Meteorological and cloud conditions during the Arctic Ocean 2018 expedition
Meteorological and cloud conditions during the Arctic Ocean 2018 expedition
复制标题
2018年北冰洋考察期间的气象和云状况
DOI：
10.5194/acp-2020-219
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发表时间：
2020
影响因子：
6.3
通讯作者：
R. Neely III
中科院分区：
文献类型：
--
作者：
J. Vüllers;P. Achtert;I. Brooks;M. Tjernström;J. Prytherch;Annika Burzik;R. Neely III
抽象的。 2018 年北冰洋 (AO2018) 在中部地区举行
2018 年 8 月和 9 月，瑞典破冰船奥登号在北冰洋航行。安
广泛的仪器套件提供了详细的表面测量
水化学与生物学、海冰与海洋物理与生物地球化学
特性、表面交换过程、气溶胶、云以及状态
气氛。测量结果提供了重要信息
海洋和冰面与大气的耦合，特别是与大气的耦合
云。本文提供了 (i) 天气尺度的概述
大气条件及其气候异常，以帮助解释
过程研究并将 AO2018 的详细观察结果放入更大的模型中
空间和时间上的上下文； (ii) 统计分析
热力学和近地表气象条件、边界层、
云、雾的特征； (iii) 结果与
早期北冰洋探险的观测结果——特别是
AOE1996（北冰洋探险 1996）、SHEBA（北冰洋表面热量收支）、AOE2001（北冰洋实验 2001）、ASCOS（北冰洋夏季云海研究）、
ACSE（夏季实验中的北极云）和 AO2016
（北冰洋 2016）——提供对
测量的代表性。结果表明，近地表
条件与早期实验大致相当；然而
热力学垂直结构有很大不同。异常高
深度达到约 1 公里深度的充分混合边界层的频率发生，并且
只有少数“典型”的北极夏季单层案例
观察到层积云甲板。相反，数量出乎意料地高
整个过程中存在多个云层和中层云
活动。这些与以往研究的差异与高
2018 年北极中部气旋活动的频率。
Abstract. The Arctic Ocean 2018 (AO2018) took place in the central
Arctic Ocean in August and September 2018 on the Swedish icebreaker Oden. An
extensive suite of instrumentation provided detailed measurements of surface
water chemistry and biology, sea ice and ocean physical and biogeochemical
properties, surface exchange processes, aerosols, clouds, and the state of
the atmosphere. The measurements provide important information on the
coupling of the ocean and ice surface to the atmosphere and in particular to
clouds. This paper provides (i) an overview of the synoptic-scale
atmospheric conditions and their climatological anomaly to help interpret the
process studies and put the detailed observations from AO2018 into a larger
context, both spatially and temporally; (ii) a statistical analysis of the
thermodynamic and near-surface meteorological conditions, boundary layer,
cloud, and fog characteristics; and (iii) a comparison of the results to
observations from earlier Arctic Ocean expeditions – in particular
AOE1996 (Arctic Ocean Expedition 1996), SHEBA (Surface Heat Budget of the Arctic Ocean), AOE2001 (Arctic Ocean Experiment 2001), ASCOS (Arctic Summer Cloud Ocean Study),
ACSE (Arctic Clouds in Summer Experiment), and AO2016
(Arctic Ocean 2016) – to provide an assessment of the
representativeness of the measurements. The results show that near-surface
conditions were broadly comparable to earlier experiments; however the
thermodynamic vertical structure was quite different. An unusually high
frequency of well-mixed boundary layers up to about 1 km depth occurred, and
only a few cases of the “prototypical” Arctic summer single-layer
stratocumulus deck were observed. Instead, an unexpectedly high amount of
multiple cloud layers and mid-level clouds were present throughout the
campaign. These differences from previous studies are related to the high
frequency of cyclonic activity in the central Arctic in 2018.
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2014 年 ACSE 期间船载 Cloudnet 观测的北极液体和混合相云的特性
DOI：
10.5194/acp-2020-56
发表时间：
2020
期刊：
--
影响因子：
--
作者：
Achtert P
通讯作者：
Achtert P
影响因子：
4.6
作者：
J. Sedlar;M. Tjernström;T. Mauritsen;M. Shupe;I. Brooks;P. Persson;C. Birch;C. Leck;A. Sirevaag;M. Nicolaus;M. Nicolaus
通讯作者：
J. Sedlar;M. Tjernström;T. Mauritsen;M. Shupe;I. Brooks;P. Persson;C. Birch;C. Leck;A. Sirevaag;M. Nicolaus;M. Nicolaus
影响因子：
6.3
作者：
Shupe, M. D.;Persson, P. O. G.;Leck, C.
通讯作者：
Leck, C.
影响因子：
6.3
作者：
Mauritsen, T.;Sedlar, J.;Swietlicki, E.
通讯作者：
Swietlicki, E.