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Royal Netherlands Meteorological Institute Ministry of Infrastructure and the Environment 3D Exploration of Weather Data in Combination with IASI L2 Products for Better Understanding of Potential Applications Michal Koutek , S. de Haan, I.

  1. Royal Netherlands Meteorological Institute Ministry of Infrastructure and the Environment 3D Exploration of Weather Data in Combination with IASI L2 Products for Better Understanding of Potential Applications Michal Koutek , S. de Haan, I. van der Neut, F. Debie, P. de Valk (KNMI), S. Tjemkes (EUMETSAT) Email: koutek@knmi.nl Date: 25-09-2014

  2. Preliminary Visualization study for the MTG – IRS project • Earth • Interferogram MTG-IRS objectives: • • To support regional NWP in Europe, • time • L0 through detailed 3D fields of temperature, humidity, and wind • Detection • • • element at high vertical, horizontal and temporal • L1 processing resolution • To support now-casting and very-short range • Dwell forecasting • L0 • L1 Obviously, a lot of effort is put into development • wave • number of L2 algorithms and products. • Spectral sounding 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  3. IASI as proxy for IRS IASI: Polar-Orbiting Hyper-Spectral Sounder 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  4. Input data for our visualization study: MTG-IRS L2 Proxy (IASI) Data EUMETSAT provided us with: • Point-profiles at ECMWF levels with prior fields (ECMWF) and retrieved fields (IASI L2): • Temperature, specific humidity, and relative humidity • Quality control indicators We have computed derived fields such as Theta-W. Besides pressure information we need geometric height for 3D grid. Note on retrieval algorithm: EUMETSAT implemented the UWPHYSRET algorithm as the IRS Level 2 Development and Validation Processor (IRS-L2DVP). 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  5. Statistics: Important step in understanding • Statistical methods such bias and standard deviation provide a global overview of the numerical quality of the retrievals. • What can be the next step beyond statistics and numerical analysis? bias std. deviation bias std. deviation [KNMI: Siebren de Haan, Gert-Jan Marseille, Paul de Valk] 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  6. Next Step: Visualization and Exploration Our approach: Apply a well-established concept of interactive 3D visualization • of meteorological data that uses Virtual Reality. => Weather 3D Explorer application [KNMI] Provide meteorological context to the IASI retrieval data with actual satellite and • RADAR images, and NWP models such as ECMWF and HARMONIE. Let the forecasters and the scientists interactively explore the weather situation • and study the 3D profile data. 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  7. Selection of weather cases 2012.06.20 2012.07.10 Which MetOpA/B swath to take for a detailed exploration ? 2013.06.20 2013.06.21 2013.06.20 09:00 utc 2013.06.20 10:00 utc 2013.06.20 11:00 utc 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  8. Selection of weather cases Valid retrieval points and cloude-free areas.. 2012.06.21 09:00 utc 2012.06.21 11:00 utc 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  9. Putting the pieces together .. 2012.06.21 20:00 utc 2012.06.21 20:00 utc 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  10. Iso-contours of CLOUDS (HARMONIE model) 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  11. Iso-contours of RAIN intensity (HARMONIE model) 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  12. Cross-section Theta-W (IASI L2) Cross-section Theta-W (HARM) Cross-section Theta-W (IASI L2) 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  13. Method: Bring the 3D point-profile data into 3D grid. 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  14. Method: Bring the 3D point-profile data into 3D grid. 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  15. Method: Bring the 3D point-profile data into 3D grid. Specific humidity L2VDP (IASI) 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  16. Visualize the gridded profile data in 3D Specific humidity L2VDP (IASI) NOTE: SPARSE DATASET 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  17. Visualize the gridded profile data in 3D Specific humidity L2VDP (IASI) NOTE: IT IS A SPARSE DATASET 3D cross-sections, color-mapping • 3D iso-surfaces • 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  18. For context provide satellite images, ECMWF model clouds 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  19. Exploring retrieved fields: Temperature Temperature IASI 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  20. Exploring retrieved fields: Temperature Temperature ECMWF 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  21. Exploring retrieved fields: Temperature Temperature DIFF = IASI - ECMWF 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  22. Exploring retrieved temperature and model temperature ECMWF ECMWF IASI IASI 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  23. Exploring retrieved fields: Relative humidity Rel. humidity IASI 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  24. Exploring retrieved fields: Relative humidity Rel. humidity ECMWF 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  25. Exploring retrieved fields: Relative humidity Rel. humidity DIFF = IASI - ECMWF 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  26. Exploring retrieved fields: Specific humidity Spec. humidity IASI 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  27. Exploring retrieved fields: Specific humidity Spec. humidity ECMWF 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  28. Exploring retrieved fields: Specific humidity Spec. humidity DIFF = IASI - ECMWF 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  29. Interesting observations: Specific humidity 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  30. Interesting observations: Temperature 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  31. Interesting observations: Theta-w 2013.06.20 09:00utc 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  32. Interesting observations: Theta-w 2013.06.20 10:00utc 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  33. Interesting observations: Theta-w 2013.06.20 11:00utc 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  34. Interesting observations: Theta-w 2013.06.20 12:00utc 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  35. Interesting observations: Theta-w 2013.06.20 13:00utc Theta-w (IASI) 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  36. Interesting observations: Theta-w 2013.06.20 13:00utc Theta-w (ECMWF) 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  37. Interesting observations: Theta-w 2013.06.20 13:00utc Theta-w (DIFF) IASI - ECMWF 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  38. Exploring differences: Temperature Background: ECMWF cross-section Foreground: IASI data points 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  39. Exploring differences: Relative humidity Background: ECMWF cross-section Foreground: IASI data points 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  40. Exploring differences: Specific humidity Background: ECMWF cross-section Foreground: IASI data points 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

  41. Time for short videos 3D Exploration of Weather Data in Combination with IASI L2 Products M. Koutek, KNMI, 25-09-2014

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