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| Spectroscopic Approach towards
Local and Global Management |
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Projects
Spectroscopic
Approach towards Local and Global Management
China
Sky
Principal Investigators
MIT: J.Steinfeld,
D.Nocera
ETH: M.Quack, M.Sigrist, A.Ohmura
UT: K.Hirao,
K.Yamashita
Chalmers: B.Galle
EPFL: H.van den
Bergh
Atmospheric trace gases play an increasingly important
role in the earth’s environment, largely as a result of increased
human activities. They have globally a crucial influence on the
earth’s climate and chemical reaction networks in the atmosphere,
and locally on human, animal and plant health. In the context of
sustainable development it will be necessary in the future to
develop approaches for managing the trace gas content of the
atmosphere on both local and global scales.
"Spectroscopic
Approach towards Local and Global
Management"
Goals/Objectives
The development and
implementation of spectroscopic approaches to the management of the
earth’s atmosphere. Dissemination of the knowledge from these
results to decision-making administrations and potential users is
part of the second and third phases.
- Developing fundamental new spectroscopic techniques and
methods for atmospheric trace gas detection.
- Ab initio calculation of spectroscopic properties of
atmospheric trace gases.
- Spectroscopic data base generation and management.
- Field measurements, monitoring, and decision planning.
- Observation and modeling of global atmospheric absorption and
emission.
- Use of new techniques and their results in advanced models
will demonstrate their usefulness in pollution forecast, policy
and decision making. Particular emphasis will be placed to bring
developments to implementation by
users.
Results/Findings
- Substantial progress has been made in demonstration of novel
techniques and in selected applications to key atmospheric
molecular species. Testing was done on several atmospheric
species
- A mobile system for field monitoring is currently implemented
in a measurement campaign for road traffic monitoring at a freeway
tunnel near Zurich. Emphasis is put on on-line ammonia recording
and comparison measurements with other instrumentation.
- The Lidar group of LPAS is developing a next generation of
mid-IR laser absorption spectrometers for creating compact and
highly adaptable devices for routine field deployment.
- Theoretical studies of interlayer dielectrics suggest a
possibility for replacement of high-GWP PFC compounds in the
semiconductor industry.
- A prototype DOAS system has been built and tested in Shanghai.
A second prototype, based on Chinese components, is being
developed, and provision for production and training of operators
in China has been initiated.
"China Sky"
Urban
air pollution is a serious concern in China and there is a need for
qualified measurements of a range of compounds on a nation-wide
basis. The project aims to set up a network of high quality air
monitoring station in China at affordable cost.
Goals/Objectives
- To promote a widespread use of DOAS (Differential Optical
Absorption Spectroscopy) for atmospheric measurements in China.
- To establish god scientific contacts between the participating
universities.
- To get scientific access to atmospheric data from a very
dynamic part of the world.
Results/Findings
- A Chinese PhD student has got his basic training in Gothenburg
and Heidelberg
- A first DOAS-prototype has been built and during Oct 2001 –
April 2002 the system was successful in testing Shanghai.
- A second prototype, based on Chinese components is being
developed and provision for production and training of operators
in China has been initiated.
- Inter-comparison between ChinaSky DOAS system with Point
Atmospheric Monitor Station at Hongkou National Air Monitoring
Station (Shanghai EPA)
- Searching for co-operation partners for DOAS production in
Shanghai.
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