Tentative Plan of Taiwan for ACE-Asia

Tentative Plan of Taiwan for ACE-Asia

1. Scientific Tasks

Surface measurements

Basic IMPROVE sampling and analysis of aerosol chemical compositions at two basic sites (Lanyu island and Mt. Bamboo).
Aerosol mass and number spectrum during intensive observation periods in 2001.
Radiative properties as proposed in ACE-Asia at one selected site.
Cloud/precipitation chemistry at Mt. Bamboo site.
Surface meteorological measurements.

Airborne measurements

Hydrocarbons

Modeling

Aerosol particle nucleation and spectral evolution
Chemistry-aerosol-cloud interactions

Site Operation

Pre-study: before August 1, 2000.
Basic operation: after August 1, 2000 at Lanyu island and Mt. Bamboo sites.
Enhanced operation: March-April of 2001, including a coastal site at Wan-Li.

2. Description of the Sites

Lan-Yu baseline site

Lan-Yu baseline site is presently operated by the Central Weather Bureau (CWB).
Current measurements are primarily focused on trace gasses including SO₂, NO_x, CO, CO₂ and O₃.
Meteorological parameters can be obtained from a nearby weather station.

Mt. Bamboo site

This site is around 1100 m MSL, located at the peak of Mt. Bamboo, which is the highest one at the surrounding area.
This site was originally established for studying the cloud chemistry and the long-range transport of acid substances through cloud systems deriving from the Asian Continent. Recently, it has been proposed to become a routine site for monitoring regional pollution.

Wan-Li site

This site is planned only for intensive operation periods of ACE-Asia.
The exact location is under assessment. It would be expected to locate at the northeast coast of Taiwan, which is considered to be free from local emissions.
Both Mt. Bamboo and Wan-Li sites will be used to collect aerosol samples associated with the airmass from above and below the marine boundary layer, respectively, during the experimental periods of ACE-Asia.

In addition, a parallel study of radiative properties is conducted in Taipei. This will be included in our proposal for ACE-Asia. Possibly, these instruments will be relocated to one of our ACE-Asia sites in 2001.

3. Scientific Team

Academia Sinica of Taiwan
Prof. Shaw Liu: ozone chemistry, atmospheric chemistry modeling
Dr. T.-Y. Chen: CFCs and HCs sampling and analysis

National Taiwan University
Prof. C. M. Liu : radiation
Prof. J. P. Chen: modeling aerosol and cloud physics/chemistry
Prof. P. H. Lin: meteorological observations, including radiation
Prof. F. J. Lin: marine aerosol chemistry

National Central University
Prof. N. H. Lin: acid deposition and cloud measurement/modeling
Prof. C. T. Lee: aerosol chemistry and optical measurement
Prof. J. L. Wang: trace gas measurement

National Sun Yat-sen University
Prof. C.-S. Yuan: aerosol chemistry

National Chung Hsing University
Prof. M. T. Cheng: aerosol chemical composition and visibility

Chung Shan Medical & Dental College
Prof. S. C. Long: analytical chemistry

Central Weather Bureau:
Dr. H. W. Chang: Lan-Yu baseline station

Contact person:
Prof. N.-H. (George) Lin
Department of Atmospheric Sciences,
National Central University,
Chung-Li, TAIWAN
Tel&Fax: +886-3-4254069 E-mail: nhlin@rainbow.atm.ncu.edu.tw