Mission Integrated Calibration Monitoring Inter Calibration System MICMICS

Mission Integrated Calibration Monitoring Inter. Calibration System (MICMICS) T. Hewison, S. Wagner, A. Burini, O. Perez Navarro, M. Burla, F. Pereda Garcimartin 1 EUM/RSP/VWG/19/1060449, v 1 Draft, 25 February 2019

Meeting Evolving Needs for Calibration Support • INRC Cal team uses diverse tools to: • Generate calibration coefficients • Monitor the calibration • Perform inter-calibration MSG/ SEVIRI • Developed to meet different needs • Primarily for Meteosat imagers • e. g. SSCC, Lunar Calibration System, Meteosat-IASI GSICS Processor Meteosat. IASI GSICS processor Lunar Calibration System SEVIRI Solar Channel Calibration 2 EUM/RSP/VWG/19/1060449, v 1 Draft, 25 February 2019 DCC GSICS processor

Meeting Evolving Needs for Calibration Support • INRC Cal team uses diverse tools to: • Generate calibration coefficients • Monitor the calibration • Perform inter-calibration MSG/ SEVIRI • Developed to meet different needs • Primarily for Meteosat imagers • e. g. SSCC, Lunar Calibration System, Meteosat-IASI GSICS Processor • Planning to integrate these functions • (plus future developments) • into Mission Integrated Calibration Monitoring Inter-Calibration System (MICMICS) 3 EUM/RSP/VWG/19/1060449, v 1 Draft, 25 February 2019 MICMICS Mission Integrated Calibration Monitoring Inter-Calibration System

Meeting Evolving Needs for Calibration Support • INRC Cal team uses diverse tools to: • Generate calibration coefficients • Monitor the calibration • Perform inter-calibration • Developed to meet different needs • Primarily for Meteosat imagers • e. g. SSCC, Lunar Calibration System, Meteosat-IASI GSICS Processor • Planning to integrate these functions • (plus future developments) • into Mission Integrated Calibration Monitoring Inter-Calibration System (MICMICS) • 4 To meet needs for future missions • Commissioning and Cal/Val • More multi-mission L 2 products • Generation of FCDRs • Growing importance of Radiometric Consistency EUM/RSP/VWG/19/1060449, v 1 Draft, 25 February 2019 EPSSG / 3 MI MSG / SEVIRI MFG / MVIRI EPSSG / VII S 3 / SLSTR MICMICS EPSSG / MWI S 3 / OLCI EPSSG / ICI MTG / LI MTG / FCI

Benefits of MICMICS • Initiated development of integrated system • to meet the requirements for monitoring imagers’ calibration • to compare and inter-calibrate these imagers • to rationalise resources and efforts to: • develop and maintain the system • produce fast and consolidated feedback on mission performances • Other advantages of MICMICS include: • exploiting complementary nature of diverse calibration systems, by • facilitating the use of their results to validate each other, • combining them to generate more robust results, covering a broader range of conditions. • Consolidate the tools to analyse their results, and • incorporate alternative calibration coefficients into L 1 datasets via ground segments. • Some components also serve as EUMETSAT’s contribution to GSICS. 5 EUM/RSP/VWG/19/1060449, v 1 Draft, 25 February 2019

Scope of MICMICS What will it do? • Radiometric calibration of imaging instruments with no on-board calibration unit (e. g. SEVIRI warm channels) • Near-real-time monitoring (including analysis of the medium and long-term stability) of the radiometric calibration • Support to re-analysis and FCDR generation Which instruments/bands will it cover? • All channels of EUMETSAT imaging instruments • Selected third party reference instruments (e. g. GSICS reference instruments) Support to scientific enhancements to improve accuracy What it will NOT do • Monitoring of short-term variations of the onboard calibration, e. g. between two repeat cycles • Radiometric noise monitoring • Monitoring of housekeeping parameters (temperatures, voltages, etc. ) • Geometric factors (including stray light) + navigation 6 EUM/RSP/VWG/19/1060449, v 1 Draft, 25 February 2019

Potential Instruments for MICMICS Satellite Sensor Programme Function Deployment phase MSG SEVIRI Prototype (v 1) EPS Sentinel-3 MTG IASI OLCI SLSTR FCI Monitor & inter-calibrate & Calibrate Reference Monitor & inter-calibrate MTG JPSS MFG EPS-SG EPS-SG Sentinel-4 MTG LI VIIRS Cr. IS MVIRI VII 3 MI IASI-NG GOME-2 MWI/ICI UVN IRS Calibrate & inter-calibrate Reference Recalibrate Monitor & inter-calibrate Reference Monitor & Reference Monitor Phase 2 (v 2) Phase 2 - TBD Phase 3 - TBD Phase 3 - TBC Phase 4 - TBD Prototype (v 1) Phase 2 (v 2) Unconfirmed applications are shown in italics and/or TBD. 7 EUM/RSP/VWG/19/1060449, v 1 Draft, 25 February 2019 • Deployment phases: • • Prototype : 2019/20 Phase 2 : 2020/21 Phase 3 : 2021/22 Phase 4 : 2023

Cal Coefficient Injectors L 1 data OPS DBs Reference Instruments’ L 1 data Data Acceptance Modules Inst. Info Ext Data Buffer Calibration Processing Modules Intermed. results Site Data Calibration Output Data Analysis and Reporting MICMICS Boundary 8 Reports Web Alerts EUM/RSP/VWG/19/1060449, v 1 Draft, 25 February 2019 Events GSICS Reprocessing MICMICS

Cal Coefficient Injectors L 1 data MICMICS OPS DBs Reference Instruments’ L 1 data Of interest for GSICS Data Acceptance Modules Inst. Info Ext Data Buffer Calibration Processing Modules Intermed. results GSICS Site Data Calibration Output CPMs: - DCC GEO/LEO + LEO/LEO - GSICS Rayleigh Scat - GIRO + Lunar Inter-Cal - IR GEO/LEO + LEO/LEO Intermed. results: - E. g. collocations DAR: Data Analysis and Reporting MICMICS Boundary 9 - Reports: Reports Web New version of the GSICS plotting tool (including VNIR) Alerts EUM/RSP/VWG/19/1060449, v 1 Draft, 25 February 2019 Events Reprocessing Standards for GSICS reporting

Spectral Band Applicability of MICMICS Vicarious Calibration Methods Function Target Method UV VIS Sun-glint Deep Convective Cloud Snow/Ice Deserts Moon 10 SWIR TIR FIR MW X X X TBD I I ? A T I T ? X X X 2019 (T) (T) X X TBD A T I X X X 2019 X X X T I TBD (A) T I X X (T) 2019 ? ? Vicarious Calibration Tropical Forest NIR MICMICS Availability X (A) (T) T (I) I Rayleigh/ Ocean ? A T I ? X X T 2021 NWP+RTM X X T T T 2021 EUM/RSP/VWG/19/1060449, v 1 Draft, 25 February 2019 Spectral Band Applicability of Vicarious Calibration Methods: A : T : I : S : (): X : Absolute, Trending (in time), Inter-channel (in band), Spectral, Needs development, N/A MICMICS could provide: • independent validation of GS operational tools • backup for added resilience • offline monitoring • inter-calibration capabilities for routine comparison, e. g. with METimage, VIIRS, OLCI and SLSTR, using standard GSICS methods

Spectral Band Applicability of MICMICS Vicarious Calibration Methods (2) Function Target Method Double. Differencing using vicarious results above Inter. Calibration T T Histogram Analysis NIR MW T T 2021 T T SWIR TIR FIR T T (I) (S) T I (S) (T) (T) (T) (I) (S) (T) TBD (2022) (T) (T) (T) TBD Multispectral Comparisons T T (SNO/SCO, (I) Ray-matching) (S) Hyperspectral Comparisons Statistical Calibration UV VIS MICMICS Availability 2019 (2022) Calibration Any of the Change Alerts above 2021 Recalibrate archive Any of the above TBD Append Cal coefficients to L 1 files Any of the above 2021? 11 EUM/RSP/VWG/19/1060449, v 1 Draft, 25 February 2019 Spectral Band Applicability of Vicarious Calibration Methods: A : T : I : S : (): X : Absolute, Trending (in time), Inter-channel (in band), Spectral, Needs development, N/A

Summary of MICMICS • Mission Integrated Calibration Monitoring & Inter-Calibration System • • • 12 will perform and monitor imagers’ calibration of onboard and vicarious calibration systems, for optical imagers on current and future missions in near-real-time in EUMETSAT’s Offline Environment to compare and inter-calibrate these imagers Analyse of their medium- to long-term trends Supports generation of Fundamental Climate Data Records Rationalises resources and efforts Coordinates calibration activities across RSP EUM/RSP/VWG/19/1060449, v 1 Draft, 25 February 2019

Thank you 13 EUM/RSP/VWG/19/1060449, v 1 Draft, 25 February 2019