Wavelet and cross-wavelet analysis of groundwater quality signals of saltwater intruded coastal aquifers

Sreekanth, J., and Datta, Bithin (2011) Wavelet and cross-wavelet analysis of groundwater quality signals of saltwater intruded coastal aquifers. In: Proceedings of the 2011 World Environmental and Water Resources Congress (414), pp. 846-853. From: World Environmental and Water Resources Congress 2011: Bearing Knowledge for Sustainability, 22-26 May 2011, Palm Springs, CA, USA.

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Abstract

Monitoring wells are used to collect temporal data on the groundwater table and the salinities. This study uses wavelet analysis for analysing the temporal patterns of groundwater table and salinity levels for a saltwater intruded coastal aquifer. The time series of groundwater table and salinity levels are analysed using continuous wavelet transforms (CWT). Wavelet analysis is able to detect detailed temporal patterns in the time series of groundwater data. These analyses help in improving the water quality monitoring, modeling and determining pumping strategies for contaminated aquifers. Further, phase relationship between the two time series of groundwater table and the salinity levels is analysed using Cross Wavelet Transform (XWT). This analysis is able to provide information on the causative effect of groundwater table on the salinity concentrations along with their phase relationship in time‐frequency domain.

Item ID: 21194
Item Type: Conference Item (Refereed Research Paper - E1)
Keywords: groundwater quality, salt water intrusion, aquifers
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ISBN: 978-0-7844-1173-5
Date Deposited: 21 May 2012 23:11
FoR Codes: 09 ENGINEERING > 0905 Civil Engineering > 090509 Water Resources Engineering @ 50%
09 ENGINEERING > 0907 Environmental Engineering > 090799 Environmental Engineering not elsewhere classified @ 50%
SEO Codes: 96 ENVIRONMENT > 9609 Land and Water Management > 960999 Land and Water Management of Environments not elsewhere classified @ 100%
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