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    ★ ★ ★ ★ ★ ★ ★ EUMETNET ECSN ★ ★ ★ ★ European Climate Support Network ★ ★ ★ ★ ★ ★ ECSN Annual Report 2005 Prepared by the ECSN Manager, January 2005 General remarks case has been presented and discussed at the 26th EUMETNET Council meeting in Helsinki. The 10th ECSN Advisory Committee (EAC) Mee- The importance of the content of the project was ting has taken place in Copenhagen, Denmark, 8- undisputed and warmly supported. But it was 10 June 2005. The Meeting was well organized by stated that the link with other similar activities, the Danish Meteorological Institute. It was a such as the developments connected with EEA fruitful meeting, also with regard to new activi- and ECMWF regarding the INSPIRE directives, ties. and the link with other ECSN activities, such as ECA&D and ENSEMBLES, have to be improved With the retirement of Volker Vent-Schmidt, and integrated in the proposal. DWD, the EAC has lost an engaged Chairman. As new Chairman of the EAC , Aryan van Enge- The ECMWF workshop to discuss a potential Eu- len, KNMI, was unanimously elected. ropean Regional Reanalysis project (EURRA) has taken place in Reading, in November 2005. The Recently the ECSN Climate Atlas of Europe has future results of EURRA, high resolution meteo- been made available on a CD-ROM, providing rological fields with about 2 km resolution cover- monthly normals and additional statistical infor- ing Europe, will mean an immense increase in mation for selected parameters. potential benefits for Europe related to environ- ment, meteorology, climatology, hydrology and to The Austrian Meteorological Institute has prepa- sectors such as energy and agriculture. The red a proposal for a new ECSN project "High Re- ECSN EUROGRID concept has also been presen- solution Temperature Climatology in Complex ted at the EURRA workshop, and it looked rea- Terrain - demonstrated in the test area Greater sonable to relate the EUROGRID concept to the Alpine Region (GAR)". This new project has been EURRA approach. approved by the EUMETNET Council at its 24th Meeting in April 2005. The combined Conference of the European Meteo- rological Society (EMS) together with the Euro- With the purpose to realize a EUROGRID pro- pean Conference on Applied Meteorology (ECAM) gramme and to study the feasibility of such a con- has taken place in Utrecht, in September 2005. cept, a preliminary project for a showcase has This EMS/ECAM Conference contained also a been worked out. A proposal for such a showcase substantial part of Climatology, managed by EC- was prepared by SMHI in close co-operation with SN. ECSN to create and to promote a rational and quality assured climatological production of high The 5th ECSN Data Management Workshop has resolution gridded data. This EUROGRID Show- taken place in De Bilt, The Netherlands, in De- 1

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    ★ ★ ★ ★ ★ ★ ★ EUMETNET ECSN ★ ★ ★ ★ European Climate Support Network ★ ★ ★ ★ ★ ★ cember 2005. The following main topics have increased in this period from 300 to 1700. As new been presented and discussed: Data rescue, Data- data entered the system, new activities needed to bases, Gridding and UNIDART. About 80 partici- be done, such as improving quality control proce- pants have discussed the actual state of climate dures, finalizing the GIS-functionality and proce- data management in Europe. This successful dures which enable to process raw data in various ECSN Workshop was very well organized by formats in such a way, that this data can be fur- KNMI. ther processed by the ECA&D system. This last point is certainly something that is worth to pick It is planned that the next combined Conference up in the future, for example a development of a of the European Meteorological Society (EMS), to- general purpose data entry module in the gether with the European Conference on Applied ECA&D system. Experience learned that about Climatology (ECAC), will take place in Ljubljana, 60% of the project time is consumed by transfe- Slovenia, 4-8 September 2006. ECSN will be re- ring the various formats of raw data into the one- sponsible for the scientific part of the ECAC- size-fits-all format . 2006. Currently, the ECA&D system does now offer all European Climate Assessment & Dataset (KNMI) the data that has been provided so far. Also, the GIS-functionality is now available as well. But Following the document that describes the tech- work continues, in the year 2006 new data will be nical work of the ECA&D project, prototypes were inserted into the system. developed for the operational database and for the new web-interface. ENSEMBLES (KNMI, MeteoSwiss) In March 2005, the ECA&D participants have The project ENSEMBLES is a European Union been asked for updates of the available data se- FP6 integrated project (http://www.ensembles- ries in ECA&D, and for new elements, as humidi- eu.org/). It covers climate change modelling on ty, sunshine duration and snowdepth, to be added time scales from seasons to decades and model va- in ECA&D, in order to get new inputs to the onco- lidation using observational datasets. ming Assessment Report. The infrastructure of ECA&D is quite capable of handling such a vast ENSEMBLES consists of 10 research themes, amount of data. But new elements introduced in while each research theme is divided into several ECA&D involves the development of new quality work packages. KNMI and MeteoSwiss co-opera- control procedures. te in the work package that involves the develop- ment of a daily resolution gridded dataset for Eu- These requests from the participants, together rope. The gridded datasets will include several with data from other projects, resulted into a vast climate variables, as minimum/maximum tempe- growing amount of new and updated data series. rature, precipitation, air pressure and snow co- Currently, the amount of data series has grown ver, and the datasets will go back as far as station from nearly 1000 (March 2005) to 5200 (October data availability allows (45 years, or possibly 2005). Furthermore, the amount of stations even longer). The resolution of the datasets 2

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    ★ ★ ★ ★ ★ ★ ★ EUMETNET ECSN ★ ★ ★ ★ European Climate Support Network ★ ★ ★ ★ ★ ★ should be high enough to capture extreme A website for the ENSEMBLES gridding project weather events. was launched in October 2005: http://www.knmi.nl/samenw/ensembles_rt5/ The gridded datasets are going to be built on a WP51.html. dense network of daily station data. Therefore, the dataset developed in ECA&D serves as a good Generate Climate Monitoring Products (DWD) start for this network. However, the eventual grid resolution is going to be 25 km. For this reason, The project Generate Climate Monitoring Pro- additional data series have been requested. Fur- ducts which was completed early in 2004 is con- thermore, daily series collated within several tinued since then in a quasi operational stage. other national or international projects will be The climate monitoring products distributed un- used to obtain a dense network of data series. der GCMP are accessible through: http://www.gcmp.dwd.de KNMI and MeteoSwiss started in February 2005 with the collation, quality control and homogeni- The number of participating European National zation of data series which will be used for the Meteorological and Hydrological Services as well gridding process. as the number of monitoring products they contri- bute to the project are still going up, presently 18 So far, nearly 700 European stations have been Services are taking part. collected in the ENSEMBLES database. Since 4200 stations would be needed for a station den- Meanwhile the development of a successor plat- sity of one station per 2500 km2, many more data form, EuCLIS, starting from the existing proto- have to be collected! type GCMP, is under way. According to the plans it will be operational by the end of June 2006. KNMI and MeteoSwiss are investigating several Currently the software design is developed. There methods for the quality control procedure to be will be administration tools available to the parti- applied to the ENSEMBLES database, and te- cipating countries by which they can configure sting several methods to detect inhomogeneities the paths to the products they wish to contribute. in the series. The British ENSEMBLES partners will develop and evaluate several gridding me- Parallel to the development of the EuCLIS plat- thods. The daily gridded datasets should be pro- form, a proposal for the establishment of a new duced by the end of 2007, and will be accompanied ECSN project "European Climate Information by estimates of data uncertainty. System", EuroCLIS, will be submitted for the pro- vision of national and European climate monito- In order to prevent a chaos in European data po- ring products. In EuroCLIS the contributions to licy, the ECSN Delegates have decided that the the EuCLIS platform and the cooperation of the ECA&D data policy has also to be applied to the participating countries will be planned and orga- ENSEMLES data. That is to say, the National nized. It is envisaged to extend the participating Weather Services remain the data owners, also countries also to the WMO Region VI. for the gridded ENSEMBLES data sets. 3

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    ★ ★ ★ ★ ★ ★ ★ EUMETNET ECSN ★ ★ ★ ★ European Climate Support Network ★ ★ ★ ★ ★ ★ Alpine Tmap (ZAMG) product, the results will serve as direct, and so far not existing, basic data input for a large field of Recently the ECSN Climate Atlas of Europe, led applications in related climate-sensitive research by Météo-France, has been made available a CD- areas. ROM, providing monthly normals and additional statistical information for selected parameters. In At the 26th Council meeting the Programme De- the Atlas project proposal it was stated that the cisions have been validated and financial support Atlas will be made available without maps. Maps will be given by the countries Austria, France, could be added at a later stage when the GIS pro- Germany, Hungary, Italy, Luxembourg, Norway, ject reaches a conclusion Switzerland and United Kingdom. In the meantime the Austrian Meteorological In- The official project start has been dated with 1st stitute has taken the initiative to launch a new of January 2006. However, a lot of pre-project ECSN project "High Resolution Temperature Cli- work has been carried out. matology in Complex Terrain - demonstrated in the test area Greater Alpine Region (GAR)". The In a first step, data collection was characterised project will provide a high quality data product by an intensive search for existing temperature for a special European region based on the expe- data for the period 1961-1990 with the leading riences and knowledge of the involved countries. principle to achieve the highest possible spatial However, the results and findings can be genera- density. The original number of collected single lised and transfered to other European countries station datasets was approximately 1800, but not with a complex orography and therefore with sub- all of them met the requirements in terms of com- grid scale problems in spatial interpolation. pleteness and data-quality. Finally a network of 1704 stations passed the location-correction and The project proposal „Alpine Tmap“ has been ap- the gap-filling and sample adjustment procedu- proved by the EUMETNET Council at its 24th res. Meeting in April 2005. ZAMG will act as Respon- sible Member. The proposed project has a 2-year time-table, and it will compromise on the computation period by Dr. Walter Kirchhofer splitting the time-frames into two separate steps. MeteoSwiss Firstly 1961-1990, which is the WMO period and has optimised network density, and secondly 1971-2000, the „modern period“ which endorses the Climate Atlas of Europe. The main deliverable will be a mean monthly temperature field in a 1km resolution. In addition to its value as a classical state of the art climate 4

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