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Variables Details
: (EM-896)
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EM Identity and Description
| EM-896 | |
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Document Author
variable.detail.emDocumentAuthorHelp
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Mendez, F. J. and I. J. Losada |
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Document Year
variable.detail.emDocumentYearHelp
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2004 |
Variable General Info
Drag coefficient ?Comment:The value for this variable is a constant with respect to the class variable: Plant species. "It is clear that the success of this model as a predictive tool requires the knowledge of the bulk drag coefficient. The value of this parameter depends on the flow around the plants and the plant motion, which are functions of the hydrodynamic and biomechanical characteristics. However, the correct modelling of swaying motion is far from trivial not only for the difficulty of solving a nonlinear dynamic oscillator with n degrees of freedom, but also for the complexity and randomness of geometric and biomechanical properties of the plant" |
Plant area per unit height ?Comment:For each vegetation stand normal to the wave velocity direction. The value for this variable is a constant with respect to the class variable: Plant species. |
Plant density ?Comment:Number of vegetation stands per unit horizontal area. |
Plant height (mean) ?Comment:The value for this variable is a constant with respect to the class variable: Plant species. |
Slope | Water depth (at initial wave set-up) | Wave period (peak) | Width of vegetation field | |
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Variable ID
variable.detail.varIdHelp
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22123 | 22121 | 22122 | 22120 | 22133 | 22125 | 22134 | 22227 |
| CD | bv | N | ah | m | hsub<0> | kp | b | |
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Qualitative-Quantitative
variable.detail.continuousCategoricalHelp
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Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) |
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Cardinal-Ordinal
variable.detail.cardinalOrdinalHelp
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Cardinal | Cardinal | Cardinal | Cardinal | Cardinal | Cardinal | Cardinal | Cardinal |
| unitless | m | No. m^-2 | m |
unitless ?Comment:ratio |
m | No. m^-1 | m |
Variable Typology
Drag coefficient ?Comment:The value for this variable is a constant with respect to the class variable: Plant species. "It is clear that the success of this model as a predictive tool requires the knowledge of the bulk drag coefficient. The value of this parameter depends on the flow around the plants and the plant motion, which are functions of the hydrodynamic and biomechanical characteristics. However, the correct modelling of swaying motion is far from trivial not only for the difficulty of solving a nonlinear dynamic oscillator with n degrees of freedom, but also for the complexity and randomness of geometric and biomechanical properties of the plant" |
Plant area per unit height ?Comment:For each vegetation stand normal to the wave velocity direction. The value for this variable is a constant with respect to the class variable: Plant species. |
Plant density ?Comment:Number of vegetation stands per unit horizontal area. |
Plant height (mean) ?Comment:The value for this variable is a constant with respect to the class variable: Plant species. |
Slope | Water depth (at initial wave set-up) | Wave period (peak) | Width of vegetation field | |
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Predictor-Intermediate-Response
variable.detail.displayVariableTypeHelp
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Predictor |
Predictor |
Predictor |
Predictor |
Predictor |
Predictor |
Predictor |
Predictor |
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Predictor Variable Type
variable.detail.displayPredictorVariableTypeHelp
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Constant or Parameter | Constant or Parameter | Constant or Parameter | Constant or Parameter | Constant or Parameter | Constant or Parameter | Constant or Parameter | Constant or Parameter |
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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 | Not applicable |
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Data Source/Type
variable.detail.dataTypeHelp
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Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable |
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Variable Classification Hierarchy
variable.detail.vchLevel1Help
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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 |
5. Ecosystem Attributes and Potential Supply of Ecosystem Goods and Services |
2. Land Surface (or Water Body) Cover, Use, Substrate, or Metric |
2. Land Surface (or Water Body) Cover, Use, Substrate, or Metric |
5. Ecosystem Attributes and Potential Supply of Ecosystem Goods and Services |
2. Land Surface (or Water Body) Cover, Use, Substrate, or Metric |
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--Biological characteristics, processes or requirements of living ecosystem components |
--Biological characteristics, processes or requirements of living ecosystem components |
--Biological characteristics, processes or requirements of living ecosystem components |
--Geographic position, horizontal or vertical |
--Geographic position, horizontal or vertical |
--Physical/chemical characteristics of nonliving ecosystem components |
--Spatial resolution or extent of cell, pixel, polygon |
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----Biological characteristics, processes or requirements of flora and fungi |
----Biological characteristics, processes or requirements of flora and fungi |
----Biological characteristics, processes or requirements of flora and fungi |
----Slope, roughness, ruggedness |
----Elevation, altitude, bathymetry |
----Physical/chemical characteristics of water |
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------Submerged and emergent aquatic vegetation |
------Cover characteristics (canopy cover, herbaceous cover or leaf area) |
------Submerged and emergent aquatic vegetation |
------Water volume or flow in coastal aquatic systems |
Variable Spatial Characteristics
Drag coefficient ?Comment:The value for this variable is a constant with respect to the class variable: Plant species. "It is clear that the success of this model as a predictive tool requires the knowledge of the bulk drag coefficient. The value of this parameter depends on the flow around the plants and the plant motion, which are functions of the hydrodynamic and biomechanical characteristics. However, the correct modelling of swaying motion is far from trivial not only for the difficulty of solving a nonlinear dynamic oscillator with n degrees of freedom, but also for the complexity and randomness of geometric and biomechanical properties of the plant" |
Plant area per unit height ?Comment:For each vegetation stand normal to the wave velocity direction. The value for this variable is a constant with respect to the class variable: Plant species. |
Plant density ?Comment:Number of vegetation stands per unit horizontal area. |
Plant height (mean) ?Comment:The value for this variable is a constant with respect to the class variable: Plant species. |
Slope | Water depth (at initial wave set-up) | Wave period (peak) | Width of vegetation field | |
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Spatial Extent Area
variable.detail.spExtentHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
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Spatially Distributed?
variable.detail.spDistributedHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
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Observations Spatially Patterned?
variable.detail.regularSpGrainHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
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Spatial Grain Type
variable.detail.spGrainTypeHelp
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Not recorded for Constant or Paarameter Variables | Not recorded for Constant or Paarameter Variables | Not recorded for Constant or Paarameter Variables | Not recorded for Constant or Paarameter Variables | Not recorded for Constant or Paarameter Variables | Not recorded for Constant or Paarameter Variables | Not recorded for Constant or Paarameter Variables | Not recorded for Constant or Paarameter Variables |
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Spatial Grain Size
variable.detail.spGrainSizeHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
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Spatial Density
variable.detail.spDensityHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
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EnviroAtlas URL
variable.detail.enviroAtlasURLHelp
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National Hydrography Dataset Plus (NHD PlusV2) |
Variable Temporal Characteristics
Drag coefficient ?Comment:The value for this variable is a constant with respect to the class variable: Plant species. "It is clear that the success of this model as a predictive tool requires the knowledge of the bulk drag coefficient. The value of this parameter depends on the flow around the plants and the plant motion, which are functions of the hydrodynamic and biomechanical characteristics. However, the correct modelling of swaying motion is far from trivial not only for the difficulty of solving a nonlinear dynamic oscillator with n degrees of freedom, but also for the complexity and randomness of geometric and biomechanical properties of the plant" |
Plant area per unit height ?Comment:For each vegetation stand normal to the wave velocity direction. The value for this variable is a constant with respect to the class variable: Plant species. |
Plant density ?Comment:Number of vegetation stands per unit horizontal area. |
Plant height (mean) ?Comment:The value for this variable is a constant with respect to the class variable: Plant species. |
Slope | Water depth (at initial wave set-up) | Wave period (peak) | Width of vegetation field | |
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Temporal Extent
variable.detail.tempExtentHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
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Temporally Distributed?
variable.detail.tempDistributedHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
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Regular Temporal Grain?
variable.detail.regularTempGrainHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
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Temporal Grain Size Value
variable.detail.tempGrainSizeValHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
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Temporal Grain Size Units
variable.detail.tempGrainSizeUnitHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
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Temporal Density
variable.detail.tempDensityHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
Variable Values
Drag coefficient ?Comment:The value for this variable is a constant with respect to the class variable: Plant species. "It is clear that the success of this model as a predictive tool requires the knowledge of the bulk drag coefficient. The value of this parameter depends on the flow around the plants and the plant motion, which are functions of the hydrodynamic and biomechanical characteristics. However, the correct modelling of swaying motion is far from trivial not only for the difficulty of solving a nonlinear dynamic oscillator with n degrees of freedom, but also for the complexity and randomness of geometric and biomechanical properties of the plant" |
Plant area per unit height ?Comment:For each vegetation stand normal to the wave velocity direction. The value for this variable is a constant with respect to the class variable: Plant species. |
Plant density ?Comment:Number of vegetation stands per unit horizontal area. |
Plant height (mean) ?Comment:The value for this variable is a constant with respect to the class variable: Plant species. |
Slope | Water depth (at initial wave set-up) | Wave period (peak) | Width of vegetation field | |
| Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | |
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Min Value
variable.detail.minEstHelp
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Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable |
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Max Value
variable.detail.estHelp
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Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable |
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Other Value Type
variable.detail.natureOtherEstHelp
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Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable |
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Other Value
variable.detail.otherEstHelp
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Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable |
Variable Variability and Sensitivity
Drag coefficient ?Comment:The value for this variable is a constant with respect to the class variable: Plant species. "It is clear that the success of this model as a predictive tool requires the knowledge of the bulk drag coefficient. The value of this parameter depends on the flow around the plants and the plant motion, which are functions of the hydrodynamic and biomechanical characteristics. However, the correct modelling of swaying motion is far from trivial not only for the difficulty of solving a nonlinear dynamic oscillator with n degrees of freedom, but also for the complexity and randomness of geometric and biomechanical properties of the plant" |
Plant area per unit height ?Comment:For each vegetation stand normal to the wave velocity direction. The value for this variable is a constant with respect to the class variable: Plant species. |
Plant density ?Comment:Number of vegetation stands per unit horizontal area. |
Plant height (mean) ?Comment:The value for this variable is a constant with respect to the class variable: Plant species. |
Slope | Water depth (at initial wave set-up) | Wave period (peak) | Width of vegetation field | |
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Variability Expression Given?
variable.detail.variabilityExpHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
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Variability Metric
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None | None | None | None | None | None | None | None |
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Variability Value
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None | None | None | None | None | None | None | None |
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Variability Units
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None | None | None | None | None | None | None | None |
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Resampling Used?
variable.detail.bootstrappingHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
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Variability Expression Used in Modeling?
variable.detail.variabilityUsedHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
Variable Operational Validation (Response Variables only)
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Variable ID
variable.detail.varIdHelp
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Validated?
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Validation Approach (within, between, etc.)
variable.detail.validationApproachHelp
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Validation Quality (Qual/Quant)
variable.detail.validationQualityHelp
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Validation Method (Stat/Deviance)
variable.detail.validationMethodHelp
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Validation Metric
variable.detail.validationMetricHelp
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Validation Value
variable.detail.validationValHelp
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Validation Units
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Use of Measured Response Data
variable.detail.measuredResponseDataHelp
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