2. INTERCOMPARISON BETWEEN RA VI ( France, ) AND RA II (Australia) REGIONAL INSTRUMENT CENTRES ENVIRONMENTAL AGENGY OF THE REPUBLIC OF SLOVENIA Slovakia, Slovenia

3. 4 W METHOD W W W W HY HO ITH HAT

4. WHY METROLOGY LABORATORIES MANUFACTURERS / PUBLIC NATIONAL LABORATORY BIPM METROLOGY PYRAMID

5. WHY NMHS AWS / STATION RIC WMO METEOROLOGY PYRAMID

6. WHY DISSEMINATIONTRACEABILITY INTERCOMPARISON

7. WHY WMO N°8 Guide to Meteorological Instruments And Methods of observation: « Intercomparisons of instruments and observing systems, together with agreed quality control procedures, are essential for the establishment of compatible data sets. » Term Of Reference for RIC  Capability  “(f) A RIC must participate in, or organize inter-laboratory comparisons of standard calibration instruments and methods, »

8. WHO jerome.duvernoy@meteo.fr drago.groselj@gov.si j.gorman@bom.gov.au jan.danc@shmu.sk ENVIRONMENTAL AGENGY OF THE REPUBLIC OF SLOVENIA

9. WHO Slovak Hydrometeorological Institute Jeséniova 17 833 15 Bratislava Slovakia www.shmu.sk jan.danc@shmu.sk

10. WHO Range: -30°C to +50°C, Method of immediate comparison, Reference standard: SPRT Rosemount, model 162CE, Resistance bridge: Hart Scientific, model 1560, 2560 and 2562 for PRT calibrations, Standard resistors: 25, 100  Tinsley 5685A, Liquid bath Julabo FP40-HP, Best Measure Capability 0.05°C. TEMPERATURE

11. WHO Traceability to National Standard, Range: 10% RH to 95% RH, Method of immediate comparison, Monitoring of the calibration process, Best measure capability 2.5% RH HYGROMETRY

12. WHO  Traceability to National Standard,  Range: 600 hPa to 1100 hPa,  Method of immediate comparison,  Best Measure Capability is 0.11 hPa PRESSURE DH Instruments PPC2+

13. WHO ENVIRONMENTAL AGENGY OF THE REPUBLIC OF SLOVENIA Environmental Agency of the Republic of Slovenia Vojkova 1b 1000 Ljubljana Slovenia www.arso.gov.si Drago.Groselj@gov.si

14. WHO ENVIRONMENTAL AGENGY OF THE REPUBLIC OF SLOVENIA HYGROMETRY

15. WHO ENVIRONMENTAL AGENGY OF THE REPUBLIC OF SLOVENIA TEMPERATURE

16. WHO ENVIRONMENTAL AGENGY OF THE REPUBLIC OF SLOVENIA PRESSURE

17. WHO QuantitiesRangeBMC (k=2) Temperature Water triple point0.01 °C1 mK Gallium melting point29.7646 °C1.5 mK Resistance thermometers-40 °C ÷ 50 °C15 mK Liguid-in-glass thermometers -20 °C ÷ 50 °C70 mK Thermographs-20 °C ÷ 0 °C 0 °C ÷ 50 °C 0.3 °C 0.2 °C Relative humidity10 % ÷ 95 %3 % Air pressure600 hPa ÷ 1200 hPa5.4·10-5·p + 5 Pa Air quality quantities CO concentration0 -15 ppmv0.07 ppm + 0.016 · c CO SO2 concentration0 - 500 ppbv0.8 ppb + 0.021· c SO2 NO concentration0 - 500 ppbv0.9 ppb + 0.031· c NO NO2 concentration0 - 500 ppbv1.5 ppb + 0.02 · c NO2 O3 concentration0 - 500 ppbv2.6 ppb + 0.024 · c O3 ENVIRONMENTAL AGENGY OF THE REPUBLIC OF SLOVENIA

18. WHO Bureau of Meteorology GPO Box 1289 Melbourne VIC 3001 Australia Phone +03 9669 4000 Fax +03 9669 4699 j.gorman@bom.gov.au

19. WHO PRESSURE

20. WHO

22. DomainType of standardTypeManufacturerRangeU (k=2) 95% TemperatureITS-90 fixed pointsHg, H 2 O, Ga, InIsotech-38 – 156 o C20 mK PressureDead Weight TesterGas piston gaugeRuska500 – 1100 hPa2 Pa HumidityDew Point HygrometerChilled mirrorEastern GeneralDP -70 -+400.15 o C DP

23. WHO Météo-France DSO/LM 7 Rue Teisserenc de Bort 78195 TRAPPES France Phone +33130136350 Fax +33130136020

24. WHO HUMIDITY  11 % : LiCl  33 % : MgCl  54 % : N 2 O 6 Mg  75 % : NaCl  95 % : K 2 SO 4  Uncertainty: 2.4 %

25. WHO  2 temperature bench Humidity generation with a circulating bench called “2 temperature bench”  From -50°C to +50°C  From 0% to 99%  Uncertainty 1.6 %.U

26. WHO PRESSURE  range 500 to 1060 hPa  Uncertainty: 8.8 + 5.4.10 -5 P Pa.

27. WHO TEMPERATURE  -50 à +50°C  ASL resistor bridge  Uncertainty 0.03 °C

28. WITH Set of instruments developed by Australian Bureau

29. WITH THERMOMETER Instrulab 4312A-15-07 (PT100)

30. WITH HYGROMETER Vaisala HM-70 humidity sensor

31. WITH BAROMETER PTB 220A 3 cells

32. WITH NORMALISED BIAS B 1 and B 2 are respectively the bias (True value – Instrument value) U 1 and U 2 are the associated expanded uncertainties.

33. WHAT PRESSURE PRESSURE (hPa) BIAS (hPa)

34. WHAT HUMIDITY U (%) BIAS (%)

35. WHAT TEMPERATURE  (°C) BIAS (°C)

36. CONCLUSION RIC’s UNCERTAINTIES PRESSURETEMPERATUREHUMIDITY AUSTRALIA0.060.021 SLOVENIA0.050.022.4 SLOVAKIA0.120.052.6 FRANCE0.160.032.5

37. CONCLUSION INSTRUMENTS STABLE SUITABLE

38. CONCLUSION PROCEDURES AND METHODS ARE SUITABLE FOR INTERCOMPARISONS

39. CONCLUSION ORGANISED BY RIC INTERCOMPARISONS PROMOTED BY WMO

40. THANKS jan.danc@shmu.sk

41. THANKS ENVIRONMENTAL AGENGY OF THE REPUBLIC OF SLOVENIA

42. THANKS

43. THE END ?

44. TO BE CONTINUED… THANKS FOR YOUR ATTENTION