New service endpoint

A selection of the CAMS European air quality ensemble surface forecast layers from the new WMS server (apps.ecmwf.int) can be found here:

https://apps.ecmwf.int/wms/?token=public&request=GetCapabilities&version=1.3.0

Layer names

composition_europe_<VARIABLE>_forecast_surface

where VARIABLE can have one of following values:

ammonia, birch_pollen, carbon_monoxide, dust, grass_pollen, nitrogen_dioxide, nitrogen_monoxide, non_methane_vocs, 
olive_pollen, ozone, particulate_matter_10um, particulate_matter_2.5um, peroxyacyl_nitrates, pm10_wildfires, 
pm2.5_anthropogenic_fossil_fuel_carbon, pm2.5_anthropogenic_wood_burning_carbon, ragweed_pollen, 
secondary_inorganic_aerosol, sulphur_dioxide

Other information

Here is a sample request:

https://apps.ecmwf.int/wms/?service=wms&VERSION=1.3.0&token=public&LAYERS=composition_europe_pol_birch_forecast_surface&FORMAT=image/png&REQUEST=GetMap&CRS=EPSG:4326&BBOX=30.05,-24.95,71.95,44.95&WIDTH=810&HEIGHT=495

and gallery of all the available layers:

CAMS European air quality forecast WMS gallery

A few points:

• based on usage statistics initially only hourly ensemble surface forecast fields are available
• the names of the layers have changed, the CAMS European air quality surface forecast layers are named composition_europe_VARIABLE_forecast_surface; to ease the migration, previous names are encoded in the GetCapabilities response as "legacy name: OLD_NAME" keywords
• the default styles and the style names are the same as before the migration