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Variables Details
: (EM-414)
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EM Identity and Description
| EM-414 | |
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Document Author
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Ted R. Angradi, Mark S. Pearson, David W. Bolgrien, Brent J. Bellinger, Matthew A. Starry, Carol Reschke |
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Document Year
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2013 |
Variable General Info
| Bed slope | Depth (water) | Directional fetch distance | Directional mean monthly wind velocity | Directional percent frequency (wind) | Fractal dimension (bed) | Lag SAV presence/absence | |
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Variable ID
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8584 | 8585 | 8589 | 8588 | 8793 | 8586 | 8587 |
| Not reported | Not reported | Not reported | Not reported | not reported |
FD ?Comment:BH: Mentioned throughout the complimentary material. |
Not reported | |
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Qualitative-Quantitative
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Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Qualitative (Class, Rating or Ranking) |
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Cardinal-Ordinal
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Cardinal | Cardinal | Cardinal | Cardinal | Cardinal | Cardinal | Non-Ordinal |
| % | m | km | Not reported | % | unitless | Not applicable |
Variable Typology
| Bed slope | Depth (water) | Directional fetch distance | Directional mean monthly wind velocity | Directional percent frequency (wind) | Fractal dimension (bed) | Lag SAV presence/absence | |
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Predictor-Intermediate-Response
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Predictor |
Predictor |
Predictor |
Predictor |
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 |
Time- or Space-varying Variable |
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 | Not applicable | 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) | Local field/Lab data (e.g., particular to the EM study) | Local field/Lab data (e.g., particular to the EM study) | 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) | Local field/Lab data (e.g., particular to the EM study) |
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Variable Classification Hierarchy
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2. Land Surface (or Water Body) Cover, Use, Substrate, or Metric |
2. Land Surface (or Water Body) Cover, Use, Substrate, or Metric |
N. Not classified |
5. Ecosystem Attributes and Potential Supply of Ecosystem Goods and Services |
5. Ecosystem Attributes and Potential Supply of Ecosystem Goods and Services |
N. Not classified |
5. Ecosystem Attributes and Potential Supply of Ecosystem Goods and Services |
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--Geographic position, horizontal or vertical |
--Geographic position, horizontal or vertical |
--Physical/chemical characteristics of nonliving ecosystem components |
--Physical/chemical characteristics of nonliving ecosystem components |
--Biological characteristics, processes or requirements of living ecosystem components |
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----Slope, roughness, ruggedness |
----Elevation, altitude, bathymetry |
----Physical/chemical characteristics of air, meteorology and precipitation |
----Physical/chemical characteristics of air, meteorology and precipitation |
----Biological characteristics, processes or requirements of flora and fungi |
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------Meteorology data and parameters (including precipitation) |
------Meteorology data and parameters (including precipitation) |
------Submerged and emergent aquatic vegetation |
Variable Spatial Characteristics
| Bed slope | Depth (water) | Directional fetch distance | Directional mean monthly wind velocity | Directional percent frequency (wind) | Fractal dimension (bed) | Lag SAV presence/absence | |
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Spatial Extent Area
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10-100 km^2 | 10-100 km^2 | 10-100 km^2 | 10-100 km^2 | 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 | No | Yes | Yes | Yes |
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Observations Spatially Patterned?
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Yes | No | No | Not applicable | No | No | No |
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Spatial Grain Type
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Area, for pixel or radial feature | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable |
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Spatial Grain Size
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10 m x 10 m | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable |
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Spatial Density
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Not applicable | 23,746 sample points across 3 study areas | 23,746 sample points across 3 study areas | Not applicable | Not reported | 23,746 sample points across study areas | 23,746 sample points across 3 study areas |
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EnviroAtlas URL
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Average Annual Precipitation | Average Annual Precipitation |
Variable Temporal Characteristics
| Bed slope | Depth (water) | Directional fetch distance | Directional mean monthly wind velocity | Directional percent frequency (wind) | Fractal dimension (bed) | Lag SAV presence/absence | |
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Temporal Extent
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2011 | July 2011 - mid-september 2012 | July 2011 - mid-September 2012 | July 2011 - mid-September 2012 | 2011 | July 2011 - mid-September 2012 | July 2011 - mid-September 2012 |
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Temporally Distributed?
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Not applicable | No | Not applicable | Yes | Yes | Not applicable | Not applicable |
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Regular Temporal Grain?
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Not applicable | Not applicable | Not applicable | Yes | Yes | Not applicable | Not applicable |
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Temporal Grain Size Value
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Not applicable | Not applicable | Not applicable | 1 | 1 | Not applicable | Not applicable |
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Temporal Grain Size Units
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Not applicable | Not applicable | Not applicable | hour | hour | Not applicable | Not applicable |
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Temporal Density
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Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable |
Variable Values
| Bed slope | Depth (water) | Directional fetch distance | Directional mean monthly wind velocity | Directional percent frequency (wind) | Fractal dimension (bed) | Lag SAV presence/absence | |
% ?Comment:BH: Pp. 540 of Angradi et al 2013 states "Range in mean cover across the range of bed slope (~ 0 - 30%) was small." I took this as the min and max estimate for the bed slope. |
m ?Comment:BH: Minimum estimate comes from pp. 537 of Angradi et al (2013) - "…the operational depth limit for the hydroacoustic survey was ~ 0.5 m." BH: Maximum estimate comes from pp. 537 of Angradi et al (2013) - "We therefore excluded locations with a mean depth > 2.5 m …" |
km | Not reported | Not reported |
unitless ?Comment:Values are mean values estimated from box plots (Pp. 540 Fig. 3) for the four areas within the SLRE. |
Not applicable | |
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Min Value
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0 | 0.5 | Not reported | Not reported | Not reported | 1.02 | Not applicable |
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Max Value
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30 | 2.5 | 4.5 | Not reported | Not reported | 1.04 | Not applicable |
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Other Value Type
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Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable |
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Other Value
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Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | Not applicable |
Variable Variability and Sensitivity
| Bed slope | Depth (water) | Directional fetch distance | Directional mean monthly wind velocity | Directional percent frequency (wind) | Fractal dimension (bed) | Lag SAV presence/absence | |
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Variability Expression Given?
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No | No | No | No | Not applicable | No | No |
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Variability Metric
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None | None | None | None | None | None | None |
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Variability Value
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None | None | None | None | None | None | None |
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Variability Units
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None | None | None | None | None | None | None |
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Resampling Used?
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Not applicable | Not applicable | Not applicable | Not applicable | 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 | Not applicable | 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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