See Web page on TMAP numerical modeling experiments . The ability of the TAO array to observe WWEs is marginal, and is being determined. The ability of our present and proposed tropical observing systems to measure the changes that are important for SIP is a continuing assessment activity. A major summary of the space and time scales of thermal variability as measured by the TAO array was completed, and much progress was made on a similar study of the scales of surface wind variability. An ensemble of ocean model experiments was carried out so that detailed sampling studies of the effectiveness of the present observing system can be examined.
Work continues on aspects of longer time scale problems as well.
The variability of surface pC02 in the North Pacific was examined with other Ocean Climate Research Division scientists. Global studies of the uptake and redistribution of CFCs continued with Department of Energy and National Science Foundation collaborators. Continue tropical Pacific data analysis and ocean modeling work in support of NOAA's Seasonal to Interannual Prediction mission. This includes analysis of model hindcasts of previous ENSO and Cold Event periods, studies of the roles of westerly wind events in ENSO periods, trying to understand the mechanisms responsible for the seasonal cycle of upper ocean currents and temperatures, and idealized process studies. Complete the near-global composite description of ENSO and Cold Events, which began with the sea level pressure composite study described above.