Year
Month
(Peer-Reviewed) Variability of Antarctic sea ice extent over the past 200 years
Jiao Yang 杨佼 ¹, Cunde Xiao 效存德 ¹ ², Jiping Liu 刘骥平 ³, Shutong Li 李姝彤 ¹ ⁴, Dahe Qin 秦大河 ¹
¹ State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China 中国科学院 西北生态环境资源研究院 冰冻圈科学国家重点实验室
² State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing 100875, China 北京师范大学 地表过程与资源生态国家重点实验室
³ Department of Atmospheric and Environmental Sciences, University at Albany, State University of New York, Albany, NY 12222, USA
⁴ College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China 中国科学院大学 资源与环境学院
Science Bulletin, 2021-07-21
Abstract

While Arctic sea ice has been decreasing in recent decades that is largely due to anthropogenic forcing, the extent of Antarctic sea ice showed a positive trend during 1979–2015, followed by an abrupt decrease. The shortness of the satellite record limits our ability to quantify the possible contribution of anthropogenic forcing and internal variability to the observed Antarctic sea ice variability.

In this study, ice core and fast ice records with annual resolution from six sites are used to reconstruct the annual-resolved northernmost latitude of sea ice edge (NLSIE) for different sectors of the Southern Ocean, including the Weddell Sea (WS), Bellingshausen Sea (BS), Amundsen Sea (AS), Ross Sea (RS), and the Indian and western Pacific Ocean (IndWPac). The linear trends of the NLSIE are analyzed for each sector for the past 100–200 years and found to be −0.08°, −0.17°, +0.07°, +0.02°, and −0.03° per decade (≥95% confidence level) for the WS, BS, AS, RS, and IndWPac, respectively.

For the entire Antarctic, our composite NLSIE shows a decreasing trend (−0.03° per decade, 99% confidence level) during the 20th century, with a rapid decline in the mid-1950s. It was not until the early 1980s that the observed increasing trend occurred.

A comparison with major climate indices shows that the long-term linear trends in all five sectors are largely dominated by the changes in the Southern Annular Mode (SAM). The multi-decadal variability in WS, BS, and AS is dominated by the Interdecadal Pacific Oscillation, whereas that in the IndWPac and RS is dominated by the SAM.
Variability of Antarctic sea ice extent over the past 200 years_1
Variability of Antarctic sea ice extent over the past 200 years_2
Variability of Antarctic sea ice extent over the past 200 years_3
Variability of Antarctic sea ice extent over the past 200 years_4
  • Natural history and cycle threshold values analysis of COVID-19 in Xiamen City, China
  • Bin Deng, Weikang Liu, Zhinan Guo, Li Luo, Tianlong Yang, Jiefeng Huang, Buasiyamu Abudunaibi, Yidun Zhang, Xue Ouyang, Demeng Wang, Chenghao Su, Tianmu Chen
  • Infectious Disease Modelling
  • 2022-08-09
  • Terahertz generation from laser-induced plasma
  • Wenfeng Sun, Xinke Wang, Yan Zhang
  • Opto-Electronic Science
  • 2022-08-04
  • Perovskite-transition metal dichalcogenides heterostructures: recent advances and future perspectives
  • Ahmed Elbanna, Ksenia Chaykun, Yulia Lekina, Yuanda Liu, Benny Febriansyah, Shuzhou Li, Jisheng Pan, Ze Xiang Shen, Jinghua Teng
  • Opto-Electronic Science
  • 2022-08-04
  • Microchip imaging cytometer: making healthcare available, accessible, and affordable
  • Xilong Yuan, Todd Darcie, Ziyin Wei, J Stewart Aitchison
  • Opto-Electronic Advances
  • 2022-08-03
  • Graphene photodetector employing double slot structure with enhanced responsivity and large bandwidth
  • Siqi Yan, Yan Zuo, Sanshui Xiao, Leif Katsuo Oxenløwe, Yunhong Ding
  • Opto-Electronic Advances
  • 2022-07-29
  • Recent advances in soft electronic materials for intrinsically stretchable optoelectronic systems
  • Ja Hoon Koo, Huiwon Yun, Woongchan Lee, Sung-Hyuk Sunwoo, Hyung Joon Shim, Dae-Hyeong Kim
  • Opto-Electronic Advances
  • 2022-07-28
  • A review and a statistical analysis of porosity in metals additively manufactured by laser powder bed fusion
  • Dawei Wang, Huili Han, Bo Sa, Kelin Li, Jujie Yan, Jiazhen Zhang, Jianguang Liu, Zhengdi He, Ning Wang, Ming Yan
  • Opto-Electronic Advances
  • 2022-07-27
  • The real-time dynamic holographic display of LN:Bi,Mg crystals and defect-related electron mobility
  • Shuolin Wang, Yidong Shan, Dahuai Zheng, Shiguo Liu, Fang Bo, Hongde Liu, Yongfa Kong, Jingjun Xu
  • Opto-Electronic Advances
  • 2022-07-27
  • 0.35% THz pulse conversion efficiency achieved by Ti:sapphire femtosecond laser filamentation in argon at 1 kHz repetition rate
  • Zhiqiang Yu, Nan Zhang, Jianxin Wang, Zijie Dai, Cheng Gong, Lie Lin, Lanjun Guo, Weiwei Liu
  • Opto-Electronic Advances
  • 2022-07-27
  • Functional isolation, culture and cryopreservation of adult human primary cardiomyocytes
  • Bingying Zhou, Xun Shi, Xiaoli Tang, Quanyi Zhao, Le Wang, Fang Yao, Yongfeng Hou, Xianqiang Wang, Wei Feng, Liqing Wang, Xiaogang Sun, Li Wang, Shengshou Hu
  • Signal Transduction and Targeted Therapy
  • 2022-07-27
  • Ultrahigh-resolution on-chip spectrometer with silicon photonic resonators
  • Long Zhang, Ming Zhang, Tangnan Chen, Dajian Liu, Shihan Hong, Daoxin Dai
  • Opto-Electronic Advances
  • 2022-07-25
  • Highly sensitive and fast response strain sensor based on evanescently coupled micro/nanofibers
  • Wen Yu, Ni Yao, Jing Pan, Wei Fang, Xiong Li, Limin Tong, Lei Zhang
  • Opto-Electronic Advances
  • 2022-07-15



  • Projection of climate extremes in China, an incremental exercise from CMIP5 to CMIP6
    About
    |
    Contact
    |
    Copyright © PubCard