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: (EM-851)
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EM-851: Modeling coastal vulnerability through space and time
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EM Identity and Description
| EM-851 | |
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Document Author
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Hopper T. and M. S. Meixler |
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Document Year
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2016 |
Variable General Info
Wind exposure ?Comment:Wind exposure for shoreline segments was computed by first dividing the 360 degrees compass rose into sixteen equiangular sectors. Then, for each sector, the average wind speed of the highest 10% wind speeds on record in each sector was multiplied by the fetch distance of that sector and by the percent of all wind speeds on record that blow in the direction of that sector. The values for all sectors of a shoreline segment were then summed and re-ranked as a percentile. |
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Variable ID
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20152 |
| Not reported | |
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Qualitative-Quantitative
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Qualitative (Class, Rating or Ranking) |
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Cardinal-Ordinal
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Ordinal |
| Not applicable |
Variable Typology
Wind exposure ?Comment:Wind exposure for shoreline segments was computed by first dividing the 360 degrees compass rose into sixteen equiangular sectors. Then, for each sector, the average wind speed of the highest 10% wind speeds on record in each sector was multiplied by the fetch distance of that sector and by the percent of all wind speeds on record that blow in the direction of that sector. The values for all sectors of a shoreline segment were then summed and re-ranked as a 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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--Ecosystem- or landscape-level metrics or indices of ecological condition, rarity or vulnerability |
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----Coastal/estuary/coral condition, rarity or vulnerability |
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Variable Spatial Characteristics
Wind exposure ?Comment:Wind exposure for shoreline segments was computed by first dividing the 360 degrees compass rose into sixteen equiangular sectors. Then, for each sector, the average wind speed of the highest 10% wind speeds on record in each sector was multiplied by the fetch distance of that sector and by the percent of all wind speeds on record that blow in the direction of that sector. The values for all sectors of a shoreline segment were then summed and re-ranked as a percentile. |
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Spatial Extent Area
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10-100 km^2 |
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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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length, for linear feature (e.g., stream mile) |
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Spatial Grain Size
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80 m |
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Spatial Density
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Not applicable |
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EnviroAtlas URL
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Variable Temporal Characteristics
Wind exposure ?Comment:Wind exposure for shoreline segments was computed by first dividing the 360 degrees compass rose into sixteen equiangular sectors. Then, for each sector, the average wind speed of the highest 10% wind speeds on record in each sector was multiplied by the fetch distance of that sector and by the percent of all wind speeds on record that blow in the direction of that sector. The values for all sectors of a shoreline segment were then summed and re-ranked as a percentile. |
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Temporal Extent
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1609-2080 |
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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
Wind exposure ?Comment:Wind exposure for shoreline segments was computed by first dividing the 360 degrees compass rose into sixteen equiangular sectors. Then, for each sector, the average wind speed of the highest 10% wind speeds on record in each sector was multiplied by the fetch distance of that sector and by the percent of all wind speeds on record that blow in the direction of that sector. The values for all sectors of a shoreline segment were then summed and re-ranked as a 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
Wind exposure ?Comment:Wind exposure for shoreline segments was computed by first dividing the 360 degrees compass rose into sixteen equiangular sectors. Then, for each sector, the average wind speed of the highest 10% wind speeds on record in each sector was multiplied by the fetch distance of that sector and by the percent of all wind speeds on record that blow in the direction of that sector. The values for all sectors of a shoreline segment were then summed and re-ranked as a percentile. |
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Variability Expression Given?
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No |
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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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