We explored the transporting processes for the Asian dust observed over South Korea. The frequency of Asian dust days (ADDs) were used to analyze the associations of the ADDs with land surface conditions over the four source regions, including inner-Mongolia, the Gobi Desert, Manchuria, and Loess Plateau, and atmospheric synoptic variables over central and eastern Asia. Precipitation and Palmer Drought Severity Index (PDSI) in the source regions during the previous summer were negatively correlated with the ADDs in South Korea. Statistically and physically more significant processes were found in the associations of atmospheric synoptic conditions with the ADDs. The intensified winds of northwesterly-northerlynorthwesterly over a pathway of the Asian dust from the source regions to South Korea were identified during high ADDs years in South Korea. A dipole pattern of anti-cyclonic and cyclonic anomalies over central and eastern Asia, respectively, supported the Asian dust pathway.

Abstract
 1. Introduction
 2. Data and Methods
 3. Results and Discussion
  1) Relationships between land surfaceconditions over the source regionsand the Asian dust over South Korea
  2) Roles of atmospheric synoptic conditionsin transporting Asian dust toSouth Korea
 4. Conclusions and Remarks
 References

• Sunyoung Kim(National Institute of Meteorological Sciences (NIMS), Korea Meteorological Administration (KMA))
• Eungul Lee(Department of Geology & Geography, West Virginia University)
• Seungho Lee(Department of Geography, Konkuk University) Correspondence