AN EXAMINATION OF SIGNAL PROCESSING METHODS FOR MONITORING UNDISTURBED GEOTHERMAL RESOURCES

J D Leaver, A Watson G Timpany J Ding

Key words: Rotorua, New Zealand
Location: Rotorua, New Zealand; Taupo Volcanic Zone
Conference: Stanford Geothermal Workshop
Year: 2000
Session: Field studies
Language: English

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Abstract

Water level data from a shallow monitor well in the Rotorua geothermal field in New Zealand is used to compare signal processing techniques, namely discrete Fourier transform and wavelet analyses. Characteristic pressure fluctuations are identified over a wide range of frequencies indicative of influences that include tides due to celestial bodies. The techniques used for data analysis provide complimentary information on characteristic fluctuations.

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