{
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"name": "Use of time series and harmonic constituents of tidal propagation to enhance estimation of coastal aquifer heterogeneity",
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"value": "70158669",
"url": "https://pubs.usgs.gov/publication/70158669"
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"value": 70158669
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"inLanguage": "en",
"datePublished": "2010",
"dateModified": "2021-10-28",
"abstract": "A synthetic two\u2010dimensional 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\u2010minute water\u2010level data at select locations over a 7\u2010day simulation period.\u00a0\u00a0 \u201cObserved\u201d water\u2010level data were generated by adding noise, representative of typical barometric pressure variations and measurement errors, to 15\u2010minute data from the synthetic model. Permeability was calibrated using a non\u2010linear gradient\u2010based parameter inversion approach with preferred\u2010value Tikhonov regularization and 1) \u201cobserved\u201d water\u2010level data, 2) harmonic constituent data, or 3) a combination of \u201cobserved\u201d water\u2010level and harmonic constituent data.\u00a0 \u00a0 In all cases, high\u2010frequency data used in the parameter inversion process were able to characterize broad\u2010scale heterogeneities; the ability to discern fine\u2010scale heterogeneity was greater when harmonic constituent data were used.\u00a0\u00a0These results suggest that the combined use of highly parameterized\u2010inversion techniques and high frequency time and/or processed\u2010harmonic constituent water\u2010level data could be a useful approach to better characterize aquifer heterogeneities in coastal aquifers influenced by ocean tides.",
"description": "4 p.",
"publisher": {
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"name": "Wechselnde Verlagsorte"
},
"author": [
{
"@type": "Person",
"name": "Langevin, Christian D. langevin@usgs.gov",
"givenName": "Christian D.",
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"value": "0000-0001-5610-9759",
"url": "https://orcid.org/0000-0001-5610-9759"
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"name": "WMA - Integrated Modeling and Prediction Division",
"url": "https://www.usgs.gov/mission-areas/water-resources"
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},
{
"@type": "Person",
"name": "Hughes, Joseph D. jdhughes@usgs.gov",
"givenName": "Joseph D.",
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"email": "jdhughes@usgs.gov",
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"name": "WMA - Integrated Modeling and Prediction Division",
"url": "https://www.usgs.gov/mission-areas/water-resources"
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"@type": "Person",
"name": "White, Jeremy T. jwhite@usgs.gov",
"givenName": "Jeremy T.",
"familyName": "White",
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"name": "FLWSC-Tampa",
"url": "https://www.usgs.gov/centers/car-fl-water"
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"name": "Florida Water Science Center-Ft. Lauderdale",
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