Water Body & Soil Greenhouse Gas Flux Monitoring (Methane Floating Chamber System)

Designed for multi-point observation in rivers, lakes, reservoirs, and wetlands, the system records CH₄ and CO₂ simultaneously in a single floating chamber, with modular and low-power design for long-term monitoring. It complements eddy covariance (EC): EC captures regional budgets, while the chamber array locates emission hotspots and separates bubbling from diffusion.

• Simultaneous CH₄ and CO₂ measurement: same chamber, same time axis, recording temperature, humidity, and pressure together
• Dual measurement modes: diffusion mode for long-term low-flux monitoring; short-loop mode for faster response
• Modular design: measurement, ventilation, main-control/communication, and battery modules each in independent IP67 housings
• Humidity, water, and wave resistance: measurement cell connects to headspace through a waterproof breathable membrane; functional after 30 minutes at 1 m depth
• Low-cost deployment: industrial-grade sensors, no communication fees, optional 4G remote transmission
• Low power, long endurance: average power about 0.9–1.2 W; 800 Wh battery runs ≥3 weeks continuously
• Complete, open-format data: raw data stored locally; periodic results, CH₄ ebullition events, and CO₂ concentrations output together