About Us
Overview
Getting here
Committees

Products
Forecasts
Order Data
Order Software

Services
Computing
Archive
PrepIFS

Research
Modelling
Reanalysis
Seasonal

Publications
Newsletters
Manuals
Library

News&Events
Calendar
Employment
Open Tenders

Home > Products > Forecasts > Monitoring > ECMWF Global Data Monitoring Report February 2010 > Global monitoring statistics > Data Quality >

Table 6 - Suspect drifters: Wind direction (degrees)

Browse

Figure 1 - Availability - SYNOP PRESSURE

Figure 2 - Availability - DRIFTER PRESSURE

Figure 3 - Availability - TEMP 500 hPa geopotential

Figure 4 - Availability - TEMP/PILOT 300 hPa wind

Figure 5 - Availability - AIRCRAFT winds 300-150 hPa

Figure 6 - Availability - SATOB winds 400-150 hPa

Figure 7 - Availability - SATOB winds 1000-700 hPa

Figure 8 - Availability - NOAA15 ATOVS : AMSU-A

Figure 9 - Availability - NOAA16 ATOVS : AMSU-A

Figure 9.1 - Availability - NOAA18 ATOVS : AMSU-A

Figure 9.2 - Availability - AQUA ATOVS : AMSU-A

Figure 9.3 - Availability - METOP ATOVS : AMSU-A

Table 1 - Suspect ships and fixed marine platforms: Surface pressure - (hPa)

Table 2 - Suspect ships and fixed marine platforms: Wind speed (m/s)

Table 3 - Suspect ships and fixed marine platforms: Wind direction (DEGREES)

Table 4 - Suspect drifters: Surface pressure (HPA)

Table 5 - Suspect drifters: Wind speed (m/s)

Table 6 - Suspect drifters: Wind direction (degrees)

Table 7 - Suspect radiosondes: Geopotential height (metres)

Table 8 - Suspect radiosondes: Wind (m/s)

Table 9 - Suspect radiosondes: Wind direction (degrees)

Figure 10 - Suspect TEMP observations - geopotential : 00 UTC

Figure 11 - Suspect TEMP observations - geopotential : 12 UTC

Figure 12 - Suspect TEMP/PILOT observations - wind : 00 UTC

Figure 13 - Suspect TEMP/PILOT observations - wind : 12 UTC

Table 10 - Radiosonde monitoring statistics (SHIPs): Geopotential height (metres)

Table 11 - Radiosonde monitoring statistics (SHIPs): Wind (m/s)

Figure 14 - SATOB Winds: 700-1000hPa

Figure 15 - SATOB Winds: 150- 400hPa

Figure 16 - SATOB Winds: 700-1000hPa

Figure 17 - SATOB Winds: 150- 400hPa

Figure 18 - AIRCRAFT Winds: 150- 300hPa

Table 12 - Airep Monitoring Statistics For Airline Carriers (Global)

          LIST OF SUSPECT STATIONS        : DRIFTER
                    MONITORING CENTRE     : ECMWF
                    ELEMENT MONITORED     : WIND DIRECTION (DEGREES)
                    PERIOD                : FEB 2010
                    STANDARD OF COMPARISON: FIRST-GUESS FIELD



SELECTION CRITERIA: NO. OF OBS.           >= 20 (WIND SPEEDS > 3M/S), AND ,
                    ABSOLUTE BIAS         >= 20 DEGREES, OR,
                    STANDARD DEVIATION    >= 60 DEGREES
                    (GROSS ERROR LIMIT FOR VECTOR WIND = 25 M/S)


TIME = 99 => AVERAGE OF ALL OBSERVATIONS


WMO	OBS			MEAN	MEAN	NUM	NUM	%
IDENT	TIME	ELM	LEVEL	LAT	LONG	OBS	GROSS	GROSS	SD	BIAS	RMS


21210	99	DIRN	SUR	38	146	288	47	98	37.3	-37.0	52.6
31260	99	DIRN	SUR	-28	-48	56	0	29	37.2	-53.1	64.9
51306	99	DIRN	SUR	-2	-170	379	0	4	31.7	27.4	41.9
61010	99	DIRN	SUR	44	9	97	0	45	42.2	-64.8	77.3

04-03-2010