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Variables Details
: (EM-849)
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EM Identity and Description
| EM-849 | |
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Document Author
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The Natural Capital Project.org |
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Document Year
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Variable General Info
Surge potential ?Comment:Storm surge elevation is a function of wind speed and direction, but also of the amount of time wind blows over relatively shallow areas. In general, the longer the distance between the coastline and the edge of the continental shelf at a given area during a given storm, the higher the storm surge. The model estimates the relative exposure to storm surges by computing the distance from the shore point to the edge of the continental shelf (or to another user-specified bathymetry contour). For hurricanes in the Gulf of Mexico, a better approximation of surge potential than the distance to the continental shelf contour might be the distance between the coastline and the 30 meters depth contour (Irish and Resio 2010). The model computes the surge potential index at each shoreline point ranking from very low exposure (rank=1 for the 0-20 percentile) to very high exposure (rank=5 for the 81-100 percentile). |
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Variable ID
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20131 |
| Not reported | |
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Qualitative-Quantitative
variable.detail.continuousCategoricalHelp
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Qualitative (Class, Rating or Ranking) |
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Cardinal-Ordinal
variable.detail.cardinalOrdinalHelp
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Ordinal |
| Not applicable |
Variable Typology
Surge potential ?Comment:Storm surge elevation is a function of wind speed and direction, but also of the amount of time wind blows over relatively shallow areas. In general, the longer the distance between the coastline and the edge of the continental shelf at a given area during a given storm, the higher the storm surge. The model estimates the relative exposure to storm surges by computing the distance from the shore point to the edge of the continental shelf (or to another user-specified bathymetry contour). For hurricanes in the Gulf of Mexico, a better approximation of surge potential than the distance to the continental shelf contour might be the distance between the coastline and the 30 meters depth contour (Irish and Resio 2010). The model computes the surge potential index at each shoreline point ranking from very low exposure (rank=1 for the 0-20 percentile) to very high exposure (rank=5 for the 81-100 percentile). |
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Predictor-Intermediate-Response
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Intermediate (Computed) Variable |
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Predictor Variable Type
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Not applicable |
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Response Variable Type
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Not applicable |
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Data Source/Type
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Not applicable |
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Variable Classification Hierarchy
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5. Ecosystem Attributes and Potential Supply of Ecosystem Goods and Services |
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--CICES categories: Ecosystem goods and services - or landscape-level indices of suitability to supply EGS |
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----Suitability to supply regulation & maintenance services-Mediation of flows |
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------Flood and storm protection |
Variable Spatial Characteristics
Surge potential ?Comment:Storm surge elevation is a function of wind speed and direction, but also of the amount of time wind blows over relatively shallow areas. In general, the longer the distance between the coastline and the edge of the continental shelf at a given area during a given storm, the higher the storm surge. The model estimates the relative exposure to storm surges by computing the distance from the shore point to the edge of the continental shelf (or to another user-specified bathymetry contour). For hurricanes in the Gulf of Mexico, a better approximation of surge potential than the distance to the continental shelf contour might be the distance between the coastline and the 30 meters depth contour (Irish and Resio 2010). The model computes the surge potential index at each shoreline point ranking from very low exposure (rank=1 for the 0-20 percentile) to very high exposure (rank=5 for the 81-100 percentile). |
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Spatial Extent Area
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Not applicable |
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Spatially Distributed?
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Yes |
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Observations Spatially Patterned?
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Yes |
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Spatial Grain Type
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area, for pixel or radial feature |
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Spatial Grain Size
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user defined |
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Spatial Density
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Not applicable |
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EnviroAtlas URL
variable.detail.enviroAtlasURLHelp
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National Hydrography Dataset Plus (NHD PlusV2) |
Variable Temporal Characteristics
Surge potential ?Comment:Storm surge elevation is a function of wind speed and direction, but also of the amount of time wind blows over relatively shallow areas. In general, the longer the distance between the coastline and the edge of the continental shelf at a given area during a given storm, the higher the storm surge. The model estimates the relative exposure to storm surges by computing the distance from the shore point to the edge of the continental shelf (or to another user-specified bathymetry contour). For hurricanes in the Gulf of Mexico, a better approximation of surge potential than the distance to the continental shelf contour might be the distance between the coastline and the 30 meters depth contour (Irish and Resio 2010). The model computes the surge potential index at each shoreline point ranking from very low exposure (rank=1 for the 0-20 percentile) to very high exposure (rank=5 for the 81-100 percentile). |
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Temporal Extent
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Not applicable |
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Temporally Distributed?
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Not applicable |
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Regular Temporal Grain?
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Not applicable |
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Temporal Grain Size Value
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Not applicable |
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Temporal Grain Size Units
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Not applicable |
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Temporal Density
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Not applicable |
Variable Values
Surge potential ?Comment:Storm surge elevation is a function of wind speed and direction, but also of the amount of time wind blows over relatively shallow areas. In general, the longer the distance between the coastline and the edge of the continental shelf at a given area during a given storm, the higher the storm surge. The model estimates the relative exposure to storm surges by computing the distance from the shore point to the edge of the continental shelf (or to another user-specified bathymetry contour). For hurricanes in the Gulf of Mexico, a better approximation of surge potential than the distance to the continental shelf contour might be the distance between the coastline and the 30 meters depth contour (Irish and Resio 2010). The model computes the surge potential index at each shoreline point ranking from very low exposure (rank=1 for the 0-20 percentile) to very high exposure (rank=5 for the 81-100 percentile). |
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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
Surge potential ?Comment:Storm surge elevation is a function of wind speed and direction, but also of the amount of time wind blows over relatively shallow areas. In general, the longer the distance between the coastline and the edge of the continental shelf at a given area during a given storm, the higher the storm surge. The model estimates the relative exposure to storm surges by computing the distance from the shore point to the edge of the continental shelf (or to another user-specified bathymetry contour). For hurricanes in the Gulf of Mexico, a better approximation of surge potential than the distance to the continental shelf contour might be the distance between the coastline and the 30 meters depth contour (Irish and Resio 2010). The model computes the surge potential index at each shoreline point ranking from very low exposure (rank=1 for the 0-20 percentile) to very high exposure (rank=5 for the 81-100 percentile). |
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Variability Expression Given?
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Not applicable |
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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 applicable |
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Variability Expression Used in Modeling?
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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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