Introduction

This document provides the implementation plan and the related information of the ABC East Asian Regional Experiment (ABC-EAREX2005) organized by scientists under the UNEP/Atmospheric Brown Cloud (ABC) Project (Ramanathan and Crutzen, 2003; http://www-abc-asia.ucsd.edu/). The objective of the ABC project is to understand the effects of human activities in the Asian region to the earth's climate and environment. Two regional experiments for the first phase of the ABC project have been planed in order to delineate the regional aspects of the effects and to compare the results from instruments used by different groups in the project in order to assure the homogeneity of data acquired by the ABC monitoring system in Asia. The earlier regional experiment proceeding to the EAREX2005 is the ABC Maldives Monsoon Experiment (APMEX) conducted from 1 October to 15 November 2004 in the South Asian region with the main station at Hanimandhoo, Maldives. Following the APMEX, the EAREX2005 will be conducted in March 2005 in the East Asian region (Fig. 1) where large anthropogenic emission sources of aerosols and gases are distributed. Especially in springtime the area is covered by various type aerosols including Asian mineral dust and anthropogenic aerosols. The difference in the airmass characteristics in the two experiments is important to be studied by the experiment.

Implementation Plan for the ABC East Asian Regional Experiment 2005 [.pdf, 498.4Kb]