First IODE Workshop on Quality Control of Chemical Oceanographic Data Collections IOC Project Office for IODE, Oostende, Belgium 8-11 February 2010
IOC for UNESCO
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The IODE workshop on quality control (QC) of chemical oceanographic data collections was held at the IOC Project Office for IODE in Oostende, Belgium between 8 and 11 February 2010. The meeting, proposed and organized by the IODE Group of Experts on Biological and Chemical Data Management and Exchange Practices (GE-BICH), welcomed 19 experts in chemical data management as well as data producers and users from 13 countries. The objective of the workshop was to evaluate existing procedures and define a minimum set of QC tests and criteria for dissolved inorganic nutrients (phosphate, silicate, nitrate+nitrite, nitrate, nitrite, and ammonium) and dissolved oxygen in seawater. The meeting produced several outcomes. First, the meeting identified two proposals to be submitted to the IODE/JCOMM Ocean Data Standards process (1) a quality control flags scheme based on quantifiable and subjective tests; and (2) at a later stage and following consultation with the wider community, a scaled nomenclature for data processing levels for data held at data centers. The meeting also issued a number of recommendations which will be taken forward in post-workshop activities in consultation and in interaction with the wider international community. These included: (1) metadata terminology for reporting measured variables and their units as well as (2) a work plan to recommend a minimum set of numerically defined QC tests that could be adjusted to reflect broad regional to basin scales conditions. These guidelines and recommendations will be assembled on the GE-BICH wiki for peer-review before being published as a technical white paper or guideline document.