QEvC issues Jitze van der Meulen, 20 Sept. 2005

Feedback mechanism Data generator Data use 1. Data control and validation versus reference 2. Evaluation versus requirements 3. Improvements versus technology 1. automatically?  part of control, automatic pre- validation & control 2. Manually by the operator * 3. R&D project

choice 1 data & warning, rather automatically, the easy way e.g. on-line via desktop 2 data & application, manually, help yourself e.g. by XLS macro

Presentaion of errors & bias  Gross errors & bias like in GDPS  Distribution & standard deviation

By aircraft Aircraft type Median LVR/LVW /°C Median ASC/DES /°C Median all data /°C width (50%) /°C A-300, A A-318, A-319, A-320, A A A-318, A-319, A A-330, A B B B-757, B

Pressure altitude control

Position (lat, lon)

BUFR issues BUFR record length: 326 Edition number (should be 3!) : 2 Section 1 (length 18): Master table number : 0 Originating/generating sub-centre: 0 Originating/generating centre : 74 Update sequence number : 0 Optional section indicator : 0 ==> Optional section present : No Data category : 4 Data sub-category : 255 Version number of master tables : 2 Version number of local tables : 1 Year of century : 5 Month : 6 Day : 15 Hour : 13 Minute : 7 Byte 18 : Subset 1 (with 35 elements): Sequence: SINGLE LEVEL REPORT: ASDAR/AIR Sequence: AIRCRAFT STATION DATA AIRCRAFT FLIGHT NUMBER CCITT_IA5 LH AIRCRAFT NAVIGATIONAL SYSTEM CODE_TABLE Sequence: DATE YEAR YEAR MONTH MONTH DAY DAY 15 End Seq End Sequence Sequence: HOUR/MINUTE HOUR HOUR MINUTE MINUTE 7 End Seq End Sequence Sequence: LATITUDE/LONGITUDE LATITUDE (HIGH ACCURACY) 10**-5 DEGREE LONGITUDE (HIGH ACCURACY) 10**-5 DEGREE End Seq End Sequence PHASE OF AIRCRAFT FLIGHT CODE_TABLE 3 End Seq End Sequence HEIGHT OR ALTITUDE (VERT.LOCATION) 10** 1 M TEMPERATURE/DRY BULB TEMPERATURE 10**-1 K WIND DIRECTION DEGREE_TRUE WIND SPEED 10**-1 M/S DEGREE OF TURBULENCE CODE_TABLE HEIGHT OF BASE OF TURBULENCE 10** 1 M HEIGHT OF TOP OF TURBULENCE 10** 1 M AIRFRAME ICING CODE_TABLE End Seq End Sequence HEIGHT M MAXIMUM DERIVED EQUIVALENT VERTICAL GUST 10**-1 M/S PEAK TURBUL.INTENSITY (EDDY DISS.RATE) 10**-2 M**(2/3)/S AIRCRAFT REGISTRATION NUMBER CCITT_IA5 EU PRECISION OF TEMPERATURE OBSERVATION 10**-2 K TYPE OF AIRCRAFT DATA RELAY SYSTEM CODE_TABLE AIRCRAFT ROLL ANGLE QUALITY CODE_TABLE 0

FM42 issues (not E-AMDAR) [ ] UDAF01 OEJD AMDAR 1906 ASC SVHZAPJ 1747N 04510E 0646 F163 MS /012 TB/ S011= ASC SVHZAPJ 1747N 04513E 0646 F175 MS /015 TB/ S011= ASC SVHZAPJ 1748N 04516E 0647 F186 MS /015 TB/ S011= ASC SVHZAPJ 1749N 04520E 0648 F197 MS /006 TB/ S011= /// SVHZAPJ 1755N 04555E 0653 F230 MS /016 TB/ S111= DES SVHZAPJ 1741N 04641E 0700 F135 PS /024 TB/ S011= /// SVHZAPJ 1729N 04703E 0707 F047 PS /014 TB/ S111= DES SVHZAPJ 1730N 04710E 0709 F026 PS /017 TB/ S011= ))) SVHZA)) ))))) )))))) )))) F))) ))))) )))/))) TB) ))))= ))) SVHZA)) ))))) )))))) )))) F))) ))))) )))/))) TB) )))) 333 F))) VG)))= UDAS01 RJTD PAB AMDAR 1810 LVR JP9Z4U N 13859E F310 MS /032 TB/ S F310 VG///= LVR JP9Z4WV4 3337N 13600E F390 MS /014 TB/ S F390 VG///= LVR JP9ZVYYZ 3403N 13044E F/// PS /018 TB/ S F105 VG///= LVR JP9Z4WVU 3448N 13955E F170 MS /005 TB/ S F170 VG///= LVR JP9Z4WVU 3454N 14024E F/// PS /007 TB/ S F107 VG///= LVR JP9ZVY6Z 3441N 13903E F240 MS /023 TB/ S F240 VG///= UDAS02 BABJ AMDAR 1810 LVR B N 11702E F255 ///// /////// TB/ S//1=

Timeliness: definition of parameter % % 50% time

Timeliness: definition of parameter 2004Q3

Timeliness Δ t : synchronisation of UTC 2004Q3 Δt < 0 Δt = 0

 ?