Work Package 4

Development of the model for temporal distribution of emissions

The objective of this work package is to build a temporal model to be applied together with the spatial model developed in WP3.


This work package will consist of three tasks:

  • WP4.1 Design of the temporal model
  • WP4.2 Integration with the spatial distribution model.
  • WP4.3 Building the temporal distribution model.


WP4.1. Based on the literature review carried out in WP1.1 and the specifications agreed upon in WP1.3 the temporal model will be designed. In the design of the model, it will be ensured that the design is compatible with the design of the temporal profiles used in the EMEP model and any design currently being used for official air pollution modelling in Ireland. The model will include temporal distribution profiles on monthly, daily and hourly level. The emission source aggregation level in the temporal model will depend on the availability of statistical data with a temporal component. Due to reporting obligations to EUROSTAT, national energy statistics are available on a monthly level, and this information will be taken into account in the design of the temporal model. National data on daily and hourly level are generally scarcer, and it might be necessary to se data for either smaller areas or from other countries. 


WP4.2. The format of the temporal distribution model will depend on the outcome of WP3 regarding the format of the spatial model. To achieve the objective of an integrated model, it is important to ensure that the temporal distribution model is compatible with the spatial distribution model. Still it is important to design the spatial and the temporal models so that they are operational separately, as different uses of the output emissions might have different requirements to the format, e.g. the temporal component must be omitted when preparing spatial emissions for reporting to CLRTAP. 


WP4.3. The temporal distribution model will be built based on the design requirements as per WP4.1 taking into account the outcome of WP4.2. During this task, the project team will keep close contact with the EPA to ensure that the model will be optimised for future use, here among implementation in air pollution models. An output of WP4.3 will be animations showing the emission of selected pollutants at the spatial and temporal scale set out in the specifications defined in WP1.