EcoService Models Library (ESML)

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Variables Details

: (EM-685)

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EM Identity and Description

EM ID variable.detail.emIdHelp ?	EM-685
Document Author variable.detail.emDocumentAuthorHelp ?	Lyon, Sarina F., Nathaniel H. Merrill, Kate K. Mulvaney, and Marisa J. Mazzotta
Document Year variable.detail.emDocumentYearHelp ?	2018

Variable General Info

Name variable.detail.varNameHelp ?	Number of visitors to beaches ? Comment: Derived from the "Beach visitation , Barnstable, MA, USA" model.	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.	Market plus non-market losses due to a beach closure ? Comment: Value lost per day due to a beach closure in 2016$. Data by beach site and day type are presented in Table 5.
Variable ID variable.detail.varIdHelp ?	16324	16261	16327	16325	16326	16328
Symbol variable.detail.varSymbolHelp ?	Δvisitors	Not reported	p	ppc	%nonresident	$c
Qualitative-Quantitative variable.detail.continuousCategoricalHelp ?	Quantitative (Cardinal Only)	Quantitative (Cardinal Only)	Quantitative (Cardinal Only)	Quantitative (Cardinal Only)	Quantitative (Cardinal Only)	Quantitative (Cardinal Only)
Cardinal-Ordinal variable.detail.cardinalOrdinalHelp ?	Cardinal	Cardinal	Cardinal	Cardinal	Cardinal	Cardinal
Units variable.detail.varUnitsHelp ?	No. ind./day/site	$ ind.^-1	$	No. ind.	%	$ day^-1 site^-1

Variable Typology

Name variable.detail.varNameHelp ?	Number of visitors to beaches ? Comment: Derived from the "Beach visitation , Barnstable, MA, USA" model.	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.	Market plus non-market losses due to a beach closure ? Comment: Value lost per day due to a beach closure in 2016$. Data by beach site and day type are presented in Table 5.
Predictor-Intermediate-Response variable.detail.displayVariableTypeHelp ?	Predictor	Predictor	Predictor	Predictor	Predictor	Response
Predictor Variable Type variable.detail.displayPredictorVariableTypeHelp ?	Time- or Space-varying Variable	Constant or Parameter	Constant or Parameter	Constant or Parameter	Constant or Parameter	Not applicable
Response Variable Type variable.detail.resClassHelp ?	Not applicable	Not applicable	Not applicable	Not applicable	Not applicable	Computed Variable
Data Source/Type variable.detail.dataTypeHelp ?	Derived as output of another model (and not found in a widely available database)	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)	Not applicable
Variable Classification Hierarchy variable.detail.vchLevel1Help ?	3. Human Demographic Data	7. Monetary Values	7. Monetary Values	3. Human Demographic Data	3. Human Demographic Data	7. Monetary Values
				--Population number, density and growth	--Other, multiple, unspecified or unclear

Variable Spatial Characteristics

Name variable.detail.varNameHelp ?	Number of visitors to beaches ? Comment: Derived from the "Beach visitation , Barnstable, MA, USA" model.	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.	Market plus non-market losses due to a beach closure ? Comment: Value lost per day due to a beach closure in 2016$. Data by beach site and day type are presented in Table 5.
Spatial Extent Area variable.detail.spExtentHelp ?	10-100 ha	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	10-100 ha
Spatially Distributed? variable.detail.spDistributedHelp ?	Yes	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	Yes
Observations Spatially Patterned? variable.detail.regularSpGrainHelp ?	Yes	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	Yes
Spatial Grain Type variable.detail.spGrainTypeHelp ?	length, for linear feature (e.g., stream mile)	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	length, for linear feature (e.g., stream mile)
Spatial Grain Size variable.detail.spGrainSizeHelp ?	by beach	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	by beach site
Spatial Density variable.detail.spDensityHelp ?	Not applicable	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 applicable
EnviroAtlas URL variable.detail.enviroAtlasURLHelp ?				Dasymetric Allocation of Population

Variable Temporal Characteristics

Name variable.detail.varNameHelp ?	Number of visitors to beaches ? Comment: Derived from the "Beach visitation , Barnstable, MA, USA" model.	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.	Market plus non-market losses due to a beach closure ? Comment: Value lost per day due to a beach closure in 2016$. Data by beach site and day type are presented in Table 5.
Temporal Extent variable.detail.tempExtentHelp ?	2015	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	2015
Temporally Distributed? variable.detail.tempDistributedHelp ?	Yes	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	Yes
Regular Temporal Grain? variable.detail.regularTempGrainHelp ?	Yes	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	Yes
Temporal Grain Size Value variable.detail.tempGrainSizeValHelp ?	1	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	1
Temporal Grain Size Units variable.detail.tempGrainSizeUnitHelp ?	day	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	day
Temporal Density variable.detail.tempDensityHelp ?	Not applicable	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 applicable

Variable Values

Name variable.detail.varNameHelp ?	Number of visitors to beaches ? Comment: Derived from the "Beach visitation , Barnstable, MA, USA" model.	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.	Market plus non-market losses due to a beach closure ? Comment: Value lost per day due to a beach closure in 2016$. Data by beach site and day type are presented in Table 5.
Units variable.detail.estUnitHelp ?	Not reported	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	$ day^-1 site^-1
Min Value variable.detail.minEstHelp ?	Not reported	Not applicable	Not applicable	Not applicable	Not reported	1,055
Max Value variable.detail.estHelp ?	Not reported	Not applicable	Not applicable	Not applicable	Not reported	37,534
Other Value Type variable.detail.natureOtherEstHelp ?	Not applicable	Single Observation or Parameter Value	Single Observation or Parameter Value	Single Observation or Parameter Value	Mean	Not applicable
Other Value variable.detail.otherEstHelp ?	Not reported	21.99	20	3	51	Not reported

Variable Variability and Sensitivity

Name variable.detail.varNameHelp ?	Number of visitors to beaches ? Comment: Derived from the "Beach visitation , Barnstable, MA, USA" model.	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.	Market plus non-market losses due to a beach closure ? Comment: Value lost per day due to a beach closure in 2016$. Data by beach site and day type are presented in Table 5.
Variability Expression Given? variable.detail.variabilityExpHelp ?	No	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	No
Variability Metric variable.detail.variabilityMetricHelp ?	None	None	None	None	None	None
Variability Value variable.detail.variabilityValueHelp ?	None	None	None	None	None	None
Variability Units	None	None	None	None	None	None
Resampling Used? variable.detail.bootstrappingHelp ?	Not applicable	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 applicable
Variability Expression Used in Modeling? variable.detail.variabilityUsedHelp ?	Not applicable	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 applicable

Variable Operational Validation (Response Variables only)

Name variable.detail.varNameHelp ?	Market plus non-market losses due to a beach closure
Variable ID variable.detail.varIdHelp ?	16328
Validated? variable.detail.resValidatedHelp ?	Not applicable
Validation Approach (within, between, etc.) variable.detail.validationApproachHelp ?	None
Validation Quality (Qual/Quant) variable.detail.validationQualityHelp ?	None
Validation Method (Stat/Deviance) variable.detail.validationMethodHelp ?	None
Validation Metric variable.detail.validationMetricHelp ?	None
Validation Value variable.detail.validationValHelp ?	None
Validation Units	None
Use of Measured Response Data variable.detail.measuredResponseDataHelp ?	None