Development of a "Smart" Tetroon Capability

开发“智能”Tetroon 功能

• 批准号: 9419536
• 负责人: Steven Businger
• 金额: $ 27.87万
• 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: 1995
• 资助国家: 美国
• 起止时间: 1995-03-15 至 1998-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9419536&HistoricalAwards=false
• 关键词: Development; Smart; Tetroon; Capability

This research will develop and test "smart" balloons whose altitude can be controlled to provide the capability to follow isentropic, constant pressure surfaces or other chosen strategies. In addition to providing track information through Global Positioning System (GPS) derived position data, the smart balloons will carry pressure, temperature and humidity sensors, and these data will be transmitted along with the position data. By including pressure and temperature sensors and a pressure pump, the smart balloon can be programmed to track along isentropic, moist isentropic, isopycnic or constant pressure surfaces. The ballasting of the smart balloon will be achieved using an helium filled, expandable balloon inside an air-filled constant-volume, pressurized balloon. If a higher altitude is required during an experiment, air is released from the pressurized outer balloon. This action allows the helium-filled inner balloon to expand and take the place of the heavier released air. If a lower altitude is desired, outside air is pumped into the outer balloon, which increases its density and causes the balloon package to decrease in altitude. The virtue in development of this capability is that the instrumented smart balloons can be utilized in a number of observational applications including: Lagrangian observational strategies, or in prescribed sounding strategies, without the threat of balloon loss through groundings. Smart balloons capitalize on recent technological advances to provide a cost-effective, new data gathering capability for the atmospheric sciences research community. Such balloons, or tetroons, can be deployed during field experiments directed at investigation a variety of research problems ranging from storm structure to atmospheric chemistry in the troposphere and stratosphere. In situ observational data for the previous seven hours are transmitted at five minute intervals on UHF along with GPS position of the tetroon. These da ta can then be intercepted by receivers on-board research platforms within approximately one hundred miles of the tetroon.

这项研究将开发和测试“智能”气球，其高度可以控制，以提供遵循等熵、恒压表面或其他选定策略的能力。 除了通过全球定位系统（GPS）导出的位置数据提供轨道信息外，智能气球还将携带压力、温度和湿度传感器，这些数据将与位置数据一起沿着传输。 通过包括压力和温度传感器以及压力泵，智能气球可以被编程为沿着沿着等熵、潮湿等熵、等密度或恒压表面跟踪。 智能气球的压载将使用充满氦气的可膨胀气球在充满空气的恒定体积加压气球内实现。 如果在实验过程中需要更高的高度，则从加压的外气球释放空气。 这个动作允许充氦的内部气球膨胀并取代较重的释放空气。 如果需要较低的高度，则将外部空气泵入外部气球，这增加了其密度并导致气球包的高度降低。 开发这种能力的优点是，装有仪表的智能气球可以用于许多观测应用，包括：拉格朗日观测策略，或规定的探测策略，而不会因着陆而造成气球丢失的威胁。 智能气球利用最新的技术进步，为大气科学研究界提供具有成本效益的新数据收集能力。 这种气球，或tetroons，可以部署在现场实验，旨在调查各种研究问题，从风暴结构到对流层和平流层的大气化学。 前7小时的现场观测数据每隔5分钟通过超高频沿着与全球定位系统一起传送。 这些数据可以被位于tetroon大约100英里范围内的研究平台上的接收器截获。