| 项目编号: | 1724986
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| 项目名称: | ABR: Field, Laboratory, and Numerical Studies of Geyser Eruptions |
| 作者: | Michael Manga
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| 承担单位: | University of California-Berkeley
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| 批准年: | 2017
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| 开始日期: | 2017-09-01
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| 结束日期: | 2020-08-31
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| 资助金额: | 264201
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Earth Sciences
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| 英文关键词: | geyser
; geyser behavior
; laboratory study
; geyser-like behavior
; geyser system
; geysering process
; field measurement
; scientific study
; natural laboratory
|
| 英文摘要: | Geysers are springs that intermittently erupt mixtures of steam and liquid water. They are popular tourist attractions, with a few million people watching geysers erupt in Yellowstone National Park each year. Geysers are the surface expression of geothermal systems and provide insight into heat and fluid flow in volcanically active areas. Geysers also provide a natural laboratory to study eruption processes and the geophysical and hydrological signals that can be measured before, during, and after an eruption. Because they are smaller than volcanic eruptions, and erupt more frequently, they provide an opportunity to collect abundant data and develop approaches for integrating and interpreting measurements. Geysers and their deposits have been studied to understand life in extreme environments. Geyser-like behavior of water and hydrocarbons has also been observed on the ocean floor and at mud volcanoes. Thus improved understanding of geyser behavior may yield understanding into other self-organized, intermittent processes in nature that result from localized input of energy and mass.
Despite two centuries of scientific study, explanations for geysering phenomena are limited or lacking. This project will integrate field measurements, laboratory studies, and numerical simulations of multiphase flow in geyser systems to address the following basic questions about the geysering process: Why are geysers so rare? How does conduit plumbing affect eruption initiation and the interval between eruptions? Why and how do geysers interact with each other? Which external processes (e.g., tides, variations in barometric pressure, temperature variations, wind speed, earthquakes) and internal dynamics (e.g., duration of preceding eruption, plumbing geometry) influence the interval between and duration of eruptions? Answers to these questions may offer new insight into triggered seismicity, hydrothermal explosions, and volcanic eruptions. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/88804
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Michael Manga. ABR: Field, Laboratory, and Numerical Studies of Geyser Eruptions. 2017-01-01.
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