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Cloud Ice Wkshop, 10-11 June 2004

Requirements Space. ~ IR region of Importance. 10 3. X. D me (µm). mid lat. (A. Heym). trop. (A. Heym). X. 10 2. core. deep convection /anvil. Z. Wang: SGP, TWP. X. 10. discussion A. Heym. 10 4. 10 -1. 1. 10. 10 2. 10 3. IWP (g/m 2 ). Cloud Ice Wkshop, 10-11 June 2004.

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Cloud Ice Wkshop, 10-11 June 2004

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  1. Requirements Space ~ IR region of Importance 103 X Dme (µm) mid lat. (A. Heym) trop. (A. Heym) X 102 core deep convection /anvil Z. Wang: SGP, TWP X 10 discussion A. Heym 104 10-1 1 10 102 103 IWP (g/m2) Cloud Ice Wkshop, 10-11 June 2004

  2. 103 particle size (µm) 102 10 10-1 1 10 102 103 IWP (g/m2) or optical thickness Approx. Solution Space~ 3dB (100% rel error), fundamental/default size space Disadvantages Daytime only Multilevel clouds Sfc. albedo (t, re for small t) Vertical inhomog. (IWP) Habit mixture, size dist. Advantages High spatial resolution Future capability (VIIRS - NPP, NPOESS) solar (MODIS, land sfc) re t S. Platnick, Cloud Ice Wkshop, 11 June 2004

  3. solar (MODIS, land) ? (vert. inhomog.) re IWP Approx. Solution Space~ 3dB (100% rel error), fundamental/default size space 103 particle size (µm) 102 10 10-1 1 10 102 103 IWP (g/m2) or optical thickness S. Platnick, Cloud Ice Wkshop, 11 June 2004

  4. 103 particle size (µm) 102 CALIPSO lidar (t) 10 10-1 1 10 102 103 IWP (g/m2) or optical thickness Approx. Solution Space~ 3dB (100% rel error), fundamental/default size space Advantages Sensitivity for thin clouds Separate individual layers Disadvantages Limited cloud thickness Use of lidar ratio for small t Nadir only S. Platnick, Cloud Ice Wkshop, 11 June 2004

  5. 103 particle size (µm) 102 10 10-1 1 10 102 103 IWP (g/m2) or optical thickness Approx. Solution Space~ 3dB (100% rel error), fundamental/default size space Advantages Novel technique Vertical info Good sensitivity UARS, Aura Disadvantages hIWP vs vertical IWP Horiz. spatial resolution Habit mixture, size dist. MLS (hIWP) S. Platnick, Cloud Ice Wkshop, 11 June 2004

  6. 103 particle size (µm) 102 IR re 10 t 10-1 1 10 102 103 IWP (g/m2) or optical thickness Approx. Solution Space~ 3dB (100% rel error), fundamental/default size space Disadvantages Upwelling radiance B.C. Limited cloud thickness Habit mixture, size dist. Advantages High spatial resolution Future capability (VIIRS, CrIS - NPP, NPOESS) S. Platnick, Cloud Ice Wkshop, 11 June 2004

  7. 103 particle size (µm) 102 10 10-1 1 10 102 103 IWP (g/m2) or optical thickness Approx. Solution Space~ 3dB (100% rel error), fundamental/default size space Disadvantages Upwelling radiance B.C. Limited cloud thickness Habit mixture, size dist. Advantages High spatial resolution Future capability (VIIRS, CrIS - NPP, NPOESS) IR re IWP S. Platnick, Cloud Ice Wkshop, 11 June 2004

  8. 103 particle size (µm) 102 10 CALIPSO lidar (t) 10-1 1 10 102 103 IWP (g/m2) or optical thickness Approx. Solution Space~ 3dB (100% rel error), fundamental/default size space solar (MODIS, land sfc) IR re re re IWP t t IWP MLS (hIWP) S. Platnick, Cloud Ice Wkshop, 11 June 2004

  9. 103 CloudSat particle size (µm) ? IWP 102 re 20 dBZ? (use CRS as a proxy?) 10 CALIPSO lidar (t) 10-1 1 10 102 103 IWP (g/m2) or optical thickness Approx. Solution Space~ 3dB (100% rel error), fundamental/default size space solar (MODIS, land sfc) IR re re re IWP t t IWP MLS (hIWP) S. Platnick, Cloud Ice Wkshop, 11 June 2004

  10. submm, median error 103 IWP Dme CloudSat particle size (µm) ? IWP 102 re ? 10 CALIPSO lidar (t) 10-1 1 10 102 103 IWP (g/m2) or optical thickness Approx. Solution Space~ 3dB (100% rel error), fundamental/default size space solar (MODIS, land sfc) IR re re re IWP t t IWP MLS (hIWP) S. Platnick, Cloud Ice Wkshop, 11 June 2004

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