Skip to main content
Advanced Search

Filters: Tags: {"type":"Harvest Set"} (X) > partyWithName: Laura Clor (X)

7 results (15ms)   

View Results as: JSON ATOM CSV
thumbnail
This release presents volcanic gas monitoring data from periodic surveys and temporary instrument deployments at Newberry Volcano, Oregon. Measurements of plume-gas and ambient air compositions were obtained using single-gas industrial hydrogen sulfide (H2S) sensors and with multi-GAS (multiple Gas Analyzer System; Aiuppa et al., 2005; Shinohara, 2005; Lewicki et al., 2017) instruments that measure water vapor (H2O), carbon dioxide (CO2), sulfur dioxide (SO2), and H2S abundances. Discrete multi-GAS surveys were completed in 2017 at East Lake hot springs and Paulina hot springs. In response to reports of anomalous degassing in the summer of 2020 more extensive discrete multi-GAS surveys were completed around Newberry...
thumbnail
This data release contains digital GIS files digitized from 'Geologic map of Lower Geyser Basin, Yellowstone National Park, Wyoming' by L.J.P. Muffler, D.E. White, A.H. Truesdell, and R.O. Fournier, Miscellaneous Investigations Series Map I-1373.
thumbnail
This release presents data collected during airborne volcanic gas monitoring flights at Iliamna Volcano, Alaska, that were completed between 2004-2017. Instrumented fixed-wing aircraft were used to collect in situ trace gas measurements of volcanic carbon dioxide (CO2), sulfur dioxide (SO2), and hydrogen sulfide (H2S). The sensor payload also included an upward-looking correlation spectrometer (COSPEC) and/or differential optical absorption spectroscopy (DOAS) system. The remote sensing instruments were used to derive volcanic SO2 emission rates by measuring incident scattered solar ultraviolet radiation while traversing beneath the plume. Gas compositions and COSPEC output (volts) were recorded at 1 Hz and DOAS...
thumbnail
A fissure eruption occurred in Kīlauea Volcano’s Lower East Rift Zone (LERZ) from April to September 2018. During this event, volcanic gases were emitted from three active areas on the volcano. The most intense degassing occurred at the active fissures in the LERZ, thus causing parts of Hawaiʻi Island’s Puna district to be exposed to life-threatening sulfur dioxide (SO2) concentrations. At the same time, gas emissions from the volcano’s summit and East Rift Zone (ERZ) slowly declined from their decade-long averages as magma drained from the volcano’s shallow plumbing system. Throughout the eruption, the USGS used a Mobile Differential Optical Absorption Spectrometer (Mobile DOAS) to record ultraviolet (280 – 420...
thumbnail
This release presents provisional volcanic gas monitoring data from multi-GAS (multiple Gas Analyzer System) station "YELL_MUD", installed in July 2021 in the Obsidian Pool thermal area, Yellowstone National Park, USA. The multi-GAS station includes gas sensors to measure water vapor, carbon dioxide (CO2), sulfur dioxide (SO2), and hydrogen sulfide (H2S) in gas plumes, as well as meteorologic parameters (wind speed and direction, ambient temperature and relative humidity, ambient pressure), and the temperature of a nearby geothermal feature. The station is duty cycled to conserve power and collects data for 30 minutes every 6 hours beginning at 00:00, 06:00, 12:00, and 18:00 UTC. Before each measurement cycle the...
thumbnail
Measurement of sulfur dioxide (SO2) emission rates is a critical aspect of monitoring and studying active volcanoes. Changes in emission rate are often associated with changes in volcanic activity and in some cases may herald future changes in activity. At the Hawaiian Volcano Observatory (HVO), emission rates of SO2 from Hawaiian volcanoes have been measured by ultraviolet spectrometer since the late 1970s [Casadevall and others, 1987]. Here we present a compilation of SO2 emission rate measurements made from 2018 to 2022. The emission rates (in t/d) span five orders of magnitude through a range of activity styles unprecedented in recent times, including caldera collapse [Anderson and others, 2019], the first prolonged...
thumbnail
Hot Creek Gorge contains the most obvious surface expression of the hydrothermal system in Long Valley Caldera, California, discharging 200-300 L/s of thermal water according to USGS measurements made since 1988. Formerly, Hot Creek was a popular public swimming area, but it was closed in 2006 due to unpredictable temperature fluctuations and sporadic geysering of thermal water within the creek (Evans et al., 2018). The USGS has monitored the thermal regime in the area since the mid-1980s, including a series of long-term studies 0.6 km away at well CH-10b. Temperature measurements in the ~100 m deep well, which have been performed on an intermittent basis since it was drilled in 1983, reveal a complex temperature...
    map background search result map search result map Groundwater levels and temperatures in well CH-10b near Hot Creek, Long Valley Caldera, eastern California (ver. 2.0, May 2020) Differential Optical Absorption Spectroscopy data acquired during the 2018 rift eruption of Kīlauea Volcano Data from Monitoring Volcanic Gases in Plumes and Ambient Air, Newberry Volcano, Oregon Database for the Geologic Map of Lower Geyser Basin, Yellowstone National Park, Wyoming Airborne Volcanic Gas Measurements at Iliamna Volcano, Alaska 2004-2017 Provisional Multi-GAS Volcanic Gas Monitoring Data, Obsidian Pool thermal area, Yellowstone National Park Sulfur dioxide emission rates from Hawaiian volcanoes, 2018-2022 Provisional Multi-GAS Volcanic Gas Monitoring Data, Obsidian Pool thermal area, Yellowstone National Park Data from Monitoring Volcanic Gases in Plumes and Ambient Air, Newberry Volcano, Oregon Groundwater levels and temperatures in well CH-10b near Hot Creek, Long Valley Caldera, eastern California (ver. 2.0, May 2020) Differential Optical Absorption Spectroscopy data acquired during the 2018 rift eruption of Kīlauea Volcano Airborne Volcanic Gas Measurements at Iliamna Volcano, Alaska 2004-2017 Sulfur dioxide emission rates from Hawaiian volcanoes, 2018-2022