# Photochemical and RadiatiOn Transport model for Extensive USe (PROTEUS)

**Authors:** Yuki Nakamura, Naoki Terada, Shungo Koyama, Tatsuya Yoshida, Hiroki Karyu, Kaori Terada, Takeshi Kuroda, Arihiro Kamada, Isao Murata, Shotaro Sakai, Yuhei Suzuki, Mirai Kobayashi, François Leblanc  
**arXiv:** [2301.02415](https://arxiv.org/abs/2301.02415)  
**Date:** 2023-01-06  
**Summary page:** https://www.summarizepaper.com/en/arxiv-id/2301.02415v1/

## Key points

- PROTEUS is a new photochemical model designed for various planetary atmospheres
- It consists of a Python GUI program and Fortran 90 modules
- PROTEUS can handle thousands or more chemical reactions efficiently
- Chemical reactions can be easily implemented using a simple string format in the GUI program
- Users can select a planet and choose specific chemical reactions intuitively on the GUI
- Selected reactions are automatically analyzed and applied to the Fortran 90 modules for simulation
- PROTEUS saves time for researchers by eliminating the need to write complex code
- Users only need to input chemical reactions into the GUI program and select them to run a new model quickly
- PROTEUS offers adaptability, flexibility, efficiency, and an intuitive user experience through its graphical interface.

## Summary

The paper presents a new photochemical model called PROTEUS (Photochemical and RadiatiOn Transport model for Extensive USe), which is designed to be flexible and adaptable for various planetary atmospheres. The model consists of a Python graphical user interface (GUI) program and Fortran 90 modules. PROTEUS offers high efficiency in dealing with thousands or more chemical reactions, while also providing an intuitive operation through the GUI. One of the key features of PROTEUS is its ability to easily implement chemical reactions into the Python GUI program using a simple string format. Users can select a planet and choose specific chemical reactions on the GUI intuitively. These selected reactions are automatically analyzed by string parsing functions in the Python GUI program and then applied to the Fortran 90 modules for simulation on the chosen planet. The main advantage of PROTEUS is its time-saving capability for researchers who need to develop new photochemical models. Instead of writing complex code, users only need to input chemical reactions into the Python GUI program and select them on the GUI interface to run a new photochemical model quickly. Overall, PROTEUS provides a powerful tool for studying planetary atmospheres by offering adaptability, flexibility, efficiency, and an intuitive user experience through its graphical interface.