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Remote Sensing Technique on food production and land use change

Remote Sensing Technique on food production and land use change. 金沢工業大学 環境・建築学部 環境土木工学科 教授　徳永光晴 mtoku@neptune.kanazawa-it.ac.jp. Mitsuharu Tokunaga Civil and Environmental Engineering Kanazawa Institute of Technology. Fundamental of Remote Sensing. Spectral reflectance.

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Remote Sensing Technique on food production and land use change

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  1. Remote Sensing Techniqueon food production and land use change 金沢工業大学 環境・建築学部 環境土木工学科 教授　徳永光晴 mtoku@neptune.kanazawa-it.ac.jp Mitsuharu Tokunaga Civil and Environmental Engineering Kanazawa Institute of Technology

  2. Fundamental of Remote Sensing Spectral reflectance clear river water turbid river water vegetation 80 silty clay soil musky soil 60 40 20 0 0.4 2.4 0.8 2.0 1.2 1.6 wavelength (m) Measured Value Reflection, Absorption and Emission of electro-magnetic wave on ground surface Platform Satellite: wide area / repeat observation / over cloud Low resolution, frequently resolution for the earth environmental observations. High and moderate resolution, pointing observ. for region Mid-range platform: come up with platform / narrow area / under cloud platform sensor the sun atmosphere reflection emission object

  3. Observed Physical attribute and Applications 60 birch 50 40 pine 30 percent reflectance 20 fir 10 0 0.9 0.5 0.6 0.7 0.8 0.4 wavelength (m) Based on RS raw data Classify Land cover Compare Land use change RS data Model NDVI -> Protein -> Harvest time Physical attribute Temperature Soil Moisture others Irrigation, Elevation & GIS-> Suitable land use

  4. Platform (ground resolution, observation opportunity) Spaceborne Remote Sensing (Satellite) GeoEye, commercial satellite PA 0.41m MS 1.64m 11 recurrence days, 2-3 days on skew pointing ALOS Japanese governmental satellite PA 2.5m MS 10m 46 recurrence days, 2 days on skew pointing Airborne Remote Sensing (airplane, helicopter and autonomous radio control heli ) depend on sensor and flying height, mm – cm order observation on demand Growth of vegetations auto flying using IMU and GPS

  5. Required specification on food and land use Remote Sensing is a useful tool to monitor land use and land change on ground surface under limitation of parameters. RS data should be taken by area size, resolution, physical value, density. New satellites and sensors are coming up. mid-range platform is also. What specification is required on food production and land use? Parameters Spacial Information:Ground Resolution, Positioning accuracy, Observation area, Stereoscopy Frequency of observation:Band width, band numbers Spectral characteristics:pointing, multiple satellite operation Current Can Soil Moisture is measured? Yes under study, 0-0.6g/cm3, RMS0.043g/cm3, 10Km resolution Can RS detect polluted land? depend on situations

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