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GCOS Implementation Plan - WMO

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<strong>Implementation</strong> <strong>Plan</strong> for the Global Observing System for Climate in Support of the UNFCCC<br />

(2010 Update)<br />

including the higher-quality VOSClim subset, on parts of the Tropical Mooring Network, and on the<br />

Reference Buoy Network. Many of these measurements have been operational over the last 30<br />

years; the data are exchanged and inserted into the operational meteorological WWW system and are<br />

subject to quality-control procedures at the time of data acquisition and again at the analysis centres.<br />

Of particular concern is that surface pressure sensors are not included on all drifting buoys. Although<br />

there has been a significant improvement in recent years, particularly in the extra-Tropics where<br />

surface pressure measurements are most useful, the OOPC, working through the Joint Technical<br />

Commission for Oceanography and Marine Meteorology (JCOMM), and the national agencies that<br />

deploy drifting buoys, should endeavour to ensure that surface pressure sensors are included as a<br />

component of the suite of instruments on all buoys deployed (see section 5.1).<br />

Action A6 65 [IP-04 A5]<br />

Action: Seek cooperation from organizations operating drifting buoy programmes to incorporate<br />

atmospheric pressure sensors as a matter of routine.<br />

Who: Parties deploying drifting buoys and buoy-operating organizations, coordinated through<br />

JCOMM, with advice from OOPC and AOPC.<br />

Time-Frame: Complete by 2014.<br />

Performance Indicator: Percentage of buoys with sea-level pressure (SLP) sensors.<br />

Annual Cost Implications:

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