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Variables Details
: (EM-819)
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EM Identity and Description
| EM-819 | |
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Document Author
variable.detail.emDocumentAuthorHelp
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Taft, B., J. P. Koncelik |
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Document Year
variable.detail.emDocumentYearHelp
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2006 |
Variable General Info
Substrate type (pool/riffle) ?Comment:Check the two most common substrate types (bldr/slabs, boulder, cobble, gravel, sand, bedrock, hardpan, detritus, muck, silt, artificial) in the stream reach. If one substrate type predominates (greater than approximately 75- 80% of the bottom area OR what is clearly the most functionally predominant substrate) then this substrate type should be checked twice. Spaces are provided to note the presence (by check marks, or estimates of % if time allows) of all substrate types present in pools (includes pools and glides) and riffles (includes riffles and runs) that each comprise sufficient quantity to support species that may commonly be associated with that substrate type. |
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Variable ID
variable.detail.varIdHelp
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19307 |
| 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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Non-Ordinal |
| Not applicable |
Variable Typology
Substrate type (pool/riffle) ?Comment:Check the two most common substrate types (bldr/slabs, boulder, cobble, gravel, sand, bedrock, hardpan, detritus, muck, silt, artificial) in the stream reach. If one substrate type predominates (greater than approximately 75- 80% of the bottom area OR what is clearly the most functionally predominant substrate) then this substrate type should be checked twice. Spaces are provided to note the presence (by check marks, or estimates of % if time allows) of all substrate types present in pools (includes pools and glides) and riffles (includes riffles and runs) that each comprise sufficient quantity to support species that may commonly be associated with that substrate type. |
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Predictor-Intermediate-Response
variable.detail.displayVariableTypeHelp
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Predictor |
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Predictor Variable Type
variable.detail.displayPredictorVariableTypeHelp
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Constant or Parameter |
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Response Variable Type
variable.detail.resClassHelp
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Not applicable |
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Data Source/Type
variable.detail.dataTypeHelp
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Not applicable |
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Variable Classification Hierarchy
variable.detail.vchLevel1Help
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2. Land Surface (or Water Body) Cover, Use, Substrate, or Metric |
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--Dominant soil or substrate type |
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Variable Spatial Characteristics
Substrate type (pool/riffle) ?Comment:Check the two most common substrate types (bldr/slabs, boulder, cobble, gravel, sand, bedrock, hardpan, detritus, muck, silt, artificial) in the stream reach. If one substrate type predominates (greater than approximately 75- 80% of the bottom area OR what is clearly the most functionally predominant substrate) then this substrate type should be checked twice. Spaces are provided to note the presence (by check marks, or estimates of % if time allows) of all substrate types present in pools (includes pools and glides) and riffles (includes riffles and runs) that each comprise sufficient quantity to support species that may commonly be associated with that substrate type. |
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Spatial Extent Area
variable.detail.spExtentHelp
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Not recorded for Constant or Parameter Variables |
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Spatially Distributed?
variable.detail.spDistributedHelp
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Not recorded for Constant or Parameter Variables |
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Observations Spatially Patterned?
variable.detail.regularSpGrainHelp
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Not recorded for Constant or Parameter Variables |
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Spatial Grain Type
variable.detail.spGrainTypeHelp
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Not recorded for Constant or Paarameter Variables |
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Spatial Grain Size
variable.detail.spGrainSizeHelp
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Not recorded for Constant or Parameter Variables |
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Spatial Density
variable.detail.spDensityHelp
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Not recorded for Constant or Parameter Variables |
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EnviroAtlas URL
variable.detail.enviroAtlasURLHelp
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Variable Temporal Characteristics
Substrate type (pool/riffle) ?Comment:Check the two most common substrate types (bldr/slabs, boulder, cobble, gravel, sand, bedrock, hardpan, detritus, muck, silt, artificial) in the stream reach. If one substrate type predominates (greater than approximately 75- 80% of the bottom area OR what is clearly the most functionally predominant substrate) then this substrate type should be checked twice. Spaces are provided to note the presence (by check marks, or estimates of % if time allows) of all substrate types present in pools (includes pools and glides) and riffles (includes riffles and runs) that each comprise sufficient quantity to support species that may commonly be associated with that substrate type. |
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Temporal Extent
variable.detail.tempExtentHelp
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Not recorded for Constant or Parameter Variables |
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Temporally Distributed?
variable.detail.tempDistributedHelp
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Not recorded for Constant or Parameter Variables |
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Regular Temporal Grain?
variable.detail.regularTempGrainHelp
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Not recorded for Constant or Parameter Variables |
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Temporal Grain Size Value
variable.detail.tempGrainSizeValHelp
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Not recorded for Constant or Parameter Variables |
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Temporal Grain Size Units
variable.detail.tempGrainSizeUnitHelp
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Not recorded for Constant or Parameter Variables |
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Temporal Density
variable.detail.tempDensityHelp
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Not recorded for Constant or Parameter Variables |
Variable Values
Substrate type (pool/riffle) ?Comment:Check the two most common substrate types (bldr/slabs, boulder, cobble, gravel, sand, bedrock, hardpan, detritus, muck, silt, artificial) in the stream reach. If one substrate type predominates (greater than approximately 75- 80% of the bottom area OR what is clearly the most functionally predominant substrate) then this substrate type should be checked twice. Spaces are provided to note the presence (by check marks, or estimates of % if time allows) of all substrate types present in pools (includes pools and glides) and riffles (includes riffles and runs) that each comprise sufficient quantity to support species that may commonly be associated with that substrate type. |
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| Not applicable | |
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Min Value
variable.detail.minEstHelp
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Not applicable |
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Max Value
variable.detail.estHelp
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Not applicable |
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Other Value Type
variable.detail.natureOtherEstHelp
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Not applicable |
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Other Value
variable.detail.otherEstHelp
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Not applicable |
Variable Variability and Sensitivity
Substrate type (pool/riffle) ?Comment:Check the two most common substrate types (bldr/slabs, boulder, cobble, gravel, sand, bedrock, hardpan, detritus, muck, silt, artificial) in the stream reach. If one substrate type predominates (greater than approximately 75- 80% of the bottom area OR what is clearly the most functionally predominant substrate) then this substrate type should be checked twice. Spaces are provided to note the presence (by check marks, or estimates of % if time allows) of all substrate types present in pools (includes pools and glides) and riffles (includes riffles and runs) that each comprise sufficient quantity to support species that may commonly be associated with that substrate type. |
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Variability Expression Given?
variable.detail.variabilityExpHelp
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Not recorded for Constant or Parameter Variables |
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Variability Metric
variable.detail.variabilityMetricHelp
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None |
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Variability Value
variable.detail.variabilityValueHelp
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None |
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Variability Units
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None |
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Resampling Used?
variable.detail.bootstrappingHelp
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Not recorded for Constant or Parameter Variables |
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Variability Expression Used in Modeling?
variable.detail.variabilityUsedHelp
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Not recorded for Constant or Parameter Variables |
Variable Operational Validation (Response Variables only)
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Variable ID
variable.detail.varIdHelp
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Validated?
variable.detail.resValidatedHelp
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Validation Approach (within, between, etc.)
variable.detail.validationApproachHelp
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Validation Quality (Qual/Quant)
variable.detail.validationQualityHelp
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Validation Method (Stat/Deviance)
variable.detail.validationMethodHelp
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Validation Metric
variable.detail.validationMetricHelp
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Validation Value
variable.detail.validationValHelp
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Validation Units
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Use of Measured Response Data
variable.detail.measuredResponseDataHelp
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