Trans-Pacific Saharan dust recorded in Mount Logan ice core
Kana Nagashima·Naoko Nagatsuka·Akinori Ito·Sumito MATOBA·Takayuki Shiraiwa·Motohiro Hirabayashi·Syosaku Kanamori·Kumiko Goto-Azuma·Satoshi Okabe
Abstract Long-range transported dust across the North Pacific influences the climate by altering radiative forcing, affecting cloud properties as it acts as an ice nucleus, and impacting surface ocean biogeochemistry and carbon cycling through the supply of iron to the subarctic Pacific, a region characterized by high nutrients and low chlorophyll. Asian dust has for a long time been considered the dominant source of trans-Pacific dust; yet recent numerical simulations have revealed the frequent