Long-Range Atmospheric Transport of Soil Dust from Asia to the Tropical North Pacific: Temporal Variability

Science  26 Sep 1980:
Vol. 209, Issue 4464, pp. 1522-1524
DOI: 10.1126/science.209.4464.1522


The concentration of airborne soil dust at Enewetak Atoll(11°N, 162°E) in April 1979 was 2.3 micrograms per cubic meter but decreased steadily to 0.02 microgram per cubic meter over the next 5 months. The spring dust is probably derived from China; its deposition rate (∼0.3 millimeter per 1000 years) suggests that it may be a significant contributor to the deep-sea sediments of the North Pacific.