Item talk:Q336588

{

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   "@type": "CreativeWork",
   "name": "SHARP - A quasi-three-dimensional, numerical finite-difference model to simulate freshwater and saltwater flow separated by a sharp interface in layered coastal aquifer systems",
   "description": [
     {
       "@type": "TextObject",
       "additionalType": "description",
       "abstract": "SHARP is a quasi-three-dimensional, numerical model that solves finite-difference approximations of the equations for coupled freshwater and saltwater flow separated by a sharp interface in layered coastal aquifer systems.  The model is quasi-three dimensional because each aquifer is represented by a layer in which flow is assumed to be horizontal."
     },
     {
       "@type": "TextObject",
       "additionalType": "short description",
       "abstract": "Model item published in 1990 sourced from the USGS Model Catalog"
     }
   ],
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       "name": "1990",
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       "value": "+1990-09-30T00:00:00Z"
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       "alternateName": "author",
       "name": "Hedeff I Essaid",
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       "value": "Q45979",
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       "name": "hydrology",
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       "value": "Q158992",
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       "name": "groundwater",
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       "name": "10.3133/wri904130",
       "propertyID": "P218",
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