Estimation of methane emission flux at landfill surface using laser methane detector

Abstract

The aim of this study is to investigate the possibility of measuring the methane emission flux using surface methane concentration and gauge pressure byanalyzing the influence of gauge pressure on the methane emission flux and surface methane concentration, as well as the correlation between the methane emission flux and surface methane concentration. Consequently, when the surface methane concentration and the surface gauge pressure are measured simultaneously, the methane emission flux can be calculated using Darcy’ law. Furthermore, measurement data can be processed into a single whole site flux rate using geospatial interpolation techniques, such as inverse distance weighting (IDW) and ordinary kriging.