Update on the Regional Workshop and overview of Japanese Research Projects “The One Atmosphere” IGAC-SPARC Joint Workshop in Kyoto, October 25 and 26 First.

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Presentation transcript:

Update on the Regional Workshop and overview of Japanese Research Projects “The One Atmosphere” IGAC-SPARC Joint Workshop in Kyoto, October 25 and 26 First Observation Data from the Superconducting Submillimeter-Wave Limb- Emission Sounder (SMILES) PANSY – Program of the Antarctic Syowa MST/IS Radar (by K. Sato)

“The One Atmosphere” IGAC-SPARC Joint Workshop Key Note: K. Law and T. Shepherd 1.Aerosols and Oxidants from the Global Perspective 2.Interface between the Atmosphere, Biosphere, and Ocean 3.Stratosphere- troposphere coupling 4.Impacts on Climate and Earth System

Meteorological Interpretation TTL mostly covered by the air mass from S midlatitudes 350~354K (13.1~15.2km): Super-saturation (<25%) Aerosol layer (BSR max 12.8; 351K) detected by Cobald/blue Layered structure Intrusion from N midlatitudes ‘Cold trap’ dehydration for a few days before arrival at Biak Warm/dry layer (356~364K) Possible hydration by deep convection (T-T bb > - 20 degrees) Experiencing low SMR over Biak P-15: Simultaneous observations of humidity by CFH and cirrus clouds by lidar Shibata et al. Presented by F. Hasebe

P-14: Seasonal to long-term variations of water vapor in the tropical lower stratosphere observed with balloon-borne hygrometers 1)The 1990s: a gradual increase from ~3.6 to ~4 ppmv (~3 ppmv in September) 2)From 2000 to : a drop 3)After 2004: returned to the numbers in the late 1990s  Decadal Variations ! 4)MLS and CFHs generally agree well; annual and QBO amplitudes greater for CFHs 5)HALOE is about 0.5 ppmv lower than MLS and CFHs in Fujiwara et al.

Mean meridional wind V* Mean vertical wind W* Mean-meridional circulation: January Compared to a coarse resolution model, the high resolution model has ・ stronger convergence of the mean downward velocity in the lowermost stratosphere ・ stronger and sharper meridional divergent flows in both the tropical Hadley circulation and the extratropical direct circulation 4PVU Presented by Y. Miyazaki

Column ozone deviation in the tropics REF2 NCC black ： total ozone deviation, red ： column ozone above 20hPa, green ： column ozone below 20 hPa, CCMVal-1, CCSR/NIES Presented by H. Akiyoshi