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Earth Observation from Satellites

Earth Observation from Satellites. GEOF 334 MICROWAVE REMOTE SENSING. A brief introduction. Oceanography from Space is GLOBAL with REPEAT VISIT near SIMULTANEOUS and provide data in NEAR REAL TIME

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Earth Observation from Satellites

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  1. Earth Observation from Satellites GEOF 334 MICROWAVE REMOTE SENSING A brief introduction

  2. Oceanography from Space is GLOBAL with REPEAT VISIT near SIMULTANEOUS and provide data in NEAR REAL TIME Oceanography from space is vital for the monitoring and understanding of the ocean and its fundamental role in the integrated Earth system, both w.r.t. the ENVIRONMENT, CLIMATE CHANGE, HAZARDS & EXTREME EVENTS and SECURITY.

  3. EARTH OBSERVING SATELLITES

  4. Animations- Launch (actual) - Launch sequence (simulation) - Polar Orbiting satellite (simulation)

  5. Satellite Observations • Provide long time series • Strengthen process understanding • Vital for ocean model validation, • for assimilation and for • Operational Oceanography • Provide good atmospheric forcing fields for ocean models • Are often optimal when properly combined with in-situ data

  6. f (frequency) = C (em speed)/ L (wavelength) Overview of satellite sensor classes Optical Sensors Radars & Passive Radiometer The Electromagnetic Spectrum

  7. Overview of satellites and sensor classes

  8. 26 m x 10 m x 5 m

  9. Oceanography from Space is GLOBAL with REPEAT VISIT near SIMULTANEOUS and provide data in NEAR REAL TIME Oceanography from space is vital for the monitoring and understanding of the ocean and its fundamental role in the integrated Earth system, both w.r.t. the ENVIRONMENT, CLIMATE CHANGE, HAZARDS & EXTREME EVENTS and SECURITY.

  10. Global Climate Observing System - Essential Climate Variables

  11. OCEAN SURFACE QUANTITIES MEASURED FROM SPACE? SEA ICE WAVES SEA ICE THICKNESS CHLOROPHYLL GEOID & MDT SURFACE SALINITY SURFACE CURRENT NEAR SURFACE WIND SURFACE TEMPERATURE SEA LEVEL ICEBERG

  12. Global Observations - Chlorophyll

  13. Global Observations – Geostrophic Current

  14. Global Sea Level Change

  15. SPATIAL TRENDS

  16. LOCAL EFFECT

  17. Undestanding the MSL variations • Use of GRACE • Use of in-situ and in particular of ARGO network T/P, Jason-1 : Total sea level variation +3,3 mm/an GRACE : ocean mass variation +1,3 mm/an  Jason-1 minus GRACE  : steric variation +1,9 mm/an in situ (ARGO) : 0-700m steric contribution Problem of instrumental correction? from Lombard et al., EPSL, en presse, 2007

  18. Regular Repeat Observations

  19. Demonstration Sea Ice Monitoring http://www.arctic-roos.org

  20. Monthly Deviations of Sea Ice Area in the Arctic from merged SMMR and SSMI Data http://www.arctic-roos.org

  21. Monitoring sot (aerosols)

  22. Mesoscale Processes

  23. Prestige Oil Spill 2002

  24. OIL POLLUTION: A Treath to the Environment

  25. Variables, data sources, availability

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