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Argo Status and Issues for OOPC-12: Array, Data Quality, and Maintenance Challenges

Overview of the Argo array status and issues as of May 2007, including float deployment percentages, instrumentation updates, collaboration efforts, data quality concerns, sustained maintenance needs, and future challenges.

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Argo Status and Issues for OOPC-12: Array, Data Quality, and Maintenance Challenges

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  1. Argo status and issues for OOPC-12 May 2007

  2. The array April 10 2007 2851 floats - 95% The data April 2007 55% DMQC

  3. Instrumentation • Lithium batteries • Iridium • Beached float recovery • New float models Collaboration • 24 countries contribute floats - Kenya next • Many more (inc. Mozambique, South Africa, Iceland. Indonesia) assist with deployments. • Entraining more - Euro Argo (Greece, Malta, Portugal, Poland, Romania, Bulgaria)

  4. Issues The array Hemispheric imbalance Move 280 floats from N to S

  5. Standard error of estimate 0-750m ocean heat content Research ships Using Argo XBTs Argo 1960 1970 1980 1990 2000 Issues Data quality - a cautionary tale - I Lyman, Willis and Johnson, GRL 2006

  6. Issues Data quality - a cautionary tale - II No Argo data All data minus FSI Solo All data All Argo minus FSI Solo Data quality control must always be a high priority area

  7. More issues Sustained maintenance phase • Funding - 3000 floats is only the first key step - sustained funding needed (make the case nationally) - infrastructure • Maintaining the array - sustained funding - need to extend float lifetime - deployment opportunities • Calibration and quality - reference data sets - link RT and DM QC • Dialogue with users • When will it end? - 5 years of 3000±250 floats

  8. More issues Sustained maintenance phase • New sensors - dissolved oxygen (Friends of oxygen) - positive - more resources - bigger user community - negative - EEZ issues • Educational outreach - Euro Argo • Pilot programme for how long?

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