UPPER AIR OBSERVATIONS (202605) - 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

REGION AFRICA :

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

REGION ASIA :

IDENTIFIER	OBS_TIME	ELEMENT	LEVEL	LAT	LON	NOBS	BIAS	DISPERSION	SD MAX
41977	12	DD	500-150	22.4	91.8	6	10.7	0.0	19.0
42189	12	DD	500-150	28.4	79.4	7	-15.0	0.0	28.3

REGION SOUTH AMERICA :

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

REGION NORTH AMERICA, CENTRAL AMERICA AND CARIBBEAN :

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

REGION SOUTH WEST PACIFIC :

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

REGION EUROPE :

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

REGION ANTARCTIC :

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