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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
Ungreened vacant lots (paired controls) ?Comment:Vacant lots were defined as abandoned parcels of open land with no buildings on them; they were a subset of all vacant properties, many of which contained buildings and other structures. Vacant lots eligible to serve as controls included only those that had never been greened from 1999 to 2008 but could have been chosen by the PHS for greening. |
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Variable ID
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20789 |
| Not reported | |
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Qualitative-Quantitative
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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
Ungreened vacant lots (paired controls) ?Comment:Vacant lots were defined as abandoned parcels of open land with no buildings on them; they were a subset of all vacant properties, many of which contained buildings and other structures. Vacant lots eligible to serve as controls included only those that had never been greened from 1999 to 2008 but could have been chosen by the PHS for greening. |
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Predictor-Intermediate-Response
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Predictor |
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Predictor Variable Type
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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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Map or database (e.g., wide coverage, wide availability, measured or modeled) |
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Variable Classification Hierarchy
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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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----Developed and urban land cover |
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------Urban |
Variable Spatial Characteristics
Ungreened vacant lots (paired controls) ?Comment:Vacant lots were defined as abandoned parcels of open land with no buildings on them; they were a subset of all vacant properties, many of which contained buildings and other structures. Vacant lots eligible to serve as controls included only those that had never been greened from 1999 to 2008 but could have been chosen by the PHS for greening. |
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Spatial Extent Area
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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
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Not recorded for Constant or Paarameter Variables |
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Spatial Grain Size
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Not recorded for Constant or Parameter Variables |
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Spatial Density
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Not recorded for Constant or Parameter Variables |
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EnviroAtlas URL
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GAP Ecological Systems |
Variable Temporal Characteristics
Ungreened vacant lots (paired controls) ?Comment:Vacant lots were defined as abandoned parcels of open land with no buildings on them; they were a subset of all vacant properties, many of which contained buildings and other structures. Vacant lots eligible to serve as controls included only those that had never been greened from 1999 to 2008 but could have been chosen by the PHS for greening. |
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Temporal Extent
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Not recorded for Constant or Parameter Variables |
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Temporally Distributed?
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Not recorded for Constant or Parameter Variables |
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Regular Temporal Grain?
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Not recorded for Constant or Parameter Variables |
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Temporal Grain Size Value
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Not recorded for Constant or Parameter Variables |
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Temporal Grain Size Units
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Not recorded for Constant or Parameter Variables |
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Temporal Density
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Not recorded for Constant or Parameter Variables |
Variable Values
Ungreened vacant lots (paired controls) ?Comment:Vacant lots were defined as abandoned parcels of open land with no buildings on them; they were a subset of all vacant properties, many of which contained buildings and other structures. Vacant lots eligible to serve as controls included only those that had never been greened from 1999 to 2008 but could have been chosen by the PHS for greening. |
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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
Ungreened vacant lots (paired controls) ?Comment:Vacant lots were defined as abandoned parcels of open land with no buildings on them; they were a subset of all vacant properties, many of which contained buildings and other structures. Vacant lots eligible to serve as controls included only those that had never been greened from 1999 to 2008 but could have been chosen by the PHS for greening. |
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Variability Expression Given?
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Not recorded for Constant or Parameter Variables |
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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 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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