Abstract
The mapping methods of the trace gas concentration profiles are proposed in this paper. Path Integrated Concentration (PIC) data, measured by an Open‐Path Fourier Transform Infrared (OP‐FTIR) Remote Sensing system, was utilized to reconstruct spatial maps of three hazardous volatile organic compounds (chloroform, acetone, and methylene chloride) on a two‐dimensional plane. The results illustrate that the measured concentration data for gases during 120–400 seconds could be collected as the quasi‐stationary concentration. The triangle‐based cubic interpolation of the PIC was more accurate than other methods, such as linear interpolation, nearest neighbor interpolation, and v4 griddata method. Reconstruction results using the “cubic” method and real measurements show remarkably good agreement, and their difference is less than 5.2%. The maps based cubic interpolation showed that the method is rapid and simple, and can yield smooth surfaces of the spatial distribution of gases in ambient air.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call