Presentation on theme: "„OUT-DOOR” INTERPRETATION OF SATELLITE IMAGES Biró, Marianna, Molnár, Zsolt, Horváth, Ferenc and Révész, András Institute of Ecology and Botany Vácrátót."— Presentation transcript:
„OUT-DOOR” INTERPRETATION OF SATELLITE IMAGES Biró, Marianna, Molnár, Zsolt, Horváth, Ferenc and Révész, András Institute of Ecology and Botany Vácrátót
Alkali steppe landscape (20 000 hectares) Cloudy April image with wetlands Reconstructed wetland network Borsodi-Mezőség
„Out-door” interpretation of satellite images Iteration of field observation and interpretation 50-100 times a day for e.g. 20 field days. 1. What is the vegetation of certain areas? 2. What is their pattern in the landscape? 3. How the surrounding landscape looks like?
The Hortobágy alkali steppe Covered with semi-natural vegetation Grasslands + wetlands + woodlands Alkali and non-alkali grasslands Primary and secondary grasslands Alkali meadows and marshes Wet meadows and drying-out meadows Drying-out meadows with Agropyron Alkali mud with/without Camphorosma
„Out-door” interpretation of satellite images Adventages 1. Quick iteration 2. Locally validated, detailed „legend” 3. Always has some historical aspect Disadventages 1. Need of remote sensing experts 2. Technology is at home 3. Quality of waterproof prints 4. Satellites see „chlorofil+water+ soil”, not species/vegetation types
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