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Abstract
A synthetic two‐dimensional model of a horizontally and vertically heterogeneous confined coastal aquifer system, based on the Upper Floridan aquifer in south Florida, USA, subjected to constant recharge and a complex tidal signal was used to generate 15‐minute water‐level data at select locations over a 7‐day simulation period. “Observed” water‐level data were generated by adding noise, representative of typical barometric pressure variations and measurement errors, to 15‐minute data from the synthetic model. Permeability was calibrated using a non‐linear gradient‐based parameter inversion approach with preferred‐value Tikhonov regularization and 1) “observed” water‐level data, 2) harmonic constituent data, or 3) a combination of “observed” water‐level and harmonic constituent data. In all cases, high‐frequency data used in the parameter inversion process were able to characterize broad‐scale heterogeneities; the ability to discern fine‐scale heterogeneity was greater when harmonic constituent data were used. These results suggest that the combined use of highly parameterized‐inversion techniques and high frequency time and/or processed‐harmonic constituent water‐level data could be a useful approach to better characterize aquifer heterogeneities in coastal aquifers influenced by ocean tides.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Use of time series and harmonic constituents of tidal propagation to enhance estimation of coastal aquifer heterogeneity |
| Year Published | 2010 |
| Language | English |
| Publisher | Wechselnde Verlagsorte |
| Contributing office(s) | Florida Water Science Center-Ft. Lauderdale |
| Description | 4 p. |
| Larger Work Type | Book |
| Larger Work Subtype | Conference publication |
| Larger Work Title | SWIM21 – 21st Salt Water Intrusion Meeting Proceedings Book |
| First page | 329 |
| Last page | 332 |
| Conference Title | 21st Salt Water Intrusion Meeting (SWIM21 – AZORES 2010) |
| Conference Location | Azores, Portugal |
| Conference Date | June 21-26, 2010 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |