VOS-Clim ship suspect list for May 2007
   *******************************************
	   
 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
------------------------------------------------------------

 AUCT          P        21     0     1.2    12.1    12.2
 LADY5         P        22     0     1.2     3.0     3.2
 VTXG          P        36     0     2.4     3.2     4.0
 ZCBN5         P        34     0     1.7     4.6     4.9

 VTXG         T         37     0     1.3    -2.7     3.0

 ELZU8        RH        24     0     7.1    12.6    14.5
 ZDLP         RH        91     0     9.3    13.6    16.5

 DGHX        SPEED      37     3     4.1     5.5     6.9
 ELXT8       SPEED      34     3     5.2     5.0     7.2

 CFN3031     DIRN.      98     0    21.2   -98.3   100.6
 CGJK        DIRN.      46     0    17.0   -33.4    37.4
 DQVM        DIRN.      20     5    79.5   -32.7    85.9
 FNJI        DIRN.      71    13   107.5     6.0   107.7
 VRYO9       DIRN.      30     0    98.1    19.6   100.0
 ZCBN5       DIRN.      28     4    60.0   -14.2    61.6

 CG2960       SST      108     4     3.7     2.6     4.5
 DGXS         SST       24     0     0.3    -2.5     2.5
 DQVO         SST       28     0     1.0     2.6     2.8
 LAIP5        SST       53     0     0.7    -3.5     3.6
 VOCJ         SST      200     7     2.3     4.6     5.2