Collaborative Research: Assessment of Groundwater Inputs into Coastal Waters of Hawaii via Natural Tracers and Aerial Imagery

合作研究：通过自然示踪剂和航空图像评估夏威夷沿海水域的地下水输入

• 批准号: 0451386
• 负责人: William Burnett
• 金额: $ 20.64万
• 依托单位: Florida State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-02-01 至 2010-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0451386&HistoricalAwards=false
• 关键词: Collaborative; Research; Assessment; Groundwater; Inputs

ABSTRACTOCE-0451379Over the past few years, some methods have been developed to assess submarine groundwater discharge (SGD) on a local scale. However, methodologies for regional scale evaluations (i.e., 100 km) have not occurred. For this reason, a scientist from the University of Hawaii, in collaboration with a scientist from Florida State University, plan to develop a three tiered approach to assess SGD into the sea at regional scales using the following methods: (1) high resolution, temperature calibrated (0.1'C) geo-corrected aerial infrared surveys; (2) ground-truthing selected sites via natural geochemical tracers (223Ra, 224Ra, 227Th, 228Th); and (3) upscaling the results via typology. The PIs have selected the Kona coast for their study site because of its high apparent SGD, focused nature of the discharge, and lack of surface drainage. Once discharge is established, fluxes of nitrogen species, total phosphorus, inorganic phosphorus, silica, and total chlorophyll will be calculated for the Kona coast and placed within a regional and global context by comparison to stream fluxes. As regards broader impacts, this study will provide scientists with a new method to assess submarine groundwater discharge on a regional scale, as well as yield new insights into the impact of submarine groundwater discharge on water budgets and biogeochemical cycles in the coastal ocean. The benefits of this study will extend from oceanographers to hydrologist to coastal and water resource managers. Students from both the University of Hawaii and Florida State University will participate in the research study.

摘要-0451379在过去的几年中，已经开发了一些方法来评估海底地下水排放（SGD）在局部规模上。 但是，尚未发生用于区域尺度评估的方法（即100公里）。 因此，夏威夷大学的一名科学家与佛罗里达州立大学的一位科学家合作，计划开发一种三级方法，使用以下方法在区域尺度上评估SGD进入海洋：（1）高分辨率，温度，温度，温度校准（0.1'C）地理校正的空中红外调查； （2）通过自然地球化学示踪剂（223ra，224ra，227th，228th）铺设地面的选定位置； （3）通过类型学提高结果。 PIS之所以选择Kona Coast作为其研究地点，是因为其明显的SGD，排放的重点和缺乏表面排水。 一旦确定排出，将计算Kona海岸的氮，总磷，无机磷，二氧化硅和总叶绿素的通量，并与流量磁通相比，将其放置在区域和全球环境中。 关于更广泛的影响，这项研究将为科学家提供一种新的方法来评估海底地下水在区域尺度上，并产生对海底地下水排放对水预算和沿海海洋生物地球化学周期的影响的新见解。 这项研究的好处将从海洋学家到水文学家到沿海和水资源经理。 来自夏威夷大学和佛罗里达州立大学的学生将参加该研究。