EXPERT MEETING ON WEATHER, CLIMATE AND FARMERS November 2004, Geneva, Switzerland ZOLTÁN DUNKEL OMSZ -Hungarian Meteorological Service H-1525 Budapest POB 38, Possibilities of using satellite information in agrometeorology; advantages and limitations

EXPERT MEETING ON WEATHER, CLIMATE AND FARMERS WMO/COST November 2004, Geneva, Switzerland AGROMETEOROLOGY MICROCLIMATE plant stand-canopy relief-configuration of terrain METEOROLOGICAL HAZARDS forest fire drought pests and diseases CROP PRODUCTION BIOMASS AND YIELD ESTIMATION plant-soil-weather model production model

The possible us of remote sensing technique parametrisation and validation of agrometeorological models yield estimation fluxes: radiation, sensible and latent heat evapotranspiration climate change detection climate impact investigation phenological observation EXPERT MEETING ON WEATHER, CLIMATE AND FARMERS WMO/COST November 2004, Geneva, Switzerland

Limitation: no or partly covering image cloud cover no on time information low frequency resolution the size of object too small

EXPERT MEETING ON WEATHER, CLIMATE AND FARMERS WMO/COST November 2004, Geneva, Switzerland MARS Mission Ensure Internal European Commission technical competence in the field of administration and control of area based aid declarations and rural zones (MARS-PAC project ) Independent and timely production estimates for the major European crops (MARS-STAT project ) Adequate warnings on food security for world-wide regions at risk (MARS food-Aid project )

Application of MSG Simulated values of the Thermal Flux (outgoing long wave radiation), emitted Thermal Flux in W/m 2 units EXPERT MEETING ON WEATHER, CLIMATE AND FARMERS WMO/COST November 2004, Geneva, Switzerland

Sea surface temperature obtained from METEOSAT data

Evapotranspiration data obtained from METEOSAT data EXPERT MEETING ON WEATHER, CLIMATE AND FARMERS WMO/COST November 2004, Geneva, Switzerland

Radiation map for Hungary, METEOSAT A. Rimóczy-Paál, J. Kerény

EXPERT MEETING ON WEATHER, CLIMATE AND FARMERS WMO/COST November 2004, Geneva, Switzerland Vegetation index map for Hungary A. Rimóczy-Paál, J. Kerény

EXPERT MEETING ON WEATHER, CLIMATE AND FARMERS WMO/COST November 2004, Geneva, Switzerland Yield estimation trial, using statistical methods A. Rimóczy-Paál

EXPERT MEETING ON WEATHER, CLIMATE AND FARMERS WMO/COST November 2004, Geneva, Switzerland NDVI map using NOAA/AVHRR images after atmospheric correction

Yield estimation, wheat, differences per counties EXPERT MEETING ON WEATHER, CLIMATE AND FARMERS WMO/COST November 2004, Geneva, Switzerland

Daily evapotranspiration calculation scheme ET = R n + A + B·(T A – T C ) EXPERT MEETING ON WEATHER, CLIMATE AND FARMERS WMO/COST November 2004, Geneva, Switzerland

We need a ground-truth -continuous reference station -expeditions

Surface temperature values along the scanning route EXPERT MEETING ON WEATHER, CLIMATE AND FARMERS WMO/COST November 2004, Geneva, Switzerland

LST, NDVI, ET 01 July 1998 LST: K NDVI:0,1 - 0,7 ET: 5,5 - 7,9 mm/day

Comparison of the measured, calculated, and satellite born daily ET values EXPERT MEETING ON WEATHER, CLIMATE AND FARMERS WMO/COST November 2004, Geneva, Switzerland

Pan AAntalSatelliteA-AntalA-Satellite mm/daymm/daymm/day%% ,75,78, ,16,17, ,13,84, ,38,27, ,212,912, ,21,21, ,46,58, ,36,57, ,67,78, ,15,16, ,95,98, ,17,18, ,28,19, ,86,98, ,17,88,

EXPERT MEETING ON WEATHER, CLIMATE AND FARMERS WMO/COST November 2004, Geneva, Switzerland Limitations: - real time data access, no problem - frequency, no problem, MSG very frequent, every 1/4 hour - resolution, yes, sometimes too rough and what about the phenological observation? CONCLUDING:

EXPERT MEETING ON WEATHER, CLIMATE AND FARMERS WMO/COST November 2004, Geneva, Switzerland Many thanks for your attention!