UPPER AIR OBSERVATIONS (202503) - PILOT

WIND DIRECTION
GROSS ERROR LIMIT	SELECTION CRITERIA	MONITORED LEVELS	OBSERVATION TIMES
Defined in appendix	NOBS >= 5 (wind speed >= 3 m/s) AND AVERAGED \|BIAS\| >= 10° with MAX SD < 30 ° and MAX SPREAD < 10°	Standard levels between 500 - 150 hPa	00,06,12 and 18 UTC

WMO REGION 1 :

IDENTIFIER	OBS_TIME	ELEMENT	LEVEL	LAT	LON	NOBS	BIAS	DISPERSION	SD MAX
NONE

WMO REGION 2 :

IDENTIFIER	OBS_TIME	ELEMENT	LEVEL	LAT	LON	NOBS	BIAS	DISPERSION	SD MAX
41675	12	DD	500-150	30.2	71.4	23	-18.5	0.0	33.4
43150	6	DD	500-150	17.7	83.3	8	-14.5	0.0	32.8
48327	0	DD	500-150	18.8	99.0	86	-10.4	3.2	18.3
48327	6	DD	500-150	18.8	99.0	28	-12.2	0.0	21.7
48327	12	DD	500-150	18.8	99.0	89	-12.7	8.1	24.4

WMO REGION 3 :

IDENTIFIER	OBS_TIME	ELEMENT	LEVEL	LAT	LON	NOBS	BIAS	DISPERSION	SD MAX
NONE

WMO REGION 4 :

IDENTIFIER	OBS_TIME	ELEMENT	LEVEL	LAT	LON	NOBS	BIAS	DISPERSION	SD MAX
NONE

WMO REGION 5 :

IDENTIFIER	OBS_TIME	ELEMENT	LEVEL	LAT	LON	NOBS	BIAS	DISPERSION	SD MAX
NONE

WMO REGION 6 :

IDENTIFIER	OBS_TIME	ELEMENT	LEVEL	LAT	LON	NOBS	BIAS	DISPERSION	SD MAX
NONE

ANTARCTIC :

IDENTIFIER	OBS_TIME	ELEMENT	LEVEL	LAT	LON	NOBS	BIAS	DISPERSION	SD MAX
NONE