Montzka SMOS Validation IGARSS 2011.ppt

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  • Wireless soil moisture sensor network (SoilNet) in a forest stand with 150 nodes (ca. 900 sensors) Installation is ongoing also for a grassland stand with 150 nodes
  • Campaign data from 27th May 2008 Simultaneous flight of PLMR and E-SAR Campaign ongoing now and at the end of May with PLMR2 and F-SAR PLMR2 is owned by the Agrosphere Institute
  • Montzka SMOS Validation IGARSS 2011.ppt

    1. 1. Carsten Montzka 1 , Heye Bogena 1 , Lutz Weihermueller 1 , Francois Jonard 1 , Marin Dimitrov 1 , Catherine Bouzinac 2 , Juha Kainulainen 3 , Jan E. Balling 4 , Jan Vanderborght 1 and Harry Vereecken 1 (1)Research Centre Jülich, Agrosphere Institute (ICG 4), Leo-Brandt-Strasse, 52425 Jülich, GERMANY (2)European Space Agency, ESTEC, Noordwijk, THE NETHERLANDS (3)Helsinki University of Technology, Department of Radio Science and Engineering, Espoo, FINLAND (4)Technical University of Denmark, DTU Space, Microwaves and Remote Sensing, DENMARK Radiobrightness validation on different spatial scales during the SMOS Validation Campaign 2010 in the Rur catchment, Germany
    2. 3. TERENO test sites Agricultural test site „ Selhausen“ Forest test site “ Wüstebach” Grassland test site „ Rollesbroich“
    3. 4. MEASUREMENTS
    4. 5. Instrumentation of the test site Wüstebach
    5. 6. Campaigns Date DoY SMOS HUT-2D/EMIRAD JÜLBARA 11.5.2010 131 7:11 6:28-6:33 5:09-8:21 14.5.2010 134 6:54 6:31-8:06 5:09-7:42 22.6.2010 173 6:36 6:57-8:38 5:16-7:55 24.6.2010 175 6:58 6:30-8:15 5:10-7:31 27.6.2010 178 6:42 6:40-8:17 -
    6. 7. Mobile ground-based L-band radiometer JÜLBARA
    7. 8. Airborne measurements with the Short Skyvan of Aalto University Helsinki
    8. 9. EMIRAD Radiometer <ul><li>Technical University of </li></ul><ul><li>Denmark </li></ul>
    9. 10. HUT-2D Radiometer <ul><li>Aalto University Helsinki </li></ul>
    10. 11. Airborne Radiometer data
    11. 12. RADIATIVE TRANSFER PARAMETER ESTIMATION
    12. 13. Radiative transfer via modified L-MEB model Modelled soil moisture Modelled brightness temperature <ul><li>L-MEB input: </li></ul><ul><li>Vegetation optical depth </li></ul><ul><li>Surface roughness </li></ul><ul><li>Soil surface temperature </li></ul><ul><li>Canopy temperature </li></ul><ul><li>… </li></ul>
    13. 14. Radiative transfer via modified L-MEB model Modelled soil moisture Modelled brightness temperature Airborne brightness temperature
    14. 15. Data assimilation framework Sequential Importance Resampling Particle Filter Tb measurements Calibrated top soil moisture/temperature model results L-MEB 1000 L-MEB realizations (particles) with perturbed vegetation opacity and soil surface roughness
    15. 16. More information on the data assimilation approach…
    16. 17. REFERENCE VALIDATION
    17. 18. Soil Moisture Reference Validation
    18. 19. Soil Moisture Reference Validation
    19. 20. Tb reference time series
    20. 21. SM (top) and Tbmean (bottom) reference
    21. 22. Radiative transfer parameter evolution
    22. 23. SMOS Validation RMSE [K] over the campaign period
    23. 24. SMOS Validation
    24. 25. Outlook: SMAP Validation and A/P Fusion Analysis <ul><li>Polarimetric L-band Multibeam Radiometer (PLMR2) </li></ul><ul><li>Frequency band:1401 – 1425 MHz </li></ul><ul><li>Polarisation: Dual linear (V and H) </li></ul><ul><li>Incidence angles: +/- 8°, +/-22°, +/- 38° @ pushbroom </li></ul><ul><li>Synthetic Aperture Radar (SAR) system onboard a DLR Dornier DO 228 aircraft </li></ul><ul><li>The sensor is able to operate in 4 frequency bands (X, C, L and P) </li></ul><ul><li>single (E-SAR) and dual (F-SAR) channel operation </li></ul>PLMR/PLMR2 DLR E-/F-SAR
    25. 26. EMIRAD PLMR HUT-2D E-SAR Thanks for your attention!

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