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Variables Details
: (EM-653)
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EM Identity and Description
| EM-653 | |
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Document Author
variable.detail.emDocumentAuthorHelp
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Cordell H. K., V. Heboyan, F. Santos, J. C. Bergstrom |
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Document Year
variable.detail.emDocumentYearHelp
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2011 |
Variable General Info
Natural log of percent water area ?Comment:Natural log of percent of water area of county i. Annualized water area values in acres are divided with the total number of acres per county to obtain percent water area in county i at year j. |
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Variable ID
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15266 |
| Lnpwater | |
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Qualitative-Quantitative
variable.detail.continuousCategoricalHelp
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Quantitative (Cardinal Only) |
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Cardinal-Ordinal
variable.detail.cardinalOrdinalHelp
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Cardinal |
| Not reported |
Variable Typology
Natural log of percent water area ?Comment:Natural log of percent of water area of county i. Annualized water area values in acres are divided with the total number of acres per county to obtain percent water area in county i at year j. |
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Predictor-Intermediate-Response
variable.detail.displayVariableTypeHelp
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Intermediate (Computed) Variable |
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Predictor Variable Type
variable.detail.displayPredictorVariableTypeHelp
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Not applicable |
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Response Variable Type
variable.detail.resClassHelp
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Not applicable |
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Data Source/Type
variable.detail.dataTypeHelp
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Not applicable |
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Variable Classification Hierarchy
variable.detail.vchLevel1Help
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2. Land Surface (or Water Body) Cover, Use, Substrate, or Metric |
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--Land use/land cover type or dominant habitat type |
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----Water bodies |
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------Other, multiple, unspecified or unclear |
Variable Spatial Characteristics
Natural log of percent water area ?Comment:Natural log of percent of water area of county i. Annualized water area values in acres are divided with the total number of acres per county to obtain percent water area in county i at year j. |
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Spatial Extent Area
variable.detail.spExtentHelp
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>1,000,000 km^2 |
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Spatially Distributed?
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Yes |
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Observations Spatially Patterned?
variable.detail.regularSpGrainHelp
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Yes |
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Spatial Grain Type
variable.detail.spGrainTypeHelp
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map scale, for cartographic feature |
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Spatial Grain Size
variable.detail.spGrainSizeHelp
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varies |
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Spatial Density
variable.detail.spDensityHelp
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Not applicable |
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EnviroAtlas URL
variable.detail.enviroAtlasURLHelp
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Variable Temporal Characteristics
Natural log of percent water area ?Comment:Natural log of percent of water area of county i. Annualized water area values in acres are divided with the total number of acres per county to obtain percent water area in county i at year j. |
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Temporal Extent
variable.detail.tempExtentHelp
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1990-2007 |
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Temporally Distributed?
variable.detail.tempDistributedHelp
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Yes |
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Regular Temporal Grain?
variable.detail.regularTempGrainHelp
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Yes |
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Temporal Grain Size Value
variable.detail.tempGrainSizeValHelp
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1 |
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Temporal Grain Size Units
variable.detail.tempGrainSizeUnitHelp
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Year |
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Temporal Density
variable.detail.tempDensityHelp
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Not applicable |
Variable Values
Natural log of percent water area ?Comment:Natural log of percent of water area of county i. Annualized water area values in acres are divided with the total number of acres per county to obtain percent water area in county i at year j. |
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| Not reported | |
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Min Value
variable.detail.minEstHelp
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-8.00 |
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Max Value
variable.detail.estHelp
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4.51 |
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Other Value Type
variable.detail.natureOtherEstHelp
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Mean |
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Other Value
variable.detail.otherEstHelp
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-0.04 |
Variable Variability and Sensitivity
Natural log of percent water area ?Comment:Natural log of percent of water area of county i. Annualized water area values in acres are divided with the total number of acres per county to obtain percent water area in county i at year j. |
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Variability Expression Given?
variable.detail.variabilityExpHelp
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Yes | |
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Variability Metric
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Variability Value
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Variability Units
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Resampling Used?
variable.detail.bootstrappingHelp
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Not applicable | |
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Variability Expression Used in Modeling?
variable.detail.variabilityUsedHelp
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No |
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)
variable.detail.validationQualityHelp
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Validation Method (Stat/Deviance)
variable.detail.validationMethodHelp
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Validation Metric
variable.detail.validationMetricHelp
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Validation Value
variable.detail.validationValHelp
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Validation Units
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Use of Measured Response Data
variable.detail.measuredResponseDataHelp
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