VOS-Clim ship suspect list for September 2008
   *************************************************
	   
 Monitoring centre:  Met Office, UK.

 All VOS-Clim ship data is monitored: against background 6-hour forecast fields
 for all variables except SST, for which analysed fields from the previous day 
 are used.

 Key to table below
 ------------------
 NumObs : number of observations from the ship during the month
 %GE    : percentage of obs with gross errors (for GE limits see below)
 StdDvn : standard deviation of obs-background, excluding obs with gross errors
 Bias   : mean obs-background, excluding obs with gross errors
 RMS    : root mean square of obs-background, excluding obs with gross errors

 Suspect selection criteria for each variable:
    At least 20 observations from the ship and one or more of the following:-
    %GE      >  10%
    |Bias|   >  Bias limit (see below)
    StdDvn   >  StdDvn limit (see below)
 
 Limits:       | Press.| Wind Speed | Direct.| Air Temp.| Rel.Hum.|  SST   |
 -------       | (hPa) |   (m/s)    | (deg)  | (deg C)  |  (%)    | (deg C)|
 Bias limit    |  2.5  |     5      |   30   |   2.0    |  12     |   2.0  |
 StdDvn limit  |  5.0  |    10      |   60   |   4.0    |  20     |   4.0  | 
 GE limit      | 15.0  |    25      |  150   |  10.0    |  50     |  10.0  |


Callsign   Element   NumObs   %GE   StdDvn   Bias    RMS
------------------------------------------------------------

 C6KD7         P*       50     0     1.1    -2.5     2.7
 C6KD8         P*       21     0     0.6     3.1     3.1
 VOCZ          P*      145     0     0.8     2.7     2.8

 BATEU01      RH       107     0     5.9   -13.1    14.4
 LAIP5        RH        27     0     4.6    12.5    13.3
 VCRG         RH       117     0    10.2    13.6    17.0

 CGDG        SPEED     109    14     5.0     2.8     5.7

 CGDG        DIRN.      46    33    94.1   -40.1   102.3
 DFGX2       DIRN.      27     7    79.7   -28.9    84.8

 9KWH         SST       30     0     1.3     2.4     2.8
 AVOUK00      SST       86     0     1.2     2.4     2.7
 CGBY         SST       49     0     0.8     2.1     2.3
 DPCK         SST       35     0     0.7    -3.4     3.5
 DQVH         SST       32     0     0.8     2.9     3.0

 MZIM8        SST       41     0     0.6     2.0     2.1
 PCQL         SST       21     0     1.0    -2.6     2.8
 S6TS         SST       26     0     2.0    -4.3     4.7
 ZQAY4        SST       35     0     0.9     2.1     2.3