Aerosol Transport to the U.S. Receptor Sites during ACE-Asia

ACE-Asia provided an unprecedented characterization of aerosols leaving Asia in the Spring of 2001, including but not limited to detailed size/time/compositionally resolved aerosols of our part of the program. We took advantage of this opportunity to measure the amount of types of aerosols arriving in the eastern Pacific through a network of 5 surface based sampling sites, all equipped with equipment identical to that we were using in Asia. These sites are unique such that they are not heavily influenced locally or have few urban or industrial sources thus transport across the Pacific to these sites can be observed. We will discuss each of the three major dust storms observed leaving Asia and their subsequent trajectories across the Pacific. The data will be compared to trajectory, transport, and satellite measurements of the storms. Finally, aerosol mass and the size/time/compositionally resolved aerosols at the receptor sites will be compared to the data as the aerosols left Asia.