Second GSICS Users’Workshop:

Slides:



Advertisements
Similar presentations
Global Space-based Inter-calibration System (GSICS) 4 th WCRP Observations and Assimilation Panel (WOAP) Meeting Barbara J. Ryan Director, WMO Space Programme.
Advertisements

The National Hurricane Center and Geostationary Sounders: Needs and Issues NATIONAL HURRICANE CENTER Jack Beven WHERE AMERICA’S CLIMATE AND WEATHER SERVICES.
GSICS Bias Monitoring Routine comparisons of satellite radiances against reference GSICS Correction Function to correct issued radiances For consistent.
ISCCP Calibration 25 th Anniversary Symposium July 23, 2008 NASA GISS Christopher L. Bishop Columbia University New York, New York.
Global Space-based Inter- Calibration System (GSICS) Progress Report Mitch Goldberg, NOAA/NESDIS GSICS Executive Panel chair.
Prepared by Ken Knapp, NOAA/NCDC 3/19/2015.  ISCCP Background  Activities in 2014  Plans for 2015  Potential interactions with other SCOPE-CM projects.
Agency xxx, version xx, Date xx 2016 [update in the slide master] Coordination Group for Meteorological Satellites - CGMS Introduction to GSICS Presented.
June, GSICS USER GUIDE Using GSICS Products and Services Manik Bali, Tim Hewison, Larry Flynn and Jerome Lafeuille 2016 GSICS Executive Panel Meeting.
A Rising Expectation for ISCCP to produce Long-Term Climate Data Records on Satellite Cloud Climatology over 30 years prepared by Toshiyuki KURINO, JMA.
GSICS Coordination Center Report Fangfang Yu, Fuzhong Weng, Fred Wu and George Ohring NOAA/Center for Satellite Applications and Research 8 April, 2013.
Marianne König, Tim Hewison, Peter Miu
Masaya Takahashi Meteorological Satellite Center,
Summary Outcome of the First GSICS Users’ Workshop
A. Lattanzio, R. Roebeling (EUMETSAT)
Project Team (EUMETSAT, JMA, NOAA-NCDC)
GSICS Inter-Calibration for Infrared Bands with Hyperspectral Sounder
Minimising Uncertainty in SBAF - Using AIRS to bridge gap HIRS/2-IASI GSICS meeting, March 2014, Darmstadt, Germany - Change title to more general one.
Review of EUMETSAT’s GEO-LEO Correction
Planned Activities of GSICS Microwave sub-group
Manik Bali, Aleksandar Jelenak
The Global Space-based Inter-Calibration System
Introduction the GSICS Correction
Sébastien Wagner, Tim Hewison In collaboration with D. Doelling (NASA)
Discussion of potential Beta Testing of GSICS Products
Analysis of free tropospheric humidity within CM SAF
JMA’s GSICS and SCOPE-CM activities Presented to CGMS-43 Working Group II session, agenda item 3 (from MTSAT-2) Japan Meteorological Agency.
Strategy for Re-Analysis Products
Fangfang Yu and Fred Wu 22 March 2011
Actions and Recommendations of the Joint Session
Jo Schmetz1 on behalf of Tim Hewison1 EUMETSAT
Closing the GEO-ring Tim Hewison
Meteosat Second Generation
A Strategy for the Inter-Calibration of Solar Channels within GSICS
SCOPE-CM: IOGEO GSICS GRWG & GDWG, March 2018, Shanghai, China
Building-in a Validation cycle for GSICS Products
Update on the GSICS Procedure for Product Acceptance (GPPA)
User’s Expectations of GSICS
Contribution to Agenda Item 8
Planning comparison study SCM IOGEO and GSICS
GSICS Collaboration with SCOPE-CM IOGEO
Update on GSICS Product Development
Moving toward inter-calibration using the Moon as a transfer
Infrared Inter-Calibration Product Announcements
SCOPE-CM: IOGEO GSICS GRWG & GDWG, March 2018, Shanghai, China
Inter-calibration of the SEVIRI solar bands against MODIS Aqua, using Deep Convective Clouds as transfer targets Sébastien Wagner, Tim Hewison In collaboration.
Summary 2017 GRWG+GDWG meeting Tim Hewison
MW Products and Deliverables
Status of the EUMETSAT GSICS DCC product
GRWG+GDWG Web Meeting on Calibration Change Alerts
Intercalibration of AMSU-A,MHS and Update on mitigating loss of AATSR
Use of GSICS to Improve Operational Radiometric Calibration
Developing GSICS products for IR channels of GEO imagers Tim Hewison
Progress toward DCC Demo product
Masaya Takahashi1, Yusuke Yogo1, Qiang Guo2, Xiuqing Hu2, and Na Xu2
Outline Some work by colleagues are presented
Hot summary of the Fourth GSICS Users Workshop
GSICS Products’ Improvements and Developments
GSICS Data and Products Servers
Introduction to GSICS : Organisation, Membership and Scope
SCOPE-CM Statement of Needs John Bates (NOAA, SCOPE-CM Executive Panel Chair) Lothar Schüller (EUMETSAT, SCOPE-CM Secretariat)
Formation of IR Sub-Group and Reference Selection
Tim Hewison1 and all GSICS Developers EUMETSAT
GSICS Product Development Plan for Microwave Instruments
Second GSICS Users’Workshop:
G16 vs. G17 IR Inter-comparison: Some Experiences and Lessons from validation toward GEO-GEO Inter-calibration Fangfang Yu, Xiangqian Wu, Hyelim Yoo and.
Why use NWP for GSICS? It is crucial for climate and very desirable for NWP that we understand the characteristics of satellite radiance biases Simultaneous.
Infrared Sub-Group Report Tim Hewison
Masaya Takahashi1, Yusuke Yogo1, Qiang Guo2, Xiuqing Hu2, and Na Xu2
Special Issue of the IEEE TGRS on “Inter-Calibration of Satellite Instruments”: 21 May 2019 Special session on re-calibration/re-processing – Discussion.
Towards a GSICS DCC product...
Presentation transcript:

Second GSICS Users’Workshop: Preliminary Findings R. Iacovazzi, M. Koenig, J. Lafeuille

Outline Initial questions and answers User feedback on current GSICS deliverables General points Feedback from numerical weather prediction (NWP) Feedback from climate applications Feedback from research project(s) GSICS development plan Requests and recommendations Additional or different satellites/sensors, products, services Other recommendations

Questions/comments from the floor… Important to understand impacts of Point Spread Function (PSF) errors, in addition to Spectral Response Function (SRF) errors Need to consider Total Solar Irradiance variability Is there scope for stratification according to latitude for GSICS Correction? What is impact of GSICS Correction uncertainties on applications (Product dependent - uncertainty requirement to be specified by the users, e.g. NWP and climate monitoring) Physical relevance of tuning the SRF? (e.g., ice contamination) GEO-LEO colocation limited to near-nadir cases? Relevance of GSICS Procedure for Product Acceptance to R&D agencies/missions? Scope for post-operational instruments? GSICS funding ? (in-kind contributions, but sponsors welcome) Synchronize delivery with ECMWF ERA project

General feedback GOES correction impact on Cloud Top Height GSICS correction compared to “in house” correction Doubt on time variability : need time averaging corrections Correction at detector level? AMSU-B time series: Large bias, not constant over time Need MHS – AMSU-B intercomparison

GSICS Impact for NWP JMA: MTSAT water vapor correction and monitoring of derived clear sky radiance: consistency with NWP bias NOAA: SEVIRI and GOES-12 correction impact (significant benefit for forecast > 96hr)

GSICS Impact on Climate Products CM-SAF : Use of GSICS IR correction has strong impact on cloud detection and related statistics Need VIS calibration to properly determine cloud thresholds SCOPE-CM: Historic/current AVHRR: IR calibration, clock errors Albedo: GEO VIS channels, precise subsatellite point Investigate impact of drifting equatorial crossing time

Feedback from Research Users For long term monitoring of water cycle in tropics 1984-1996 time series shows bias in Meteosat water vapor Meteosat: MFG/MSG intercalibration correction needed For Meghatropiques : Interest for intercalibration with GEO IR,VIS and with LEO MW Consider navigation errors as well

Satellite Operators Feedback: GSICS and Operational Calibration CMA: FY-2 correction allows stable calibration (checked against AIRS) NOAA: Intercomparisons used for anomaly resolution Identify discrepancies, find rootcauses (effects of decontamination, midnight blackbody effects..) Allows correcting operational calibration

GSICS Development Plan Review error budget Refine GSICS Monitoring Refine GSICS corrections (product definition / format) VIS channel intercalibration: GEO-LEO , LEO-LEO CLARREO: define transfer standard Operational intercalibration Microwave Refine requirements, work with partners (GPM X-Cal) Define references, traceability Start with AMSU-A

Additional/Different Satellites/Sensor Products and Services Satellite/sensors: VIS channels (for Cloud products, for albedo) HIRS Meteosat MVIRI–SEVIRI Microwave Relevant time window: time averaging ? Navigation error monitoring ? NOAA/POES Clock Investigate/monitor effect of drifting equatorial crossing time Simpler access to GSICS Correction coefficients Embrace research activities in GPPA

Other Comments/Recommendations Improve dialogue with users Further beta testing activities Met Office (Roger Saunders) Microwave Sounding Unit (MSU) CIMSS (S.Ackerman) and MetOffice (R. Saunders): Further assess GEO results SCOPE-CM (J.Bates) to refine its statement of needs ISCCP (poc: Fred Wu and W. Rossow) continuing NOAA: GOES Imager Water Vapor correction impact on Total Precipitable Water, with reference to ground-based GPS Total Column Water Vapor