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The 7th Meeting of the Ozone Research Managers, Geneva, Switzerland 19-21 May, 2008
Satellite Ozone Monitoring and Application Research in China
Huang Fuxiang, Lu Naimeng, Zhang Peng
National Satellite Meteorological Center
NSMC, CMA, Beijing, 100081
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
Content 1: Development of Satellite Ozone
monitoring capacity in China.
Content 2:Application research of ozone data
from satellite in China.
Content 3: Recommendations
Content 4: Summary
Outline
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
Ozone instruments on FY-3 satellite
Lab calibration and field observation test
Future Plan for calibration and validation
Content 1:Development of ozone monitoring capacity
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
FY-3 satellite, which is scheduled to launch in late of
May 2008, is China’s 2nd generation of polar orbit
satellite.
Ozone Instruments on FY-3 satellite:
TOU----- Total Ozone Unit
SBUS----Solar Backscatter Ultraviolet Sounder
Ozone instruments on FY-3 satellite
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
TOU/SBUS are the first ozone instruments that China make and They are also the first ones that are carried on Chinese satellite.
The SBUS is similar with SBUV/2 and TOU similar with TOMS in design and wavelengths.
Thanks to Dr.Lawrence E.Flynn from NOAA/ NESDIS for his help in developing algorithms of FY-3 Sat under the China-U.S cooperaiton project in the field of atmospheric science and Technology.
Ozone instruments on FY-3 Sat(2)
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
Lab calibration and field observing test(1)SBUS in laboratory calibration
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
Lab calibration and field observing test(2)TOU in laboratory calibration
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
Lab calibration and field observing test(3)TOU/SBUS in field observing test
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
Inter-comparison of ozone products from FY-3 with data from other projects such as GCOS, GAW and so on.
Inter-calibration and validation between TOU/SBUS and instruments of American and European satellites.
Validation with surface-based measurements at same passing time in China.
Future plans for calibration and validation
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
Ozone variations in the Tibetan Plateau.
Comparison of satellite ozone products
with surface observation.
Variations of ozone in the troposphere
over China and the reasons.
Content 2:Application research in China
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
Who? In China, satellite ozone data users come fro
m Universities, Institutes and Space agencies.
What? Ozone variations, products validation…
Why? Change of Ozone and influence on climate ch
ange, developing satellite ozone monitoring…
Users and research Goal
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
The Tibetan Plateau is located in south-west of China. It is
the highest Plateau in the world, with average height
about 4,000 to 5,000meters above the sea level. It is
called the ‘roof of the world’ or the ‘third pole of the
earth’. The relatively strong radiation and the nature of
the ground surface make the Plateau a strong heating
source to the atmosphere.
The Tibetan Plateau
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
1.To understand the effects of large scale of topography on the
ozone distribution.
2.To determine if the ozone change can modify the surface-
atmosphere system in the Tibet region, and possibly influence
the climate system on the global scale.
3. To understand how the ozone reduction may affect the
biosphere in that region.
The aims of these research in TP
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
Ozone variations in the TP (From: Zou et al., 1996, GRL )
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
The ozone trend over the Tibetan Plateau,
deduced from TOMS 1978-1991 year-
round data is -0.79±0.82 DU/year, with the
monthly trends ranging from -0.17DU/year
to -1.79DU/year.
Main results:
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
Low ozone over the TP (From: Bian, et al., 2006 Chinese Science Bulletin)
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
By analyzing the total ozone data from TOMS an
d ground-based observations, the author found
that a large area with extremely low ozone occu
rred over the Tibetan Plateau during December
14-17, 2003. The area with total ozone < 220D
U is over 2.5 Million km2.
Main results:
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008Comparison of sat ozone products(From:Bian et al., 2005, Chinese Science Bulletin)
low data from TOMS were found during 2002-03
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
Comparison of TOMS and GB(2)
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
By comparing the total ozone data from TOMS
(SAT) and ground-based (GB) observations,
the authors found significant higher annual
mean values of GB-SAT in 2003, and very
large jumps of monthly mean were shown in
September 2002.
Main results:
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
Comparison of sat ozone profiles(From: Bian, et al., 2006 JGR)
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
The Figures show AIRS-GPS03 comparison in S
pring(MAM), Summer/Fall(JJASO) and Wint
er(NDJF). The comparison show that there exi
st difference of ozone profiles from AIRS with
ozone sonde to some extent. The scale of the dif
ference vary in different height.
Main results:
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
Tropospheric ozone variations in China
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
Residual of TOR-influencing model
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
The tropospheric ozone is often recognized to be connect
ed with human activities. By considering the influence
of surface height and population density, the authors u
se the residual to show the possible influence of large s
cale of topography on dynamical processes and conseq
uence on the distribution of tropospheric ozone over C
hina .
Main results:
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
Share the experience in developing new ozone instruments and retrieval algorithms.
Cooperate to make consistent long-term dataset from different country’s satellites.
Pay more attention to the application research using data from satellites.
Content 3 Recommendations
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
China has come to realize the importance of ozone monitoring from satellite, and are making a great effort in developing the capacity.
FY-3 is the start that Chinese satellite carrying ozone instruments, and we will develope new instruments on following satellites.
FY-3, the China’s 2nd generation polar orbit satellite, will be launch in late May 2008. We hope it will be helpful for detecting the global ozone change trends.
Content 4 Summary
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The 7th Meeting of the Ozone Research Managers, Geneva,Switzerland, 19-21 May, 2008
Ozone products from FY-3 satellite will be available to users of the whole world.
Chinese scientists have paid extensive attention to the application research according different aims in the past. More and better research projects will be carried out in the future.
Summary(2)
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The 7th Meeting of the Ozone Research Managers, Geneva, Switzerland 19-21 May, 2008
Thank you!Thank you!