{PAGE NAME} | {WEB AREA NAME}

EM Identity and Description

EM ID variable.detail.emIdHelp ?	EM-452
Document Author variable.detail.emDocumentAuthorHelp ?	Yee, S. H., Dittmar, J. A., and L. M. Oliver
Document Year variable.detail.emDocumentYearHelp ?	2014

Variable General Info

Name variable.detail.varNameHelp ?	Habitat type class ? Comment: Habitat types (i): dense, medium dense, or sparse seagrass, mangroves, sand, macroalgae, A palmata, Montastraea reef, patch reef, and dense or sparse gorgonians.	Relative magnitude of sand generation for each habitat type ? Comment: Weighting determined by habitat type.	Fraction of area within each grid cell for each habitat type	Relative sand generation
Variable ID variable.detail.varIdHelp ?	9601	9602	9603	9604
Symbol variable.detail.varSymbolHelp ?	i	Mi	ci	Not reported
Qualitative-Quantitative variable.detail.continuousCategoricalHelp ?	Qualitative (Class, Rating or Ranking)	Qualitative (Class, Rating or Ranking)	Quantitative (Cardinal Only)	Quantitative (Cardinal Only)
Cardinal-Ordinal variable.detail.cardinalOrdinalHelp ?	Non-Ordinal	Ordinal	Cardinal	Cardinal
Units variable.detail.varUnitsHelp ?	Not applicable	Not applicable	%	unitless

Variable Typology

Name variable.detail.varNameHelp ?	Habitat type class ? Comment: Habitat types (i): dense, medium dense, or sparse seagrass, mangroves, sand, macroalgae, A palmata, Montastraea reef, patch reef, and dense or sparse gorgonians.	Relative magnitude of sand generation for each habitat type ? Comment: Weighting determined by habitat type.	Fraction of area within each grid cell for each habitat type	Relative sand generation
Predictor-Intermediate-Response variable.detail.displayVariableTypeHelp ?	Predictor	Predictor	Intermediate (Computed) Variable	Response
Predictor Variable Type variable.detail.displayPredictorVariableTypeHelp ?	Time- or Space-varying Variable	Constant or Parameter	Not applicable	Not applicable
Response Variable Type variable.detail.resClassHelp ?	Not applicable	Not applicable	Not applicable	Computed Variable
Data Source/Type variable.detail.dataTypeHelp ?	Map or database (e.g., wide coverage, wide availability, measured or modeled)	Other or unclear (comment)	Not applicable	Not applicable
Variable Classification Hierarchy variable.detail.vchLevel1Help ?	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	5. Ecosystem Attributes and Potential Supply of Ecosystem Goods and Services
	--Land use/land cover type or dominant habitat type	--CICES categories: Ecosystem goods and services - or landscape-level indices of suitability to supply EGS	--Land use/land cover type or dominant habitat type	--CICES categories: Ecosystem goods and services - or landscape-level indices of suitability to supply EGS
	----Other, multiple, unspecified or unclear	----Suitability to supply provisioning services-Materials	----Other, multiple, unspecified or unclear	----Suitability to supply provisioning services-Materials
		------Abiotic materials - non-metallic		------Abiotic materials - non-metallic

Variable Spatial Characteristics

Name variable.detail.varNameHelp ?	Habitat type class ? Comment: Habitat types (i): dense, medium dense, or sparse seagrass, mangroves, sand, macroalgae, A palmata, Montastraea reef, patch reef, and dense or sparse gorgonians.	Relative magnitude of sand generation for each habitat type ? Comment: Weighting determined by habitat type.	Fraction of area within each grid cell for each habitat type	Relative sand generation
Spatial Extent Area variable.detail.spExtentHelp ?	100-1000 km^2	Not recorded for Constant or Factor Variables	100-1000 km^2	100-1000 km^2
Spatially Distributed? variable.detail.spDistributedHelp ?	Yes	Not recorded for Constant or Factor Variables	Yes	No
Observations Spatially Patterned? variable.detail.regularSpGrainHelp ?	Yes	Not recorded for Constant or Factor Variables	Yes	Not applicable
Spatial Grain Type variable.detail.spGrainTypeHelp ?	area, for pixel or radial feature	Not recorded for Constant or Factor Variables	area, for pixel or radial feature	Not applicable
Spatial Grain Size variable.detail.spGrainSizeHelp ?	10 m x 10 m	Not recorded for Constant or Factor Variables	10 m x 10 m	Not applicable
Spatial Density variable.detail.spDensityHelp ?	Not applicable	Not recorded for Constant or Factor Variables	Not applicable	Not applicable
EnviroAtlas URL variable.detail.enviroAtlasURLHelp ?

Variable Temporal Characteristics

Name variable.detail.varNameHelp ?	Habitat type class ? Comment: Habitat types (i): dense, medium dense, or sparse seagrass, mangroves, sand, macroalgae, A palmata, Montastraea reef, patch reef, and dense or sparse gorgonians.	Relative magnitude of sand generation for each habitat type ? Comment: Weighting determined by habitat type.	Fraction of area within each grid cell for each habitat type	Relative sand generation
Temporal Extent variable.detail.tempExtentHelp ?	2006-2007, 2010	Not recorded for Constant or Factor Variables	2006-2007, 2010	2006-2007, 2010
Temporally Distributed? variable.detail.tempDistributedHelp ?	Not applicable	Not recorded for Constant or Factor Variables	Not applicable	Not applicable
Regular Temporal Grain? variable.detail.regularTempGrainHelp ?	Not applicable	Not recorded for Constant or Factor Variables	Not applicable	Not applicable
Temporal Grain Size Value variable.detail.tempGrainSizeValHelp ?	Not applicable	Not recorded for Constant or Factor Variables	Not applicable	Not applicable
Temporal Grain Size Units variable.detail.tempGrainSizeUnitHelp ?	Not applicable	Not recorded for Constant or Factor Variables	Not applicable	Not applicable
Temporal Density variable.detail.tempDensityHelp ?	Not applicable	Not recorded for Constant or Factor Variables	Not applicable	Not applicable

Variable Values

Name variable.detail.varNameHelp ?	Habitat type class ? Comment: Habitat types (i): dense, medium dense, or sparse seagrass, mangroves, sand, macroalgae, A palmata, Montastraea reef, patch reef, and dense or sparse gorgonians.	Relative magnitude of sand generation for each habitat type ? Comment: Weighting determined by habitat type.	Fraction of area within each grid cell for each habitat type	Relative sand generation
Units variable.detail.estUnitHelp ?	Not applicable	Not applicable	Not reported	Not reported
Min Value variable.detail.minEstHelp ?	Not applicable	Not applicable	Not reported	Not reported
Max Value variable.detail.estHelp ?	Not applicable	Not applicable	Not reported	Not reported
Other Value Type variable.detail.natureOtherEstHelp ?	Not applicable	Not applicable	Not applicable	Mean
Other Value variable.detail.otherEstHelp ?	Not applicable	Not applicable	Not reported	0.30

Variable Variability and Sensitivity

Name

Habitat type class ?

Relative magnitude of sand generation for each habitat type ?

Fraction of area within each grid cell for each habitat type

Relative sand generation

Variability Expression Given?

Not applicable

Not recorded for Constant or Factor Variables

No

Yes

Variability Metric

None

SD

Variability Value

None

0.10-1.50

Variability Units

None

unitless

Resampling Used?

Not applicable

Not recorded for Constant or Factor Variables

Not applicable

Variability Expression Used in Modeling?

Not applicable

Not recorded for Constant or Factor Variables

Not applicable

No

Variable Operational Validation (Response Variables only)

Name

Relative sand generation

Variable ID

9604

Validated?

Yes

Validation Approach (within, between, etc.)

Within-model (using partitioned or independent data)

Validation Quality (Qual/Quant)

Direct Value Comparisons

Validation Method (Stat/Deviance)

Mean Comparisons

Validation Metric

T-Test: T-Statistic

Validation Value

0.8

Validation Units

Not applicable

Use of Measured Response Data

None

US EPA

EcoService Models Library (ESML)

Variables Details

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