OverviewofRIC Tsukuba (Japan,RAII )

Transcription

1 OverviewofRIC Tsukuba (Japan,RAII ) 7Nov.2016 Hiroshi Yoshimura Scientific Officer Regional Instrument Centre Tsukuba Observing Division, Observing Department

2 Outline 1. WMO Regional Instrument Center (RIC) 2. Activities of RIC Tsukuba 3. For maintaining accuracy of instruments 4. Framework of Traceability

3 1.WMORegional Instrument Centre (RIC)

4 WMO Regional Instrument Centers (RICs) Barbados, United States, Costa Rica Slovakia, Slovenia, France Japan, China RIC Tsukuba Fiji Argentina Algeria, Egypt, Morocco, Kenya, Botswana Philippines, Australia

5 Main functions of RIC To assist Members of its Region in calibrating their national meteorological standards; To advise Members on enquiries regarding instrument performance, maintenance and the availability of relevant guidance materials; (For details, refer to WMO s website about RICs. ment-reg-centres.html)

6 2. Activities of RIC Tsukuba

7 RIC Tsukuba s Website - About RICs - Overview of RIC Tsukuba - ISO/IEC Quality control of observational instruments - Activity - Material etc.

8 JMA/WMO Training Workshop on Calibration and Maintenance of Meteorological Instruments in RA II (ASIA) (19-22 February 2013 Tokyo, Tsukuba, Japan)

9 Calibration or inspection at RIC Tsukuba 2000: Thailand (barometer, thermometer) 2001: Republic of Korea (anemometer) 2006: Philippines (pyranometer) 2007: Thailand (barometer, thermometer) Hong Kong, China (barometer) 2010: Thailand (barometer, thermometer, anemometer) 2012: Oman (barometer, thermometer, hygrometer) Indonesia (barometer, thermometer, hygrometer) 2013: Bangladesh (barometer, thermometer) 2014: Hong Kong, China (anemometer) 2015: Indonesia (pyranometer) Fiji (barometer, thermometer, dew point meter) 2016: Mozambique (barometer, thermometer) Sri Lanka (barometer)

10 FMS members visit and on-the-job training on instrument calibration

11 3. For maintaining accuracy of instruments

12 To maintain the precision of observations The aims of the weather observation are mainly for weather forecast, disaster prevention and academic research. For these purposes, it is important to maintain the precision of observations. 1. Appropriate choice of instruments 2. Maintenance and periodical calibration of instruments 3. Maintenance of observation environment 4. Quality control of observation data

13 Why is calibration necessary? As performance and characteristic of an instrument change gradually over time, regular calibration should be carried out. Maintaining the accuracy of instruments contributes to improvement of the precision of observations and disaster prevention.

14 What should your country do for Maintaining Accuracy? In case of JMA International Standard (SI unit) National Primary Standard (National Metrology Institute of Japan) National meteorological standard (JMA standard) Working standards (JMA sub-standard) MIC Working instruments (Observation sites)

15 Let s check What should your country do for maintaining accuracy of instruments? Does your NMHS have and maintain necessary procedures for calibrating instruments?

16 4. Framework of Traceability

17 Traceability to the SI Definition of the SI unit National Primary Standard (National metrology institute) Reference standards (Calibration laboratories) International comparisons National Primary Standard (National metrology institute) Reference standards (Calibration laboratories) Working standards Working standards Measurements (End users) Measurements (End users) Country A Country B

18 Traceability to the SI Definition of the SI unit Unbroken chain National Primary Standard (National metrology institute) Reference standards (Calibration laboratories) International comparisons National Primary Standard (National metrology institute) Reference standards (Calibration laboratories) Working standards Working standards Measurements (End users) 20 = 20 Measurements (End users) Country A Country B

19 Traceability to the SI Definition of the SI unit National Primary Standard (National metrology institute) National Primary Standard (National metrology institute) Reference standards (Calibration laboratories) Reference standards (Calibration laboratories) Working standards Working standards Measurements (End users) Measurements (End users) Country A Country B

20 Traceability to the SI Definition of the SI unit National Primary Standard (National metrology institute) National Primary Standard (National metrology institute) Reference standards (Calibration laboratories) Working standards Measurements (End users) Traceable to foreign national primary standard or to reference standards at a foreign country Reference standards (Calibration laboratories) Working standards Measurements (End users) Country A Country B

21 Traceability in meteorological instruments Non radiation International Standard (SI unit) National Primary Standard (National metrology institute) Temperature, Humidity, Pressure, Radiation WMO standard RRC(Regional Radiation Centre) standard National meteorological standard National meteorological standard NMHS Working standards NMHS Working standards Working instruments (Observation sites) Working instruments (Observation sites)

22 Traceability in meteorological instruments Non radiation International Standard (SI unit) Temperature, Humidity, Pressure, National Primary Standard (National metrology institute) National meteorological standard NMHS Working standards Working instruments (Observation sites)

23 Traceability in meteorological instruments Non radiation International Standard (SI unit) National Primary Standard (National metrology institute) Temperature, Humidity, Pressure, National Primary Standard RIC of a foreign country RIC Laboratory Manufacture of instruments National meteorological standard NMHS Working standards Working instruments (Observation sites) Calibration certificates are better to be published by accredited laboratories in regard to ISO/IEC17025 (General requirements for the competence of testing and calibration laboratories).

24 Thank You! Mascot of JMA Harerun

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27 (Ref.) Traceability around JMA

28 Measurement standards traceable to national standards National Metrology Institute of Japan Traceability of Temperature (JMA) JMA Standard Working Standard Field Instruments Meteorological Instruments Center (JMA) Observatory (JMA) Temperature fixed points Indium point ( ) Mercury point ( ) Water triple point (0.01 ) Standard resistor (100Ω) Calibration: every year NSR-160 every 2 years Water triple-point cell Standard resistor Platinum resistance thermometer NSR-160 (Netsushin, Japan) Alternating current bridge F-600 (ASL, UK) Water triple-point cell (0.01 ) Standard resistor(100ω) Check:every 6 months Using water triple-point cell Platinum resistance thermometer TS-81A (Chino, Japan) Alternating current bridge F-250 (ASL, UK) Calibration :every year Platinum resistance thermometer TS-81A (Chino, Japan) Platinum resistance thermometer Calibration :at the time of installation Calibration:every 5 years Mercury-in-glass thermometer (psychrometer) Check: every 3 months (manned observatory) every year (automatic weather station) Tolerable range: ±0.4 Alternating current bridge F-250 (ASL, UK)

29 Traceability of Humidity (JMA) National Primary Standard JMA Standard Working Standard Field Instruments National Metrology Institute of Japan Meteorological Instruments Center (JMA) Observatory (JMA) Standard humidity generator set Chilled-mirror dewpoint hygrometer Hygrometer (display) DewStar S-1M-0 (Shinyei technology, Japan) Chilled-mirror dewpoint hygrometer Hygrometer (controller) Hygro M2 (General Eastern, USA) Electronic hygrometer Calibration :every year Hygrometer (sensor) DewStar S-2S-0K (Shinyei technology, Japan) Hygrometer (sensor) D2 (General Eastern, USA) Calibration :every year Filter change: Every 6 months Check: every 3 months (manned observatory) every year (automatic weather station) Tolerable range: ±4% Aspirated psychrometer Lithium chloride dew-point hygrometer Check: at the time of installation JMA Standard of thermometer Mercury-in-glass thermometer Japan Meteorological (psychrometer) Agency

30 Traceability of Pressure (JMA) National Primary Standard National Metrology Institute of Japan JMA Standard Working Standard Working Standard Field Instruments (Traveling Standard ) Meteorological Instruments Center (JMA) Observatory (JMA) Mercury U-tube barometer using interferometer Air piston gauge Air piston gauge AV-02 (Futaba Sokki, Japan) Weights (Futaba Sokki, Japan) Digital barometer resonator barometer PTB220(Vaisala, Finland) RPM4(DHI, USA) F-452 (Yokogawa, Japan) Digital barometer PTB330, PTB220 (Vaisala, Finland) Digital barometer PTB330, PTB220 (Vaisala, Finland) Calibration :every 3 years Calibration :every year Calibration :every year Calibration :every year (surface observatory) :every 2 years (aviation observatory )

31 Traceability of Precipitation (JMA) National Primary Standard Working Standard Working Standard Field Instruments National Metrology Institute of Japan Calibration Center of Local Government Meteorological Instruments Center (JMA) Observatory (JMA) Prototype of the kilogram Standard weight Burette 1571ml Burette (Yoshino-keisoku, Japan) Rain gauge(tipping bucket type) Check:every 10 years Check:every 5 years

32 Traceability of Solar Radiation (JMA) National Primary Standard JMA Standard Working Standard Field Instruments Atmospheric Environment Division (JMA) Meteorological Instruments Center (JMA) Observatory (JMA) Absolute radiometer (WMO RAII Standard) (National Primary Standard) Pyranometer Pyranometer Comparison (To check the accuracy routinely out of doors) PMO-6 A-HF CMP-22 (Kipp & Zonen, Netherlands) Pyranometer MS-801 (EKO, Japan) CM-21 (Kipp &Zonen, Netherlands) Calibration :every year Calibration :every year Calibration:every 5 years

33 Traceability of Sunshine Duration (JMA) National Primary Standard JMA Standard Working Standard Field Instruments Atmospheric Environment Division (JMA) Meteorological Instruments Center (JMA) Observatory (JMA) Absolute radiometer (WMO RAII Standard) (National Primary Standard) Pyrheliometer Sunshine recorder Rotating mirror sunshine recorder MS-093A, MS-094 (EKO, Japan) Sunshine recorder Rotating mirror sunshine recorder MS-093A, MS-094 (EKO, Japan) CH-1 (Kipp &Zonen, Netherlands) PMO-6 A-HF Calibration :every 3 years Calibration :every 3 years Calibration:every 5 years

34 Traceability of Wind Speed (JMA) National Primary Standard JMA Standard Working Standard Field Instruments National Metrology Institute of Japan Headquarters(JMA) Observatory(JMA) Laser Doppler velocimeter calibrated by turning table, Calibration wind tunnel, Tow carriage Calibration :every 2 years 0~20m/s Ultrasonic anemometer DA-700 (Sonic, Japan) 20~90m/s Pitot tube F-202(Rika seiki, Japan), Differential pressure gauge MT210(2sets) (YOKOGAWA, Japan) Check:every month 0~30m/s Ultrasonic currentmeter DA-470 (Sonic,Japan) 30~90m/s Differential pressure gauge DPI145 (GEsensingjapan,Japan) Propeller anemometer Calibration :at the time of installation Relational table between wind speed and rotation frequency of the propeller anemometer Check :every 5 years Meteorological Instruments Center (JMA) Ultrasonicanemometer DA-700(Sonic,Japan) Ultrasoniccurrentmeter DA-470(Sonic,Japan) Inspectionequipment ofpropell er anemometer Check :every year Digitaltachometer PitottubeF-202(Rikaseiki,Japan), Differentialpressuregauge MT110,MT210 (YOKOGAWA,Japan) Differentialpressuregauge DPI145(GEsensingjapan,Japan) Traceable to National standard(time) Calibration:every 2 years

35 Thank You! Mascot of JMA Harerun