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Variables Details
: (EM-627)
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EM Identity and Description
| EM-627 | |
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Document Author
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Crumpton, W. G., G. A. Stenback, B. A. Miller, and M. J. Helmers |
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Document Year
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2006 |
Variable General Info
Potential average mass nitrate removal ?Comment:Results are for the potential AVERAGE mass nitrate removal for the period 1990-1999. The minimum estimate is based on the more conservative scenario of the loss rate coefficient, and the maximum estimate is based on the less conservative scenario of the loss rate coefficient. The mean estimate is based on an average scenario of the loss rate coefficient. |
Potential average mass nitrate removal (mapped) ?Comment:Mapped results are for the potential AVERAGE mass nitrate removal aggregated over the period 1990-1999. Individual yearly maps are also presented in the paper for the potential AVERAGE mass nitrate removal by year for the period 1990-1999. |
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Variable ID
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15021 | 15022 |
| Not reported | Not reported | |
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Qualitative-Quantitative
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Quantitative (Cardinal Only) | Quantitative (Cardinal Only) |
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Cardinal-Ordinal
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Cardinal | Cardinal |
| kg N ha of wetland^-1 yr^-1 | kg N ha of wetland^-1 yr^-1 |
Variable Typology
Potential average mass nitrate removal ?Comment:Results are for the potential AVERAGE mass nitrate removal for the period 1990-1999. The minimum estimate is based on the more conservative scenario of the loss rate coefficient, and the maximum estimate is based on the less conservative scenario of the loss rate coefficient. The mean estimate is based on an average scenario of the loss rate coefficient. |
Potential average mass nitrate removal (mapped) ?Comment:Mapped results are for the potential AVERAGE mass nitrate removal aggregated over the period 1990-1999. Individual yearly maps are also presented in the paper for the potential AVERAGE mass nitrate removal by year for the period 1990-1999. |
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Predictor-Intermediate-Response
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Response |
Response |
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Predictor Variable Type
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Not applicable | Not applicable |
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Response Variable Type
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Computed Variable |
Computed Variable |
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Data Source/Type
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Not applicable | Not applicable |
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Variable Classification Hierarchy
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5. Ecosystem Attributes and Potential Supply of Ecosystem Goods and Services |
5. Ecosystem Attributes and Potential Supply of Ecosystem Goods and Services |
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--CICES categories: Ecosystem goods and services - or landscape-level indices of suitability to supply EGS |
--CICES categories: Ecosystem goods and services - or landscape-level indices of suitability to supply EGS |
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----Suitability to supply regulation & maintenance services-Mediation of wastes |
----Suitability to supply regulation & maintenance services-Mediation of wastes |
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------Filtration/sequestration/storage/accumulation by ecosystems |
------Filtration/sequestration/storage/accumulation by ecosystems |
Variable Spatial Characteristics
Potential average mass nitrate removal ?Comment:Results are for the potential AVERAGE mass nitrate removal for the period 1990-1999. The minimum estimate is based on the more conservative scenario of the loss rate coefficient, and the maximum estimate is based on the less conservative scenario of the loss rate coefficient. The mean estimate is based on an average scenario of the loss rate coefficient. |
Potential average mass nitrate removal (mapped) ?Comment:Mapped results are for the potential AVERAGE mass nitrate removal aggregated over the period 1990-1999. Individual yearly maps are also presented in the paper for the potential AVERAGE mass nitrate removal by year for the period 1990-1999. |
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Spatial Extent Area
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>1,000,000 km^2 | >1,000,000 km^2 |
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Spatially Distributed?
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No | Yes |
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Observations Spatially Patterned?
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Not applicable | Yes |
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Spatial Grain Type
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Not applicable | area, for pixel or radial feature |
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Spatial Grain Size
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Not applicable | 1 km2 |
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Spatial Density
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Not applicable | Not applicable |
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EnviroAtlas URL
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Variable Temporal Characteristics
Potential average mass nitrate removal ?Comment:Results are for the potential AVERAGE mass nitrate removal for the period 1990-1999. The minimum estimate is based on the more conservative scenario of the loss rate coefficient, and the maximum estimate is based on the less conservative scenario of the loss rate coefficient. The mean estimate is based on an average scenario of the loss rate coefficient. |
Potential average mass nitrate removal (mapped) ?Comment:Mapped results are for the potential AVERAGE mass nitrate removal aggregated over the period 1990-1999. Individual yearly maps are also presented in the paper for the potential AVERAGE mass nitrate removal by year for the period 1990-1999. |
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Temporal Extent
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1990-1999 | 1990-1999 |
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Temporally Distributed?
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No | No |
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Regular Temporal Grain?
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Not applicable | Not applicable |
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Temporal Grain Size Value
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Not applicable | Not applicable |
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Temporal Grain Size Units
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Not applicable | Not applicable |
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Temporal Density
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Not applicable | Not applicable |
Variable Values
Potential average mass nitrate removal ?Comment:Results are for the potential AVERAGE mass nitrate removal for the period 1990-1999. The minimum estimate is based on the more conservative scenario of the loss rate coefficient, and the maximum estimate is based on the less conservative scenario of the loss rate coefficient. The mean estimate is based on an average scenario of the loss rate coefficient. |
Potential average mass nitrate removal (mapped) ?Comment:Mapped results are for the potential AVERAGE mass nitrate removal aggregated over the period 1990-1999. Individual yearly maps are also presented in the paper for the potential AVERAGE mass nitrate removal by year for the period 1990-1999. |
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kg N ha of wetland^-1 yr^-1 ?Comment:Results are for the potential AVERAGE mass nitrate removal for the period 1990-1999. The minimum estimate is based on the more conservative scenario of the loss rate coefficient, and the maximum estimate is based on the less conservative scenario of the loss rate coefficient. The mean estimate is based on an average scenario of the loss rate coefficient. |
kg N ha of wetland^-1 yr^-1 ?Comment:Mapped results are for the potential AVERAGE mass nitrate removal for the period 1990-1999. |
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Min Value
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530 | 0 |
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Max Value
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1130 | >900 |
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Other Value Type
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Mean | Not applicable |
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Other Value
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830 | Not reported |
Variable Variability and Sensitivity
Potential average mass nitrate removal ?Comment:Results are for the potential AVERAGE mass nitrate removal for the period 1990-1999. The minimum estimate is based on the more conservative scenario of the loss rate coefficient, and the maximum estimate is based on the less conservative scenario of the loss rate coefficient. The mean estimate is based on an average scenario of the loss rate coefficient. |
Potential average mass nitrate removal (mapped) ?Comment:Mapped results are for the potential AVERAGE mass nitrate removal aggregated over the period 1990-1999. Individual yearly maps are also presented in the paper for the potential AVERAGE mass nitrate removal by year for the period 1990-1999. |
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Variability Expression Given?
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No | No |
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Variability Metric
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None | None |
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Variability Value
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None | None |
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Variability Units
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None | None |
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Resampling Used?
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Not applicable | Not applicable |
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Variability Expression Used in Modeling?
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Not applicable | Not applicable |
Variable Operational Validation (Response Variables only)
| Potential average mass nitrate removal | Potential average mass nitrate removal (mapped) | |
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Variable ID
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15021 | 15022 |
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Validated?
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Not applicable | Not applicable |
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Validation Approach (within, between, etc.)
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None | None |
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Validation Quality (Qual/Quant)
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None | None |
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Validation Method (Stat/Deviance)
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None | None |
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Validation Metric
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None | None |
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Validation Value
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None | None |
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Validation Units
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None | None |
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Use of Measured Response Data
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None | None |