Field Test of a Remote Multi-Path CLaDS Methane Sensor

Genevieve Plant; Michal Nikodem; Phil Mulhall; Ruth K Varner; David Sonnenfroh; Gerard Wysocki

doi:10.3390/s150921315

Field Test of a Remote Multi-Path CLaDS Methane Sensor

Sensors (Basel). 2015 Aug 28;15(9):21315-26. doi: 10.3390/s150921315.

Authors

Genevieve Plant¹, Michal Nikodem^{2

3}, Phil Mulhall⁴, Ruth K Varner⁵, David Sonnenfroh⁶, Gerard Wysocki⁷

Affiliations

¹ Electrical Engineering Department, Princeton University, Princeton, NJ 08544, USA. gplant@princeton.edu.
² Electrical Engineering Department, Princeton University, Princeton, NJ 08544, USA. mnikodem@princeton.edu.
³ Wroclaw Research Centre EIT+, 54-066 Wrocław, Poland. mnikodem@princeton.edu.
⁴ Physical Sciences Inc., 20 New England Business Center, Andover, MA 01810, USA. mulhall@psicorp.com.
⁵ Institute for the Study of Earth, Oceans, and Space, and Department of Earth Sciences, University of New Hampshire, Durham, NH 03824, USA. ruth.varner@unh.edu.
⁶ Physical Sciences Inc., 20 New England Business Center, Andover, MA 01810, USA. sonnenfroh@psicorp.com.
⁷ Electrical Engineering Department, Princeton University, Princeton, NJ 08544, USA. gwysocki@princeton.edu.

Abstract

Existing technologies for quantifying methane emissions are often limited to single point sensors, making large area environmental observations challenging. We demonstrate the operation of a remote, multi-path system using Chirped Laser Dispersion Spectroscopy (CLaDS) for quantification of atmospheric methane concentrations over extended areas, a technology that shows potential for monitoring emissions from wetlands.

Keywords: laser spectroscopy; optical dispersion spectroscopy; remote sensing.