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Variables Details
: (EM-878)
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EM Identity and Description
| EM-878 | |
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Document Author
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Branas, C. C., R. A. Cheney, J. M. MacDonald, V. W. Tam, T. D. Jackson, and T. R. Ten Havey |
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Document Year
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2011 |
Variable General Info
Vacant lots ?Comment:A master database of 54,132 vacant lots present in Philadelphia from 1999 to 2008 was assembled from the Philadelphia Bureau of Revision of Taxes, the Philadelphia Department of Licenses and Inspections, and US Postal Service records. This databasewas separated into lots greened by PHS and those not greened for selection as controls. |
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Variable ID
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20787 |
| Not reported | |
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Qualitative-Quantitative
variable.detail.continuousCategoricalHelp
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Qualitative (Class, Rating or Ranking) |
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Cardinal-Ordinal
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Non-Ordinal |
| Not applicable |
Variable Typology
Vacant lots ?Comment:A master database of 54,132 vacant lots present in Philadelphia from 1999 to 2008 was assembled from the Philadelphia Bureau of Revision of Taxes, the Philadelphia Department of Licenses and Inspections, and US Postal Service records. This databasewas separated into lots greened by PHS and those not greened for selection as controls. |
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Predictor-Intermediate-Response
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Predictor |
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Predictor Variable Type
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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
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Map or database (e.g., wide coverage, wide availability, measured or modeled) |
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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
Vacant lots ?Comment:A master database of 54,132 vacant lots present in Philadelphia from 1999 to 2008 was assembled from the Philadelphia Bureau of Revision of Taxes, the Philadelphia Department of Licenses and Inspections, and US Postal Service records. This databasewas separated into lots greened by PHS and those not greened for selection as controls. |
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Spatial Extent Area
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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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Urban vacant lot |
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Spatial Density
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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
Vacant lots ?Comment:A master database of 54,132 vacant lots present in Philadelphia from 1999 to 2008 was assembled from the Philadelphia Bureau of Revision of Taxes, the Philadelphia Department of Licenses and Inspections, and US Postal Service records. This databasewas separated into lots greened by PHS and those not greened for selection as controls. |
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Temporal Extent
variable.detail.tempExtentHelp
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1999-2008 |
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Temporally Distributed?
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Not applicable |
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Regular Temporal Grain?
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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
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Not applicable |
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Temporal Density
variable.detail.tempDensityHelp
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Not applicable |
Variable Values
Vacant lots ?Comment:A master database of 54,132 vacant lots present in Philadelphia from 1999 to 2008 was assembled from the Philadelphia Bureau of Revision of Taxes, the Philadelphia Department of Licenses and Inspections, and US Postal Service records. This databasewas separated into lots greened by PHS and those not greened for selection as controls. |
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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
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Not applicable |
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Other Value
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Not applicable |
Variable Variability and Sensitivity
Vacant lots ?Comment:A master database of 54,132 vacant lots present in Philadelphia from 1999 to 2008 was assembled from the Philadelphia Bureau of Revision of Taxes, the Philadelphia Department of Licenses and Inspections, and US Postal Service records. This databasewas separated into lots greened by PHS and those not greened for selection as controls. |
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Variability Expression Given?
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Not applicable |
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Variability Metric
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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 applicable |
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Variability Expression Used in Modeling?
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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
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