | Contributor(s): William I Rose

Chaiten eruption observations, May 2008

10 Feb 2011 | Contributor(s): William I Rose

A review of the Chaiten eruptions based mainly on satellite observations. This lecture was compiled in October 2009.

Detecting volcanic ash from space

08 Feb 2011 | Contributor(s): William I Rose

How satellites detect, map and measure volcanic ash in volcanic clouds. HYSPLIT and volcanic cloud satellite observations. Volcanic cloud stages. Infrared satellite detectors, split window. Evolution of volcanic clouds from space platforms.Rose, W I, G J S Bluth, D J Schneider, G G J Ernst, C M...

Direct sampling of volcanic clouds

08 Feb 2011 | Contributor(s): William I Rose

Volcanic clouds have only sporadically been directly sampled. Sampling is advantageous to validate remote sensing. Direct sampling was more common in the 1978-1984 period before the hazards to jet aircraft were understood and when piston aircraft sampling was more prevalent. This sampling...

Volcanological meteorology

08 Feb 2011 | Presentations | Contributor(s): William I Rose

Atmospheric layers, pressure temperature relationships. Origin of winds. Wind shear and pressure maps. Weather satellite data, weather radar systems. Cloud classifications. Radiosondes. Latent heat and Bowen ratios. Phase changes of water.

Ashfall blankets

08 Feb 2011 | Presentations | Contributor(s): William I Rose

Ashfall deposit geometry--blanket. Grain size/distance patterns. Total grain size distributions.Rose, W I, S Self, P J Murrow, G G J Ernst C Bonadonna and A J Durant, 2007, Pyroclastic fall deposit from the October 14, 1974 eruption of Fuego Volcano, Guatemala, Bull Volcanol,70 (9): 1043-1067,...

Numerical fallout models: An introduction based on Suzuki (1983)

08 Feb 2011 | Presentations | Contributor(s): William I Rose

Suzuki, T., 1983. A theoretical model for dispersion of tephra, in: D. Shimozuru and I. Yokoyama (eds) Arc Volcanism: Physics and Tectonics, Terra Scientific Publishing, Tokyo, 95-116.

Particle fall through the atmosphere

08 Feb 2011 | Presentations | Contributor(s): William I Rose

Particle fall in atmosphere. Particle Reynolds Numbers, turbulent and laminar flow. Shapes of volcanic ash particles. Fine particle fallout. Aggregation.Rose W I, C M Riley and S Dartevelle, 2003, Sizes and shapes of 10 ma distal ashfall pyroclasts in the Ogalalla Group, Nebraska, J Geology,...

William I Rose

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