2021. 01 Water sampling at Suyeong River, Busan
2021. 02 Water sampling at Nakdong River estuary, Busan
2021. 03 PKNU campus with lab members, Busan
2021. 05 IBRV Araon Test Cruise for newly equipped clean seawater sampling systems, Yeosu - Pohang
2021. 07 Water sampling at Nakdong River estuary, Busan (with Prof. Jong-Sik Ryu, Isotope Geochemistry Group, Pukyong National Univ.)
2021. 07 - 2021. 09 IBRV Araon research cruise in the Arctic Ocean
2021. 11 Fall meeting of the Korean Society of Oceanography, Jeju
2021. 11 Research Training Cruise by R/V NARA, Gwangyang Bay
2021. 12 PKNU campus with lab members, Busan