Scientists use a MultiGAS instrument (gray, hard-shell case) to measure gas compositions from the East Lake hot spring in the Newberry caldera. The photo was taken on August 3, 2020 just after sunrise. The vapor above the hot spring and lake is typical for cool mornings and is not visible later in the day.
Peter Kelly
I am a research geologist based at the Cascades Volcano Observatory. I work to better understand magmatic and hydrothermal systems through research and monitoring of volcanic gas emissions.
I work on US volcanoes as a member of the USGS Volcano Emissions Project and internationally as a member of the USAID-USGS Volcano Disaster Assistance Program (VDAP). This work includes an emphasis on developing and applying new technologies to implement real-time gas monitoring on volcanoes. Prior to joining the USGS in 2008, I spent two years at the University of New Hampshire working on a NOAA-funded project to monitor air pollution.
Science and Products
Characterizing magmatic gases directly in the field
USGS scientist Peter Kelly with the support of the National Innovation Center and partnering with Los Gatos Research, Inc. collaborated to adapt a commercially-available, industrial, in situ HCl-HF analyzer for use in airborne and ground-based measurements of volcanic gases.
A MultiGAS instrument measures gases at Newberry Volcano
Scientists use a MultiGAS instrument (gray, hard-shell case) to measure gas compositions from the East Lake hot spring in the Newberry caldera. The photo was taken on August 3, 2020 just after sunrise. The vapor above the hot spring and lake is typical for cool mornings and is not visible later in the day.
A novel HCl/HF analyzer
State-of-art, cavity-enhanced analyzer to help solve this long-standing technical problem in volcano science, adapted from an industrial instrument. The Off-Axis Integrated Cavity Output Spectroscopy (OA-ICOS) yields a several kilometer path length for absorption. Contains two near-IR tunable diode lasers and is field portable, fast, and precise.
State-of-art, cavity-enhanced analyzer to help solve this long-standing technical problem in volcano science, adapted from an industrial instrument. The Off-Axis Integrated Cavity Output Spectroscopy (OA-ICOS) yields a several kilometer path length for absorption. Contains two near-IR tunable diode lasers and is field portable, fast, and precise.
Science and Products
Characterizing magmatic gases directly in the field
USGS scientist Peter Kelly with the support of the National Innovation Center and partnering with Los Gatos Research, Inc. collaborated to adapt a commercially-available, industrial, in situ HCl-HF analyzer for use in airborne and ground-based measurements of volcanic gases.
A MultiGAS instrument measures gases at Newberry Volcano
Scientists use a MultiGAS instrument (gray, hard-shell case) to measure gas compositions from the East Lake hot spring in the Newberry caldera. The photo was taken on August 3, 2020 just after sunrise. The vapor above the hot spring and lake is typical for cool mornings and is not visible later in the day.
Scientists use a MultiGAS instrument (gray, hard-shell case) to measure gas compositions from the East Lake hot spring in the Newberry caldera. The photo was taken on August 3, 2020 just after sunrise. The vapor above the hot spring and lake is typical for cool mornings and is not visible later in the day.
A novel HCl/HF analyzer
State-of-art, cavity-enhanced analyzer to help solve this long-standing technical problem in volcano science, adapted from an industrial instrument. The Off-Axis Integrated Cavity Output Spectroscopy (OA-ICOS) yields a several kilometer path length for absorption. Contains two near-IR tunable diode lasers and is field portable, fast, and precise.
State-of-art, cavity-enhanced analyzer to help solve this long-standing technical problem in volcano science, adapted from an industrial instrument. The Off-Axis Integrated Cavity Output Spectroscopy (OA-ICOS) yields a several kilometer path length for absorption. Contains two near-IR tunable diode lasers and is field portable, fast, and precise.