• 223 views | 2 messages Discussion: LEAP
    Topic: Integrated Benefits Calculator (IBC) Subscribe | Previous | Next
  • Aiymgul Kerimray 9/19/2024

    Hi

    We have developed a model for an Indian state (Gujarat) and now wish to use IBC to estimate premature deaths from ambient air pollution (excluding indoor air pollution) for this state.

    In this regard we have two questions:

    1. Approach for estimating ambient PM2.5 concentration

    We have selected “Base Year concentrations derived directly from LEAP emissions” in the settings, as the model includes an emissions inventory for GHG and pollutants.

    We managed to get some results in terms of premature deaths (using Gujarat model and learning from Asiana model as a guidance).

    However, we are uncertain if the calculated concentrations for the state are accurate. The current approach in LEAP, as far as I understand that it estimates concentrations using the entire country area (India was selected in the settings). I understand that LEAP IBC, emissions are spatially distributed across the country. If that is the case (and LEAP uses Indian area), is there a way to select a state instead of the entire country in LEAP-IBC or to specify some scaling factor to convert from India to Gujarat?

    2. Key assumptions – Call function

    We created a folder for Baseline Mortality in Key Assumptions. However, we are unable to specify the baseline mortality rates. In the Asiana model, baseline mortality rates are specified using the “Call(BaselineMortality)” function.

    This is the function of the Asiana model that we were unable to replicate in our model:


    Also following function in Asiana we are unable to reproduce:


    Thank you.

    Aiymgul


  • Charlie Heaps 9/19/2024
      Best Response

    Hello Aiymgul

    I’m afraid that IBC is currently only set up to work for particular national scale models. It will not produce valid results if applied at a sub national scale (eg an Indian state).

    That’s because IBC is based on runs of the Geoschem Adjoint model for particular specific countries.

    Charlie