Table 2. Composition of the enhanced (4.5 sigma trimming) and standard (3.5 sigma) Release 1a statistics, and of the 1980-91 interim (3.5 sigma) statistics by platform type and variable (for observed variables only with abbreviations as given in Table 1, except that here W and R refer to wind and psychrometric data in general). For a given platform type, "x" indicates that no data were used, and "-" indicates data not observed, with some experimental exceptions, e.g., NDBC moored buoy and Coastal-Marine Automated Network (C-MAN) humidity observations.


                                 Enhanced         Standard          Interim
Platform type                   S A W P R C      S A W P R C      S A W P R C
===============================================================================
Ships (& Ocean Wea. Stat.)      S A W P R C      S A W P R C      S A W P R C
Drifting buoys*                 S A x P - -      x x x x - -      S A W P - -
Moored buoys**                  S A W P - -      x x x x - -      S A W P - -
EPOCS daily buoys/islands       S A W P - -      x x x x - -      x x x x - -
Fishing fleet data              S - x - - C      x - x - - x      x - x - - x
Rigs and platforms              S A W P R C      x x x x x x      S A W P R C
C-MAN                           x x x x - -      x x x x - -      S A W P - -

* Note that the enhanced statistics include some drifting buoy data that passed the MEDS quality control as acceptable but that occurred in 2-degree boxes for which 1950-1979 trimming limits could not be computed.

** Includes NDBC buoys (reduced from hourly to 3-hourly for 1980-92 in the enhanced statistics, and for 1985-91 in the interim statistics), PMEL TOGA/TAO ATLAS buoys, and foreign moored buoys.


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