siem: SImplified Emission Model

This is the SImplified Emission Model. It is a python package to create the emission file for WRF-Chem and CMAQ air quality models.

It is inspired on the work of Andrade et al. (2015), AAS4WRF, and PyChEmiss.

siem main objective is to create the emission file for cities with scarce emission data.

Installation

You can install siem using pip:

pip install siem

Or you can install the developing version by doing:

pip install git+https://github.com/quishqa/siem.git

How to use

siem has three classes: EmissionSource, PointSource, and GroupSources.

• EmissionSource: It is used to calculate and distribute emissions by using a spatial proxy.
• PointSource: It is used to distribute point emissions from a table.
• GroupSources: It is used to merge EmissionSource objects and PointSource objects into a single object. Useful to create the final emission file.

Each of these objects has the methods to_wrfchem and to_cmaq that allow us to create the emission file for WRF-Chem and CMAQ respectively.

You can check the documentation for further details:

• Tutorials
• How to guide
• Or you can check the scripts folder for examples.

Acknoledgements

We thanks IAG/USP, LAPAT and MASTER labs!