Work

CO2 Dynamics in a Mofette: Measurement and Modeling

Year: 2025

Type: article

Abstract: We investigated the CO2 emissions in a mofette gas pool located in Covasna, Romania. Using a custom-built remote sensing device, we monitored the gas concentrations, temperature, and pressure for seven months. The measurements showed both diurnal cycles and short-term bursts of CO2 emissions along with instances of erratic yield anomalies. We employed the convection-diffusion equation to estimate gas flow rates without altering the natural state of the mofette. We also developed a model that uses the measured pressure and temperature to predict the CO2 outflow yield. The model's overall predictions approximate well the observed CO2 flux. However, the subtle mismatches between these two suggest that subsurface geological processes, which require further investigation, may also influence the gas flow. This research provides insights into the dynamics of focused CO2 emissions, with potential applications in environmental monitoring and therapeutic practices.

Source: Geosciences

DOI: 10.3390/geosciences15090368

Authors: Attila Gergely, Ágnes Gál, Alexandru Szakács, Zoltán Néda

Institutions: Babeș-Bolyai University, Romanian Academy

Language: English

Topic: Atmospheric and Environmental Gas Dynamics

Subfield: Global and Planetary Change

Field: Environmental Science

Domain: Physical Sciences

SDG: Climate action

Open Access status: gold

Estimated APC paid: $2,172