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
RI_414
  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
Status
onGoing; enContinue RI_596
RI_414
  - ( )
Canada
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
N
S
E
W
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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 )

RI_414
  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
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
RI_414
  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

Spatial extent

N
S
E
W
thumbnail


Keywords

Business Functions
Monitor Air Quality and UV Parameters and Manage Data Provide Air Quality/UV Information Products and Services

Provided by

Associated resources

Not available