CAWCR Upper Ocean Thermal Website

QuOTA

(Quality Controlled Ocean Temperature Archive)

The Quota Project is aimed at building a high quality upper ocean temperature dataset for the Indian Ocean and the South-western Pacific (east of the dateline). This should allow close examination of the seasonal cycle of storage and advection in the upper ocean, and in particular the cycles of equatorial and boundary currents. Such a climatology could help provide a more accurate basis for model inter-comparisons. It also allows better tracking of changes in the ocean through time.

The QuOTA project involves NOAA-IPRC and CMAR jointly undertaking to build a very high quality ocean thermal data archive by applying methods and expertise developed through the NOAA-IPRC/CMAR IOTA (Indian Ocean Thermal Archive) collaboration which was established in 1998.

Quality control of the data is done by automated processes, followed by 'hand-QC' of data that fails the automated test. This results in a data set containing very little 'bad' data and any that remains is usually subtly faulty, having little impact on most analyses.

A description of the software used to hand-QC the data (Mquest), and the software is available here. Download the paper describing the process in detail (Gronell, A., and S.E. Wijffels. 2008. A Semiautomated Approach for Quality Controlling Large Historical Ocean Temperature Archives. Journal Atmospheric and Oceanic Technology. v25, pp990-1003)

QuOTA regions: The red area is the Indian Ocean region, green is the Tasman/Pacific Ocean region.

 

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