Reference Data Sets
Upper Ocean Processes Group (UOP) Ocean Reference Stations are deployed under the stratus cloud deck in the eastern tropical Pacific (Stratus), in the trade wind region of the northwest tropical Atlantic (NTAS), and 100 km north of Oahu at the WHOI Hawaii Ocean Time-series Site (WHOTS).
A particular focus for the UOP group is the collection of long-term, climate quality time series of surface meteorology and of the air-sea fluxes of heat, freshwater, and momentum at select locations known as Ocean Reference Stations (ORS). The surface meteorological data at the ORS are available via satellite telemetry, but are not placed on the GTS and are not used in atmospheric model initialization. Thus, these are independent, withheld data of use for model validation. At the same time, the processes of calibrating the meteorological sensors and quality controlling the data are rigorous and well-documented.
Typically, the surface mooring is serviced annually, and the new surface mooring is overlapped with the old mooring for one to several days. The data from each deployment, including real time data from current deployments, are available under the Current Projects button to the left.
The individual records from each deployment have been merged to make as long as possible continuous time series. Most often, the new buoy was deployed to overlap in time with the old buoy. Shipboard observations, the comparison of the old and new time series, and laboratory calibrations were used to correct drifts and select the best time series from each deployment to be used in the merging. In the case of a mooring failure and a long time gap, we have not made an attempt to bridge the gap, and the site then has more than one file.
The buoys are not reset in exactly the same location, but the time series have been merged and presented as from one site. These merged Reference Data Sets and supporting documentation will be made available at hourly, daily, and monthly time resolution under the Reference Data Sets sites listed in the left-hand navigation buttons.
A summary of the deployments at the three ORS sites is available at deploymentSummary.html.