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This data set contains data for wet and dry nitrogen-species deposition for the United States and Western Europe. Deposition data were acquired directly from monitoring programs in the United States and Europe covering time periods from 1978-1994 for wet deposition and from 1989-1994 for dry deposition and evaluated using similar quality assurance criteria to ensure comparability. A standard geostatistical method (kriging) was used to interpolate data onto a 0.5 x 0.5 degree resolution map for wet and dry deposition. Analysis of N deposition for these regions was limited by sampling density, frequency, and coverage. These spatially explicit wet and dry N fluxes also provide a tool for verifying regional and global models of atmospheric chemistry and transport, and represent critical inputs into terrestrial models of biogeochemistry. These data can be used to construct continental scale N budgets and to evaluate recent modification of land-atmosphere N exchange and ecosystem function (Holland et al., 2004).     
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This data set contains 11 data granules
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Granule Name Variables Metadata Preview Image
    EMEP dry HNO3+NO3 annual mean with HNO3 Vd nitrogen deposition Projection: WGS 84
Spatial Extent: N: 70.5, S: 35.5, E: 44.5, W: -10
Start DateTime: 1989-01-01
End DateTime: 1994-12-31
EMEP dry HNO3+NO3 annual mean with HNO3 Vd
 
    EMEP dry HNO3+NO3 annual mean with NO3 Vd nitrogen deposition Projection: WGS 84
Spatial Extent: N: 70.5, S: 35.5, E: 44.5, W: -10
Start DateTime: 1989-01-01
End DateTime: 1994-12-31
EMEP dry HNO3+NO3 annual mean with NO3 Vd
 
    EMEP dry NH4 annual mean with particulate Vd nitrogen deposition Projection: WGS 84
Spatial Extent: N: 70.5, S: 35.5, E: 44.5, W: -10
Start DateTime: 1989-01-01
End DateTime: 1994-12-31
EMEP dry NH4 annual mean with particulate Vd
 
    EMEP dry NO2 annual mean with NO2 Vd nitrogen deposition Projection: WGS 84
Spatial Extent: N: 70.5, S: 35.5, E: 44.5, W: -10
Start DateTime: 1989-01-01
End DateTime: 1994-12-31
EMEP dry NO2 annual mean with NO2 Vd
 
    EMEP wet NH4 annual mean nitrogen deposition Projection: WGS 84
Spatial Extent: N: 70.5, S: 35.5, E: 44.5, W: -10
Start DateTime: 1978-01-01
End DateTime: 1994-12-31
EMEP wet NH4 annual mean
 
    EMEP wet NO3 annual mean nitrogen deposition Projection: WGS 84
Spatial Extent: N: 70.5, S: 35.5, E: 44.5, W: -10
Start DateTime: 1978-01-01
End DateTime: 1994-12-31
EMEP wet NO3 annual mean
 
    NADP wet NH4 annual mean nitrogen deposition Projection: WGS 84
Spatial Extent: N: 49, S: 25, E: -66.5, W: -124
Start DateTime: 1978-01-01
End DateTime: 1994-12-31
NADP wet NH4 annual mean
 
    NADP wet NO3 annual mean nitrogen deposition Projection: WGS 84
Spatial Extent: N: 49, S: 25, E: -66.5, W: -124
Start DateTime: 1978-01-01
End DateTime: 1994-12-31
NADP wet NO3 annual mean
 
    NDDN dry HNO3 annual mean with HNO3 Vd nitrogen deposition Projection: WGS 84
Spatial Extent: N: 49, S: 25, E: -66.5, W: -124
Start DateTime: 1989-01-01
End DateTime: 1994-12-31
NDDN dry HNO3 annual mean with HNO3 Vd
 
    NDDN dry NH4 annual mean with Particulate Vd nitrogen deposition Projection: WGS 84
Spatial Extent: N: 49, S: 25, E: -66.5, W: -124
Start DateTime: 1989-01-01
End DateTime: 1994-12-31
NDDN dry NH4 annual mean with Particulate Vd