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Variables Details
: (EM-944)
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EM Identity and Description
| EM-944 | |
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Document Author
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US EPA |
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Document Year
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2021 |
Variable General Info
Nitrogen oxides emission change ?Comment:The pollutant emission is a constant dependent on the class variable: Emission tier category. Customs emissions can be imported into COBRA for each tier category. See the user's manual for details. Emission change can be entered as either percent or as an actual value. |
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Variable ID
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23213 |
| Nox | |
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Qualitative-Quantitative
variable.detail.continuousCategoricalHelp
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Quantitative (Cardinal Only) |
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Cardinal-Ordinal
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Cardinal |
| % |
Variable Typology
Nitrogen oxides emission change ?Comment:The pollutant emission is a constant dependent on the class variable: Emission tier category. Customs emissions can be imported into COBRA for each tier category. See the user's manual for details. Emission change can be entered as either percent or as an actual value. |
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Predictor-Intermediate-Response
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Predictor |
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Predictor Variable Type
variable.detail.displayPredictorVariableTypeHelp
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Constant or Parameter |
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Response Variable Type
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Not applicable |
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Data Source/Type
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Not applicable |
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Variable Classification Hierarchy
variable.detail.vchLevel1Help
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4. Human-Produced Stressor or Enhancer of Ecosystem Goods and Services Production |
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--Human-caused release, presence or characteristics of polluting substances |
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----Release, presence or characteristics of reactive forms of nitrogen in air or water |
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Variable Spatial Characteristics
Nitrogen oxides emission change ?Comment:The pollutant emission is a constant dependent on the class variable: Emission tier category. Customs emissions can be imported into COBRA for each tier category. See the user's manual for details. Emission change can be entered as either percent or as an actual value. |
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Spatial Extent Area
variable.detail.spExtentHelp
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Not recorded for Constant or Parameter Variables |
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Spatially Distributed?
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Not recorded for Constant or Parameter Variables |
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Observations Spatially Patterned?
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Not recorded for Constant or Parameter Variables |
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Spatial Grain Type
variable.detail.spGrainTypeHelp
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Not recorded for Constant or Paarameter Variables |
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Spatial Grain Size
variable.detail.spGrainSizeHelp
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Not recorded for Constant or Parameter Variables |
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Spatial Density
variable.detail.spDensityHelp
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Not recorded for Constant or Parameter Variables |
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EnviroAtlas URL
variable.detail.enviroAtlasURLHelp
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Total Annual Nitrogen Deposition |
Variable Temporal Characteristics
Nitrogen oxides emission change ?Comment:The pollutant emission is a constant dependent on the class variable: Emission tier category. Customs emissions can be imported into COBRA for each tier category. See the user's manual for details. Emission change can be entered as either percent or as an actual value. |
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Temporal Extent
variable.detail.tempExtentHelp
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Not recorded for Constant or Parameter Variables |
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Temporally Distributed?
variable.detail.tempDistributedHelp
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Not recorded for Constant or Parameter Variables |
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Regular Temporal Grain?
variable.detail.regularTempGrainHelp
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Not recorded for Constant or Parameter Variables |
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Temporal Grain Size Value
variable.detail.tempGrainSizeValHelp
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Not recorded for Constant or Parameter Variables |
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Temporal Grain Size Units
variable.detail.tempGrainSizeUnitHelp
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Not recorded for Constant or Parameter Variables |
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Temporal Density
variable.detail.tempDensityHelp
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Not recorded for Constant or Parameter Variables |
Variable Values
Nitrogen oxides emission change ?Comment:The pollutant emission is a constant dependent on the class variable: Emission tier category. Customs emissions can be imported into COBRA for each tier category. See the user's manual for details. Emission change can be entered as either percent or as an actual value. |
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| Not applicable | |
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Min Value
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Not applicable |
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Max Value
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Not applicable |
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Other Value Type
variable.detail.natureOtherEstHelp
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Not applicable |
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Other Value
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Not applicable |
Variable Variability and Sensitivity
Nitrogen oxides emission change ?Comment:The pollutant emission is a constant dependent on the class variable: Emission tier category. Customs emissions can be imported into COBRA for each tier category. See the user's manual for details. Emission change can be entered as either percent or as an actual value. |
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Variability Expression Given?
variable.detail.variabilityExpHelp
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Not recorded for Constant or Parameter Variables |
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Variability Metric
variable.detail.variabilityMetricHelp
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None |
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Variability Value
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None |
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Variability Units
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None |
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Resampling Used?
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Not recorded for Constant or Parameter Variables |
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Variability Expression Used in Modeling?
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Not recorded for Constant or Parameter Variables |
Variable Operational Validation (Response Variables only)
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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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