Variability in Antarctic sea ice from 1998 to 2017

被引：2
|
作者：
Wu, Zhankai [1 ]
Wang, Xingdong [1 ,2 ]
机构：
[1] Henan Univ Technol, Coll Informat Sci & Engn, Zhengzhou 450001, Henan, Peoples R China
[2] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Beijing 100094, Peoples R China
来源：
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2019年 / 26卷 / 22期
基金：
中国国家自然科学基金;
关键词：
Antarctic; Total sea ice; First-year ice; Sea ice melt duration; Multiyear ice; CLIMATE; TRENDS;
D O I：
10.1007/s11356-019-05569-1
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
This study was based on the daily sea ice concentration data from the NASA Team algorithm from 1998 to 2017. The Antarctic sea ice was analyzed from the total sea ice area (SIA), first-year ice area, and multiyear ice area. On a temporal scale, the changes in sea ice parameters were studied over the whole 20years. The results showed that the total SIA increased by 0.0087x10(6)km(2)year(-1) (+2.08% dec(-1)) between 1998 and 2017. The multiyear ice area increased by 0.0141x10(6)km(2)year(-1) from 1998 to 2017. The first-year ice area decreased by -0.0058x10(6)km(2)year(-1) between 1998 and 2017. On a spatial scale, the entire Antarctic was divided into two areas, namely West Antarctica (WA) and East Antarctica (EA), according to the spatial change rate of sea ice concentration. The total sea ice and multiyear ice areas showed a decreasing trend in WA. However, the total SIA and multiyear ice area all showed an increasing trend in EA. Therefore, Antarctic sea ice presented an increasing trend, but there were different trends in WA and EA.
引用
收藏
页码：22312 / 22322
页数：11
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