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Environmental Geology

, Volume 46, Issue 8, pp 1053–1058 | Cite as

GMM—a gas monitoring module for long-term detection of methane leakage from the seafloor

  • G. Marinaro
  • G. Etiope
  • F. Gasparoni
  • D. Calore
  • S. Cenedese
  • F. Furlan
  • M. Masson
  • F. Favali
  • J. Blandin
Original Article

Abstract

A new seafloor lander module, the Gas Monitoring Module (GMM), has been developed for continuous and long-term measurements of methane concentration in seawater at the benthic boundary layer, as a result of marine environmental geology and technology synergy. The module is designed to host a series of sensors controlled and managed by a data acquisition and control system able to perform first-level data quality checks. The prototype includes semiconductor methane sensors, an H2S sensor and a CTD for temperature, salinity, pressure recording, as well as interfaces for additional sensors. The GMM can be linked to submarine cables for real-time data transmission to onshore operators and is suitable for long-term monitoring of natural gas emissions from seafloor or leakages from pipelines and boreholes.

Keywords

Methane seepage Benthic observatories Gas sensors 

Notes

Acknowledgments

The ASSEM project is funded by the European Commission (contract EVK3-2001-00038).

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Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  • G. Marinaro
    • 1
  • G. Etiope
    • 1
  • F. Gasparoni
    • 2
  • D. Calore
    • 2
  • S. Cenedese
    • 2
  • F. Furlan
    • 2
  • M. Masson
    • 3
  • F. Favali
    • 1
  • J. Blandin
    • 4
  1. 1.Istituto Nazionale di Geofisica e VulcanologiaRomeItaly
  2. 2.Tecnomare S.p.A.VeniceItaly
  3. 3.CAPSUM Technologie GMBHTrittauGermany
  4. 4.IfremerBrestFrance

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