About STILT viewer

On this page:

The STILT viewer is available at https://stilt.icos-cp.eu/viewer/.
You will have to log in through ATMO-ACCESS to use it and will be automatically redirected to their login page.

Step1: Select the station

The station can be selected either using the drop down menu or by locating it on the map in the center of the page.

Step 2: Select the year

The drop down menu lists those years for which STILT simulation results are available. In case observations are available for comparison, this is indicated in the drop down list as well. The European ObsPack collection includes the latest ICOS release of CO2 and CH4 data as well as the ICOS near real time data.

After the selection of station and year, the footprints and CO2 or CH4 time series will be loaded.

Step 3: Select tracer: CO2 or CH4

You can switch between CO2 and CH4 concentration time series. The footprints are the same for both tracers.

Step 4: Select components of CO2 or CH4

By default the STILT-simulated concentration time series (blue line) is shown and - if available - the observed CO2 or CH4 concentration time series (black line) is included as well. Values correspond to the left hand side (primary) y-axis.

In the model simulations the contributions from different fluxes can easily be separated.

For CO2 the following contributions can be viewed separately:

  • Contributions from natural fluxes co2.bio, split into:
    • co2.bio.gee uptake of CO2 by photosynthesis 
    • co2.bio.resp release of CO2 by respiration
  • Contributions from anthropogenic emissions, split into: 
    • fuel-type specific contributions co2.fuel:
      • co2.fuel.coal, co2.fuel.oil, co2.fuel.gas, co2.fuel.bio, co2.fuel.waste from burning of coal, oil, gas, biofuel, and waste
      • co2.cement from cement production
      • co2.non_fuel from other processes not related to fuel burning
    • or emissions from different source categories:
      • co2.energy includes energy production and refineries
      • co2.industry includes industrial processes and manufacturing
      • co2.transport includes road transportation, railways, shipping, and aviation
      • co2.residential is residential heating
      • co2.other_categories includes fuel exploitation and agricultural waste burning
  • Contributions from sources and sinks outside the model domain co2.background

For CH4 the following contributions can be viewed separately:

  • Contributions from anthropogenic emissions ch4.anthropogenic, split into: 
    • ch4.agriculture includes enteric fermentation and manure management 
    • ch4.waste includes landfills and waste water management
    • ch4.energy includes energy production, refineries and transmission
    • ch4.other_categories includes transport, industrial processes, and residential heating 
  • Contributions from natural fluxes ch4.natural, split into:
    • ch4.weltands includes emissions from peatlands and inundated soils
    • ch4.soil_uptake is uptake in dry mineral soils 
    • ch4.wildfire is biomass burning emissions
    • ch4.other_natural includes emissions from lakes, ocean, and wet mineral soils
  • Contributions from sources and sinks outside the model domain ch4.background

Step 5: Animate the footprints

By default the footprint for the central time step of the time series is displayed on the map. You can step through time with ‹ and ›, or display a continuous animation of the footprints with ▶.

More options:

  • Zoom in on time axis to display selected range of the time series
  • Zoom in on concentration axis
  • Zoom in on footprint map
  • Show / hide station symbol on footprint map