CASTNET ANNUAL, QUARTERLY, WEEKLY DEPOSITION
Description:
A zip file containing 7 files:
castnet.gif: map of CASTNet sites
sites.zip: site information for all sites, including geographic information and current operating status
velan.zip: annual dry deposition flux rates, velocities, and concentrations for all sites as estimated by the MultiLayer Model (MLM), aggregated from VELQR
velqr.zip: quarterly dry deposition flux rates, velocities, and concentrations for al sites as estimated by the MLM, agregatred from VELWD
velwk.zip: weekly dry deposition flux rates, velocities, and concentrations for al sites as estimated by the MLM, aggregated from hourly values
drychem.zip: weekly dry deposition sample results and concentrations for al sites, based on filterpack analyses and flow volumes
wetdep.zip: weekly wet deposition sample results and concentrations for al wet deposition sites
Record Details:
Record Type:DATA SET
Product Published Date:12/31/1998
Record Last Revised:12/10/2002
Record ID:
16119
Access Procedures
:http://www.epa.gov/eims/files/ord-nerl/Castnet.zip
Data Elements:
Data Element
:SITE_ID
Data Type
:CHARACTER
Data Element Description
:site identification code
Max Value Length
:6
Data Element
:NH4_CONC
Data Type
:NUMBER
Data Element Description
:mean ammonium concentration over time period, ug/m3
Max Value Length
:4
Data Element
:NH4_FLUX
Data Type
:NUMBER
Data Element Description
:total ammonium flux over time period, kg/hectare
Max Value Length
:4
Data Element
:NO3_CONC
Data Type
:NUMBER
Data Element Description
:mean nitrate concentration over time period, ug/m3
Max Value Length
:4
Data Element
:NO3_FLUX
Data Type
:NUMBER
Data Element Description
:total nitrate flux over time period, kg/hectare
Max Value Length
:4
Data Element
:SO4_CONC
Data Type
:NUMBER
Data Element Description
:mean sulfate concentration over time period, ug/m3
Max Value Length
:4
Data Element
:SO4_FLUX
Data Type
:NUMBER
Data Element Description
:total sulfate flux over time period, kg/hectare
Max Value Length
:4
Data Element
:PARTICULATE_VD
Data Type
:NUMBER
Data Element Description
:mean particulate deposition velocity over time period, used forSO4_FLUX, NO3_FLUX, and NH4_FLUX, cm/sec
Max Value Length
:4
Data Element
:HNO3_CONC
Data Type
:NUMBER
Data Element Description
:mean nitric acid concentration over time period, ug/m3
Max Value Length
:4
Data Element
:HNO3_FLUX
Data Type
:NUMBER
Data Element Description
:total nitric acid flux over time period, kg/hectare
Max Value Length
:4
Data Element
:HNO3_VD
Data Type
:NUMBER
Data Element Description
:mean nitric acid deposition velocity over time period, cm/sec
Max Value Length
:4
Data Element
:SO2_CONC
Data Type
:NUMBER
Data Element Description
:mean sulfur dioxide concentration over time period, ug/m3
Max Value Length
:4
Data Element
:SO2_FLUX
Data Type
:NUMBER
Data Element Description
:total sulfur dioxide flux over time period, kg/hectare
Max Value Length
:4
Data Element
:SO2_VD
Data Type
:NUMBER
Data Element Description
:mean sulfur dioxide deposition velocity, cm/sec
Max Value Length
:4
Data Element
:OZONE_CONC
Data Type
:NUMBER
Data Element Description
:mean ozone concentration over time period, ppb
Max Value Length
:4
Data Element
:OZONE_FLUX
Data Type
:NUMBER
Data Element Description
:total ozone flux over time period, kg/hectare
Max Value Length
:4
Data Element
:OZONE_VD
Data Type
:NUMBER
Data Element Description
:mean ozone deposition velocity, cm/sec
Max Value Length
:4