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|International Science Council (ISC)|
|Website||CODATA official website|
CODATA exists to promote global collaboration to advance open science and to improve the availability and usability of data for all areas of research. CODATA supports the principle that data produced by research and susceptible to be used for research should be as open as possible and as closed as necessary. CODATA works also to advance the interoperability and the usability of such data: research data should be FAIR (Findable, Accessible, Interoperable and Reusable). By promoting the policy, technological and cultural changes that are essential to promote open science, CODATA helps advance ISC's vision and mission of advancing science as a global public good.
The CODATA Strategic Plan 2015 and Prospectus of Strategy and Achievement 2016 identify three priority areas:
CODATA achieves these objectives through a number of standing committees and strategic executive led initiatives, and through its task groups and working groups.
In October 2020 CODATA is co-organising an International FAIR Symposium together with the GO FAIR initiative to provide a forum for advancing international and cross-domain convergence around FAIR. The event will bring together a global data community with an interest in combining data across domains for a host of research issues - including major global challenges, such as those relating to the Sustainable Development Goals. Outcomes will directly link to the CODATA Decadal Programme Data for the Planet: making data work for cross-domain grand challenges and to the developments of GO FAIR community towards the Internet of FAIR data and services.
One of the CODATA strategic Initiatives and Task Groups concentrates on Fundamental Physical Constants. Established in 1969, its purpose is to periodically provide the international scientific and technological communities with an internationally accepted set of values of the fundamental physical constants and closely related conversion factors for use worldwide.
The first such CODATA set was published in 1973. Later versions are named based on the year of the data incorporated; the 1986 CODATA (published April 1987) used data up to 1 January 1986. All subsequent releases use data up to the end of the stated year, and are necessarily published a year or two later: 1998 (April 2000), 2002 (January 2005), 2006 (June 2008) and the sixth in 2010 (November 2012). The latest version is Version 7.0 called "2014 CODATA" published on 25 June 2015.
The CODATA recommended values of fundamental physical constants are published at the NIST Reference on Constants, Units, and Uncertainty.
Since 1998, the task group has produced a new version every four years, incorporating results published up to the end of the specified year.
In order to support the redefinition of the SI base units, adopted at the 26th General Conference on Weights and Measures on 16 November 2018, CODATA made a special release that was published in October 2017. It incorporates all data up to 1 July 2017,:4,67 and determines the final numerical values of h, e, k, and NA that are to be used for the new SI definitions.
The last regular version, with a closing date of 31 December 2018, was used to produce the new 2018 CODATA values that were made available by the time the revised SI came into force on 20 May 2019. This was necessary because the redefinitions have a significant (mostly beneficial) effect on the uncertainties and correlation coefficients reported by CODATA.
This is a truly major development, because these uncertainties are now sufficiently small that the adoption of the new SI by the 26th CGPM is expected.
[BIPM director Martin] Milton responded to a question about what would happen if ... the CIPM or the CGPM voted not to move forward with the redefinition of the SI. He responded that he felt that by that time the decision to move forward should be seen as a foregone conclusion.