6-6-6-6-6-6-6-6-6-6-6-6-6 From: Simon Carn <scarn@xxxxxxx> Colleagues, It is with deep sadness that we announce the passing of Professor Emeritus William (Bill) Rose on July 17 at his home in Eagle Harbor, Michigan. Bill was born in Detroit, Michigan in 1944 and spent his formative years in New Mexico. He obtained a BA in Geography and Geology from Dartmouth College in 1966. He remained at Dartmouth for his PhD, advised by Richard Stoiber, which marked the beginning of a lifelong association with the volcanoes of Central America and especially Guatemala. After earning his PhD in 1970, Bill joined the faculty at Michigan Technological University in Houghton, MI. He dedicated his entire 41-year faculty career to Michigan Tech, serving as Chair of the Department of Geological and Mining Engineering and Sciences (GMES) from 1990 to 1998. He received the AGU Bowen Award in 2002 and was elected a Fellow of AGU in 2013. Billâ??s many scientific contributions include pioneering studies of the composition of volcanic plumes and their impacts on the atmosphere and aviation. During his PhD, he recognized that the numerous persistently active, accessible vents of Central American volcanoes were an ideal natural laboratory for studies of volcanic emissions. Subsequent annual visits to sample active fumaroles and ash deposits throughout Central America (including the major 1974 eruption of Fuego volcano, Guatemala) provided new insights into the interactions between ash particles, aerosols and gases in volcanic emissions, such as scavenging of sulfur and chlorine by ash. This was followed by a novel series of aircraft missions to sample Central American volcanic plumes in-situ, in collaboration with scientists from NCAR, the USGS and NASA. In the 1980s, this new data on volcanic plume composition, coupled with the major eruptions of Mount St Helens in 1980 and El Chichón in 1982, led Bill to develop an interest in the potential hazards to aviation from volcanic eruption clouds, years ahead of any major scientific efforts on this topic. Beginning in the late 1980s, Bill was also among the first volcanologists to use satellite remote sensing data to study volcanic clouds and he became a well-recognized leader in the field. In addition, he pioneered the use of weather radar to detect volcanic ash clouds. With his graduate students, he used satellite data to develop the first quantitative retrievals of ash mass and particle size in volcanic clouds and investigated ash/aerosol interactions, aviation hazards, and distal ash fallout patterns at Augustine, Redoubt, El Chichón, Mount Spurr, Cerro Hudson, and Pinatubo. After the 1994 Rabaul eruption in Papua New Guinea, Bill used satellite data to demonstrate the first detection of an ice-rich volcanic plume. This discovery initiated a major research effort to understand the role of hydrometeors in volcanic clouds, which remains very active today. Alongside his scientific efforts, Bill worked tirelessly to build capacity for geological hazard mitigation in Latin America and ensure that discoveries in his field were put to practical use. He accomplished this by organizing and funding international workshops, editing special publications, training Latin American graduate students and scientists, and facilitating field missions. Billâ??s work on satellite-based volcanic cloud detection and aviation hazard mitigation achieved global impact by frequent outreach to advanced users in the network of Volcanic Ash Advisory Centers (VAACs), which monitor volcanic ash clouds for the aviation community. Bill was a highly creative science educator. At Michigan Tech, he initiated several innovative educational programs, including the first Peace Corps Masters International (PCMI) program focused on geological hazard mitigation, which embedded MS students in communities throughout Central America and in Indonesia. The PCMI program was among the first concerted efforts in â??social geologyâ??, a concept now widely adopted to improve mitigation of natural hazards. Bill also instigated the University Consortium in Earth Hazards (EHaz), a North American mobility project focused on geological hazards, and the International Masters in Volcanology and Geotechniques (INVOGE) program in cooperation with universities in France and Italy. Together, these programs started numerous graduate students on the path towards successful international careers in geoscience. Bill traveled the world studying volcanoes, but his heart remained firmly anchored at home in Upper Michiganâ??s Keweenaw peninsula, a region shaped by ancient volcanism and famous for its native copper deposits. After retiring in 2012, Bill devoted himself to illuminating the unique geoheritage of the Keweenaw in the hope that, one day, it might become the first UNESCO Geopark in North America; a fitting tribute to a career dedicated to geoscience, community and outreach. Billâ??s family has created this online obituary where memories and photos can be posted: https://www.legacy.com/us/obituaries/name/william-rose-obituary?id=58929078 6-6-6-6-6-6-6-6-6-6-6-6-6 ------------------------------
