Organisational charts KNMI

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1 Appendices

2 Organisational charts KNMI 90 Appendices

3 Observations and Modelling Department Climate Research and Seismology Department 91 Appendices

4 Publications Numerical Modelling Research and Development The Numerical Modelling Research and Development Division is responsible for research into, and development of, numerical weather prediction models and other meteorological applications, which are operationally used at knmi. Within the division, the following activities are performed: 1. Applied research in the field of numerical weather prediction: atmospheric and oceanographic modelling, physical and statistical postprocessing methods, and related applications on the interpretation, verification and economic value assessment of meteorological data 2. Development and scientific maintenance of methods, models, applications and tools for operational weather forecasting 3. Advice and transfer of expertise to external users, mainly in Dutch government agencies. Research activities focus on: 1. Short range (0-48 hours) forecasting and nowcasting of the atmosphere and sea state in and around the Netherlands on horizontal scales of ca. 10km 2. Improvement of the prediction and nowcasting of high-impact weather: wind storms and gusts, storm surges, severe precipitation, thunderstorms and strong convection, fog, high sea waves, road icing 3. The development of detailed mesoscale models and downscaling techniques suitable to describe the atmosphere and sea state at horizontal scales of 1-3 km 4. The description of uncertainty in the development of the atmosphere and sea state, by means of probabilistic forecasting techniques. The emphasis is on optimising the use of probabilistic information in early warning systems for severe weather events and on the development of short-range ensemble forecasting methods 5. The development of applications aiding the interpretation of weather forecasts for specific user groups such as aviation and water management. Publications in reviewed journals Guo-Larsen, X., V.K. Makin and A.S. Smedman,. Impact of waves on the sea drag: measurements in the Baltic Sea and a model interpretation. The Glob. Atm. Oc. System, 9, Makin, V.K.,. A note on a parameterization of the sea drag. Bound.-Layer Meteor., 106, Meirink, J.F., V.N. Kudryavtsev and V.K. Makin,. Note on the growth rate of water waves propagating at an arbitrary angle to the wind. Bound.-Layer Meteor., 106, Wichink Kruit, R.J., A.A.M. Holtslag and A.B.C. Tijm,. Scaling of the Sea-Breeze Strength with Observations in the Netherlands. Bound.-Layer Meteor., 112, Kudryavtsev, V.N. and V.K. Makin,. Impact of swell on marine atmospheric boundary layer. J. Phys. Oceanogr., 34, Rooy, W.C de, and K. Kok,. A Combined Physical-Statistical Approach for the Downscaling of Model Wind Speed. Wea. Forecasting, 19, Other reviewed publications Mark, P. van der, A.A.M. Wolters and G.J. Cats,. Automatic Code Generation for Large Scale Applications. 92 Appendices

5 Proceedings of the 10th International Workshop on Compilers for Parallel Computers, January, Amsterdam, The Netherlands, Mark, P. van der, A.A.M. Wolters and G.J. Cats,. Automatic Code Generation for a Convection Scheme. Proceedings of the 18th ACM Symposium on Applied Computing, special track on Parallel and Distributed Systems and Networking, March, Melbourne (Fl), USA, ACM Press, Mark, P. van der, A.A.M Wolters and G.J. Cats,. Code Generation for Semi-Lagrangian Formulations. Proceedings of the 2nd International Symposium on Parallel and Distributed Computing, October, Ljubljana, Slovenia, IEEE Computer Society Press, Undén, P., H. Järvinen, E. Rodríguez and G.J. Cats,. HIRLAM-5 Final Report. September, pp 144. Available from the HIRLAM-6 Project, c/o SMHI, S Norrköping, Sweden. Mark, P. van der, A.A.M. Wolters and G.J. Cats,. Semi-Lagrangian Formulations with Automatic Code Generation for Environmental Modeling. Proceedings of the 19th ACM Symposium on Applied Computing (SAC04), March, Nicosia, Cyprus, ACM Press, Mark, P. van der, G.J. Cats and A.A.M. Wolters,. A Dynamic Application-Driven Data Communication Strategy. Proceedings of the 18th ACM International Conference on Supercomputing, June, Saint-Malo, France, ACM Press, Other publications Blaauboer, D.,. Pilot implementation of a BUFR exchange of reports from Automatic Weather Stations (AWS), including present weather parameters. Final report of EUMETNET PWS-GTS project ( Cats, G.J.,. Reference system status. HIRLAM newsletter, 43, Cats, G.J.,. Reference system status September. HIRLAM newsletter, 44, Guo-Larsen, X., V.K. Makin and A.-S. Smedman,. Impact of waves on the sea drag: measurements in the Baltic Sea and a model interpretation. Geophysical Research Abstracts, 5, EAE03-A-00786, EGS-AGU-EUG Joint Assembly, April 6-11, Nice, France, published on CD-ROM. Kok, K.,. Verification of ECMWF products at the Royal Netherlands Meteorological Institute. Verification of ECMWF products in Member States and Co-operating States, Report, available at ECMWF. Kruizinga, S.,. Interpretatie en gebruik van kansverwachtingen. Meteorologica, 1, (in Dutch). Kruizinga, S.,. Leerzame experimenten met een eenvoudig niet-lineair systeem 1 - Foutengroei in niet-lineaire systemen. Meteorologica, 3, (in Dutch). Kruizinga, S. and K. Kok,. Leerzame experimenten met een eenvoudig niet-lineair systeem (2) - Dagelijkse variaties in de foutengroei en ensemble verwachtingen. Meteorologica, 4, (in Dutch). Kudryavtsev, V.N. and V.K. Makin,. The impact of swell on the sea surface drag. Geophysical Research Abstracts, 5, EAE03-A-00271, EGS-AGU-EUG Joint Assembly, April 6-11, Nice, France, published on CD-ROM. Makin, V.K. and V.N. Kudryavtsev,. Wind over waves coupling. Wind Over Waves II: Forecasting and Fundamentals of Application, 46-56, S.G. Sajjadi and J.C.R. Hunt (Eds.), Horwood Publishing Limited, Chichester, England. Makin, V.K. and V.N. Kudryavtsev,. Attenuation of swell by the wind. Geophysical Research Abstracts, 5, EAE03-A-00770, EGS-AGU-EUG Joint Assembly, April 6-11, Nice, France, published on CD-ROM. Makin, V.K. and M. Stam,. New drag formulation in NEDWAM. KNMI Technical Report TR-250. Meijgaard, E. van, and E.I.F. de Bruijn,. Performance of HIRLAM with ECMWF physics. HIRLAM newsletter 44, Moene, T.,. HIRLAM en de watersnoodramp van Meteorologica 1, (in Dutch). Rooy, W.C. de,. Modified roughness in ISBA and validation of CBR updates. Hirlam Newsletter, 44, Rooy, W.C. de,. Vertical profiles in the stable boundary layer. KNMI Memorandum WM Tijm, A.B.C.,. Different aspects of CBR/CLJ. HIRLAM Newsletter, 44, Appendices

6 Tijm, A.B.C.,. Characteristics of CBR and STRACO versions. HIRLAM Newsletter, 43, Vries, J.W. de,. KNMI s Computer Infrastructure and ECMWF. In: Report on the fifteenth meeting of Computing Representatives, May, ECMWF, Technical Memorandum 413. Cats, G.J.,. Reference system status April. HIRLAM newsletter, 45, Cats, G.J.,. Reference system status. HIRLAM newsletter, 46, Cats, G.J.,. A new structure for HIRLAM runs. HIRLAM newsletter, 46, Caulliez, G., D.W. Wang, V.N. Kudryavtsev, V.K. Makin and P.A. Hwang,. Impact of dominant waves on short waves and momentum flux at the sea surface: a laboratory experiment. Geophysical Research Abstracts, 6, EGU04-A-02292, EGU General Assembly, April 25-31,, Nice, France, published on CD-ROM. Hwang, P., D. Wang, G. Caulliez and V. Makin,. An empirical investigation of source term balance of capillary-gravity waves. Geophysical Research Abstracts, 6, EGU04-A-00276, EGU General Assembly, April 25-31,, Nice, France, published on CD-ROM. Jacobs, A.J.M. and N. Maat,. AUTOTREND - Automated guidance for short-term aviation weather forecasts. Paper at 11th AMS Conference on Aviation, Range and Aerospace Meteorology, Hyannis, MA, USA, published on CD-ROM. Kok, K. (Ed.),. Application and verification of ECMWF products at the Royal Netherlands Meteorological Institute. Verification of ECMWF products in Member States and Cooperating States. Report. Available at ECMWF. Kroes, P. and A.B.C. Tijm,. Short range ensemble forecasting of convective precipitation. HIRLAM Newsletter, 45, Kruizinga, S. and K. Kok,. Leerzame experimenten met een eenvoudig niet-lineair systeem (3) - Verificatie van ensembleverwachtingen. Meteorologica, 1, (in Dutch). Kruizinga, S. and K. Kok,. Leerzame experimenten met een eenvoudig niet-lineair systeem (4) Skill van het ensemble gemiddelde. Meteorologica, 3, 7-11 (in Dutch). Kudryavtsev, V., V. Makin, P. Hwang, D. Wang and G. Caulliez,. Statistical properties of capillarygravity waves: laboratory study and analysis. Geophysical Research Abstracts, 6, EGU04-A-02151, EGU General Assembly, April 25-31,, Nice, France, published on CD-ROM. Lefèvre, J.M., S.E. Stefanescu and V. Makin,. Implementation of new source terms in a third generation wave model. Proceedings 8 th Wave Hindcasting and Forecasting Workshop, November 14-19, Hawaii, USA. Makin, V.K., G. Caulliez and V.N. Kudryavtsev,. Drag of the water surface at limited fetch: laboratory measurements and modelling. Geophysical Research Abstracts, 6, EGU04-A-00113, EGU General Assembly, April 25-31,, Nice, France, published on CD-ROM. Mark, P. van der, A.A.M. Wolters and G.J. Cats,. Optimizing Data Communication for Semi-Lagrangian Formulations on a Distributed Memory Cluster. Proceedings of the 10th Annual Conference of the Advanced School for Computing and Imaging (ASCI), June, Ouddorp, The Netherlands, Rooy, W.C. de, K. Kok, S. Tijm and D. Vogelezang,. Geslaagde signaalfunctie Hirlam bij extreme neerslag van augustus in Noord Nederland. KNMI-Memorandum WM (in Dutch). Rooy, W.C. de, K. Kok, S. Tijm and D. Vogelezang,. Een ontspoord Hirlam model? Meteorologica, 4, 7-10 (in Dutch). Stefanescu, S.E., J.M. Lefevre, A. Kortcheva and V. Makin,. Recent developments in physical parameterizations used in VAG and WAM wave models. Proceedings Black Sea Coastal-Air-Sea Interaction/ Phenomena Workshop, May,, Constanta, Romania. Schmeits, M.J.,. Het nieuwe MOS-systeem voor (zwaar) onweer (The new MOS-system for (severe) thunderstorms), Uitgezocht, 37, 6-8 (in Dutch). Schmeits, M.J., C.J. Kok and D.H.P. Vogelezang,. Kansverwachtingen voor (zwaar) onweer met behulp van model output statistics (MOS) (Probability forecasts of (severe) thunderstorms using model output statistics (MOS)). Meteorologica, 2, (in Dutch). Schmeits, M.J., C.J. Kok and D.H.P. Vogelezang,. Probabilistic forecasting of (severe) thunderstorms in the Netherlands using model output statistics. EMS Annual Meeting Abstracts, 1, 4th Annual Meeting of the European Meteorological Society,, Nice, France. Tijm, A.B.C.,. The future Hirlam at KNMI. HIRLAM Newsletter 45, Appendices

7 Tijm, A.B.C.,. Tuning CBR. Hirlam Newsletter, 46, Tijm, A.B.C.,. Hirlam pseudo satellite images. Hirlam Newsletter, 46, Vries, J.W. de,. KNMI s Computer Infrastructure and ECMWF. Report on the sixteenth meeting of Computing Representatives, April, ECMWF Technical Memorandum 438. Wang, D.W., P.A. Hwang, G. Caulliez, V.N. Kudryavtsev and V.K. Makin,. A laboratory investigation of effects of long waves on statistical properties of short waves. Geophysical Research Abstracts, 6, EGU04-A-07401, EGU General Assembly, April 25-31,, Nice, France, published on CD-ROM. Westrhenen, R.M.,. Het berekenen, verifieren en corrigeren van radarneerslagsommen. KNMI Technical Report TR-253 (in Dutch). 95 Appendices

8 Publications Observations Research and Development The Observations Research and Development Division is responsible for in situ and remote sensing (including satellite) observations and their: Content quality and functionality Enhancements Maintenance and availability of knowledge and expertise on observations. The division is also responsible for the functional enhancements of systems for (automatic) data processing, storage, and the availability of data and metadata. In various studies, the division has designed components of the future Dutch observational network: upper-air observations, the synoptical network, and meteorological observations in coastal areas. These designs are intended for implementation. The division participates in the Ocean and Sea Ice and Numerical Weather Prediction saf; being primarily responsible for the development of algorithms for the satellite scatterometer wind observations. Although not a participant in the Nowcasting saf, the division has validated some saf products within the eu project cloudmap. knmi installed the Nowcasting saf software and the products are demonstrated to the forecasters in the weather service. For the esa Core Explorer Atmospherics Dynamics Mission, the division contributes to the specification of the Doppler wind lidar system to be flown (Aeolus), and to simulated impact studies. To better exploit the potential of knmi s two Doppler radars several algorithms are developed. Vertical radar wind profiles are created routinely and can be implemented operationally. To enable water managers to use radar rainfall data as quantitative information, radar precipitation sums have been calibrated against in-situ precipitation observations. The division contributed significantly to the study of extracting integrated water vapour data from European Global Positioning System stations for meteorological applications. Finally the the division s ict group is very active in r&d for database development (for satellite data) and gis applications in Climate and Meteorology. Publications in reviewed journals Holleman, I. and H. Beekhuis,. Analysis and Correction of Dual-PRF Velocity Data. J. Atmos. Oceanic. Technol., 20, Marseille, G.J., and A. Stoffelen,. Simulation of wind profiles from a space-borne Doppler wind lidar. Quart. J. Roy. Meteor. Soc., 129, Haan, S. de, S.J.M. Barlag, H. Klein Baltink and F. Debie,. Synergetic use of GPS water vapour and Meteosat images for Synoptic Weather Forecasting. J. Appl. Meteor., 43, Haan, S. de, and H. van der Marel,. The influence on GPS estimates of NWP derived mapping functions. Phys. Chem. Earth, 29, Portabella, M. and A. Stoffelen,. A probabilistic approach for SeaWinds data assimilation. Quart. J. Roy. Meteor. Soc., 130, Other reviewed publications Alfieri, R., R. Cecchini, V. Ciaschini, L. dell Agnello, A. Gianoli, F. Spataro, F. Bonnassieux, P. J. Broadfoot, G. Lowe, L. Cornwall, J. Jensen, D. Kelsey, K. Frohner, D. L. Groep, W. Som de Cerff, M. Steenbakkers, 96 Appendices

9 G. Venekamp, D. Kouril, A. McNab, O. Mulmo, M. Silander, J. Hahkala and K. Lhorentey,. Dynamic User Communities in a Grid of Autonomous. Managing CoRR cs.dc/ Bastiaanssen, W.G.M. and H. Roozekrans,. Vlakdekkende actuele verdamping van Nederland operationeel beschikbaar. Stromingen, 9(4), 5-19 (in Dutch). Benschop, H.,. Guide to meteorological observations in the Netherlands. Paper for the ICEAWS conference, Malaga, February. Marseille, G.J. and A. Stoffelen,. Measurement error and correlation impact on the Atmospheric Dynamics mission (MERCI). Proceedings 12th Coherent Laser Radar Conference, Bar Harbor Maine, June. Stoffelen, A,. Routine Scatterometer Winds for the Mediterranean. Contribution to Building the European Capacity in Operational Oceanography, ed. by Dahlin et al., Elseviers publishers Oceanography Series volume 69, Proc. 3rd Int. Conf. On EuroGOOS, 3-6/12/ 02. Fusco, L., J.Linford, W. Som de Cerff, C. Boonne, C. Leroy and M. Petitdidier,. Deployment of Earth Observation Applications on the European DataGrid Testbed. Global Grid Forum 10, The Future of Data Grid Environments Workshop,, Berlin, Germany. Marseille, G.J., A. Stoffelen and J. Barkmeijer,. The use of sensitivities to assess the added value of future space-borne Doppler wind lidars in extreme weather events. 1st THORPEX International Science Symposium, 6-10/12/ 04, Montréal, Canada. Marseille, G.J., A. Stoffelen and J. Barkmeijer,. The use of sensitivity structures to assess the impact of future space-borne Doppler wind lidars on forecasting extreme weather events. The 6th Int. Workshop on ad joint applications in dynamic meteorology, 23-28/5/ 04, Maratea, Italy. Niinimaki, M., J. White, W. Som de Cerff, J. Hahkala, T. Niemi, and M. Pitkanen,. Using Virtual Organizations Membership System with EDG s Grid Security and Database Access. Grid and Peer-to-Peer Computing Impacts on Large Scale Heterogoneous Distributed Database Systems, GLOBE, Zaragoza, Spain. Proceedings published by IEEE Computer Science Press, Stoffelen, A. (contribution),. Discussion on the meeting on Statistical approaches to inverse problems. J. of the Royal Statistical Soc. Ser., B 66 (3), Other publications Alberoni, P.P., V. Ducrocq, G. Haase, I. Holleman, M. Lindskog, B. MacPherson, M. Nuret and A. Rossa,. Quality and Assimilation of Radar Data for NWP - a Review. WG3 of COST-717, EU (Brussels), EUR 20600, 38 pp. Benschop, H.,. Quality and representativity wind observations airports Royal Airforce. Internal document KNMI, De Bilt, The Netherlands, january. Delobbe, L. and I. Holleman,. Radar-based Hail Detection: Impact of Height Assignment Errors on the Measured Vertical Profiles of Reflectivity. 31th Conference on Radar Meteorology, AMS, Seattle, USA, August, Haan, S de, and S. J. M. Barlag,. The use of Near Real Time GPS-IWV for Operational Meteorology and Nowcasting. International Workshop on GPS Meteorology - GPS Meteorology: Ground-Based and Space- Borne Applications, Tsukuba, Januari 14-17, Japan, Holleman, I.,. Doppler Radar Wind Profiles. 6th International Symposium on Troposperic Profiling. ITR, Holleman, I.,. Neerslaganalyse uit radar- en stationswaarnemingen. KNMI Internal Report, IR--06 (in Dutch). Holleman, I.,. Doppler Radar Wind Profiles. KNMI Scientific Report WR--02. Marel, H. v d., E. Brockmann, S. de Haan, J. Dousa, J. Johansson, G. Gendt, O. Kristiansen, D. Offiler, R. Pacione, A. Rius and F. Vespe,. COST-716 Near Real-Time Demonstration Project. International Workshop on GPS Meteorology - GPS Meteorology: Ground-Based and Space-Borne Applications, Tsukuba, Januari 14-17, Japan, Marseille, G.J., A. Stoffelen and A. van Lammeren,. LITE4ADM: On the Use of LITE data for the Atmospheric Dynamics Mission Aeolus. KNMI Internal Report IR Appendices

10 Meulen, J. van der,. Present Weather - Science, Exploratory actions on automatic present weather observations. Eumetnet Report, published by KNMI, May. Roozekrans, J. and I. Holleman,. KNMI HDF5 Data Format Specification, v3.5. KNMI Internal report, IR--05. Som de Cerff, W.J., M. Petitdidier, C. Leroy, C. Boone, J. van de Vegte and J. Linford,. Results of running EO applications on EDG 2.0*. EO application testbed assessment and final report, December, EU deliverable. Som de Cerff, W.J., M. Petitdidier, C. Leroy, C. Boone, J. van de Vegte and J. Linford,. Earth observation applications testbed assessment evaluation report. Datagrid wp9 EO, March, EU deliverable. Stoffelen, A., P. Flamant, M. Håkansson, E. Källén, G.J. Marseille, J. Pailleux, H. Schyberg and M. Vaughan,. Measurement Error and Correlation Impact on the Atmospheric Dynamics Mission (MERCI). ESA project report (CD). Stoffelen, A., C-C. Lin, J. de Kloe, V. Wissmann, S. Bartha and H.-R. Schulte,. Wind Retrieval Capability of a Rotating Range-gated, Fan Beam Scatterometer in Space. Scatterometer products for weather forecasting and climate monitoring, Proceedings EUMETSAT Users Conference, Weimar, Germany, 28/9-2/10/ 03. Stoffelen, A., J. Beysens, J. Bonekamp, J. de Kloe, A. Verhoef, J. Verspeek and J. de Vries,. Scatterometer products for weather forecasting and climate monitoring. Proceedings EUMETSAT Users Conference, Weimar, Germany, 28/9-2/10/ 03. Stoffelen, A., M. Driessenaar and J. Beysens,. Implementation of Scatterometer Wind Processing at KNMI. Final Project Report, NIVR NUSP-2 / Stoffelen, A.,. Improved atmospheric wind analyses for Weather and Climate. Proceedings EGS/EGU/AGU conference plenary session, 7-11/4/ 03, Nice, France. Stoffelen, A., J. de Vries, K. Møgenson and F. Tveter,. Impact in HiRLAM of the KNMI SeaWinds 100-km product. Proceedings EGS/EGU/AGU conference, 7-11/4/ 03, Nice, France. Stoffelen, A.,. KNMI SeaWinds products. Proceedings NASA SeaWinds OVWST meeting, 13-16/1/ 03, Oxnard, Cal., USA. Templon, J., F. Harris, J.J. Blaising, L. Fusco, C. Boonne, W. Som de Cerff, V. Breton, J., Montagnat and N. Jacq,. Joint list of Usecases (WP8-9-10), Applications Working Group, September. Datagrid milestone document Templon, J., F. Harris, J.J. Blaising, L. Fusco, C. Boonne, W. Som de Cerff, V. Breton, J., Montagnat and N. Jacq,. Joint list of recommendations (WP8-9-10). Applications Working Group, May, Datagrid milestone document. Valk, J. de, E. Clothiaux, C. Naud, M. Derrien, H.LeGleau and T Smyth,. (Pre) Validation of SAF-NWC products. The EUMETSAT Meteorological Data Users Conference, Weimar, Germany, Vries J. de,. QuikSCAT Data Processor. User Manual 1.3. Vries de, J., K. Mogensen and A. Stoffelen,. NWP-SAF Visiting Scientist Report. NWPSAF_KN_TD-002. Wel, F.J.M. van der,. A GIS approach to data infrastructure in support of a user-friendly exchange of meteorological and climatological data. EGS-AGU-EUG Joint Assembly, Nice, France, April. Velde, O. van der, I. Holleman, J. van der Meulen and S. Barlag,. Gecombineerde weergave van AMDAR en METAR: De eerste stap naar Synthetische Temp. KNMI Internal Report, IR--03 (in Dutch). Beekhuis, H. and I. Holleman,. Upgrade and Evaluation of a Lightning Detection System. Vaisala - International Lightning Detection Conference. Beekhuis, H. and I. Holleman,. Upgrade and Evaluation of a Lightning Detection System. KNMI Technical Report TR-268. Benschop, H., A. Klein Tank and A. de Ruiter,. Meteorological observations at the coastal zone in the Netherlands(in dutch: Waarnemingen op land-water overgangen Nederland, WOLWO NL). KNMI Internal Report IR -01 (in Dutch). Brug, V.,. Kwaliteitsverbetering van waarnemingen, een methode toegepast voor ceilometerwaarnemingen. KNMI Internal Report IR -01 (in Dutch with summary in English). DeLobbe, L. and I. Holleman,. Quality of Echotop Products and Derived Probability of Hail as a Function of Range. ERAD Publication Series, 2, p Appendices

11 Holleman, I.,. Weerradar en de neerslag van augustus. Meteorologica, 4, december, (in Dutch). Holleman, I. and H. Beekhuis,. Weather Radar Monitoring using the Sun. KNMI Technical Report TR-272. Holleman, I.,. VPR Adjustment using a Dual CAPPI Technique. ERAD Publication Series, 2, Kloe, J. de, and A. Stoffelen,. Optimisation of Rotating, Range-Gated Fanbeam Scatterometer for Wind Retrieval. Task 3a report, FoM definition and validation, ESA/ESTEC Contract No /00/NL/DC. Roozekrans, J.,. MSG komt er eindelijk aan... Meteorologica, 1, maart, 7-12 (in Dutch). Roozekrans, J.,. Weersatellieten: een informatie lawine. Zenit, mei, (in Dutch). Saltikoff, E., U. Gjertsen, D. Michelson, I. Holleman, J. Seltmann, K. Odakivi, A. Huuskonen. H. Hohti, J. Koistinen and G. Haase,. Radar data quality issues in Northern Europe. ERAD Publication Series, 2, Seib, J. and F.J.M. van der Wel,. A Field and Status Report of the EUMETNET Programme UNIDART. 5th European Conference on Applied Climatology as part and partner of the 4th Annual Meeting of the European Meteorological Society September, Nice, France. Stoffelen, A., J. Verspeek and S. de Haan,. C-band Sea Ice Model. ENVISAT Symposium, 6-10/09/ 04 Salzburg, Austria. Stoffelen, A., A. Verhoef and J. de Kloe,. Timely ERS scatterometer winds for weather nowcasting. ENVISAT Symposium, 6-10/9/ 04 Salzburg, Austria. Stoffelen, A., G.J. Marseille and J. Barkmeijer,. Sensitivity Approach to Study Doppler Wind Lidar Sampling Requirements for Extreme Weather Prediction. Proceedings 7th Int. Winds Workshop, 14-17/6/ 04, Helsinki, Finland. Stoffelen, A., J. Bonekamp, J. Beysens, J. de Kloe, M. Portabella, A. Verhoef and J. Verspeek,. Towards a high-resolution scatterometer wind product. Proceedings 7th Int. Winds Workshop, 14-17/6/ 04, Helsinki, Finland. Valk, J. de, C. Naud, M. Derrien, H.LeGleau, T Smyth, C. Wrench and E. Slack,. MSG Validation: An ongoing process. The EUMETSAT Meteorological Data Users Conference, Prague, Czech Republic, Vries J. de, A. Stoffelen and J. Beysens,. Ambiguity Removal and Product Monitoring for Seawinds. NWPSAF_KN_TR_001. Wel, F.J.M. van der, A. Perdigao, P. Madej, M. Barszczynska and D. Kubacka,. Cost 719: Interoperability and integration issues of GIS data in climatology and meteorology. 10th EC GI & GIS Workshop, ESDI State of the Art, Warsaw, Poland, June. 99 Appendices

12 Publications Climatological Services The Climatological Services Division has the (national) responsibility for the digital and documentary preservation and archiving, including access, of all meteorological observations carried out by or under auspices of knmi. Climatological research, carried out by this division, focuses on the quality management of the archived climatological data and the development, production and dissemination of high quality and high-resolution datasets and derived climatologies and assessments. These climatologies and assessments, developed by research with a predominantly applied character, contain detailed descriptions of the climate of the Netherlands within the context of its geographical environment (Europe). They inform customers about the present and past climate and weather, including the probabilities and descriptions of extremes. Results of climatological research are available for internal and external use. Important societal stakeholders are the general public and media (general climatological information), governmental bodies, supporting policy decisions concerning safety, economy and environment and the research community. In and the Climatological Services Division had and still has - a leading role in the establishment and management of the European Climate Assessment and Dataset (eca&d). This platform of scientific collaboration and data-exchange is evaluating into and acknowledged as the European focal point for high-resolution climatic data and assessments with an emphasis on extremes and is clearly visible in international frameworks like ipcc and clivar. The Climatological Services Division collaborates strongly with the Climate Analysis Division, not only with respect to eca&d but also in the domain of the hisklim programme that aims at the preservation and reconstitution of historical instrumental observational series. Publications in reviewed journals Klein Tank, A.M.G. and G.P. Können,. Trends in indices of daily temperature and precipitation extremes in Europe, J. Climate, 16, Shabalova, M.V. and A.F.V. van Engelen,. Evaluation of a reconstruction of temperature in the Low Countries AD Climatic Change, 58, Wijngaard, J.B., A.M.G. Klein Tank and G.P. Können, Homogeneity of 20th century European daily temperature and precipitation series. Int. J. Climatology, 23, Klein Tank, A.M.G., G.P. Können and F.M. Selten,. Signals of anthropogenic influence on European warming as seen in the trend patterns of daily temperature variance. Int. J. Climatology, 25, Other reviewed publications Klein Tank, A.M.G.,. Klimaat, neerslag en verdamping (Climate, precipitation and evaporation). In:. Integraal waterbeheer met kennis van zaken, W. Cramer, J. de Jong en J.A. Los. (Eds.), Samsom H.D. Tjeenk Willink, Alphen a.d. Rijn, The Netherlands (in Dutch), B1100-3/B Appendices

13 Klein Tank, A.M.G.,. Changing Temperature and Precipitation Extremes in Europe s Climate of the 20th Century. Phd-Thesis, De Bilt, The Netherlands, 124pp. Other publications Engelen, A.F.V. van,. Widening the ECSN idea as an option for the way forward. Proceedings Clips workshop WMO-RAVI, Erfurt, Germany, published on CD-ROM. Engelen, A.F.V. van,. Climatological products as a reference for the forecaster a showcase of three ECSN projects. Proceedings European Conference on Applied Meteorlogy, Rome, Italy, published on CD-ROM. Engelen, A.F.V. van,. Dare Activities in RAVI. Proceedings WMO-CCl Expert Team meeting on Data rescue, October, MMS, Petaling Jaya, Malaysia, published on CD-ROM. Klein Tank, A.M.G. (Ed.),. The Global Climate System Review, June 1996-December World Climate Data and Monitoring Programme, WMO-No. 950, 144pp. Klein Tank, A.M.G. and R.J.F.C. Sluijter,. Nederland is verder opgewarmd (The Netherlands have been warmed up further), Chapter 1 in: De toestand van het klimaat in Nederland, KNMI Report, De Bilt, the Netherlands (in Dutch). Valk, M.R.,. UNESCO s bijdrage aan het 3e Wereld Water Form (UNESCO s contribution to the 3rd World Water Forum). H2O, 36, no 7, p 7 (in Dutch). Valk, M.R.,. Water programma s van de UNESCO en de WMO (Water programmes of UNESCO and WMO). Special water issue of VN Forum,3, (in Dutch). Verkaik, J.W., A. Smits and J. Ettema,.Wind statistics of the Netherlands including coastal zone. KNMI Report, De Bilt, the Netherlands. Hoeven, M.P.J. van der and A.M.G. Klein Tank,. New ECA&D website: Abstract 5 th European Conference on Applied Climatology, Nice, France. Jilderda, R.,. Digitising historical weather records from 19th century annuals. Published by KNMI. Abstract 5th European Conference on Applied Climatology, Nice, France. Klein Tank, A.M.G., (Ed.),. WMO Statement on the Status of the Global Climate in. World Climate Data and Monitoring Programme, WMO-No. 966, Geneva, Switzerland. 12pp. Klein Tank, A.M.G.,. Het klimaat van Europa wordt ruiger (Europe s climate getting rougher). Het Weer, 5, No. 6, (in Dutch). Smits, A., J.B. Wijngaard, R.P. Versteeg and M. Kok,. Statistiek van Extreme Neerslag in Nederland (extreme precipitation statistics). Report 26 STOWA, Utrecht, The Netherlands (in Dutch). Smits, A. and J.B. Wijngaard,. Statistics of extreme precipitation in the Netherlands. Abstract 5 th European Conference on Applied Climatology, Nice, France. Valk, M.R.,. Klimaatverandering: uitdaging of bedreiging voor het waterbeheer? (Climate change: challenge or threat for water management?). International Confererence on Water and Climate, in: H2O, 37, no 20, p 8 (in Dutch). Verkaik, J.W.,. Integration of geographical interpolation and statistical extrapolation of wind extremes in the Netherlands. Abstract Conference on Spatial Interpolation in Climatology and Meteorology and meetings of COST 719 MC/WG2, COST 725 MC/WG-s, COST 718 WG, Boedapest, Hungary. Wijngaard, J.B. and M. Kok,. Nieuwe Neerslagstatistiek voor Waterbeheerders (New precipitation statistics for water managers). Brochure 26a STOWA/KNMI, Utrecht, The Netherlands (in Dutch). 101 Appendices

14 Publications Climate Variability Research The division investigates the: 1. Dynamics of weather and climate 2. Variability of the coupled atmosphere-ocean system 3. Paleo-climate and climate change. The study of extremes in current and future climate through the use of massive ensemble methods is a new focus of the group. The expertise on the probability of extreme events and climate change is communicated to the general public. The development of weather forecasting techniques is done in collaboration with developers of weather models and with weather forecasters at knmi. In collaboration with the University of Louvain-la-Neuve, the division has developed the highly successful ecbilt-clio coupled model of intermediate complexity. Together with the Oceanographic Research Division and the physics of weather and climate group of ictp Trieste, the division now develops the speedo coupled atmosphereocean model. Publications in reviewed journals Achatz, U. and J.D. Opsteegh,. Primitive equation based low-order models with seasonal cycle. I. Model construction. J. Atmos. Sci., 60, 3, Achatz, U. and J.D. Opsteegh,. Primitive equation based low-order models with seasonal cycle. II. Application to complexity and nonlineatiry of large-scale atmosphere dynamics. J. Atmos. Sci., 60, 3, Barkmeijer, J., T. Iversen and T.N. Palmer,. Forcing singular vectors and other sensitive model perturbations. Quart. J. Roy. Meteor. Soc., 129, 591, Crommelin, D.T.,. Regime transitions and heteroclinic connections in a barotropic atmosphere. J. Atmos. Sci., 60, 2, Goosse, H., F.M. Selten, R.J. Haarsma and J.D. Opsteegh,. Large sea-ice volume anomalies simulated in a coupled climate model. Climate Dyn., 20, 5, doi: /s Haarsma, R.J., E.J. Campos and F. Molteni,. Atmospheric response to South Atlantic SST dipole. Geophys. Res., 30, 16, CLM 3-1 CLM 3-4. doi: /gl Hersbach, J.P.Th., R. Mureau, J.D. Opsteegh and J. Barkmeijer,. Developments of a targeted ensemble system. Quart. J. Roy. Meteor. Soc., 129, 591, Lacorata, G., R.A. Pasmanter and A. Vulpiani,. Markov chain description of dispersion process with long-term memory. J.Phys.Oceanogr., 33, 1, L vov, S., R.A. Pasmanter, A. Pomyalov and I. Procaccia,. Strong universality in forced and decaying turbulence in a shell model. Physical Review E, 67, Doi: /PhysRevE Pasmanter, R.A. and A. Timmermann,. Cyclic Markov chains with an application to an intermediate ENSO model. Nonlin. Proc. Geophys., 10, 3, Plassche, O. van de, G. van der Schrier, S.L. Weber, W.R. Gehrels and W. Wright,. Sea-level variability in the northwest Atlantic during the past 1500 years: A delayed response to solar forcing? Geophys. Res.Lett., 30, 18, Doi:10.129/GL Ronda, R.J., R.J. Haarsma and A.A.M. Holtslag,. Representing the atmospheric boundary layer in climate models of intermediate complexity. Climate Dyn., 21, , 3-4 doi: /s Trieling, R.R. and W.T.M. Verkleij,. Synoptic development in a two-and-one-half layer contour dynamics system. J. Atmos. Sci., 60, 7, Tuenter, E., S.L. Weber, F.J. Hilgen and L.J. Lourens,. The response of the African summer monsoon to remote and local forcing due to precession and obliquity. Glob. Plan. Change., 36, 4, Weber, S.L. and J. Oerlemans,. Holocene glacier variability: three case studies using an intermediatecomplexity climate model. Holocene, 13, 3, Appendices

15 Crommelin, D.T., J.D. Opsteegh and F. Verhulst,. A mechanism for atmospheric regime behaviour. J. Atmos. Sci., 61, Crommelin, D.T.,. Observed non-diffusive dynamics in large-scale atmospheric flow. J. Atmos. Sci., 61, Moolenaar, H. and F.M. Selten,. Finding the effective parameter perturbations in atmospheric models; the Lorenz-63 models as case study. Tellus, 56A, Schaeffer, M., F.M. Selten, H. Goosse and J.D. Opsteegh,. The influence of ocean convection patterns on high-latitude climate projections. J. Climate, 17, Schrier, G. van der, S.L. Weber, S.S. Drijfhout and J.A. Lowe,. Low-frequency sea-level variations in the Atlantic. Glob.Plan.Change, 43, Selten, F.M. and G. Branstator,. An Unstable Periodic Orbit and preferred regime transitions routes in an atmospheric model. J. Atmos. Sci., 61, Selten, F.M., G. Branstator, H. Dijkstra and M. Kliphuis,. Tropical origins for recent and future Northern Hemisphere Climate Changes. Geophys. Res. Lett., 31, L doi: /GL Verkleij, W.T.M. and T. Gerkema,. Maximum entropy profiles. J. Atmos. Sci., 61, 8, Weber, S.L., T.J. Crowley and G. van der Schrier,. Solar irradiance forcing of centennial climate variability: during the Holocene. Climate Dyn., 22, Other reviewed publications Crommelin, D.T.,. Nonlinear dynamics of atmospheric regime transitions. PhD-Thesis, January 17, University Utrecht. Tuenter, E.,. Modeling orbital induced variations in circum-mediterranean climate. PhD Thesis. ISBN: , 152 pp. Weber, S.L. and J.M. Robinson,. Daisyworld homeostasis and the earth system. In: Scientists debate Gaia the next century, S.H. Schneider, J.R. Miller, E. Crist and P.J. Boston (Eds.), MIT Press, 377 pp. Other publications Haarsma, R.J., E.J. Campos, A.R. Piola and W. Hazeleger,. Mechanisms generating the dominant modes of variability in the South Atlantic ocean: A study with a hierarchy of ocean-atmosphere models. Extended abstract for the 7th Southern Hemisphere Conference, Wellington, New Zealand. Selten, F.M.,. Circulation induced changes in the probability of extreme temperatures in an ensemble of transient climate simulations. Extended abstract. In: Proceedings of Stanstead seminar, June 16-20,, Lennonville, USA. Siegmund, P. and W.T.M. Verkleij,. Waarom zachte winters en warme lentes? In: hoofdstuk 3 van de toestand van het klimaat in Nederland, J. Verbeek (Ed.), (in Dutch). Voogt, M.H.. Synthetic Water Vapour Images from the hirlam model using a radiative transfer model. Afstudeerverslag, Universiteit Wageningen, December. Also available as KNMI Intern Report, IR Appendices

16 Publications Oceanographic Research The Oceanographic Research Division studies the: 1. Variability and predictability of the ocean and the climate system 2. Interaction of the ocean with the atmosphere, including processes such as El Nino 3. Large-scale ocean circulation. The objectives are to: 1. Improve understanding and modelling of ocean processes of relevance to climate 2. Improve climate prediction on seasonal timescales 3. Understand patterns of climate change. A programme to reduce uncertainties in estimates of future sea level rise has started in. The study of extremes is another focus of the group. The division is involved in international observational programmes through the deployment of argo floats in the ocean. Together with the Climate Variability Research Division and the physics of weather and climate group of ictp Trieste, the division develops the speedo coupled atmosphere-ocean model. The expertise of the climatology of extreme events, of climate change and sea level is communicated to relevant contacts in the government administration and to the general public. The work on seasonal forecasting has had practical applications through collaboration with ecmwf. Information on seasonal forecasting is provided to the general public and to Service Providers. The Climate Explorer tool for the analysis of climate data sets has been made available to the public. Publications in reviewed journals Aken, H.M. van, A.K. van Veldhoven, C. Veth, W.P.M. de Ruijter, P.J. van Leeuwen, S.S. Drijfhout, C.P. Whittle and M. Ronault,. Observations of a young Agulhas Ring, Astrid, during MARE, the Mixing of Agulhas Rings Experiment. Deep-Sea Res., 50, 1, Burgers, G. and G.J. van Oldenborgh,. On the impact of local wind stress feedbacks in the Central Pacific on the ENSO cycle. J. Climate, 16, 14, Caires, S., and A. Sterl,. Validation of ocean wind and wave data using triple collocation. J. Geophys. Res., 108, C3, doi: /2002jc Drijfhout, S.S.,. Why anticyclones can split. J. Phys. Oceanogr., 33, 8, Drijfhout, S.S., C.A. Katsman, L. de Steur, P.C.F. van der Vaart, P.J. van Leeuwen and C. Veth,. Modeling the initial decay processes of Agulhas Rings in an isopycnic ocean model. Deep-Sea Res. II, 50, 1, Drijfhout, S.S., P. de Vries, K. Döös and A.C. Coward,. Impact of eddy-induced transport on the Lagrang ian structure of the upper branch of the thermohaline circulation. J. Phys. Oceanogr., 33, 10, Gulev, S., V. Grigorieva, A. Sterl and D. Woolf,. Assessment of the reliability of wave observations from voluntary observing ships: Insights from the validation of a global wind wave climatology based on voluntary observing ship data. J.Geophys. Res., 108, (C7), doi: /2002JC Hazeleger, W., P. de Vries and Y. Friocourt,. Sources of the Equatorial Undercurrent in the Atlantic in a high resolution ocean model. J. Phys. Oceanogr., 33, 4, Klinger, B.A., S.S. Drijfhout, J. Marotzke and J.R. Scott,. Sensitivity of Basin-wide meridional overturning to diapycnal diffusion and remote wind forcing in an idealized Atlantic-Southern Ocean Geometry. J. Phys. Oceanogr., 33, 1, Oldenborgh, G.J. van, and A. van Ulden,. On the relationship between global warning, local warming in the Netherlands and changes in circulation in the 20th century. Int. J. Climatology, 23, Sterl, A. and W. Hazeleger,. Coupled variability and air-sea interaction in the South Atlantic Ocean. Climate Dyn., 21, 7-8, doi: /s y 104 Appendices

17 Wallbrink, H., F. Koek, G.P. Können and T. Brandsma,. Sea level pressure observations from Dutch ships incorporated in COADS release 1c climatology. Int. J. Climatology, 23, 4, Caires, S., A. Sterl, J.-R, Bidlot, N. Graham and V. Swail,. Intercomparison of different wind wave reanalyses. J. Climate, 17, 10, Brink, H.W. van den, G.P. Können, J.D. Opsteegh, G.J. van Oldenborgh and G. Burgers,. Improving 104-year surge level estimates using data of the ECMWF seasonal prediction system. Geophys. Res. Lett., 31, 17, L doi: /GL Donners, J. and S.S. Drijfhout,. The Lagrangian view of South Atlantic interocean exchange in a global ocean model compared with inverse model results. J. Phys. Oceanogr., 34, 5, doi: / *2204)034<1019:tlvosa>2.0.00;2 Donners, J., S.S. Drijfhout and A.C. Coward,. Impact of cooling on the water mass exchange of Agulhas rings in a high resolution ocean model. Geophys. Res. Lett., 31, L doi: /6l Hazeleger, W., R. Seager, M. Cane and N. Naik,. How can tropical Pacific heat transport vary? J. Phys. Oceanogr., 34, Katsman, C.A., M.A. Spall and R.S. Pickart,. Boundary current eddies and their role in the restratification of the Labrador Sea. J. Phys. Oceanogr., 34, Klinger, B.A., S.S. Drijfhout, J. Marotzke and J.R. Scott,. Remote wind-driven overturning in the absence of the Drake Passage effect. J. Phys. Oceanogr., 34, Schrier, G. van der, S.L. Weber, S.S. Drijfhout and J.A. Lowe,. Low-frequency sea-level variability in the Atlantic. Glob.Plan.Change, 43, Selten, F.M., G. Branstator, H. Dijkstra and M. Kliphuis,. Tropical origins for recent and future Northern Hemisphere Climate Change. Geophys. Res. Lett., 31, L doi: /gl Sterl, A.,. On the (in)homogeneity of reanalysis products. J. Climate, 17, Steur, L. de, P.J. van Leeuwen and S.S. Drijfhout,. Tracer leakage from Modeled Agulhas Ring. J. Phys. Oceanogr., 34, Zelle, H., G. Appeldoorn, G.J.H. Burgers and G.J. van Oldenborgh,. The relationship between sea surface temperature and themocline depth in the eastern equatorial Pacific. J. Phys. Oceanogr., 34, 3, Other reviewed publications Caires, S. and A. Sterl,. Comparative assessment of ERA-40 ocean wave product. Proceedings of the ECMWF Workshop on Re-analyis, November 5-9, 2001, Reading, United Kingdom, ERA-40 Project Report Series, 3, Caires, S. and A. Sterl,. On the estimation of return values of significant wave height data from the reanalysis of the ECMWF. Proceedings of the European Safety and Reliability Conference, Maastricht, June 16-19,, Bedford and Van Gelder (Eds.), Safety and reliability, Hazeleger, W. and P. de Vries,. Fate of the Equatorial undercurrent in the Atlantic. In: Interhemispheric water exchange in the Atlantic Ocean. G.J. Goni and P. Malanotte-Rizzoli (Eds.), Elsevier, Other publications Caires, S., Sterl, A., Bidlot, J.-R., Graham, N. and Swail, V.,. Climatological assessment of reanalysis ocean data. Proceedings of the 7th international workshop on wave hindcasting and forecasting, October 21-26, 2002, Banff, Canada, Drijfhout, S.S.. Why anticyclones can split. Bull. Amer. Meteor. Soc., 84, Appendices

18 Hazeleger, W., C. Severijns, R. Haarsma, F. Selten and A. Sterl,. SPEEDO, model description and validation of a flexible coupled model for climate studies. KNMI Technical Report TR-257. Oldenborgh, G.J. van, and A. van Ulden,. Nederlandse temperatuur volgt de wind en de opwarming van de wereld. In: hoofdstuk 2 van De toestand van het klimaat in Nederland, J. Verbeek (Ed.), (in Dutch). Oldenborgh, G.J. van,. The influence of El Niño - Southern Oscilation on West Java. Jakarta Kota Pantai, 03, 8-9. Caires, S., A. Sterl, G. Komen and V. Swail,. The web-based KNMI/ERA-40 global wave climatology atlas. WMO bulletin, 53, 2, Vera, C., W. Hazeleger, I. Wainer and J. Servain,. Climate variability in the South Atlantic Ocean. White paper in: Report Workshop on the South Atlantic Climate Observing System (SACOS), February 6-8,, Angra dos Reis, Brazil, Wallbrink, H.,. The draft logs that formed the base for the uniform abstract logs Proceedings of CLIMAR-11 conference, November 19-21,, Brussel, Belgium. Wallbrink, H.,. Een stijve koelte. Over de ontstaangeschiedenis van windmetingen. Magazine Het Weer, 5, 1, (in Dutch). 106 Appendices

19 Publications Atmospheric Research The central theme of investigation in the Atmospheric Research Division is the heat and water balance of the atmosphere. This includes the: 1. Study of energy transfer between land and atmosphere 2. Development of new techniques to retrieve relevant atmospheric parameters from satellite and surface remote sensing equipment 3. Study of atmospheric processes combining obser vations with models 4. Use and development of the Regional Atmospheric Climate Model (racmo) for climate diagnosis and climate scenarios. The research site of Cabauw plays an important role in many of the observational studies. Within the European context, this division is involved in the development of atmospheric retrieval procedures for new and emerging satellite technologies and plays a key role in national and international collaborative research programmes of the hydrological cycle. Publications in reviewed journals Aben, I., C.P. Tanzi, H.W. Hartmann, D.M. Stam and P. Stammes,. Validation of space-based polarization measurements by use of a single-scattering approximation, with application to GOME. Appl. Opt., 42, Bosveld, F.C. and W. Bouten,. Evaluating a model of evaporation and transpiration with observations in a partially wet Douglas-fir forest. Bound.-Layer Meteor., 108, 3, Bowling, L.C., D.P. Lettenmaier, B. Nijssen, L.P. Graham, D.B. Clark, M. El Maayar, R. Essery, S. Goers, Y.M. Gusev, F. Habets, B.J.J.M. van den Hurk, J. Jin, D. Kahan, D. Lohmann, X. Ma, S. Mahanama, D. Mocko, O. Nasonova, G.-Y. Niu, P. Samuelsson, A.B. Shmakin, K. Takata, D. Verseghy, P. Viterbo, Y. Xia, Y. Xue and Z.-L. Yang,. Simulation of high latitude hydrological processes in the Torne-Kalix basin: PILPS Phase 2E. 1: Experiment description and summary intercomparisons. Glob. Plan. Change, 38, Dijk, A. van, W. Kohsiek and H.A.R. de Bruin,. Oxygen Sensitivity of Krypton and Lyman-α Hygrometers. J. Atmos. Oceanic. Technol., 20, 1, Donovan, D.P.,. Ice-cloud effective particle size parameterization based on combined lidar, radar reflectivity, and mean Doppler velocity measurements. J. Geophys. Res., 108, D18, doi: /2002JD Gustafsson, D., E. Lewan, B.J.J.M. van den Hurk, P. Viterbo, A. Grelle, A. Lindroth, E. Cienciala, M. Mölder, S. Halldin and L.-C. Lundin,. Boreal-forest surface parameterisation in the ECMWF model -1D test with Nopex longterm data. J. Appl. Meteor., 42, 1, Hurk, B.J.J.M. van den, and P. Viterbo,. The Torne-Kalix PILPS2E experiment as a test bed for modifications to the ECMWF land surface scheme. Glob. Plan. Change, 38, Hurk, B.J.J.M. van den, P. Viterbo and S. Los,. Impact of Leaf Area Index seasonality on the annual land surface evaporation in a global circulation model. J. Geophys. Res., 108, D6, doi: /2002JD Jakob, C. and A.P. Siebesma,. A new subcloud model for mass-flux convection schemes: Influence on triggering, updraught properties and model climate. Mon. Wea. Rev., 131, Jia, L., Z. Su, B.J.J.M. van den Hurk, M. Menenti, A. Moene, H.A.R. de Bruin, J.J.B. Yrisarry, M. Ibanez and A. Cuesta,. Estimation of sensible heat flux using the Surface Energy Balance System (SEBS) and ATSR measurements. Phys. Chem. Earth 28, Koelemeijer, R.B.A., J.F. de Haan and P. Stammes,. A database of spectral surface reflectivity in the range nm derived from 5.5 years of GOME observation. J. Geophys. Res. 108, D2, doi: /2002JD Appendices

20 Neggers, R.A.J., H.J.J. Jonker and A.P. Siebesma,. Size statistics of cumulus cloud populations in largeeddy simulations. J. Atmos. Sci. 60, 8, Nijssen, B., L.C. Bowling, D.P. Lettenmaier, D.B. Clark, M. El Maayar, R. Essery, S. Goers, Y.M. Gusev, F. Habets, B.J.J.M. van den Hurk, J. Jin, D. Kahan, D. Lohmann, X. Ma, S. Mahanama, D. Mocko, O. Nasonova, G.-Y. Niu, P. Samuelsson, A.B. Shmakin, K. Takata, D. Verseghy, P. Viterbo, Y. Xia, Y. Xue and Z.-L. Yang,. Simulation of high latitude hydrological processes in the Torne-Kalix basin: PILPS Phase 2E; 2: Comparison of model results with observations. Glob. Plan. Change, 38, Oldenborgh, G.J. van, and A.P. van Ulden,. On the relationship between global warming, local warming in the Netherlands and changes in circulation in the 20th century. Int. J. Climatol., 23, Siebesma, A.P., C.S. Bretherton, A.R. Brown, A. Chlond, J. Cuxart, P.G. Duynkerke, H. Jiang, M. Khairoutdinov, D.C. Lewellen, C.-H. Moeng, E. Sanchez, B. Stevens and D.E. Stevens,. A Large-eddy simulation intercomparison study of shallow cumulus convection. J. Atmos. Sci., 60, 10, Schutgens, N.A.J. and P. Stammes,. A novel approach to the polarisation correction of space-borne spectrometers. J. Geophys. Res., 108, D7, doi: /2002JD Tourpali, K., C.J.E. Schuurmans, R. van Dorland, B. Steil and C. Bruehl,. Stratospheric and tropospheric response to enhanced solar UV radiation: A model study. Geophys. Res. Lett., 30, 5, doi: /2002GL Acarreta, J.R., J.F. De Haan and P. Stammes,. Cloud pressure retrieval using the O2-O2 absorption band at 477 nm. J. Ge0phys. Res., 109, D doi: /JD Acarreta, J.R., P. Stammes and W.H. Knap,. First retrieval of cloud phase from SCIAMACHY spectra around 1.6 micron. Atmos. Res., 72, Boone, A., F. Habets, J. Noilhan, D. Clark, P. Dirmeyer, S. Fox, Y. Gusev, I. Haddeland, R. Koster, D. Lohmann, S. Mahanama, K. Mitchell, O. Sasonova, G.-J. Niu, A. Pitman, J. Polcher, A.B. Shmakin, K. Tanaka, B.J.J.M. van den Hurk, S. Verant, D. Verseghy and P. Viterbo,. The Rhone-aggregation Land Surface Scheme Intercomparison Project: an overview. J. Climate, 17, Crewell, S., C. Simmer, U. Löhnert, V. Venema, A. Feijt, E. van Meijgaard, A. van Lammeren, H. Bloemink, D. Jolivet, M. Wendisch, S. Schmidt, M. Schröder, U. Willén, M. Quante, J. Meywerk, O. A. Krasnov, Th. Trautmann, S. Gimeno García, K. Pfeilsticker and Th. Scholl,. The BALTEX Bridge Campaign: An integrated approach for a better understanding of clouds. Bull. Amer. Meteor. Soc., 85(10), doi: /BAMS Donovan, D.P., M. Quante, I. Schlimme and A. Macke,. Use of equivalent spheres to model the relation between radar reflectivity and optical extinction of ice cloud particles. Appl. Opts., 43, Duynkerke, P.G. et al.,. Observations and numerical simulations of the diurnal cycle of the EUROCS stratocumulus case. Quart. J. Roy. Meteor. Soc., 130, Feijt, A.J., D. Jolivet, R. Koelemeijer, R. Dlhopolsky and H. Deneke,. Recent improvements to LWP retrievals from AVHRR. Atmos.Res., 72, Fournier N., A.J. Dore, M. Vieno, K.J. Weston, U. Dragosits and M.A. Sutton,. Modelling the deposition of atmospheric oxidised nitrogen and sulphur to the United Kingdom using a multi-layer long-range transport model. Atmos. Environ., 38, 5, doi: /j.atmosenv Haan de, S., S. Barlag, H. Klein Baltink, F. Debie and H. van der Marel,. Synergetic use of GPS Water Vapour and Meteosat Images for Synoptic Weather Forecasting. J. Appl. Meteor., 43, Henzing, J.S., P. Stammes, W.H. Knap, H.M. ten Brink, G.P.A. Kos, D. P.J. Swart, A. Apituley and J.B. Bergwerff,. The effect of aerosols on the downward shortwave irradiances at the surface - measurements versus calculations with MODTRAN4. J. Geophys. Res., 109, D doi: /jd Kokhanovsky, A.A., V.V. Rozanov, W. von Hoyningen-Huene, H. Bovensmann, J.P. Burrows and H. Klein Baltink,. The determination of a cloud altitude using SCIAMACHY on board ENVISAT. IEEE Trans. Geosci. Remote Sensing, 1, N3, Lenderink G., A.P. Siebesma, S. Cheineit, S. Irons, C. Jones, P. Marquet, F. Muller, D. Olmeda, E. Sanchez and P. Soares,. The diurnal cycle over land: A single column model intercomparison study. Quart. J. Roy. Meteor. Soc., 130, Lenderink G. and A.P. Siebesma,. On the role of drizzle in stratocumulus clouds. Quart. J. Roy. Meteor. Soc., 130, Appendices