EcoService Models Library (ESML)
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Variables Details
: (EM-685)
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EM Identity and Description
EM-685 | |
Document Author
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Lyon, Sarina F., Nathaniel H. Merrill, Kate K. Mulvaney, and Marisa J. Mazzotta |
Document Year
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2018 |
Variable General Info
Net willingness to pay (WTP) for a beach day ?Comment:Derived as output from the "WTP for a beach day, Massachusetts, USA" model. |
Parking fee per car ?Comment:2016 value. |
People per car ?Comment:Predicted beach attendance in terms of number of visitors, was converted from cars to people by multiplying car counts by three (which the town of Barnstable uses when estimating visitation to their beaches; Patti Machado, Leisure Services Director for the Town of Barnstable’s Recreation Division. |
Percent of car visits that are non-residents ?Comment:Beaches in Barnstable allow both residents with seasonal passes and out-of-town visitors who purchase a daily parking fee to access each of the four public beaches. Based on this differential in use data collected by the town, 51 percent of the cars that park are non-residents and purchase a daily pass to park for the day. |
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Variable ID
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16261 | 16327 | 16325 | 16326 |
Not reported | p | ppc | %nonresident | |
Qualitative-Quantitative
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Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) |
Cardinal-Ordinal
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Cardinal | Cardinal | Cardinal | Cardinal |
$ ind.^-1 | $ | No. ind. | % |
Variable Typology
Net willingness to pay (WTP) for a beach day ?Comment:Derived as output from the "WTP for a beach day, Massachusetts, USA" model. |
Parking fee per car ?Comment:2016 value. |
People per car ?Comment:Predicted beach attendance in terms of number of visitors, was converted from cars to people by multiplying car counts by three (which the town of Barnstable uses when estimating visitation to their beaches; Patti Machado, Leisure Services Director for the Town of Barnstable’s Recreation Division. |
Percent of car visits that are non-residents ?Comment:Beaches in Barnstable allow both residents with seasonal passes and out-of-town visitors who purchase a daily parking fee to access each of the four public beaches. Based on this differential in use data collected by the town, 51 percent of the cars that park are non-residents and purchase a daily pass to park for the day. |
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Predictor-Intermediate-Response
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Predictor |
Predictor |
Predictor |
Predictor |
Predictor Variable Type
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Constant or Parameter | Constant or Parameter | Constant or Parameter | Constant or Parameter |
Response Variable Type
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Not applicable | Not applicable | Not applicable | Not applicable |
Data Source/Type
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Derived as output of another model (and not found in a widely available database) | 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) |
Variable Classification Hierarchy
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7. Monetary Values |
7. Monetary Values |
3. Human Demographic Data |
3. Human Demographic Data |
--Population number, density and growth |
--Other, multiple, unspecified or unclear |
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Variable Spatial Characteristics
Net willingness to pay (WTP) for a beach day ?Comment:Derived as output from the "WTP for a beach day, Massachusetts, USA" model. |
Parking fee per car ?Comment:2016 value. |
People per car ?Comment:Predicted beach attendance in terms of number of visitors, was converted from cars to people by multiplying car counts by three (which the town of Barnstable uses when estimating visitation to their beaches; Patti Machado, Leisure Services Director for the Town of Barnstable’s Recreation Division. |
Percent of car visits that are non-residents ?Comment:Beaches in Barnstable allow both residents with seasonal passes and out-of-town visitors who purchase a daily parking fee to access each of the four public beaches. Based on this differential in use data collected by the town, 51 percent of the cars that park are non-residents and purchase a daily pass to park for the day. |
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Spatial Extent Area
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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 |
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 |
Observations Spatially Patterned?
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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 |
Spatial Grain Type
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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 |
Spatial Grain Size
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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 |
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 |
EnviroAtlas URL
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Dasymetric Allocation of Population |
Variable Temporal Characteristics
Net willingness to pay (WTP) for a beach day ?Comment:Derived as output from the "WTP for a beach day, Massachusetts, USA" model. |
Parking fee per car ?Comment:2016 value. |
People per car ?Comment:Predicted beach attendance in terms of number of visitors, was converted from cars to people by multiplying car counts by three (which the town of Barnstable uses when estimating visitation to their beaches; Patti Machado, Leisure Services Director for the Town of Barnstable’s Recreation Division. |
Percent of car visits that are non-residents ?Comment:Beaches in Barnstable allow both residents with seasonal passes and out-of-town visitors who purchase a daily parking fee to access each of the four public beaches. Based on this differential in use data collected by the town, 51 percent of the cars that park are non-residents and purchase a daily pass to park for the day. |
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Temporal Extent
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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 |
Temporally 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 |
Regular Temporal Grain?
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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 |
Temporal Grain Size Value
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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 |
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 |
Temporal 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 |
Variable Values
Net willingness to pay (WTP) for a beach day ?Comment:Derived as output from the "WTP for a beach day, Massachusetts, USA" model. |
Parking fee per car ?Comment:2016 value. |
People per car ?Comment:Predicted beach attendance in terms of number of visitors, was converted from cars to people by multiplying car counts by three (which the town of Barnstable uses when estimating visitation to their beaches; Patti Machado, Leisure Services Director for the Town of Barnstable’s Recreation Division. |
Percent of car visits that are non-residents ?Comment:Beaches in Barnstable allow both residents with seasonal passes and out-of-town visitors who purchase a daily parking fee to access each of the four public beaches. Based on this differential in use data collected by the town, 51 percent of the cars that park are non-residents and purchase a daily pass to park for the day. |
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Not applicable ?Comment:The value using a policy application of consumer surplus of $21.99, for a beach with past closures. All four beaches had closures between 2011 and 2015. The consumer surplus value if all beaches were considered “pristine,” meaning no closure was posted from 2011 – 2015 due to bacterial contamination, would be $47.58. |
Not applicable | Not applicable | Not reported | |
Min Value
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Not applicable | Not applicable | Not applicable | Not reported |
Max Value
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Not applicable | Not applicable | Not applicable | Not reported |
Other Value Type
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Single Observation or Parameter Value | Single Observation or Parameter Value | Single Observation or Parameter Value | Mean |
Other Value
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21.99 | 20 | 3 | 51 |
Variable Variability and Sensitivity
Net willingness to pay (WTP) for a beach day ?Comment:Derived as output from the "WTP for a beach day, Massachusetts, USA" model. |
Parking fee per car ?Comment:2016 value. |
People per car ?Comment:Predicted beach attendance in terms of number of visitors, was converted from cars to people by multiplying car counts by three (which the town of Barnstable uses when estimating visitation to their beaches; Patti Machado, Leisure Services Director for the Town of Barnstable’s Recreation Division. |
Percent of car visits that are non-residents ?Comment:Beaches in Barnstable allow both residents with seasonal passes and out-of-town visitors who purchase a daily parking fee to access each of the four public beaches. Based on this differential in use data collected by the town, 51 percent of the cars that park are non-residents and purchase a daily pass to park for the day. |
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Variability Expression Given?
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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 |
Variability Metric
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None | None | None | None |
Variability Value
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None | None | None | None |
Variability Units
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None | None | None | None |
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 |
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 |
Variable Operational Validation (Response Variables only)
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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