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     NCEP CENTRAL OPERATIONS (NCO) PLATFORM STATS - GULF OF AK                                
                         SEPTEMBER 2007                                                       
                SEA-LEVEL PRESSURE FOR ALL HOURS                                              
                                                                                              
PLATFORM   SHIP/PLAT. NAME           TYPE   NO. REPORTS    MEAN DIFF    SD DIFF    # GROSS ERR
                                                                                              
ELQB8      ARCTIC SUN                SHP        451           -0.1        1.3           0     
KF002      STIMSON                   SHP         11           -0.8        2.2           0     
NL9H       MUSTANG                   SHP         54           -0.2        1.2           0     
WADZ       COASTAL RELIANCE          SHP         64           -3.6        1.5           0     
WAHG       MIDNIGHT SUN              SHP        297           -0.7        1.4           0     
WBM5091    PT. OLIKTOK               SHP        173            0.8        1.8           0     
WBN5978    GUARDSMAN                 SHP         27           -1.3        1.9           0     
WCN3586    SAMSON MARINER            SHP          3            1.3        1.4           0     
WCQ8110    SINUK                     SHP         62           -0.5        1.4           0     
WCY2920    KENNICOTT                 SHP         17           -0.1        2.1           0     
WDC7518    PACIFIC CHALLENGER        SHP         63            0.1        2.0           0     
WDD2703    GULF RELIANCE             SHP          1           -3.4        0.0           0     
WN4201     MATANUSKA                 SHP         55           -0.4        1.7           1     
WNGW       TUSTUMENA                 SHP        207           -0.5        1.4           0     
WYH6327    MALOLO                    SHP          4            2.3        2.7           0     
                                                                                              
                                                                                              
                         SEPTEMBER 2007                                                       
                 AIR TEMPERATURE FOR ALL HOURS                                                
                                                                                              
PLATFORM   SHIP/PLAT. NAME           TYPE   NO. REPORTS    MEAN DIFF    SD DIFF    # GROSS ERR
                                                                                              
ELQB8      ARCTIC SUN                SHP        445           -0.3        1.4           0     
KF002      STIMSON                   SHP         11            1.4        1.4           0     
NL9H       MUSTANG                   SHP         54           -0.7        1.3           0     
WADZ       COASTAL RELIANCE          SHP         54            0.3        3.4           0     
WAHG       MIDNIGHT SUN              SHP        297           -0.2        1.2           0     
WBM5091    PT. OLIKTOK               SHP        173            0.1        1.4           0     
WBN5978    GUARDSMAN                 SHP         27            0.1        1.6           0     
WCN3586    SAMSON MARINER            SHP          3            1.7        1.6           0     
WCQ8110    SINUK                     SHP         62            0.0        1.6           0     
WCY2920    KENNICOTT                 SHP         16           -0.1        1.5           0     
WDC7518    PACIFIC CHALLENGER        SHP         59            0.8        1.5           0     
WDD2703    GULF RELIANCE             SHP          1            2.9        0.0           0     
WN4201     MATANUSKA                 SHP         57            1.4        2.1           0     
WNGW       TUSTUMENA                 SHP        170            2.2        2.8           0     
WYH6327    MALOLO                    SHP          4            2.5        1.8           0     
                                                                                              
                                                                                              
                         SEPTEMBER 2007                                                       
                  WIND DIRECTION FOR ALL HOURS                                                
                                                                                              
PLATFORM   SHIP/PLAT. NAME           TYPE   NO. REPORTS    MEAN DIFF    SD DIFF    # GROSS ERR
                                                                                              
ELQB8      ARCTIC SUN                SHP        431           -9.5       22.8          20     
KF002      STIMSON                   SHP         10          -20.4       20.8           1     
NL9H       MUSTANG                   SHP         53          104.2       14.5           1     
WADZ       COASTAL RELIANCE          SHP         51           -0.9       36.9          13     
WAHG       MIDNIGHT SUN              SHP        285          -16.8       26.2          12     
WBM5091    PT. OLIKTOK               SHP        156            0.2       29.2          17     
WBN5978    GUARDSMAN                 SHP         26           96.2       10.0           1     
WCN3586    SAMSON MARINER            SHP          2          -16.8       11.5           1     
WCQ8110    SINUK                     SHP         60            7.6       12.2           1     
WCY2920    KENNICOTT                 SHP         15          104.9        1.5           2     
WDC7518    PACIFIC CHALLENGER        SHP         54          -31.0       36.8           9     
WDD2703    GULF RELIANCE             SHP          1          -15.9        0.0           0     
WN4201     MATANUSKA                 SHP         47           20.3       30.5          10     
WNGW       TUSTUMENA                 SHP        178          -11.2       24.4          29     
WYH6327    MALOLO                    SHP          4           -7.5       11.7           0     
                                                                                              
                                                                                              
                         SEPTEMBER 2007                                                       
                    WIND SPEED FOR ALL HOURS                                                  
                                                                                              
PLATFORM   SHIP/PLAT. NAME           TYPE   NO. REPORTS    MEAN DIFF    SD DIFF    # GROSS ERR
                                                                                              
ELQB8      ARCTIC SUN                SHP        451            3.6        3.0           0     
KF002      STIMSON                   SHP         11            3.0        3.9           0     
NL9H       MUSTANG                   SHP         54            1.6        2.7           0     
WADZ       COASTAL RELIANCE          SHP         64            0.6        2.4           0     
WAHG       MIDNIGHT SUN              SHP        297            0.3        2.4           0     
WBM5091    PT. OLIKTOK               SHP        173            2.9        3.0           0     
WBN5978    GUARDSMAN                 SHP         27            4.1        2.6           0     
WCN3586    SAMSON MARINER            SHP          3            0.4        1.2           0     
WCQ8110    SINUK                     SHP         62            0.9        2.5           0     
WCY2920    KENNICOTT                 SHP         16            3.9        4.2           1     
WDC7518    PACIFIC CHALLENGER        SHP         62            1.6        3.2           0     
WDD2703    GULF RELIANCE             SHP          1            3.7        0.0           0     
WN4201     MATANUSKA                 SHP         57            2.5        2.9           0     
WNGW       TUSTUMENA                 SHP        207           -0.1        3.0           0     
WYH6327    MALOLO                    SHP          4            2.0        1.6           0     
                                                                                              
                                                                                              
                         SEPTEMBER 2007                                                       
                SEA SURFACE TEMP. FOR ALL HOURS                                               
                                                                                              
PLATFORM   SHIP/PLAT. NAME           TYPE   NO. REPORTS    MEAN DIFF    SD DIFF    # GROSS ERR
                                                                                              
ELQB8      ARCTIC SUN                SHP        449            0.0        1.5           0     
NL9H       MUSTANG                   SHP         51           -1.1        1.2           1     
WCN3586    SAMSON MARINER            SHP          1            0.8        0.0           0     
WCQ8110    SINUK                     SHP          1            0.6        0.0           0     
WN4201     MATANUSKA                 SHP         39            1.1        2.6           0     
WNGW       TUSTUMENA                 SHP        111           -0.1        1.3           0     
                                                                                              
TOTAL NUMBER OF GULF OF ALASKA OBSERVATIONS FOR SEPTEMBER 2007                                
(EXCLUDING DUPLICATES) WAS   1491.  TOTAL NUMBER OF IDS WAS  15.