Spatiotemporal variations of Arctic multi-year ice from 2000 to 2019
Hu Haihan , Zhang Zhilun, Li Xinqing, Hui Fengming, Zhao Jiechen, Zhuang Qifeng
Chinese Journal of Polar Research . 2022, (4): 419 -431 .  DOI: 10.13679/j.jdyj.20210070