Agrometeorology

1. Department Agrometeorology Use of weather data at farm level Deutscher Wetterdienst Wolfgang Janssen Kaiserleistr. 29 D 63067 Offenbach Tel.: 0049 69 8062 4407 Fax: 0049 69 8062 4482 mail: wolfgang.janssen@dwd.de Agrometeorology Nov 2004

2. Department Agrometeorology find content of advisory typical weather conditions is often changing small time windows for working steps precipitation all over the year farmers benefit take crop with high profit and small risk only working when necessary find optimal time for working next days saisonal climate saisonal measured data forecast data Agrometeorology Nov 2004

3. focus of agrometeorological advices Department Agrometeorology • most common crops like cereals, grassland, grain, sugar beet, potatoes, some fruits and vegetables • give planning help for the next days (fertilizing, sowing, spraying, irrigation, harvesting) • describe dependences from weather on crops in physical models Agrometeorology Nov 2004

4. Department Agrometeorology Branch offices and their responsibilities • central office in Offenbach • internal data supply • overregional data and product supply • internet • central research station in Braunschweig • validation of advisory programs • developing new advisory programs • program tools for decentral advisory • decentral advisory locations • steering program tools for advisory • generating regional forecasts und products • provide regional products Agrometeorology Nov 2004

5. Department Agrometeorology Working steps generate from data of synoptic weather stations and forecasts a complete hourly data set for: temperature, dew point, wind velocity, global radiation, precipitation, cloud cover complete time series from 1961 to +168 hours forecast • central • collecting all data • quality check • complete data set • transfer data • running some models • generate some products • provide products • decentral • store data set • running selected models • text advices and forecasts • generate products • provide products informations • ftp • internet • e-mail • telefax products products products provider informations informations Customer farmers government universities companies newspapers magazines plant protection service Agrometeorology Nov 2004

6. Products Department Agrometeorology • Telephone announcement service • common weather forecasts (2 nd - 7 nd day) • agrometeorological advices • 28 regions strengths: • accessible for all • cheap weaknesses: • only text • small regionalisation • limited information Agrometeorology Nov 2004

7. Department Agrometeorology • weather fax (also fax for vine, angler) • common weather forecast (2 nd - 7 nd day) • table with characteristic weather and • agrometeorological values for every day • special agrometeorological advices • 74 regions strengths: • cooperation with farmers association • a lot of seasonal information • high regionalisation • paper form weaknesses: • need falefax • abo for one year Agrometeorology Nov 2004

8. Department Agrometeorology Internet www.agrowetter.de information for agriculture free of charge: warnings reports maps, charts and data on payment: forecastadvisory tool phenological situation online irrigation tool reports www.agrarmet.de our research activities agrometeorological models agroclimatology strengths: • high actualisation rate • high regionalisation • can use graphics, tables, text, colours • more detailed information • low costs weakness: • customers need computer • need more resources and knowhow Agrometeorology Nov 2004

9. Department Agrometeorology Example for agrometeorological information without charge soil moisture Agrometeorology Nov 2004

10. Department Agrometeorology Examples for products on payment Registration customer can select one or more stations out of map, put his personal information in a formular, print and send it to us via mail or telefax he gets username and password Agrometeorology Nov 2004

11. Department Agrometeorology advisory forecast tool „agrowetterPrognose“ Agrometeorology Nov 2004

12. Department Agrometeorology online irrigation service 30 different vegetables and fruits define condition on field online computations settings are stored Agrometeorology Nov 2004

13. Department Agrometeorology plant useable water Irrigation recommandation infiltration real evapotranspiration irrigated water precipitation water-balance during vegetation period Agrometeorology Nov 2004