The workshop agenda will address the overarching question 'Where in the global oceans should spatial and temporal surveys be conducted to discern climatologically-relevant changes in water-column inventories of methane and nitrous oxide?' Therefore we will first evaluate our existing knowledge and then discuss how to address the gaps to achieve a more complete understanding of methane and nitrous oxide in the marine environment. The agenda will be shaped with input from participants and the wider community prior to the workshop.

Draft agenda for OCB Oceanic Methane and Nitrous Oxide Workshop

October 28-31, 2018
UCLA Lake Arrowhead Conference Center


Sunday, October 28

Check-in begins at 4pm and dinner is at 6.30pm

Evening Focus: Why the workshop is needed and its objectives

  • Welcome
  • Keynote talk (speaker to be announced)


Monday, October 29

Focus: What do we know and what are we doing?

  • Dissolved methane and nitrous oxide from the coast to the blue water
    • Highlights from coastal environments, vent and seep environments, the open ocean, oxygen-minimum zones
  • Sources and sinks of methane and nitrous oxide in the water-column?
    • Physical processes, Biochemical changes associated with microbial metabolism; Use of methane and nitrous oxide isotopes
  • How well can we constrain water-column concentrations of methane and nitrous oxide?
    • Results from recent intercomparison of methane and nitrous oxide; in situ sensors; use of remote observations (satellite, plane, aerial vehicle)
  • How do observations compare with modeled predictions of methane and nitrous oxide?
    • Nitrogen and methane cycle, Nitrous oxide and oxygen; Emissions of methane from seafloor and to the atmosphere

Evening events

  • Keynote talk (speaker to be announced)
  • Poster session: ‘Oceanic methane and nitrous oxide: What we know and what we need to know’ (continues on Tuesday evening)


Tuesday, October 30

Focus: What do we need to know and What do we need to do?

Morning: Breakout into small groups to discuss topics chosen from the prior day’s discussions. Three potential examples are provided below:

  • Small group 1: Ocean expeditions: Continuity between disparate cruises, ground-truthing models and remote observations
  • Small group 2: Making trace gas measurements better: Lab analysis, in situ technology
  • Small group 3: Other pertinent measurements e.g. laboratory-based work, microbial community composition

Afternoon: Reporting of small group discussions to the whole group

Evening: Displays from small group discussions as a ‘living poster’ and continuation of Monday's poster session


Wednesday October 31

Half day wrapping up at noon

Focus: Where do we go from here and wrap-up

  • Summary of meeting and discussion items
  • Next steps
  • Summary of potential scientific proposals and perspective articles