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: (EM-897)
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EM-897: An empirical model to estimate the propagation of random breaking and nonbreaking waves over vegetation fields
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EM Identity and Description
| EM-897 | |
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Document Author
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Mendez, F. J. and I. J. Losada |
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Document Year
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2004 |
Variable General Info
Drag coefficient ?Comment:Variable value is constant with respect to class variable; Plant species. Value also varies with multiple runs entered for this model. |
Plant area per unit height ?Comment:Plant area normal to wave energy. Variable value is constant with respect to class variable; Plant species. |
Plant density |
Plant height (mean) ?Comment:Variable value is constant with respect to class variable; Plant species. |
Slope ?Comment:Flat bottom for artificial plant field. |
Water depth (at initial wave set-up) | Wave period (peak) | Width of vegetation field | |
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Variable ID
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22137 | 22138 | 22144 | 22139 | 22141 | 22140 | 22143 | 22147 |
| DC | bv | N | dv | m | h0 | Tp | 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
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Cardinal | Cardinal | Cardinal | Cardinal | Cardinal | Cardinal | Cardinal | Cardinal |
| unitless | m | no. m^-2 | m | unitless | m | s | m |
Variable Typology
Drag coefficient ?Comment:Variable value is constant with respect to class variable; Plant species. Value also varies with multiple runs entered for this model. |
Plant area per unit height ?Comment:Plant area normal to wave energy. Variable value is constant with respect to class variable; Plant species. |
Plant density |
Plant height (mean) ?Comment:Variable value is constant with respect to class variable; Plant species. |
Slope ?Comment:Flat bottom for artificial plant field. |
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
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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
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Local field/Lab data (e.g., particular to the EM study) | Local field/Lab data (e.g., particular to the EM study) | Local field/Lab data (e.g., particular to the EM study) | Local field/Lab data (e.g., particular to the EM study) | Local field/Lab data (e.g., particular to the EM study) | Local field/Lab data (e.g., particular to the EM study) | 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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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:Variable value is constant with respect to class variable; Plant species. Value also varies with multiple runs entered for this model. |
Plant area per unit height ?Comment:Plant area normal to wave energy. Variable value is constant with respect to class variable; Plant species. |
Plant density |
Plant height (mean) ?Comment:Variable value is constant with respect to class variable; Plant species. |
Slope ?Comment:Flat bottom for artificial plant field. |
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?
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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
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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:Variable value is constant with respect to class variable; Plant species. Value also varies with multiple runs entered for this model. |
Plant area per unit height ?Comment:Plant area normal to wave energy. Variable value is constant with respect to class variable; Plant species. |
Plant density |
Plant height (mean) ?Comment:Variable value is constant with respect to class variable; Plant species. |
Slope ?Comment:Flat bottom for artificial plant field. |
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
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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:Variable value is constant with respect to class variable; Plant species. Value also varies with multiple runs entered for this model. |
Plant area per unit height ?Comment:Plant area normal to wave energy. Variable value is constant with respect to class variable; Plant species. |
Plant density |
Plant height (mean) ?Comment:Variable value is constant with respect to class variable; Plant species. |
Slope ?Comment:Flat bottom for artificial plant field. |
Water depth (at initial wave set-up) | Wave period (peak) | Width of vegetation field | |
| Not applicable | Not applicable | Not applicable | Not reported | Not applicable | m | s | Not applicable | |
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Min Value
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Not applicable | Not applicable | Not applicable | Not reported | Not applicable | 0.4 | 1.26 | Not applicable |
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Max Value
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Not applicable | Not applicable | Not applicable | Not reported | Not applicable | 1.0 | 4.42 | Not applicable |
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Other Value Type
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Single Observation or Parameter Value | Single Observation or Parameter Value | Single Observation or Parameter Value | Mean | Single Observation or Parameter Value | Single Observation or Parameter Value | Single Observation or Parameter Value | Single Observation or Parameter Value |
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Other Value
variable.detail.otherEstHelp
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Value varies by run; see runs to view values | 0.025 | 1,200 | 0.2 | 0 | Value varies by run; view runs to see values | Value varies by run; view runs to see values | 9.3 |
Variable Variability and Sensitivity
Drag coefficient ?Comment:Variable value is constant with respect to class variable; Plant species. Value also varies with multiple runs entered for this model. |
Plant area per unit height ?Comment:Plant area normal to wave energy. Variable value is constant with respect to class variable; Plant species. |
Plant density |
Plant height (mean) ?Comment:Variable value is constant with respect to class variable; Plant species. |
Slope ?Comment:Flat bottom for artificial plant field. |
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?
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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?
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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
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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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