The step-like evolution of Arctic open water.

The step-like evolution of Arctic open water.
复制标题

DOI:
10.1038/s41598-018-35064-5
复制
发表时间:
2018-11-15
期刊:
影响因子:
4.6
通讯作者:
Fetterer F
Fetterer F
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Goldstein MA;Lynch AH;Zsom A;Arbetter T;Chang A;Fetterer F

文献摘要

参考文献

被引文献

相似文献

利用卫星时代的冰集中记录(1979-2017)分析了北极9月份的开放水域分数。有证据表明,太平洋地区出现了三个断点(平均值的变化),从1989年、2002年和2007年开始,开放水域的数量更多。大西洋地区开放水域记录中的断点在1971年较长的记录中很明显,在2000年和2011年左右。在加拿大队和俄罗斯队的下半场,多个破发点也很明显。使用太平洋和大西洋部分探测到的断点的统计模型,以及加拿大和俄罗斯部分以及整个北极断点的模型,在拟合数据方面优于线性趋势模型。从物理角度来看,研究结果支持这样一种观点,即北冰洋海冰可能存在临界点,超过临界点就不太可能恢复到以前的状态。从分析的角度来看,这些发现表明,使用断点方法对数据进行去含义比使用线性趋势方法更不可能产生虚假信号。
September open water fraction in the Arctic is analyzed using the satellite era record of ice concentration (1979–2017). Evidence is presented that three breakpoints (shifts in the mean) occurred in the Pacific sector, with higher amounts of open water starting in 1989, 2002, and 2007. Breakpoints in the Atlantic sector record of open water are evident in 1971 in longer records, and around 2000 and 2011. Multiple breakpoints are also evident in the Canadian and Russian halves. Statistical models that use detected breakpoints of the Pacific and Atlantic sectors, as well as models with breakpoints in the Canadian and Russian halves and the Arctic as a whole, outperform linear trend models in fitting the data. From a physical standpoint, the results support the thesis that Arctic sea ice may have critical points beyond which a return to the previous state is less likely. From an analysis standpoint, the findings imply that de-meaning the data using the breakpoint means is less likely to cause spurious signals than employing a linear detrend.
DOI: 10.1029/96gl04021
发表时间: 1997-02-15
影响因子: 5.2
作者:
Bjorgo, E;Johannessen, OM;Miles, MW
通讯作者: Miles, MW
DOI: 10.1126/science.aai8204
发表时间: 2017-04-21
期刊: SCIENCE
影响因子: 56.9
作者:
Polyakov, Igor V.;Pnyushkov, Andrey V.;Yulin, Alexander
通讯作者: Yulin, Alexander
DOI: 10.1109/tgrs.2005.846151
发表时间: 2005-06-01
影响因子: 8.2
作者:
Meier, WN
通讯作者: Meier, WN
DOI: 10.1029/2004gl019858
发表时间: 2004-05-13
影响因子: 5.2
作者:
Liu, JP;Curry, JA;Hu, YY
通讯作者: Hu, YY
DOI: 10.1016/j.physleta.2010.08.025
发表时间: 2010-09-06
期刊: PHYSICS LETTERS A
影响因子: 2.6
作者:
Douglass, David H.
通讯作者: Douglass, David H.