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Variables Details
: (EM-945)
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EM Identity and Description
| EM-945 | |
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Document Author
variable.detail.emDocumentAuthorHelp
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Yang, J., Q. Yu and P. Gong |
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Document Year
variable.detail.emDocumentYearHelp
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2008 |
Variable General Info
Green roof area ?Comment:Among the 170 green roofs included in the list, detailed information for 71 green roofs was obtained and verified through aerial photographs. The total area of those 71 green roofs is 19.8 ha, 71% of the total area of green roofs in Chicago reported by Taylor (2007). |
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Variable ID
variable.detail.varIdHelp
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23297 |
| L | |
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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 |
| m^2 |
Variable Typology
Green roof area ?Comment:Among the 170 green roofs included in the list, detailed information for 71 green roofs was obtained and verified through aerial photographs. The total area of those 71 green roofs is 19.8 ha, 71% of the total area of green roofs in Chicago reported by Taylor (2007). |
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Predictor-Intermediate-Response
variable.detail.displayVariableTypeHelp
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Predictor |
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Predictor Variable Type
variable.detail.displayPredictorVariableTypeHelp
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Time- or Space-varying Variable |
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Response Variable Type
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Not applicable |
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Data Source/Type
variable.detail.dataTypeHelp
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Local field/Lab data (e.g., particular to the EM study) |
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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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----Created greenspace and open space |
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Variable Spatial Characteristics
Green roof area ?Comment:Among the 170 green roofs included in the list, detailed information for 71 green roofs was obtained and verified through aerial photographs. The total area of those 71 green roofs is 19.8 ha, 71% of the total area of green roofs in Chicago reported by Taylor (2007). |
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Spatial Extent Area
variable.detail.spExtentHelp
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100-1000 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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other (specify), for irregular (e.g., stream reach, lake basin) |
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Spatial Grain Size
variable.detail.spGrainSizeHelp
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plot (green roof) size |
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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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Green Space per Capita |
Variable Temporal Characteristics
Green roof area ?Comment:Among the 170 green roofs included in the list, detailed information for 71 green roofs was obtained and verified through aerial photographs. The total area of those 71 green roofs is 19.8 ha, 71% of the total area of green roofs in Chicago reported by Taylor (2007). |
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Temporal Extent
variable.detail.tempExtentHelp
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2007 |
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Temporally Distributed?
variable.detail.tempDistributedHelp
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No |
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Regular Temporal Grain?
variable.detail.regularTempGrainHelp
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Not applicable |
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Temporal Grain Size Value
variable.detail.tempGrainSizeValHelp
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Not applicable |
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Temporal Grain Size Units
variable.detail.tempGrainSizeUnitHelp
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Not applicable |
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Temporal Density
variable.detail.tempDensityHelp
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Not applicable |
Variable Values
Green roof area ?Comment:Among the 170 green roofs included in the list, detailed information for 71 green roofs was obtained and verified through aerial photographs. The total area of those 71 green roofs is 19.8 ha, 71% of the total area of green roofs in Chicago reported by Taylor (2007). |
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| m^2 | |
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Min Value
variable.detail.minEstHelp
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Not reported |
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Max Value
variable.detail.estHelp
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99,983 |
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Other Value Type
variable.detail.natureOtherEstHelp
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Reported total (units adjusted) |
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Other Value
variable.detail.otherEstHelp
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19.8 |
Variable Variability and Sensitivity
Green roof area ?Comment:Among the 170 green roofs included in the list, detailed information for 71 green roofs was obtained and verified through aerial photographs. The total area of those 71 green roofs is 19.8 ha, 71% of the total area of green roofs in Chicago reported by Taylor (2007). |
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Variability Expression Given?
variable.detail.variabilityExpHelp
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No |
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Variability Metric
variable.detail.variabilityMetricHelp
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None |
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Variability Value
variable.detail.variabilityValueHelp
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None |
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Variability Units
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None |
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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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Not applicable |
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
variable.detail.measuredResponseDataHelp
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