About
19
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Introduction
I work at the Earth Observatory of Singapore in the InVEST project, studying dynamic hazard and impacts of volcanoes in SE Asia. Previously, I worked at the University of Bristol investigating volcanic hazards and risk in Guatemala; first as a PhD, later as a postdoc with the Ixchel project. I use multiple research methods. My research interests include remote sensing of volcanoes, timeseries analysis, evacuation dynamics, and probabilistic forecasting of flow hazards and impacts.
Current institution
Education
September 2011 - June 2015
Publications
Publications (19)
Although disasters disproportionately affect vulnerable people, their experiences often go untold. Disaster researchers increasingly use participatory research methods to recognize and amplify these missing voices. Arts-based participatory methods promise both empowerment for local people and opportunity for researchers to work creatively and refle...
During volcanic crisis, effective risk mitigation requires that institutions and local people respond promptly to protect lives and livelihoods. In this paper, we ask: over what timescales do explosive paroxysmal eruptions evolve? And how do these timescales relate to those of people’s past responses? We explore these questions by comparing timesca...
This report characterizes Guatemala’s professional geohazards community and profiles their education and career development priorities. The report aims to support international organisations and individuals working in Guatemala and with Guatemalan scientists to tailor their capacity-strengthening activities.
As major drivers of behavior during crisis, cultural norms influence how disasters differentially affect people of different genders. Cultural gender norms also impact how authorities and at-risk populations approach disaster risk reduction strategies. At Fuego volcano, Guatemala, we applied qualitative methods to investigate women’s experiences of...
This is a summary report for my project, Investigating spatial distribution and impacts of airfall deposits from the October 1974 eruptive episode of Volcán de Fuego, Guatemala. This project was awarded funding by the Jeremy Willson Charitable Trust (JWCT) through the annual Geological Society of London Awards in March 2021. In my application I pro...
Satellite radar backscatter has the potential to provide useful information about the progression of volcanic eruptions when optical, ground‐based, or radar phase‐based measurements are limited. However, backscatter changes are complex and challenging to interpret: explosive deposits produce different signals depending on pre‐existing ground cover,...
This thesis presents an interdisciplinary case study of the active Volcán de Fuego in southern Guatemala to examine: (1) the physical behaviours and volcanic hazards that characterize eruptions occurring in recent years, and (2) the factors that influence local residents’ decision to evacuate from these eruptions. The thesis presents different answ...
The estimation of the volume of volcanic flows during an ongoing eruption is challenging but this information is crucial for improving risk assessment and for forecasting future events. Although previous studies have shown the ability of TanDEM-X satellite data to derive the thickness and the volume of lava flow fields during effusive eruptions, th...
Volcán de Fuego (Guatemala) is an active stratovolcano capable of large (VEI~>2) explosive eruptions like that of 3rd June 2018, which triggered pyroclastic flows that devastated the community of San Miguel Los Lotes and caused hundreds of fatalities and severe long-term socioeconomic impacts. Future volcanic risk mitigation efforts are likely to i...
Using the multispectral NicAIR camera to trace SO2 degassing at Volcán de Fuego, Guatemala
Actividad histórica Volcán de Fuego es conocido por la constancia de su actividad, que se manifiesta en erupciones estrombolianas frecuentes intercalados con eventos mas fuertes como la del octubre 1974. Desde el principio de 2015 ha empezado un nuevo ciclo de actividad que consiste en paroxismos con efusión de lava 2. La erupción más reciente de e...
This study presents a method and a proof of principle system for the direct measurement of volcanic plume 3-D spatial properties. The shape of a plume is reconstructed in three dimensions using multi-view imagery collected from static ground-based cameras. The method was developed using data collected during an expedition to Volcán de Fuego in Guat...
Volcán de Fuego is a stratovolcano in Guatemala that has produced over 50 VEI ≥ 2 eruptions since 1524. After two decades of quiescence, in 1999 Fuego entered a new period of eruptive activity that continues until the present day, characterized by persistent Strombolian activity interspersed with occasional “paroxysmal” eruptions of greater magnitu...
Volcán de Fuego (Guatemala) erupted explosively with unusual intensity, producing widespread ash dispersal and pyroclastic flows of N11 km length, which destroyed a community on Fuego's flanks, causing hundreds of fatalities. Here, we analyze satellite measurements of the SO 2 plume emitted during the most intense eruptive phase. Key eruption param...
This poster describes a preliminary study of eruptive activity at Volcán de Fuego in southern Guatemala during the period 2015 - 2017. The poster identifies and describes recurrent above-background explosive eruptions ("paroxysms") through seismic and thermal satellite datasets.
