PTB for Climate Sciences: Combined efforts supporting the European Metrology Network for Climate and Ocean Observation

Author(s):  
Olav Werhahn ◽  
Christian Monte ◽  
Steffen Seitz

<p><span>The German national metrology institute Physikalisch-Technische Bundesanstalt (PTB) is organized in typical different sections and divisions, each of them bringing in their own portfolio on specific calibration and measurement capabilities. Customer are being served on various fields of work and metrological SI-traceability strategies are developed for all the units of measurements. However, despite many third-party projects driven by individual PTB groups [1], as for example within the European Metrology Programme for Innovation and Research (EMPIR, [2]) and its different Environmental calls, PTB has never been seen itself as a climate research institute. With the foundation of the European Metrology Network for Climate and Ocean Observation (EMN) [3], PTB has now brought its various expertise on metrology for climate research to a new level of combination.</span></p><p><span>The presentation highlights the input from three different working groups of PTB to the EMN related to its sections “Atmosphere”, “Ocean”, and “Land” as being addressed by the groups for Spectrometric Gas Analysis [4], Electrochemistry [5], and Infrared Radiation Thermometry [6], respectively. With those expertise PTB seeks to support the idea of the EMN bringing in measurement techniques like in situ laser spectroscopy-based species quantification, FTIR-based analysis of atmospheric gases and related spectral line parameters of key greenhouse gases and offering its consulting services to the EMN in the “Atmosphere” section. On the “Ocean” section of the EMN PTB offers its expertise based on ph-measurements, salinity definitions and respective calibration and measurement capabilities, whereas the “Land” section of the EMN is benefitting from PTB’s application-specific traceability concepts for infrared radiation thermometry and infrared radiometry and for quantitative thermography and for emissivity measurements in the field of satellite-, aircraft- and ground-based optical remote sensing of the atmosphere and Earth (-90 °C to 100 °C).</span></p><p><span>Examples for all three working groups will be presented and discussed in view of there benefit to the EMN. Collaboration with European partners will be shown.</span></p><p><span>Acknowledgements:</span></p><p><span>Parts of the work </span>has received funding from the EMPIR programme co-financed by the Participating States and from the European Union's Horizon 2020 research and innovation programme. PTB acknowledges the collaboration with all partners in the EMN for Climate and Ocean Observation.</p><p> </p><p><span>References:</span></p><p><span>[1] EMPIR 16ENV05 MetNO2 (http://empir.npl.co.uk/metno2/), EMPIR 16ENV06 SIRS (https://www.vtt.fi/sites/SIRS/), EMPIR 16ENV08 (http://empir.npl.co.uk/impress/</span><span>)</span></p><p><span>[2] European Metrology Programme for Innovation and Research, https://www.euramet.org/research-innovation/research-empir/?L=0</span></p><p><span>[3] European Metrology Network for Climate and Ocean Observation, https://www.euramet.org/european-metrology-networks/climate-and-ocean-observation/?L=0</span></p><p><span>[4] PTB working group Spectrometric Gas Analysis, https://www.ptb.de/cms/en/ptb/fachabteilungen/abt3/fb-34/ag-342.html</span></p><p><span>[5] PTB working group Electrochemistry, https://www.ptb.de/cms/en/ptb/fachabteilungen/abt3/fb-31/ag-313.html</span></p><p><span>[6] PTB working group Infrared Radiation Thermometry https://www.ptb.de/cms/en/ptb/fachabteilungen/abt7/fb-73/ag-732.html</span></p><p> </p>

2017 ◽  
Vol 11 (5) ◽  
pp. 691-698
Author(s):  
Ichiko Misumi ◽  
Jun-ichiro Kitta ◽  
Ryosuke Kizu ◽  
Akiko Hirai ◽  
◽  
...  

One-dimensional grating is one of the most important standards that are used to calibrate magnification of critical-dimension scanning electron microscopes (CD-SEMs) in the semiconductor industry. Long-term stability of pitch calibration systems is required for the competence of testing and calibration laboratories determined in ISO/IEC 17025:2005. In this study, calibration and measurement capabilities of two types of pitch calibration systems owned by a calibration laboratory are re-evaluated through comparison to a reference value and its expanded uncertainty given by a metrological atomic force microscope (metrological AFM) at National Metrology Institute of Japan (NMIJ), AIST. The calibration laboratory’s pitch calibration systems are designed by using the diffraction method (optical and X-ray).


ACTA IMEKO ◽  
2017 ◽  
Vol 6 (2) ◽  
pp. 21
Author(s):  
Koji Ogushi ◽  
Atsuhiro Nishino ◽  
Kazunaga Ueda ◽  
Min-Seok Kim ◽  
Yon-Kyu Park

<p class="Abstract">An inter-laboratory comparison of the calibration capability for torque measuring devices (TMDs) was conducted between the National Metrology Institute of Japan (NMIJ) in the National Institute of Advanced Industrial Science and Technology (AIST) and the Korea Research Institute of Standards and Science (KRISS). Three high-performance torque transducers having rated capacities of 100 N·m, 1 kN·m, and 2 kN·m, and a bridge calibration unit (BN100A) were used as the transfer devices. The 1 kN·m and 2 kN·m transducers had one bridge, but the 100 N·m transducer had two bridges that acquired data more reliably. An identical indicator/amplifier type (DMP40) owned by each laboratory was used. All of the transducers and BN100A were transferred from NMIJ to KRISS. For the comparison, NMIJ used 1 kN·m and 20 kN·m deadweight torque standard machines (TSMs), and KRISS used a 2 kN·m deadweight TSM. In particular, the capability of the 1 kN·m TSM at NMIJ was examined after some improvements. In the calibration range from 50 N·m to 2 kN·m, relative deviations were less than 3.0 × 10<sup>-5</sup> for increasing torques. Sufficiently small deviations were obtained between the calibration results in the two laboratories, as compared with their calibration and measurement capabilities (CMCs), which were 3.5 × 10<sup>-5</sup> for the 1 kN·m TSM at NMIJ, 7.0 × 10<sup>-5</sup> for the 20 kN·m TSM at NMIJ, and 5.0 × 10<sup>-5</sup> for the 2 kN·m TSM at KRISS (as relative expanded uncertainties).</p><p class="Abstract"> </p>


2016 ◽  
Vol 55 (9) ◽  
pp. 2169 ◽  
Author(s):  
You Lü ◽  
Xin He ◽  
Zhong-Hui Wei ◽  
Zhi-Yuan Sun ◽  
Song-Tao Chang

2012 ◽  
Vol 04 (03) ◽  
pp. 91-96
Author(s):  
John WONG

NEAT is a loosely constituted regional scheme under the ASEAN plus Three (APT) framework. Its main objectives are to promote exchange among APT scholars and research institutes in the region, and to promote relevant research that can facilitate the APT regional cooperation process. Research is done through organising Working Groups. NEAT has made important progress in the past 10 years. To grow and expand in future, it will have to improve on its networking function and strengthen its Working Group mechanism.


1970 ◽  
Vol 14 (1) ◽  
pp. 319-329
Author(s):  
M. W. Feast ◽  
Y. Fujita ◽  
M. K. V. Bappu ◽  
G. Herbig ◽  
L. Houziaux ◽  
...  

Material for this report was collected by the President, Vice-President and Members of the Organizing Committee. The President is, however, responsible for the form in which the report now appears. A number of special abbreviations in the references are explained in the report of Committee 27a. In addition, 3rd Harvard = 3rd Harvard-Smithsonian Conference on Stellar Atmospheres (1968). The field of Commission 29 overlaps particularly with those of 9, 27a, 36, 44 and 45 whose reports should be consulted. Since the last IAU meeting 29 has co-sponsored the following meetings: IAU Colloquium No. 4 on Stellar Rotation (Columbus, Ohio, September 1969); IAU Symposium No. 36, Ultraviolet Stellar Spectra and Related Ground-Based Observations (Lunteren, June, 1969); Second Trieste Colloquium, Mass Loss from Stars (September, 1968). We are also co-sponsoring IAU Symposium No. 42 on White Dwarfs to be held in Scotland (August, 1970). The thanks of the commission are due to their representatives on the organizing committees of these meetings. Reports from some working groups are appended. The working group with Commission 44 has not felt it necessary to submit a report (its main activity was the organization of Symposium No. 36). Miss Underhill (Chairman) recommends that the working group on Tracings of High Dispersion Stellar Spectra be dissolved.


Author(s):  
M. Bruggeman ◽  
P. Van Iseghem ◽  
R. Odoj ◽  
Ch. Lierse von Gostomski ◽  
R. Dierckx

Abstract ENTRAP is a European organisation grouping nuclear waste quality checking laboratories from different EU member states. The main objectives of ENTRAP are information exchange and harmonisation between the laboratories. ENTRAP works on different aspects of quality checking of nuclear waste packages. The working items are treated in different working groups and one of these working groups is WGA, dealing with non-destructive assay techniques for waste packages. This paper discusses the main achievements made by WGA, and gives a summary of the state-of-the-practice of assay techniques used for quality checking of nuclear waste packages in the different member laboratories.


2005 ◽  
Vol 1 (T26A) ◽  
pp. 243-243
Author(s):  
Werner W. Weiss

A meeting of the IAU Working Group on Chemically Peculiar and Related Stars was held in Sydney on July 16th, 2003. The focus of the business session was on possible effects on our WG due to plans for restructuring the IAU. Working Groups are to be evaluated every 3 years and in general, will be limited to a period of 3 or 6 years.


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