slide1
Download
Skip this Video
Download Presentation
Update on Asian Studies Related to Emissions and Modeling

Loading in 2 Seconds...

play fullscreen
1 / 51

Update on Asian Studies Related to Emissions and Modeling - PowerPoint PPT Presentation


  • 87 Views
  • Uploaded on

Update on Asian Studies Related to Emissions and Modeling. Gregory R. Carmichael Department of Chemical & Biochemical Engineering Center for Global & Regional Environmental Research and the University of Iowa. Topics Reported. Recent advances in emissions estimates

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Update on Asian Studies Related to Emissions and Modeling' - nasya


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

Update on Asian Studies Related to Emissions and Modeling

Gregory R. Carmichael

Department of Chemical & Biochemical Engineering

Center for Global & Regional Environmental Research and the

University of Iowa

topics reported
Topics Reported
  • Recent advances in emissions estimates
  • Long-term sulfur deposition calculation
  • Update on model intercomparison study
  • Completed passive sampler pilot project
slide6
The TRACE-P/Ace-Asia emission inventory shows the important sources of each type of air pollutant in Asia
seasonality of emissions of the different species has been studied for china
Seasonality of emissions of the different species has been studied for China

Mainly evaporation-

related species

Mainly combustion-

related species

this is an example of trace p so 2 emissions at 30 sec resolution for the pearl river delta
This is an example of TRACE-P SO2 emissions at 30 sec. resolution for the Pearl River Delta

Boxed area ~ 150 km x 150 km

Guangzhou

Zhongshan

Shenzhen

Macau/Zhuhai

Hong Kong

30 sec = ~ 0.7 km

slide9

Biomass burning treatment combines country survey data with AVHRR analysis to give long-term average or “typical” burning amounts

slide10
Comparison of country surveys with various AVHRR fire-count adjustments reveals problem areas for further investigation

Xinjiang

Mongolia

fire count > country surveys

India

fire count < country surveys

Vietnam

Indonesia

It remains difficult to make the link

between satellite observations

of fire and atmospheric emissions

slide13
Uncertainty analysis has revealed wide differencesin our knowledge of the emissions of particularspecies in particular parts of Asia …
slide14

Distribution of Percent Primary Non-carbonaceous

PM2.5 Emissions --How to distinguish from dust?

slide17

E90

E120

E150

Rishiri

Tarukawa

Sado

Harbin

Beijing

Tsukuba

Hachijo

N30

Qingdao

Shanghai

Ogasawara

Nagasaki

& Fukue

Okinawa

Fukuoka

Amami

E.Q.

slide18

We have analyzed sulfur deposition in Asia over last 25 yrs

SULFUR EMISSIONS IN ASIA ARE CHANGING, REGION BY REGION, IN DIFFERENT WAYS

slide20

Uncertainty in the Source-Receptor Relationships

Interannual Variability (10-yrs)

slide21

Effect of Interannual Meteorological Variability

on Sulfur Deposition can be Much Larger than

Changes in Emissions!

Is there climate feedback link?

slide22

How Robust Are The Source-Receptor Relationships?

  • Need to assess inter-model variability.
  • The MICS-ASIA Study: Model InterComparison
  • of Long-Range Transport and Sulfur Deposition in
  • EastAsia

Many different models with important similarities and differences:Lagrangian, Eulerian, Hybrid, etc.

slide23

Participant(s)

Organization

Model name

Model type

Main model focus

S.-B. Kim,

T.-Y. Lee,

K-Y. Ma

Dept of Atmospheric Sciences, Yonsei University, Seoul (Korea)

YU-SADM

(Yonsei Univ.-Sulfur Acid Dep. Model)

3D Eulerian

Long-term period or episodic estimation of sulfur sources contributions

H. Hayami,

Y. Ichikawa

CRIEPI (Japan)

CRIEPI trajectory model

Lagrangian

1-layer

Long-term evaluation

H. Hayami,

O. Hertel,

Y. Ichikawa

CRIEPI (Japan) and National Env. Research Institute (Denmark)

ACDEP ASIA

Lagrangian

1-layer

Long-term evaluation

I. Uno,

E.S. Jang

Research Institute for Applied Mech., Kyushu Univ, Fukuoka (Japan)

RIAM version of RAMS on-line tracer model

3D Eulerian

Episodic and long-term simulation for chemical climate studies

Y. Ikeda,

R. Yasuda,

H. Nakaminami

Osaka Prefecture University (Japan)

OPU-Model

(Osaka Prefecture Univ.)

3D Eulerian

Long-term deposition

S.Y. Cho,

G. Carmichael

CGRER, University of Iowa

STEM

3D Eulerian

Episodic and long-term studies

G. Calori,

G. Carmichael

CGRER, University of Iowa

ATMOS-2

Lagrangian

multi-layer

Long-term conc. and depositions of sulfur in Asia. Source-receptor relationships.

M. Engardt

Swedish Meteorological and Hydrological Institute

MATCH

3D Eulerian

Long-term concentrations and depositions of ozone and acidifying substances

slide30

http://www.cgrer.uiowa.edu/people/carmichael/GURME/GURME.htmlhttp://www.cgrer.uiowa.edu/people/carmichael/GURME/GURME.html

on going activities
On-going Activities
  • Continued needs to improve emission estimates
  • Follow-on activities related to model inter-comparison
  • Interest in expanding base-line measurements – e.g., ABC study
  • Closer linkages between urban/regional/global scales and health,air quality, climate communities
  • WMO-GURME
slide32

Analysis Framework

Climate : Air Quality

slide36

Percentage contribution to total sulfur deposition due to SO2

emissions from megacities and major urban centers in Asia,

averaged over the period of 1975-2000

slide40
Biomass burning treatment combines country survey data with AVHRR analysis to give long-term average or “typical” burning amounts

Original two-year daily fire

count data for 1999-2000

slide41

Nitrate Deposition is of Growing Importance

% of Total Deposition as Nitrate

slide42
Speciation of NMVOC reveals great differencesamong countries with different levels ofeconomic development
slide45
… and converted them into appropriate profiles for China for the three different emission layers (both January and July)
transboundary pollution issues are of growing importance
Transboundary Pollution Issues are of Growing Importance

S-Deposition

RAINS-Asia –Carmichael et al., (2001)

transboundary pollution issues are of growing importance1
Transboundary Pollution Issues are of Growing Importance

S-Deposition

RAINS-Asia –Carmichael et al., (2001)

ad