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ENVIRONMENTAL AGENGY OF THE REPUBLIC OF SLOVENIA

ENVIRONMENTAL AGENGY OF THE REPUBLIC OF SLOVENIA. Slovakia, Slovenia. INTERCOMPARISON BETWEEN RA VI ( France, ) AND RA II (Australia) REGIONAL INSTRUMENT CENTRES. 4 W METHOD. W. HY. W. HO. W. ITH. W. HAT. WHY. METROLOGY PYRAMID. BIPM. NATIONAL

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ENVIRONMENTAL AGENGY OF THE REPUBLIC OF SLOVENIA

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

  2. 4 WMETHOD W HY W HO W ITH W HAT

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

  4. WHY METEOROLOGY PYRAMID WMO RIC NMHS AWS / STATION

  5. WHY DISSEMINATION TRACEABILITY INTERCOMPARISON

  6. 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, »

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

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

  9. WHO TEMPERATURE • 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.

  10. WHO HYGROMETRY • 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

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

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

  13. ENVIRONMENTAL AGENGY OF THE REPUBLIC OF SLOVENIA WHO HYGROMETRY

  14. ENVIRONMENTAL AGENGY OF THE REPUBLIC OF SLOVENIA WHO TEMPERATURE

  15. ENVIRONMENTAL AGENGY OF THE REPUBLIC OF SLOVENIA WHO PRESSURE

  16. ENVIRONMENTAL AGENGY OF THE REPUBLIC OF SLOVENIA WHO

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

  18. WHO PRESSURE

  19. WHO

  20. WHO

  21. Domain Type of standard Type Manufacturer Range U (k=2) 95% Temperature ITS-90 fixed points Hg, H2O, Ga, In Isotech -38 – 156oC 20 mK Pressure Dead Weight Tester Gas piston gauge Ruska 500 – 1100 hPa 2 Pa Humidity Dew Point Hygrometer Chilled mirror Eastern General DP -70 -+40 0.15oC DP WHO

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

  23. WHO HUMIDITY • 11 % : LiCl • 33 % : MgCl • 54 % : N2O6Mg • 75 % : NaCl • 95 % : K2SO4 • Uncertainty: 2.4 %

  24. 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

  25. WHO PRESSURE • range500 to 1060 hPa • Uncertainty: 8.8 + 5.4.10-5 P Pa.

  26. WHO TEMPERATURE • -50 à +50°C • ASL resistor bridge • Uncertainty 0.03 °C

  27. WITH Set of instruments developed by Australian Bureau

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

  29. WITH HYGROMETER Vaisala HM-70 humidity sensor

  30. WITH BAROMETER PTB 220A 3 cells

  31. WITH NORMALISED BIAS B1 and B2 are respectively the bias (True value – Instrument value) U1 and U2 are the associated expanded uncertainties.

  32. WHAT BIAS (hPa) PRESSURE (hPa) PRESSURE

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

  34. WHAT BIAS (°C)  (°C) TEMPERATURE

  35. PRESSURE TEMPERATURE HUMIDITY AUSTRALIA 0.06 0.02 1 SLOVENIA 0.05 0.02 2.4 SLOVAKIA 0.12 0.05 2.6 FRANCE 0.16 0.03 2.5 CONCLUSION RIC’s UNCERTAINTIES

  36. CONCLUSION INSTRUMENTS STABLE SUITABLE

  37. CONCLUSION PROCEDURES AND METHODS ARE SUITABLE FOR INTERCOMPARISONS

  38. CONCLUSION INTERCOMPARISONS ORGANISED BY RIC PROMOTED BY WMO

  39. THANKS jan.danc@shmu.sk

  40. ENVIRONMENTAL AGENGY OF THE REPUBLIC OF SLOVENIA THANKS

  41. THANKS

  42. THE END ?

  43. TO BE CONTINUED… THANKS FOR YOUR ATTENTION

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