EcoService Models Library (ESML)
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Variables Details
: (EM-892)
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EM Identity and Description
EM-892 | |
Document Author
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McKane |
Document Year
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Variable General Info
Slope intercept of linear regression correlating log(octanol-water partition coefficient) to carbon normalized sorption coefficient ?Comment:This variable is a constant determined by the class variable; Contaminant. This requires user input of published empirical regression parameters describing the relationship between KOW and KOC. Contaminant-specific regression parameters for calculating KOC can often be applied to chemically similar contaminants, with the caveat that soil organic matter concentrations and mineralogy are within the range of experimental conditions for which the regression was developed (Piwoni and Banerjee 1989; Ho et al. 2005). |
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Variable ID
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22021 |
Not reported | |
Qualitative-Quantitative
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Quantitative (Cardinal Only) |
Cardinal-Ordinal
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Cardinal |
unitless |
Variable Typology
Slope intercept of linear regression correlating log(octanol-water partition coefficient) to carbon normalized sorption coefficient ?Comment:This variable is a constant determined by the class variable; Contaminant. This requires user input of published empirical regression parameters describing the relationship between KOW and KOC. Contaminant-specific regression parameters for calculating KOC can often be applied to chemically similar contaminants, with the caveat that soil organic matter concentrations and mineralogy are within the range of experimental conditions for which the regression was developed (Piwoni and Banerjee 1989; Ho et al. 2005). |
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Predictor-Intermediate-Response
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Predictor |
Predictor Variable Type
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Constant or Parameter |
Response Variable Type
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Not applicable |
Data Source/Type
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Not applicable |
Variable Classification Hierarchy
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4. Human-Produced Stressor or Enhancer of Ecosystem Goods and Services Production |
--Human-caused release, presence or characteristics of polluting substances |
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----Other, multiple, unspecified or unclear |
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Variable Spatial Characteristics
Slope intercept of linear regression correlating log(octanol-water partition coefficient) to carbon normalized sorption coefficient ?Comment:This variable is a constant determined by the class variable; Contaminant. This requires user input of published empirical regression parameters describing the relationship between KOW and KOC. Contaminant-specific regression parameters for calculating KOC can often be applied to chemically similar contaminants, with the caveat that soil organic matter concentrations and mineralogy are within the range of experimental conditions for which the regression was developed (Piwoni and Banerjee 1989; Ho et al. 2005). |
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Spatial Extent Area
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Not recorded for Constant or Parameter Variables |
Spatially Distributed?
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Not recorded for Constant or Parameter Variables |
Observations Spatially Patterned?
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Not recorded for Constant or Parameter Variables |
Spatial Grain Type
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Not recorded for Constant or Paarameter Variables |
Spatial Grain Size
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Not recorded for Constant or Parameter Variables |
Spatial Density
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Not recorded for Constant or Parameter Variables |
EnviroAtlas URL
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Variable Temporal Characteristics
Slope intercept of linear regression correlating log(octanol-water partition coefficient) to carbon normalized sorption coefficient ?Comment:This variable is a constant determined by the class variable; Contaminant. This requires user input of published empirical regression parameters describing the relationship between KOW and KOC. Contaminant-specific regression parameters for calculating KOC can often be applied to chemically similar contaminants, with the caveat that soil organic matter concentrations and mineralogy are within the range of experimental conditions for which the regression was developed (Piwoni and Banerjee 1989; Ho et al. 2005). |
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Temporal Extent
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Not recorded for Constant or Parameter Variables |
Temporally Distributed?
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Not recorded for Constant or Parameter Variables |
Regular Temporal Grain?
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Not recorded for Constant or Parameter Variables |
Temporal Grain Size Value
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Not recorded for Constant or Parameter Variables |
Temporal Grain Size Units
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Not recorded for Constant or Parameter Variables |
Temporal Density
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Not recorded for Constant or Parameter Variables |
Variable Values
Slope intercept of linear regression correlating log(octanol-water partition coefficient) to carbon normalized sorption coefficient ?Comment:This variable is a constant determined by the class variable; Contaminant. This requires user input of published empirical regression parameters describing the relationship between KOW and KOC. Contaminant-specific regression parameters for calculating KOC can often be applied to chemically similar contaminants, with the caveat that soil organic matter concentrations and mineralogy are within the range of experimental conditions for which the regression was developed (Piwoni and Banerjee 1989; Ho et al. 2005). |
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Not applicable | |
Min Value
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Not applicable |
Max Value
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Not applicable |
Other Value Type
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Not applicable |
Other Value
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Not applicable |
Variable Variability and Sensitivity
Slope intercept of linear regression correlating log(octanol-water partition coefficient) to carbon normalized sorption coefficient ?Comment:This variable is a constant determined by the class variable; Contaminant. This requires user input of published empirical regression parameters describing the relationship between KOW and KOC. Contaminant-specific regression parameters for calculating KOC can often be applied to chemically similar contaminants, with the caveat that soil organic matter concentrations and mineralogy are within the range of experimental conditions for which the regression was developed (Piwoni and Banerjee 1989; Ho et al. 2005). |
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Variability Expression Given?
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Not recorded for Constant or Parameter Variables |
Variability Metric
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None |
Variability Value
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None |
Variability Units
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None |
Resampling Used?
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Not recorded for Constant or Parameter Variables |
Variability Expression Used in Modeling?
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Not recorded for Constant or Parameter Variables |
Variable Operational Validation (Response Variables only)
Variable ID
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Validated?
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Validation Approach (within, between, etc.)
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Validation Quality (Qual/Quant)
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Validation Method (Stat/Deviance)
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Validation Metric
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Validation Value
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Validation Units
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Use of Measured Response Data
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