IGAC-SPARC Joint Workshop

" The One Atmosphere : Integration, Interface, and Impact "
Scope of this workshop
The troposphere and stratosphere are not isolated but interact as one atmosphere.  Similarly,the atmosphere itself is not isolated, actively interacting with the biosphere and ocean.  In thisworkshop, we will talk about how researchers in individual regions are approaching theatmosphere in an  integrated manner, what kind of new research areas can be created tobetter understand the  interfaces, and what kind of information we can provide improve thepredictability of anthropogenic  impacts on climate and other aspects of the Earth system.  The atmosphere plays an important role in the Earth system. in which human beings live.Therefore, we will talk about new research directions in the atmospheric sciences within theunified vision of Earth Science.




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Topics
1. Aerosols and Oxidants from the Global Perspective

Asia is a region where rapidly growing anthropogenic activity is causing dramatic increases inthe atmospheric concentrations of aerosols and oxidants. Consequently, Asia is a regionwhere we can test our understanding of atmospheric chemistry and possible impacts onclimate. It is similarly important to understand processes relevant to aerosols and oxidants inother regions. In this session, new findings from recent studies made in this field arepresented. These results are examined from the global perspectives.


2. Interface between the Atmosphere, Biosphere, and Ocean

The biosphere and ocean are not a simple boundary condition (such as static emissionsources) for the atmosphere but is dynamically coupled with the atmosphere. Much moreinvestigation is needed around this interface. In this session, results from new research on theinterface area are presented.  These results will be examined for opportunities to integrateacross individual research into the Earth system.


3.Stratosphere-troposphere coupling

In this session, we discuss by what mechanisms the stratosphere and the troposphere actas a coupled system. Major topics include dynamical, chemical and radiative couplingbetween stratosphere and troposphere, transport processes of minor constituents such asozone, and dehydration within the tropical tropopause layer (TTL).


4. Impacts on Climate and Earth System

Given limited computer resources, how important is it that atmospheric chemistry processesbe included in climate models, as compared with, e.g., an increase in the spatial resolution inclimate models?  A compelling argument needs to be made to climate and Earth systemmodelers of the importance of atmospheric chemistry. In this session, recent progresses inassessing the impacts of aerosols and gaseous species on climate and the Earth system,such as activities relating to AC&C initiative, are presented. Major gaps in understanding areexamined.


LOC of Local WS
Yutaka Kondo (Univ. of Tokyo)
Makoto Koike (Univ. of Tokyo)
Masato Shiotani (kyoto Univ.)
Sachiko Hayashida (Nara Women's Univ.)
Shigeo Yoden (Kyoto Univ.)
Yasuhiro Murayama (NICT)
Yugo Kanaya (JAMSTEC)
Kenshi Takahashi (Kyoto Univ.)