Methane Conference 2019

Industrial Methane Measurement Conference 2019 - Abstract

Abstract Title: Airborne ultra-light spectrometer for greenhouse gases emission quantification
Presenter Name: Mr Antoine Dejob
Co-authors:Dr Lilian Joly
Mr Ludovic Donnat
Mr Laurent Cazes
Company/Organisation: CNRS / GSMA
Country: France

Abstract Information :

TOTAL and CNRS (1) through the AUSEA (2) project, developed a CO2 & CH4 sensor embarked on drone in the aim at measuring GHG (3) emissions of TOTAL's industrial operation. The sensor is a high-performance multi-gas spectrometer developed by GSMA (4) for monitoring of atmospheric concentration of GHG. Tough challenges are overcome to made it embarked on a drone: weight reduction, perturbation management, soil/air communication. For emission calculation, advanced algorithms have been developed with optimisation of flights and plume reconstruction.

Sensor, algorithms and global system have been developed and validated thanks to field trials made on platform test TADI (5) of TOTAL in Lacq, south of France. Experimentations consist in controlled gas leaks of methane or CO2 with a large participation of research institutes, product manufacturers and innovative startups for testing / validation of various measurements systems: gas lidar, hyperspectral & multi spectral camera, acoustic sensors … . Two campaigns have been done with AUSEA project in 2017 and 2018. 2017 trials have been done with a 3 gases sensor (CH4, CO2, H2O) embarked on a tethered balloon moved 'manually' to make sure that the sensor was within the plume. Several ways of displacement have been evaluated in the aim at testing, developing quantification algorithms. In 2018, taking into account 2017 results, a low weight, two gases (CH4, CO2) system has been developed and embarked on a drone with an optimized way of displacement. Emission area was a punctual source in free field in 2017 and became multipoint and diffuse sources in an industrial representative environment in 2018.

Developments and results - performances and limitations, are discussed in this paper and perspectives of the project are presented.

  1. Centre National de la Recherche Scientifique
  2. Airborne Ultra-light Spectrometer for Environmental Applications
  3. Green House Gases
  4. Groupe de Spectrometrie Moleculaire et Atmospherique
  5. Transverse Anomaly Detection Infrastructure