Collaborative Research: Development of a Sensor Array for In-situ Real-time Measurement of Deep Ocean and Hydrothermal Vent Chemistry

研究海洋，特别是深海或热液喷口附近的动态生物地球化学过程是一项艰巨的挑战，需要有能力在极端条件下对各种化学物种进行真实的现场监测。了解这些动态过程对于我们预测和/或减轻自然和人类对海洋影响的长期影响的能力至关重要。建议开发和演示一个原型离子选择性电极（伊势）传感器阵列，能够在海洋极端深度和喷口温度附近同时提供各种离子化学物质的现场实时测量。拟议的传感器阵列将基于伊势传感器阵列，ISE传感器阵列是作为2007年凤凰火星使命的一部分在火星表面设计、建造、测试和成功使用的，用于分析含有土壤样品的水溶液中的离子种类。将为海洋科学界提供一个新的工具，对海水中的各种化学物质进行现场实时绘图。由此产生的传感器阵列设备也将用于各种相关学科的研究人员，用于研究或监测其他水体，如湖泊，河口，地下水，饮用水和河流。 开发一种创新的研究工具，以便能够对海洋沃茨的化学特性进行现场时空监测，这是对环境和分析化学领域的巨大贡献。显然，如果该项目成功，将能够绘制海洋环流图，测量海洋中的二氧化碳水平，并研究这些对气候变化研究的影响。该推广计划将使教师和学生参加夏季实地研究，以监测波士顿湾和/或特拉华州河口的查尔斯河口的沃茨，以及缺氧的特拉华州内陆海湾。这些将提供巨大的无形的，但可证明的研究成果和影响。三名研究生参与了这个项目。此外，该项目将为来自广泛学科的本科生提供参与现场仪器设计和开发的机会。高中生也将参与，通过参加课堂实地测试和夏季实地考察，参与该项目支持的研究生。还提到了通过在教室播放录像进行的公共宣传。

The study of dynamic biogeochemical processes in the ocean, especially in the deep ocean or near hydrothermal vents, is a daunting challenge and requires the ability to monitor a variety of chemical species in-situ in real time under extreme conditions. Understanding these dynamic processes is critical for our ability to predict and/or mitigate the long term effects of natural and human impacts on the oceans. The propose to develop and demonstrate a prototype ion selective electrode (ISE) sensor array capable of providing simultaneous in-situ real-time measurements of a variety of ionic chemical species at extreme depths and near vent temperatures in the ocean. The proposed sensor array will be based on the ISE sensor array that was designed, built, tested, and successfully used on the surface of Mars as part of the 2007 Phoenix Mars Mission, to analyze for ionic species in an aqueous solution containing a soil sampleThe longer term objective of this initial effort is to enable follow-on research that, with improved detection limits and selectivity, will provide the ocean sciences community with a new tool for in-situ real-time mapping of a broad range of chemical species in seawater. The resulting sensor array device will also be of use to researchers in a variety of related disciplines for studies or monitoring of other bodies of water such as lakes, estuaries, ground water, drinking water, and rivers.Broader Impacts: The development of an innovative research tool to enable in-situ temporal and spatial monitoring of the chemical properties of oceanic waters represents an enormous contribution to the fields of environmental and analytical chemistry. Clearly, this project if successful will enable a charting of ocean circulation, measurements of carbon dioxide levels in the ocean, and studies of the impacts of these on climate change research. The outreach program will engage teachers and students in summer field studies to monitor waters at the mouth of the Charles River in Boston Bay and/or the Delaware Estuary, and the anoxic Delaware Inland Bays. These will provide enormous intangible, yet demonstrable outcomes and impacts of the research. Three graduate students are involved in this project. In addition, the project will provide opportunities for undergraduate student from a broad range of disciplines to participate in the design and development of in situ instrumentation. High-school students will also be involved, through the participation of classrooms to field tests and to a summer field trip, involving the graduate students supported by the project. Public outreach is also mentioned, through the realization of videos by classrooms.