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GEOPHYSICAL RESEARCH LETTERS, VOL. 30, NO. 18, 1953, doi:10.1029/2003GL017853, 2003

Variability in geyser eruptive timing and its causes: Yellowstone National Park

Stuart Rojstaczer

Center for Hydrologic Science and Division of Earth and Ocean Sciences, Duke University, Durham, North Carolina, USA


D. L. Galloway

U.S. Geological Survey, Sacramento, California, USA


S. E. Ingebritsen

U.S. Geological Survey, Menlo Park, California, USA


D. M. Rubin

U.S. Geological Survey, Santa Cruz, California, USA


Abstract

Field data from Upper Geyser Basin, Yellowstone, indicate that geyser frequency is less sensitive to elastic deformation than might be surmised from a review of the literature. Earth-tide influences are not identifiable in any of the geysers we monitored. Though atmospheric-pressure influences are observed, only long-period variations on the order of 5 mBars or greater seem to influence geyser frequency. Long-distance interconnections between geysers are common and add to the difficulty of identifying strain influences. Additional variations in geyser periodicity may be governed by the internal dynamics of the geysers rather than external influences.

Received 28 May 2003; accepted 11 August 2003; published 25 September 2003.

Index Terms: 8424 Volcanology: Hydrothermal systems (8135); 1878 Hydrology: Water/energy interactions; 1829 Hydrology: Groundwater hydrology.

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Citation: Rojstaczer, S., D. L. Galloway, S. E. Ingebritsen, and D. M. Rubin (2003), Variability in geyser eruptive timing and its causes: Yellowstone National Park, Geophys. Res. Lett., 30(18), 1953, doi:10.1029/2003GL017853.