VOS-Clim ship suspect list for March 2003
   **********************************************
	   
 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)
 %Flag  : percentage of obs flagged by the quality control
 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 citeria 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   |   3.0    |  30     |   2.0  |
 StdDvn limit  |  5.0  |    10      |   60   |   6.0    |  60     |   4.0  | 
 GE limit      | 15.0  |    25      |  150   |  15.0    |  90     |  10.0  |


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

 CGDS          P       194    11    11     0.9     0.8     1.2
 VTXK          P        28     0    14     1.8     2.6     3.2
 ZQYC5         P        58     0    38     2.7     2.9     4.0

 VTXK        SPEED      25     0   100     4.1     5.0     6.5

 CGDS         SST      174    61   100     2.2     1.4     2.6
 CG2960       SST      229    34   100     1.6     1.3     2.0
 S6TA         SST       47    13    53     3.8    -2.9     4.8
 VCLM         SST       89    44   100     1.8     1.4     2.3
 VOCJ         SST      218     4   100     1.3     5.2     5.4
 VTXT         SST       25     0    24     1.6     2.7     3.1