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Variables Details
: (EM-194)
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EM Identity and Description
| EM-194 | |
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Document Author
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Oliver, L. M., Lehrter, J. C. and Fisher, W. S. |
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Document Year
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2011 |
Variable General Info
| Land development intensity index (LDI) | Percent of land use classes in watersheds with a land development intensity index =1.0 | Station depth | |
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Variable ID
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2855 | 2857 | 2856 |
| B_LDI | Not reported | Not reported | |
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Qualitative-Quantitative
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Qualitative (Class, Rating or Ranking) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) |
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Cardinal-Ordinal
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Ordinal | Cardinal | Cardinal |
| Not applicable | % | meters |
Variable Typology
| Land development intensity index (LDI) | Percent of land use classes in watersheds with a land development intensity index =1.0 | Station depth | |
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Predictor-Intermediate-Response
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Predictor |
Predictor |
Predictor |
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Predictor Variable Type
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Time- or Space-varying Variable |
Time- or Space-varying Variable |
Time- or Space-varying Variable |
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Response Variable Type
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Not applicable | Not applicable | 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) | Map or database (e.g., wide coverage, wide availability, measured or modeled) | Local Field/Lab Data (e.g., particular to the EM study) |
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Variable Classification Hierarchy
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4. Human-Produced Stressor or Enhancer of Ecosystem Goods and Services Production |
2. Land Surface (or Water Body) Cover, Use, Substrate, or Metric |
2. Land Surface (or Water Body) Cover, Use, Substrate, or Metric |
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--Human structures (e.g., dams, buildings, armoring, etc.), activities (presence, noise) potentially related to ecological or aesthetic disturbance |
--Land use/land cover type or dominant habitat type |
--Geographic position, horizontal or vertical |
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----Presence of man-made structures (e.g., dams, buildings, armoring, etc.) potentially related to ecological or aesthetic disturbance |
----Developed and urban land cover |
----Elevation, altitude, bathymetry |
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------Other, multiple, unspecified or unclear |
Variable Spatial Characteristics
| Land development intensity index (LDI) | Percent of land use classes in watersheds with a land development intensity index =1.0 | Station depth | |
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Spatial Extent Area
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10-100 km^2 | 10-100 km^2 | 10-100 km^2 |
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Spatially Distributed?
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Yes | Yes | Yes |
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Observations Spatially Patterned?
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No | No | No |
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Spatial Grain Type
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Not applicable | Not applicable | Not applicable |
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Spatial Grain Size
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Not applicable | Not applicable | Not applicable |
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Spatial Density
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12 observations over the extent | 8 observations over the extent | 12 |
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EnviroAtlas URL
variable.detail.enviroAtlasURLHelp
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Variable Temporal Characteristics
| Land development intensity index (LDI) | Percent of land use classes in watersheds with a land development intensity index =1.0 | Station depth | |
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Temporal Extent
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Not applicable | Not applicable | Not applicable |
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Temporally Distributed?
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No | No | No |
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Regular Temporal Grain?
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Not applicable | Not applicable | Not applicable |
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Temporal Grain Size Value
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Not applicable | Not applicable | Not applicable |
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Temporal Grain Size Units
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Not applicable | Not applicable | Not applicable |
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Temporal Density
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Not applicable | Not applicable | Not applicable |
Variable Values
| Land development intensity index (LDI) | Percent of land use classes in watersheds with a land development intensity index =1.0 | Station depth | |
| Not applicable | not applicable | meters | |
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Min Value
variable.detail.minEstHelp
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1.00 | Not reported | 5 |
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Max Value
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8.38 | Not reported | 11.4 |
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Other Value Type
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Median | Single Observation | Mean |
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Other Value
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1.00 | 31.8 | 7.7 |
Variable Variability and Sensitivity
| Land development intensity index (LDI) | Percent of land use classes in watersheds with a land development intensity index =1.0 | Station depth | |
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Variability Expression Given?
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No | No | No |
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Variability Metric
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None | None | None |
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Variability Value
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None | None | None |
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Variability Units
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None | None | None |
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Resampling Used?
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Not applicable | Not applicable | Not applicable |
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Variability Expression Used in Modeling?
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Not applicable | Not applicable | 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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