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An Introduction to NASA’s Earth Observing System (EOS), Terra, and the MODIS Instrument

An Introduction to NASA’s Earth Observing System (EOS), Terra, and the MODIS Instrument. Michele Thornton michele@ntsg.umt.edu 406-243-6263 http://eostc.umt.edu/forestry. Primary Research. MODIS Science Compute Facility. MODIS Land Science Team Member. EOS Training Center.

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An Introduction to NASA’s Earth Observing System (EOS), Terra, and the MODIS Instrument

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  1. An Introduction to NASA’s Earth Observing System (EOS), Terra, and the MODIS Instrument Michele Thornton michele@ntsg.umt.edu 406-243-6263 http://eostc.umt.edu/forestry

  2. Primary Research MODIS Science Compute Facility MODIS Land Science Team Member EOS Training Center The University of Montana School of Forestry

  3. Goals Training and support in the acquisition, translation, and interpretation of EOS data. Supporting applications of EOS data for natural resource management.

  4. Strategic Enterprises Earth Science Enterprise (ESE) Aero-Space Technology Human Exploration & Space Development Space Sciences EOS Other Satellite Programs Research

  5. Primary GOAL: Long-term monitoring of the Earth’s biosphere NASA’s EOS Program

  6. NASA’s EOS Program Components for a Comprehensive Mission: • A Space Component • A Data Component • A Science Component

  7. Terra Quicksat Landsat 7 ACRIMST NMP/EO-1 METEOR 3M-1 Jason-1 ENVISAT Series ADEOS II ESSP/VCL Aqua (EOS PM) ESSP/GRACE ICESat ALOS SORCE EOS CHEM Space Station-SAGE III ESSP/PICASSO-CENA ESSP/CloudSat METOP Series ATMOS Series EOS Space Component EOS Era - Remote Sensing Satellites

  8. SOLAR RADIATION ATMOSPHERE LAND Cloud Type The Alps Emitted Long Wave Radiation OCEAN CRYOSPHERE Sea Surface Temperature Ice Extent EOS Science Component A global data-base of remote sensing measurements

  9. EOS Data Component DAAC = Distributed Active Archive Centers

  10. The EOS Program is Highlighted by the Terra Satellite • First True Earth System Satellite • Designed specifically to acquire • measurements of the atmosphere, • oceans, and land Space Component The Terra Spacecraft - 5 instruments Science Component MODIS Land Team MODIS Ocean Team MODIS Atmosphere Team Data Component Data Distribution Centers December 18, 1999

  11. The Terra Satellite Terra Carries 5 Separate Instruments

  12. The MODIS Instrument Moderate Resolution Imaging Spectroradiometer - Atmosphere, land, and ocean viewing in a single instrument - Daily global coverage - 2330 km swath - Designed to monitor vegetation - 36 channels - 2 @ 250m pixels, 5 @ 500m, 29 @ 1km - Custom tailored spectral bands from 0.4 to 14.0 m - Enhanced atmospheric correction - On-board calibration - Improved geo-referencing

  13. MODIS Application Products • One of the greatest advantages to the end user are the MODIS • Application Products that are available • World Wide • Nominal Cost

  14. MODIS Land Products Radiation Budget Variables Surface Reflectance/Atmospheric Correction Land Surface Temperature (LST) and Emissivity Snow and Ice Cover Bi-directional Reflection (BRDF) and Albedo Land Cover Characteristics Fire and Thermal Anomalies Land Cover Vegetation Cover Conversion At-Launch Land Cover (derived from AVHRR) Ecosystem Variables Vegetation Indices Leaf Area Index (LAI) and Fraction Photosynthetically Active Radiation (FPAR) Vegetation Production, Net Primary Productivity (NPP) Evapotranspiration and Surface Resistance

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