Discussion Forum on Metrology for Satellite Observations (CCPR-WG-SP-TG17)
Co-Chairs
National Physical Laboratory
United Kingdom
National Institute of Standards and Technology
United States of America
Terms of reference
- To provide a consistent and coordinated response from the NMI radiometry community to the needs of the satellite-observation communities, particularly those related to climate change.
Objectives
- Review the relevant documented requirements from the community relating to satellite observations, including:
- The BIPM-WMO Metrology for Climate Action (2022) report (aka “Report”), recommendations 1A.1, 1B.2, 1B.8 – 1B.11, 1C.1 – 1C.7, 1D.1, 1D.4, 1D.6, 1D.9, 1E.1, 2D.1
- The CEOS-GSICS SI-Traceable Space-Based Climate Observation System (2019) report
(doi: 10.47120/npl.9319) - The 2005 report “Satellite instrument calibration for measuring global climate change: Report of a workshop”, published in BAMS. (doi: 10.1175/BAMS-86-9-1303)
- Document the current capabilities of NMIs and research institutes and their potential for
near-term observation improvement capabilities. - Produce a roadmap for the development/implementation of radiometric capability to provide calibration services for optical (UV, visible, SWIR, thermal IR) satellite sensors (pre- and post-launch)
- Establish whether more specific reference standards and/or comparisons are needed to support the confidence in delivered SI-traceability to satellite sensor calibrations,
- Define and structure research projects to develop such references / comparisons (
satellite-relevant CMC claims, e.g., for radiance/radiance responsivity).
- Recommend specific areas where funding could enable meeting the Report and roadmap objectives. Consider what is best done collaboratively, independently or by a single NMI, and review options for funding in national and international programmes.
- Provide a formal two-way liaison with the relevant satellite-observation international committees, e.g., CEOS WGCV, GSICS.
- Provide formal recommendations for NMI management and funding agencies.
- Coordinate with relevant CCs (e.g., CCEM, CCT, CCQM, CCTF) on non-radiometric satellite sensor requirements.
Working Groups