典型文献
Contraction and warming of Antarctic Bottom Water in the Amundsen Sea
文献摘要：
Antarctic Bottom Water (AABW) plays an important role in the meridional overturning circulation and contributes significantly to global heat transport and sea level rise (SLR). Based on the Global Ocean (1/12)° Physical Reanalysis (GLORYS12V1) products and conductivity-temperature-depth instrument data from the World Ocean Circulation Experiment hydrographic program, we analyzed the trends in the thickness, volume, temperature, salinity, and neutral density of the AABW in the Amundsen Sea from 1993 to 2017. Over the past 25 years, the volume has decreased by 3.45×1012 m3/a, thinning at a rate of 5 m/a. In the vertical direction, the contraction of the AABW is compensated by the volume expansion of the Circumpolar Deep Water. As the volume of AABW decreases, the temperature of the AABW increases by about 0.002°C/a. This warming is equivalent to a heat flux of 0.27 W/m2. A local SLR is produced due to thermal expansion of 0.35 mm/a. During the study period, the neutral density decreased by 0.0003 kg/(m3?a) due to warming. In the horizontal direction, the volume of AABW flowing from the Ross Sea into the Amundsen Sea gradually decreases and the temperature of the AABW increases continuously. The horizontal transport loss of the AABW volume is 4.07×1014 m3 and the horizontal heat transport results in a 0.03°C increase in the temperature of the AABW.
文献关键词：
中图分类号：
作者姓名：
Yu Bai;Liang Zhao;Jingen Xiao;Shiying Lin
作者机构：
College of Marine and Environmental Sciences,Tianjin University of Science and Technology,Tianjin 300457,China;School of Marine Science and Technology,Tianjin University,Tianjin 300072,China
文献出处：
引用格式：
[1]Yu Bai;Liang Zhao;Jingen Xiao;Shiying Lin-.Contraction and warming of Antarctic Bottom Water in the Amundsen Sea)[J].海洋学报（英文版）,2022(04):68-79
A类：
AABW,GLORYS12V1
B类：
Contraction,warming,Antarctic,Bottom,Water,Amundsen,Sea,plays,important,role,meridional,overturning,circulation,contributes,significantly,global,heat,transport,sea,level,rise,SLR,Based,Global,Ocean,Physical,Reanalysis,products,conductivity,temperature,depth,instrument,data,from,World,Circulation,Experiment,hydrographic,program,we,analyzed,trends,thickness,volume,salinity,neutral,density,Over,past,years,has,decreased,by,thinning,rate,In,vertical,direction,contraction,compensated,expansion,Circumpolar,Deep,decreases,increases,about,This,equivalent,flux,local,produced,due,thermal,During,study,period,horizontal,flowing,Ross,into,gradually,continuously,loss,results
AB值：
0.471332
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