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). Only data from sites that were designated as regionally representative were used in the mapping. Wet 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. Links to annual and five-year average maps are available in the associated resources.

Basic view

Metadata Record Information

File Identifier
e8896575-1fb8-4e53-8acd-8579c3c055c2 XML
Date Stamp
2024-03-27T19:34:50
Metadata language

eng; CAN
Character set
UTF8
Hierarchy Level
Dataset
Point of contact
  Government of Canada; Environment and Climate Change Canada; Science and Technology Branch/Atmospheric Science and Technology/Air Quality Research Division - Environment and Climate Change Canada
4905 Dufferin St. , Toronto , Ontario , M3H 5T4 , Canada
 

Data identification

Date (Publication)
2020-03-09
Date (Creation)
2019-06-13
Status
On going
Metadata language

eng; CAN
Character set
UTF8
Topic category
  • Environment
Maintenance and Update Frequency
As needed
Spatial representation type
Vector
Point of contact
  Government of Canada; Environment and Climate Change Canada; Science and Technology Branch/Atmospheric Science and Technology/Air Quality Research Division - NAtChem Database and Analysis Facility
Toronto , Ontario , M3H 5T4 , Canada

Keywords

Theme

  • 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

Government of Canada Core Subject Thesaurus

  • Air quality

Business Functions

  • Provide Air Quality/UV Information Products and Services

  • Monitor Air Quality and UV Parameters and Manage Data
 
Use Limitation

Open Government Licence - Canada ( http://open.canada.ca/en/open-government-licence-canada )

Access Constraints
License
Use Constraints
License
Begin Date
1981-01-01

Extent

N
S
E
W
thumbnail


 
 

Ref. system Reference Systems

Reference system identifier
http://www.epsg-registry.org / EPSG:3978 /
 

Distribution

Distribution Formats

Distribution format
  • ESRI REST ( Unknown )

  • WMS ( unknown )

 
Point of contact
  Government of Canada; Environment and Climate Change Canada; Science and Technology Branch/Atmospheric Science and Technology/Air Quality Research Division - Environment and Climate Change Canada
4905 Dufferin St. , Toronto , Ontario , M3H 5T4 , Canada
 
 

Overviews

overview
animation_dépôt_NH4_deposition_1981-2017.gif
overview
animation_dépôt_NO3_deposition_1981-2017.gif
overview
animation_dépôt_xSO4_deposition_1981-2017.gif

N
S
E
W
thumbnail


Keywords

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
Monitor Air Quality and UV Parameters and Manage Data Provide Air Quality/UV Information Products and Services
Government of Canada Core Subject Thesaurus
Air quality

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