EUMETSAT activities towards FCDRs for water vapour

Jörg Schulz EUMETSAT EUM/OPS/VWG/11/0361 Issue 1 05/03/2011 GEWEX/GlobVapour Water Vapour Workshop

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Content

• Background • Observations • Activities Meteosat • Activities Metop • Plan

EUM/OPS/VWG/11/0361 Issue 1 05/03/2011 GEWEX/GlobVapour Water Vapour Workshop

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EUMETSAT’s Climate Monitoring Implementation Plan

EUMETSAT Convention (November 2000): Commitment to support Climate Monitoring and Climate Change Detection GSICS CEOS SCOPE CM ESA CCI EUM/OPS/VWG/11/0361 Issue 1 05/03/2011 Council Resolution (July 2009):

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Consideration of Climate requirements in programme preparation Generation of Climate Data Records (CDR) Fundamental and Thematic (FCDR+TCDR) Internal and external coordination and communication SAF Climate Monitoring Implementation Plan (July 2010) CAF

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Description of tasks implementing the Council Resolution Instrument to coordinate and document related activities, and to monitor its progress (towards Delegate Bodies)

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Links to frameworks in which related (sub-)tasks are implemented GEWEX/GlobVapour Water Vapour Workshop

Providing data for climate monitoring

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Past and current satellites and programmes:

Meteosat: since 1977, second generation since 2002 EPS/Metop: since 2006 Jason-2: since 2008, continuing Jason-1 and TOPEX Poseidon • • • •

New and future programmes:

Meteosat Third Generation (MTG) EPS-SG Jason-3 Operator for ESA/EC Sentinels-3, -4 and -5 Taking into account requirements and principles of the GCOS Climate Monitoring Principals related to: - calibration, characterisation, continuity, consistency and sustainability Together with a long-term planning with a horizon until 2035.

EUM/OPS/VWG/11/0361 Issue 1 05/03/2011 GEWEX/GlobVapour Water Vapour Workshop Meteosat Transition Programme (1 st generation) Meteosat Second Generation EUMETSAT Polar System Jason OST Mission

Water Vapour observations for climate

• • • • • • • • MFG, MSG, MTG all have 6.3  m channel, creates time series from 1982 – 2038; MSG and MTG have 7.3  m channel, creates time series from 2004 – 2038; MTG-I will have 914 nm channel and MTG-S has on IRS 800 channels in LWIR (700 – 1210 cm-1 or 14.3 – 8.3 µm) and 920 channels in the MWIR (1600 – 2175 cm -1 or 6.25 – 4.6 µm); Metop carries IASI, IR spectrum 4-50  m that is planned to be continued with IASI-NG on EPS-SG until 2040; Metop continues NOAA HIRS observations available since 1979 until Metop-B to be launched in 2012 (after HIRS can be constructed from IASI); Metop continues NOAA AMSU-B observations with MHS, this mission has highest priority for EPS-NG; Metop continues GOME/Sciamachy record with GOME-2 until ~2020, GMES-5 is planned to continue this series; Metop contributes with GRAS to the network of RO missions.

EUM/OPS/VWG/11/0361 Issue 1 05/03/2011 GEWEX/GlobVapour Water Vapour Workshop

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METEOSAT 1984-2005 Archive evaluation using radiosondes

METEOSAT2 MET4 MET3 MET3 METEOSAT4 METEOSAT5 MET6 METEOSAT7 Upgrade of calibration technique (Schmetz, 1989) Upgrade of calibration technique (van de Berg, et al., 95) ISCCP DX Normalized Instead of nominal

Comparisons between the METEOSAT BTs and the simulated BTs from radoisoundings: (+) represent the raw data, ( ◊ ) represent the homogeneised data. The histogram shows the nb of soundings used for comparison.

Can we do better than that and extend to SEVIRI?

Courtesy of Helene Brogniez and Rémy Roca, LMD EUM/OPS/VWG/11/0361 Issue 1 05/03/2011 GEWEX/GlobVapour Water Vapour Workshop

Plan for MVIRI and SEVIRI Infrared Intercalibration

• • • Use inter-calibrated HIRS from NOAA/NCDC (adjusted to HIRS on NOAA12) with GSICS collocation and inter-calibration procedures taking HIRS as truth; Control intercalibration using ARSA (Analyzed Radio Soundings Archive) database from LMD; Control intercalibration in overlapping areas after IODC start, e.g., Met-5 vs. Met-7; Derive AMV and other parameters from inter-calibrated radiance and document changes.

• • Deliver both FCDR data and corrections to be applied by expert users (SAFs, ECMWF reanalysis); • • Need to implement common cloud detection (need one for both); Development and implementation targeted for 2011/2012; Longer Term: • • Implement inter-calibration based on IASI (based on GSICS and collaboration with projects in the NOAA CDR program)). Estimate potential and feasibility of further improving MVIRI level 1.5 by reanalysing the image archive.

EUM/OPS/VWG/11/0361 Issue 1 05/03/2011 GEWEX/GlobVapour Water Vapour Workshop

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Meteosat-9 vs. IASI

EUM/OPS/VWG/11/0361 Issue 1 05/03/2011 GEWEX/GlobVapour Water Vapour Workshop

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Operational near real time monitoring of L0/L1 helps to assess instrument performance and to identify issues

CH 12 ( 6.52  m )

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CH 11 ( 7,33  m ) CH 8 ( 11.9  m )

CH 9 CH 10 HIRS MCT detector channels 8 to 12 (SURF, O3, H20) from IASI L0/L1 NRT monitoring Issue 1 05/03/2011 GEWEX/GlobVapour Water Vapour Workshop Figure: Lars Fiedler, EUMETSAT

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N-19 MHS Validation using SNO’s

=> Significant Bias due to high space view correction factors => High space view correction factors due to wrong noise floor of antenna pattern

EUM/OPS/VWG/11/0361 Issue 1 05/03/2011 GEWEX/GlobVapour Water Vapour Workshop Figures: Jörg Ackermann, EUMETSAT

N-19 MHS Validation using SNO’s

=> Correction of the antenna pattern => Re-calculation of the space view correction => Repetition of the SNO analysis

EUM/OPS/VWG/11/0361 Issue 1 05/03/2011 GEWEX/GlobVapour Water Vapour Workshop Figures: Jörg Ackermann, EUMETSAT

Metop-A and Metop-B

EUM/OPS/VWG/11/0361 Issue 1 05/03/2011 Metop-A Metop-A + Metop-B Metop-A/B Overlap Metop-A/B Coincident Scanning Angles

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Potential Applications: AVHRR/3 winds in non-polar areas GEWEX/GlobVapour Water Vapour Workshop Estimate asymmetric scan bias for AMSU/MHS Figure: Jörg Ackermann, EUMETSAT

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EUMETSAT Climate Data Records Overview (~next 3 years)

Aim for combined FCDR for Meteosat series (MVIRI, SEVIRI homogenised radiance record); Aim incrementally for FCDRs for all Metop instruments (first records using latest operational algorithm version are called interim FCDR); Aim to support NOAA STAR/NCDC FCDRs for all NOAA heritage instruments on Metop (AVHRR, HIRS, AMSU-A/B, MHS); Aim at consistent radio-occultation data (bending angles) back to 2001 from GRAS, CHAMP, GRACE and COSMIC sensors; TCDR production aims at ECVs plus typical data for assimilation in atm. reanalysis as Atmospheric Motion Vectors (MVIRI, SEVIRI, AVHRR); FCDR and TCDR production is performed within the distributed ground segment, i.e., at Central Application Facility (CAF) and Satellite Application Facilities (SAFs); Supports specific international activities as WMO (GSICS, SCOPE-CM), ECMWF Reanalysis, WCRP (GEWEX Radiation Panel Reprocessing and Assessment), ESA Climate Change Initiative.

EUM/OPS/VWG/11/0361 Issue 1 05/03/2011 GEWEX/GlobVapour Water Vapour Workshop

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