1. EANET activities and the applicability to model development Kazuhide Matsuda ADORC

2. EANET monitoring sites (2001)

3. Major monitoring parameters (2001) Wet deposition (major ions): 41 sites SO 2 : 28 sites O 3 : 12 sites (Japan and Thailand) PM 10 : 14 sites (China and Japan) –PM 2.5 : 2 sites (Japan) Aerosol components, Total nitrate (nitrate + HNO 3 ), total ammonia (NH 4 + + NH 3 ) : 12 sites

4. Publications of EANET data The “Procedures on Data and Information Disclosure for the Acid Deposition Monitoring Network in East Asia (EANET)”. –Disclosed data are available for the model validations. Following reports are currently opened to the publish. –“Report on the Acid Deposition Monitoring of EANET during the Preparatory Phase” –“Data Report on the acid deposition in the East Asian region 2000”

5. Procedures of data verifications National Centers ADORC (Network Center) Data Verification Group Senior Technical Manager`s Meeting Science Advisory Committee Meeting (Inter Governmental Meeting) Data

6. Relevant activities QA/QC activities –Inter-laboratory Comparison Projects –Data Verification Programs Training programs –ADORC individual training –JICA group training Research activities on monitoring methodologies –Joint Researches between ADORC and participating countries ADORC Technical Missions

7. Model development in ADORC “ Regional Air Quality Model (RAQM)” 3D Eulerian model for regional scale Terrain following height coordinate Model Resolution Horizontal grids: 1°×1° Vertical extent: 8 layers (0.05, 0.3, 0.75, 1.5, 2.75, 4.5, 6.5, 8.75km) Gas-Phase Chemical Mechanism CBM-IV mechanism 32 species and 52 chemical reactions Wet Deposition Scavenging ratios Dry Deposition Wesely’s parameterization scheme Dust and Sea salt Modules Dust (Kosa) and sea spray droplets (sea salts) emissions

8. Monthly wet deposition calculated by RAQM nss-SO 4 2- NO 3 - NH 4 + Period: April 1999 Unit: m mol/m 2 /month

9. Influence of Miyakejima Volcano Monthly concentration changes (%) of SO 2 (A) and sulfate (B) near the surface, September 2000 AB

10. Comparison between observed and calculated values of sulfate (non sea salt) concentration in rainwater (April, 1999)

11. Comparison between observed and calculated values of nitrate in rainwater. (April, 1999)

12. Underestimation? nss-SO 4 2- Sado, Dec. NH 3 +

13. Inter- laboratory comparison Sample No. 1 High concentration Sample No. 2 Low concentration nss-SO 4 2- NH 3 +

14. Sulfate concentration in precipitation at Sado station nssSO4 2- = SO4 2- – (SO4/Na)sw x Na +

15. Comparison study on monitoring methodologies Particulate sulfate Particulate nitrate

16. MICS-Asia Phase II

17. Perspectives of the Phase II –Long-term simulation and source- receptor analysis; –Expanding the chemical species such as sulfur, nitrogen, aerosols, ground-level ozone and –Individual episodes that are of special interest for gaining insights into important conditions in Asia (e.g., yellow-sand and high ozone episodes).

18. Simulation cases Case 1 March 2002 –Yellow sand and high ozone episodes Case 2 July 2001 –Warm and high precipitation –High SO 2 episode in Japan Case 3 December 2001 –Cold and low precipitation Case 4 March 2002 –Inter-annual comparison with March 2001. –One of the tasks on the LTP project

19. Plan of the 1st attempt Inventories Dr. Street Met. fields Dr. Z. Wang Modelers Model simulations 6 th WS Study group Joint papers Compiling data set Results Data set Monitoring data Dr. Matsuda Inventory comparison Announcement March 2003 Initial condition Dr. T. Holloway