Wet Deposition Maps
Patterns of wet deposition of the nitrate (NO3), non-sea-salt sulfate (xSO4) and ammonium (NH4) ions across areas of Canada and the United States are based on measurements of precipitation depth and ion concentrations in precipitation samples. xSO4 refers to the wet deposition of sulfate with the sea-salt sulfate contribution removed at coastal sites. These measurements were collected and quality controlled by their respective networks: in Canada, the federal Canadian Air and Precipitation Monitoring Network (CAPMoN) and provincial or territorial networks in Alberta, New Brunswick, the Northwest Territories, Nova Scotia, Ontario and Quebec. In the United States, wet deposition measurements were made by two coordinated networks: the National Atmospheric Deposition Program (NADP) / National Trends Network (NTN) and the NADP/Atmospheric Integrated Research Monitoring Network (AIRMoN).
Total annual deposition from each site was screened for completeness using the following criteria: (1) precipitation amounts were recorded for >90% of the year and >60% of each quarter, and (2) a nitrate/sulfate/ammonium concentration was reported for >70% of the precipitation measured over the year and for >60% of each quarter. Only data from sites that were designated as regionally representative were used in the mapping.
Annual deposition amounts were interpolated by ordinary kriging using ArcMap Geostatistical Analyst. The map is limited to the contiguous U.S. and southeastern or southern Canada because outside that region, the interpolation error exceeds 30% due to the larger distances between stations.
The units for annual wet deposition fluxes are in kg of NO3, SO4 or NH4 per hectare (kg ha-1). Wet deposition maps are available as geodatabase files (*.gdb) compatible with geospatial software (e.g. ESRI ArcGIS) and as a KMZ file compatible with virtual globe software (e.g. Google Earth™). Maps can also be viewed online via Open Maps and the ArcGIS online viewer.
Simple
- Date ( RI_367 )
- 2020-03-09
- Date ( RI_366 )
- 2019-06-13
- Identifier
- 10.18164/e8896575-1fb8-4e53-8acd-8579c3c055c2
- Identifier
- 10.18164/e8896575-1fb8-4e53-8acd-8579c3c055c2
- Status
- onGoing; enContinue RI_596
- Maintenance and update frequency
- asNeeded; auBesoin RI_540
- Keywords ( RI_528 )
-
- Air Quality, Atmospheric Monitoring, Atmospheric Precipitation Chemistry, Wet Deposition, NO3, Nitrate, SO4, Sulfate, Sulphate, NH4, ammonium, nitrogen, sulfur, sulphur, monitoring, atmospheric deposition, CAPMoN, Map, Kriging, Interpolate, Trend, Data product.
- Atmosphere
- Business Functions Fonctions de l'entreprise ( Theme )
-
- Provide Air Quality/UV Information Products and Services
- Monitor Air Quality and UV Parameters and Manage Data
- Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
-
- Air quality
- Use limitation
- Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)
- Access constraints
- license; licence RI_606
- Use constraints
- license; licence RI_606
- Spatial representation type
- vector; vecteur RI_635
- Metadata language
- eng; CAN
- Character set
- utf8; utf8 RI_458
- Topic category
-
- Environment
- Begin date
- 1981-01-01
))
- Supplemental Information
- Supporting Projects: Canadian National Atmospheric Chemistry Database and Analysis System (NAtChem)
- Reference system identifier
- http://www.epsg-registry.org / EPSG:3978 /
- Distribution format
-
-
ESRI REST
(
Unknown
)
-
WMS
(
unknown
)
-
ESRI REST
(
Unknown
)
- OnLine resource
-
Wet Deposition of NO3 - 2017
(
ESRI REST: Map Service
)
Web Service;ESRI REST;eng
- OnLine resource
-
Wet Deposition of NO3 - 2017
(
ESRI REST: Map Service
)
Web Service;ESRI REST;fra
- OnLine resource
-
NH4 wet deposition map
(
HTTPS
)
Web Service;ESRI REST;eng
- OnLine resource
-
NH4 wet deposition map
(
HTTPS
)
Web Service;ESRI REST;fra
- OnLine resource
-
NH4 wet deposition maps
(
HTTPS
)
Web Service;WMS;eng
- OnLine resource
-
NH4 wet deposition maps
(
HTTPS
)
Web Service;WMS;fra
- OnLine resource
-
NO3 wet deposition maps
(
HTTPS
)
Web Service;ESRI REST;eng
- OnLine resource
-
NO3 wet deposition maps
(
HTTPS
)
Web Service;ESRI REST;fra
- OnLine resource
-
NO3 wet deposition maps
(
HTTPS
)
Web Service;WMS;eng
- OnLine resource
-
NO3 wet deposition maps
(
HTTPS
)
Web Service;WMS;fra
- OnLine resource
-
xSO4 wet deposition maps
(
HTTPS
)
Web Service;ESRI REST;eng
- OnLine resource
-
xSO4 wet deposition maps
(
HTTPS
)
Web Service;ESRI REST;fra
- OnLine resource
-
xSO4 wet deposition maps
(
HTTPS
)
Web Service;WMS;eng
- OnLine resource
-
xSO4 wet deposition maps
(
HTTPS
)
Web Service;WMS;fra
- OnLine resource
-
Wet Deposition of NO3 - 2017
(
OGC:WMS
)
Web Service;WMS;eng
- OnLine resource
-
Wet Deposition of NO3 - 2017
(
OGC:WMS
)
Web Service;WMS;fra
- OnLine resource
-
View ECCC Data Mart (English) - GDB, KMZ file formats
(
HTTPS
)
Web Service;HTML;eng
- OnLine resource
-
View ECCC Data Mart (French) - GDB, KMZ file formats
(
HTTPS
)
Web Service;HTML;fra
- OnLine resource
-
Digital Object Identifier (DOI)
(
HTTPS
)
Web Service;XML;eng,fra
- File identifier
- e8896575-1fb8-4e53-8acd-8579c3c055c2 XML
- Metadata language
- eng; CAN
- Character set
- utf8; utf8 RI_458
- Parent identifier
- d7e7d33b-c198-4188-97fc-126c308c56fb d7e7d33b-c198-4188-97fc-126c308c56fb
- Hierarchy level
- dataset; jeuDonnées RI_622
- Date stamp
- 2023-06-08T16:08:55
- Metadata standard name
- North American Profile of ISO 19115:2003 - Geographic information - Metadata
- Metadata standard version
- Enviroment Canada - Version 1
Overviews



Spatial extent
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Provided by
