An oceanic heat transport pathway to the Amundsen Sea Embayment
An oceanic heat transport pathway to the Amundsen Sea Embayment
复制标题
通往阿蒙森海湾的海洋热传输路径
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
S. Gille
中科院分区：
文献类型：
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作者：
Angelica R. Rodriguez;M. Mazloff;S. Gille
作者：Rodriguez，AR; Mazloff，MR; Gille，ST|摘要：© 2016.美国地球物理学会。All Rights Reserved.南极西部海岸线上的阿蒙森海湾（ASE）已被确定为冰川加速融化的地区。分析了2005-2010年阿蒙森海区域的南大洋状态估计（SOSE）。SOSE海洋热收支表明，参数化的小尺度混合的ASE沃茨的热含量的贡献是很小的平流和当地的海气热通量相比，这两个都有助于显着的ASE沃茨的热含量。以上的永久密度跃层，当地的海气通量占主导地位的热量收支和海冰覆盖率的季节变化控制。总体而言，在2005年至2010年期间，该模型显示了ASE内密度跃层上方的地表净加热。永久密度跃层以下的海水不受海气热通量的影响，因此，热平流的发散是这些沃茨海洋热含量增加的主要原因。海洋运输的质量和热量到ASE是占主导地位的跨大陆架输入，主要是地转低于永久密度跃层。诊断的时间平均SOSE涡度预算沿着大陆架斜坡表明，跨大陆架运输是持续的涡度输入从本地化的风应力旋度在大陆架断裂。
Author(s): Rodriguez, AR; Mazloff, MR; Gille, ST | Abstract: © 2016. American Geophysical Union. All Rights Reserved. The Amundsen Sea Embayment (ASE) on the West Antarctic coastline has been identified as a region of accelerated glacial melting. A Southern Ocean State Estimate (SOSE) is analyzed over the 2005–2010 time period in the Amundsen Sea region. The SOSE oceanic heat budget reveals that the contribution of parameterized small-scale mixing to the heat content of the ASE waters is small compared to advection and local air-sea heat flux, both of which contribute significantly to the heat content of the ASE waters. Above the permanent pycnocline, the local air-sea flux dominates the heat budget and is controlled by seasonal changes in sea ice coverage. Overall, between 2005 and 2010, the model shows a net heating in the surface above the pycnocline within the ASE. Sea water below the permanent pycnocline is isolated from the influence of air-sea heat fluxes, and thus, the divergence of heat advection is the major contributor to increased oceanic heat content of these waters. Oceanic transport of mass and heat into the ASE is dominated by the cross-shelf input and is primarily geostrophic below the permanent pycnocline. Diagnosis of the time-mean SOSE vorticity budget along the continental shelf slope indicates that the cross-shelf transport is sustained by vorticity input from the localized wind-stress curl over the shelf break.
影响因子：
18.3
作者：
Rignot, Eric;Bamber, Jonathan L.;Van Meijgaard, Erik
通讯作者：
Van Meijgaard, Erik
影响因子：
3.2
作者：
Losch, Martin;Menemenlis, Dimitris;Hill, Chris
通讯作者：
Hill, Chris
根据六次重新分析得出的气候学和最近阿蒙森海西风的增加
DOI：
10.1002/joc.3473
发表时间：
2012
期刊：
International Journal of Climatology
影响因子：
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作者：
Bracegirdle T
通讯作者：
Bracegirdle T