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Feedback from AST

Feedback from AST. D. Roemmich ADMT-10 Toulouse 30 September 2009. 2 pathways forward*. “Consolidation” of the Argo core program is the highest priority (60 o S to 60 o N, T/S, ocean interior, 0-2000m). Float technology (smaller, longer-lived, more capable, scalable)

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Feedback from AST

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  1. Feedback from AST D. Roemmich ADMT-10 Toulouse 30 September 2009

  2. 2 pathways forward* • “Consolidation” of the Argo core program is the highest priority (60oS to 60oN, T/S, ocean interior, 0-2000m). • Float technology (smaller, longer-lived, more capable, scalable) • Coverage (access is a problem especially the southern hemisphere; full coverage requires ~3200 “good” floats) • Data quality (strongest requirements are for global change research; microleak problem !!! underlines the need for a proactive and technically capable team) * See Freeland et al OceanObs09 Argo Community White paper + related plenary papers, community white papers, additional contributions.

  3. 2. Extending Argo (Freeland et al. CWP) • Autonomous platforms are cost effective and can operate anywhere. • Argo should be extended (in some cases floats + gliders) • Toward global coverage, as feasible • High latitudes (van Wijket al. AC, Rintoulet al. CWP, Sagenet al. AC, Lee et al. CWP) • Additional marginal seas (Testoret al. CWP) • Deep ocean (Garzoliet al., CWP) • Boundary current regions (Cronin et al. CWP) • For increased applications • Surface layer (Donlonet al. CWP) • Mixing (MacKinnon et al. CWP) • New sensors (O2 - Gruber et al. CWP, Bio – Claustreet al. CWP)

  4. 2. Extending Argo (continued) • Some extensions are relatively inexpensive and technically simple with 2-way communications (surface layer, mixing, active array management (??)). • Some are feasible and require ~10-20% additional resources (high latitudes, marginal seas, oxygen (?), …). • Some require substantial new resources and significant technical development (deep ocean, boundary currents). • Extensions are important, but cannot be undertaken without new resources, and must not be done at the expense of the core mission. • The impact of OceanObs09 will require time to see whether the community consensus on global observations can translate into substantial new resources.

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