Ship-Board Atmospheric Sounding over the Kuroshio Extension: A Supplement to CLIVAR KESS

黑潮延伸区的船上大气探测：CLIVAR KESS 的补充

• 批准号: 0454390
• 负责人: Shang-Ping Xie
• 金额: --
• 依托单位: University of Hawaii
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-04-01 至 2009-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0454390&HistoricalAwards=false
• 关键词: Ship; Board; Atmospheric; Sounding; over

The Kuroshio Extension (KE) is a region where the deep winter mixed layer allows locally and remotely forced subsurface variability to affect sea surface temperature (SST) on decadal and longer timescales. The Kuroshio Extension System Study (KESS) is a field experiment to "study the dynamic and thermodynamic processes governing the variability of, and the interaction between, the Kuroshio Extension and the recirculation gyre". While recent studies suggest that SST fronts in the KE region affect surface wind, cloud, atmospheric baroclinicity and storm track, few in-situ observations exist in this region that are necessary to test hypotheses regarding these ocean-atmospheric influences.The PIs will launch Global Positioning System sondes on the KESS cruises planned for May/June 2005 and 2006, acquiring vertical profiles of temperature, humidity, pressure and wind velocity. These observations, together with already funded KESS oceanographic component, will yield joint ocean-atmospheric transects of temperature and flow velocity from 1 km below the sea surface to 20 km above. Analysis of these field measurements combined with satellite observations will offer new insights into:(i) atmospheric boundary-layer adjustment to sharp SST fronts;(ii) the formation and variations of fog and stratus cloud deck north of the KE; and,(iii) ocean's role in maintaining the atmospheric storm track. The research expands the scope of KESS by adding atmospheric sounding that allows the study of KE's effect on regional climate. Shipboard GPS-sonde observations require little additional ship time, and the logistics and feasibility have been established in cruise surveys the PI and his collaborators successfully conducted over the region in the 2003-04 winter. The observations and analysis will improve our understanding of KE's influence on and interaction with the atmosphere. Broader impacts. The Meiyu-Baiu front is the most important climate phenomenon for East Asia. This research offers a better description and understanding of the ocean's role in formation and variations of this phenomenon, thereby helping enhance society's ability to plan and respond to its weather and climate. The resultant observational data, will be disseminated to the community via the KESS project website and the University of Hawaii (UH) Asian-Pacific Data Research Center's data servers. The research fosters interdisciplinary and international collaborations between oceanographers and meteorologists, and between US and Japanese scientists.

黑杂延伸（KE）是一个深处冬季混合层允许局部和远程强迫地下变异性会影响际际且较长时间尺度上的海面温度（SST）的区域。 Kuroshio扩展系统研究（KESS）是一个现场实验，用于“研究了有关黑发扩展和再循环Gyre之间可变性以及相互作用的动态和热力学过程”。虽然最近的研究表明，KE区域的SST前线会影响表面风，云，大气的斜压力和风暴轨迹，但该地区几乎没有原位观察结果是测试有关这些海洋 - 大气影响的假设所必需的。定位系统在计划于2005年5月/6月和2006年5月的Kess Cruises上进行，从而获得了温度，湿度，压力和风速的垂直轮廓。这些观察结果以及已经资助的KESS海洋学组件将产生温度和流速从海面下方1公里到上方20 km的温度和流速速度的关节。对这些现场测量结果与卫星观测的分析将为：（i）大气边界层对尖锐的SST前部的调整；（ii）KE以北的雾和Stratus云甲板的形成和变化；以及（iii）海洋在维持大气风暴轨道中的作用。该研究通过添加大气发声来扩大KESS的范围，从而可以研究KE对区域气候的影响。船上GPS-Sonde的观察几乎不需要额外的时间，并且在Cruise Surveys PI和他的合作者在2003 - 04年冬季成功进行了后勤和可行性。观察和分析将提高我们对KE对大气的影响和相互作用的理解。更广泛的影响。 Meiyu-baiu阵线是东亚最重要的气候现象。这项研究对海洋在这种现象的形成和变化中的作用提供了更好的描述和理解，从而有助于增强社会计划和应对天气和气候的能力。由此产生的观察数据将通过KESS项目网站和夏威夷大学（UH）亚洲太平洋数据研究中心的数据服务器传播到社区。该研究促进了海洋学家与气象学家之间以及我们与日本科学家之间的跨学科和国际合作。