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Vous êtes ici : Accueil / Actualités / Séminaires / Archives / Séminaire Septembre 2012 - Aout 2013 / Mercredi 28 novembre - SUSTAINED CLIMATE DATA RECORD GENERATION AT EUMETSAT


Par SEMSOU Dernière modification 12/02/2013 12:32
Quand ? Le 28/11/2012,
de 11:00 à 13:00
Où ? Salle Coriolis
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Participants Jörg Schulz (European Organisation for the Exploitation of Meteorological Satellites, Darmstadt, Germany)
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Jörg Schulz
European Organisation for the Exploitation of Meteorological Satellites, Darmstadt, Germany





Abstract :

Climate change is one of the greatest challenges facing mankind in the twenty-first century. Observations from space provide unique information of the climate system, so it is evident, that the future of the global climate observing system depends critically upon a major satellite component. This has also been recognised by the UNFCCC and its subsidiary bodies.
An improved understanding of the Earth System – of its weather, climate, oceans, land, geology, natural resources, ecosystems, and natural and human-induced hazards – is essential if we want to better predict and mitigate against the expected global changes and the impacts on human civilisation. Data collected by, and information created from, Earth observations constitute critical inputs in the development of this understanding – providing evidence for informed decision-making, supporting the science which underpins strategies for global environmental governance, and for monitoring our progress on all geographical scales – as we explore new development paths aimed at sustainable management of the Earth.
Satellite operators are responsible for the development and operations of the satellites and its sensors, and the processing of satellite data, from which satellite products can be generated in an operational mode (e.g. Near Real Time processing of data supporting weather forecast applications). These kinds of data can well support environmental monitoring applications, however, it is recognised, that higher level applications, e.g., climate variability and change analysis requires well calibrated observations and long-term homogeneity of long time series of data. Satellite data of such kind are referred to as Climate Data Records (CDR) and are generated through careful recalibration and reprocessing activities. Such activities have been considered by the EUMETSAT member states as the main focus of EUMETSAT’s activities in support to Climate Monitoring.
This presentation provides an overview of EUMETSAT’s activities in CDR generation. It gives examples of currently produced CDRs for the use in climate analysis and Numerical Weather Prediction (NWP) model based reanalysis. At the core of the activities are the long existing data records of the EUMETSAT Meteosat and Eumetsat Polar System program satellites. In particular the usage of the Meteosat data presents a challenge because the instruments were originally not designed to be used for climate monitoring. Thus, the homogenisation of the time series is a critical activity. The presentation also gives an overview how international collaboration is organised and how this lead to improved Climate Data Records.

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