1. Validation of model clouds using synthetic brightness temperature model and satellite images Zhian Sun 1, Lawrie Rikus 1, Charmaine Franklin 1, Luo San 2 and Xiaogu Zheng 2 1 Center for Australian Weather and Climate Research 2 College of Global Change and Earth System Science, Beijing Normal University, China

2. The Centre for Australian Weather and Climate Research A partnership between CSIRO and the Bureau of Meteorology Synthetic brightness temperature model Offline radiation code same as one used in NWP model but generates radiance brightness temperature as seen by satellite. Physical parameterizations same as those in NWP model, e.g. Cloud cover, microphysics, optical properties. BT is determined using the model forecast fields and compared with real-time satellite imagery.

3. Synthetic BT code has been operational at Bureau for more than 10 years Synthetic BT images are available on web once NWP forecasting finishes Results can be directly compared with the real time satellite images The Centre for Australian Weather and Climate Research A partnership between CSIRO and the Bureau of Meteorology

4. The Centre for Australian Weather and Climate Research A partnership between CSIRO and the Bureau of Meteorology TC Lua Base Date: 20120315 Base Time: 12UTC

5. The Centre for Australian Weather and Climate Research A partnership between CSIRO and the Bureau of Meteorology GMS5 min 196K Model min 222K 7 th June 2002 GMS5: MIN 186K4/7/01 Model: MIN 227K

6. The Centre for Australian Weather and Climate Research A partnership between CSIRO and the Bureau of Meteorology Factors influencing BT Cloud top height Cloud optical properties Cloud microphysical properties Cloud amount

7. The Centre for Australian Weather and Climate Research A partnership between CSIRO and the Bureau of Meteorology GMS5 MIN 196K Model MIN 205K MIN: 227K

8. The Centre for Australian Weather and Climate Research A partnership between CSIRO and the Bureau of Meteorology 50 hPa100 hPa 200 hPa 850 hPa TROP

9. The Centre for Australian Weather and Climate Research A partnership between CSIRO and the Bureau of Meteorology IAP AREM model

10. The Centre for Australian Weather and Climate Research A partnership between CSIRO and the Bureau of Meteorology

11. The Centre for Australian Weather and Climate Research A partnership between CSIRO and the Bureau of Meteorology SatelliteFY-2C GOES- 8/9/10 METEOSAT- 5/6 MODISMTSAT-1RMTSAT2 NOAA- 7/8/9/10/11/ 12/14/15/16/1 7 Number of Channels 396103318 Number of bands 122426329848 Satellite Channels ir1 ir2 wv ir1 ir2 wv ir1 wv 27/28/ 29/30/ 31/32/ 33/34/ 35/36 ir1 ir2 wv ir1 ir2 wv Ch4 Ch5

12. The Centre for Australian Weather and Climate Research A partnership between CSIRO and the Bureau of Meteorology

15. JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 115, D00H34, doi:10.1029/2009JD012384, 2010

16. Our plan Using BT code to diagnose possible problems in cloud properties in southern hemisphere Implement visible and microwave channels to enhance BT code ability for diagnosing properties in low level clouds Produce large amount of model and satellite BT covering the southern ocean areas for diagnostic and statistic studies This work may be combined with COSP for analysis of ACCESS model clouds The Centre for Australian Weather and Climate Research A partnership between CSIRO and the Bureau of Meteorology