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EANET Monitoring Data for The Model Intercomparison Study. Kazuhide Matsuda Acid Deposition and Oxidant Research Center (ADORC). Introduction. The preparatory phase of Acid deposition monitoring network in East Asia (EANET) was carried out successfully.
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EANET Monitoring Data for The Model Intercomparison Study Kazuhide Matsuda Acid Deposition and Oxidant Research Center (ADORC)
Introduction • The preparatory phase of Acid deposition monitoring network in East Asia (EANET) was carried out successfully. • “Report on the Acid Deposition Monitoring of EANET during the preparatory phase” was published in August 2000 with the monitoring data. • After the preparatory phase, the regular phase was started from January 2001.
Classifications of EANET sites • The data monitored in remote sites and some rural sites are suitable for validations of regional scale transport models. • The year 2000 • Remote: 16 sites • Rural: 8 sites • Urban: 14 sites
Remote sites Thana Rata, Malaysia Tarelj, Mongolia Cheju, Korea
Rural sites Serpong, Indonesia Los Banos, Philippines Patumthani, Thailand
Available monitoring data • The preparatory phase -open to public • Monthly averaged data (Apr.1998 ~ Dec.1999) • A lot of lack of data • The monitoring data in 2000 • The data set in 2000 is relatively complete. • The issue of data disclosure in the regular phase will be discussed in the 3nd Intergovernmental Meeting held in November 2001.
Quality of monitoring data for wet deposition (1) • Ion balance check (R1) • Conductivity balance check (R2)
Quality of monitoring data for wet deposition (1) • Inter-laboratory comparison project • Round robin analysis survey of uniformly prepared artificial rainwater samples SO42- (2nd Survey)
NO3- (2nd Survey) • NH4+ (2nd Survey)
Applied methods for air quality monitoring in 2000 • Automatic monitoring method • UVF (SO2) , CLD (NO, NO2) UV photometric (O3), TEOM, b-ray (PM) etc. • China, Indonesia, Japan, Thailand • Filter pack method • 4-stage filter pack method • Malaysia, Mongolia, Philippines, Russia, Vietnam
Results of the monitoring in 2000 • SO2 concentration (monthly average) • Urban • China 2, Japan 1, Mongolia 1, Philippines 1 , Thailand 2, Vietnam 1 • Rural • China 1, Indonesia 1, Japan 1, Philippines 1, Thailand 1, Vietnam 1 • Remote • Japan 8, Malaysia 1, Mongolia 1, Russia 1, Thailand 1 1 ~ 100 ppb 1 ~ 10 ppb < 1 ppb
A topic of the year 2000 • Extremely high concentration influenced by volcanic SO2 from Miyake Island volcano 12 ~ 24 September 2000
Rishiri Tappi Sado Oki Happo Banryu Ijira Miyake Island volcano Yusuhara
Summery • Availability of EANET monitoring data • 1998~1999 (opened) • 2000 (not opened yet) • Quality of the wet deposition monitoring data • Air quality monitoring • Automatic monitors and filter packs • A topic of the year 2000 • Eruption of Miyake Island volcano