Relationship Between Mesoscale Environment and Hawaiian Rain Band (II)

中尺度环境与夏威夷雨带的关系（二）

• 批准号: 9629886
• 负责人: Yi-Leng Chen
• 金额: $ 29.26万
• 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: 1997
• 资助国家: 美国
• 起止时间: 1997-01-01 至 2000-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9629886&HistoricalAwards=false
• 关键词: Relationship; Between; Mesoscale; Environment; Hawaiian

9629886 Chen The interactions of atmospheric flows with mountains is an important issue in atmospheric sciences. Orography plays a role in both local weather as well as influencing the larger scale flow. The isolation of the mountainous Island of Hawaii provides a natural laboratory for studies of the impacts of orography. In 1990 a cooperative project among several researchers, the Hawaiian Rainband Project (HaRP), was executed to study the influence of the island on local weather and fundamental mountain/atmospheric flow interactions. The Principal Investigator will continue his analysis of data from the HaRP with a focus on furthering understanding of the impact of local environmental conditions on the formation of rainbands. A specific emphasis will be the evolution of downslope flow on the windward side of the island of Hawaii throughout the night for relatively dry and relatively rainy cases. In addition to downslope flow evolution over land, the deepening of the downslope flow in the Hilo Bay area, the extension of offshore flow over the ocean before sunrise, and the effects of clouds and rains on the downslope flow evolution will be studied. Furthermore, the Principal Investigator will examine the meteorological conditions that affect the daily amounts of nocturnal rainfall west of Hilo and the early morning rainfall along the coast. ***

小行星9629886 大气流动与山脉的相互作用是大气科学中的一个重要问题。 地形学戏剧 在当地天气中的作用以及影响更大规模的流动。 多山的夏威夷岛与世隔绝，为研究地形影响提供了天然实验室。 1990年，几位研究人员合作开展了一个项目，即夏威夷雨带项目（HaRP），以研究夏威夷岛对当地天气和基本山脉/大气流相互作用的影响。 首席研究员将继续分析HaRP的数据，重点是进一步了解当地环境条件对雨带形成的影响。 一个具体的重点将是在相对干燥和相对多雨的情况下，夏威夷岛的迎风侧的下坡流的演变。 除了陆地上的下坡流演变外，还将研究希洛湾地区下坡流的加深、日出前近海流在海洋上的延伸以及云和雨对下坡流演变的影响。 此外，首席研究员将检查影响希洛以西夜间降雨量和沿海沿着清晨降雨量的气象条件。 ***