Item talk:Q54838
From geokb
orcid:
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usgs_staff_profile:
meta: status_code: 200 timestamp: '2023-09-30T17:25:08.454519' url: https://www.usgs.gov/staff-profiles/shaul-hurwitz profile: abstracts: [] affiliations: [] education: - PhD (1999), The Hebrew University of Jerusalem email: shaulh@usgs.gov expertise_terms: - Volcano hydrothermal systems - Numerical simulation - Geysers - Volcanic lakes - Geothermal energy production - Groundwater quality honors: [] intro_statements: - My research objectives are to characterize and quantify spatial and temporal patterns of temperature, pressure, chemistry, and phase (e.g. liquid or gas) in volcano-hydrothermal systems and relate them to magmatic and/or volcanic activity. name: Shaul Hurwitz name_qualifier: null orcid: 0000-0001-5142-6886 organization_link: https://www.usgs.gov/observatories/calvo organization_name: California Volcano Observatory personal_statement: "Quantitative understanding of groundwater and gas-rich fluid\ \ dynamics in volcanic areas is important for several reasons: 1) pressure,\ \ temperature and chemical changes in the hydrothermal system might signal one\ \ of the earliest warnings of volcanic unrest, 2) Many of the geochemical, geodetic,\ \ and seismic signals measured at the volcano\u2019s surface have hydrothermal\ \ origins or magmatic origins modulated by the intervening hydrothermal system,\ \ 3) as a major source of hazard such as propellant in steam-driven explosions,\ \ lubricant in mudflows, and transport agent for toxic constituents such as\ \ arsenic and mercury, 4) guiding exploration and mining of geothermal energy\ \ and mineral deposits. To better understand these complex systems I integrate\ \ and synthesize hydrologic, geochemical, geologic, and geophysical methods.\ \ My research is intended to support the USGS Volcano Hazards Program\u2019\ s broad goal of lessening the harmful impacts of volcanic activity and the Geothermal\ \ Project's goals of exploring reservoirs of hot fluids in the Earth\u2019s\ \ crust.Research topics:Water-gas-rock interaction in volcano-hydrothermal systems\ \ using field observations, chemical and isotopic data, controlled laboratory\ \ experiments and thermodynamic modelsNumerical simulations of volcano-hydrothermal\ \ systemsModulation of volcanic and geyser activity by cyclic hydrological and\ \ climatic forcers and by large earthquakesThe effects of deglaciation on Yellowstone's\ \ hydrothermal systemHeat transport in volcanic systemsDynamics and chemistry\ \ of volcanic lakesGeyser dynamics - motivation for studying geysersThe impact\ \ of geothermal energy production on groundwater qualityDevelopment of a field-portable\ \ helium isotope analyzer" professional_experience: [] title: Research Hydrologist
