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I am a volcano geochemist whose research quantifies temporal and spatial variations in gas and heat emissions, seeks to understand the processes that drive these variations, and evaluates the state of magmatic and/or volcanic activity.
Hazy conditions caused by sulfur dioxide (SO2) emissions from Halema‘uma‘u crater, Kīlauea, Hawai‘i. USGS photo by Jennifer Lewicki, December 25, 2024.
Hazy conditions caused by sulfur dioxide (SO2) emissions from Halema‘uma‘u crater, Kīlauea, Hawai‘i. USGS photo by Jennifer Lewicki, December 25, 2024.
The eddy covariance station shown in this photo has been continuously measuring CO₂ emissions since 2014, providing half-hourly measurements of volcanic gas flux. Unlike previous seasonal monitoring that was limited by snowpack, this 6-meter-tall tower setup with commercial power allows year-round operation - a first for volcanic gas monitoring in this environment.
The eddy covariance station shown in this photo has been continuously measuring CO₂ emissions since 2014, providing half-hourly measurements of volcanic gas flux. Unlike previous seasonal monitoring that was limited by snowpack, this 6-meter-tall tower setup with commercial power allows year-round operation - a first for volcanic gas monitoring in this environment.
To sample volcanic gases, inverted funnels connected to an evacuated sample bottle by tubing are sealed over a fumarole. Painter's poles are used to reach gas vents across dangerous (hot, unstable, or fragile) ground.
To sample volcanic gases, inverted funnels connected to an evacuated sample bottle by tubing are sealed over a fumarole. Painter's poles are used to reach gas vents across dangerous (hot, unstable, or fragile) ground.
Bison in Yellowstone National Park. USGS photo by Jennifer Lewicki, September 20, 2023.
Bison in Yellowstone National Park. USGS photo by Jennifer Lewicki, September 20, 2023.
Multi-GAS station installed in the Mud Volcano area of Yellowstone National Park under permit YELL-2022-SCI-7082. The station was situated on stable, cool ground away from the edge of thermal features to ensure no impact to the features.
Multi-GAS station installed in the Mud Volcano area of Yellowstone National Park under permit YELL-2022-SCI-7082. The station was situated on stable, cool ground away from the edge of thermal features to ensure no impact to the features.
USGS scientists Laura Dobeck and Sara Peek carrying field equipment to set up a gas monitoring station in Yellowstone National Park. USGS photo by Jennifer Lewicki, July 13, 2021.
USGS scientists Laura Dobeck and Sara Peek carrying field equipment to set up a gas monitoring station in Yellowstone National Park. USGS photo by Jennifer Lewicki, July 13, 2021.
Photograph of permanent eddy covariance station installed since 2014 in area of volcanic CO2 emissions on Mammoth Mountain, California. USGS photo by Jennifer Lewicki, August 2019.
Photograph of permanent eddy covariance station installed since 2014 in area of volcanic CO2 emissions on Mammoth Mountain, California. USGS photo by Jennifer Lewicki, August 2019.
USGS scientist Deborah Bergfeld collects a gas sample from a fumarole on the flank of Akutan Volcano, Akutan Island, Alaska.
USGS scientist Deborah Bergfeld collects a gas sample from a fumarole on the flank of Akutan Volcano, Akutan Island, Alaska.
Steam rises from degassing fumaroles (middle right) and a boiling pool (middle left) on the flank of Akutan Volcano, Akutan Island, Alaska.
Steam rises from degassing fumaroles (middle right) and a boiling pool (middle left) on the flank of Akutan Volcano, Akutan Island, Alaska.
Hazy conditions caused by sulfur dioxide (SO2) emissions from Halema‘uma‘u crater, Kīlauea, Hawai‘i. USGS photo by Jennifer Lewicki, December 25, 2024.
Hazy conditions caused by sulfur dioxide (SO2) emissions from Halema‘uma‘u crater, Kīlauea, Hawai‘i. USGS photo by Jennifer Lewicki, December 25, 2024.
The eddy covariance station shown in this photo has been continuously measuring CO₂ emissions since 2014, providing half-hourly measurements of volcanic gas flux. Unlike previous seasonal monitoring that was limited by snowpack, this 6-meter-tall tower setup with commercial power allows year-round operation - a first for volcanic gas monitoring in this environment.
The eddy covariance station shown in this photo has been continuously measuring CO₂ emissions since 2014, providing half-hourly measurements of volcanic gas flux. Unlike previous seasonal monitoring that was limited by snowpack, this 6-meter-tall tower setup with commercial power allows year-round operation - a first for volcanic gas monitoring in this environment.
To sample volcanic gases, inverted funnels connected to an evacuated sample bottle by tubing are sealed over a fumarole. Painter's poles are used to reach gas vents across dangerous (hot, unstable, or fragile) ground.
To sample volcanic gases, inverted funnels connected to an evacuated sample bottle by tubing are sealed over a fumarole. Painter's poles are used to reach gas vents across dangerous (hot, unstable, or fragile) ground.
Bison in Yellowstone National Park. USGS photo by Jennifer Lewicki, September 20, 2023.
Bison in Yellowstone National Park. USGS photo by Jennifer Lewicki, September 20, 2023.
Multi-GAS station installed in the Mud Volcano area of Yellowstone National Park under permit YELL-2022-SCI-7082. The station was situated on stable, cool ground away from the edge of thermal features to ensure no impact to the features.
Multi-GAS station installed in the Mud Volcano area of Yellowstone National Park under permit YELL-2022-SCI-7082. The station was situated on stable, cool ground away from the edge of thermal features to ensure no impact to the features.
USGS scientists Laura Dobeck and Sara Peek carrying field equipment to set up a gas monitoring station in Yellowstone National Park. USGS photo by Jennifer Lewicki, July 13, 2021.
USGS scientists Laura Dobeck and Sara Peek carrying field equipment to set up a gas monitoring station in Yellowstone National Park. USGS photo by Jennifer Lewicki, July 13, 2021.
Photograph of permanent eddy covariance station installed since 2014 in area of volcanic CO2 emissions on Mammoth Mountain, California. USGS photo by Jennifer Lewicki, August 2019.
Photograph of permanent eddy covariance station installed since 2014 in area of volcanic CO2 emissions on Mammoth Mountain, California. USGS photo by Jennifer Lewicki, August 2019.
USGS scientist Deborah Bergfeld collects a gas sample from a fumarole on the flank of Akutan Volcano, Akutan Island, Alaska.
USGS scientist Deborah Bergfeld collects a gas sample from a fumarole on the flank of Akutan Volcano, Akutan Island, Alaska.
Steam rises from degassing fumaroles (middle right) and a boiling pool (middle left) on the flank of Akutan Volcano, Akutan Island, Alaska.
Steam rises from degassing fumaroles (middle right) and a boiling pool (middle left) on the flank of Akutan Volcano, Akutan Island, Alaska.
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government