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，以提供遵循等性，恒定压力表面或其他选择的策略的能力。 除了通过全球定位系统（GPS）派生的位置数据提供轨道信息外，智能气球还将带有压力，温度和湿度传感器，并且这些数据将与位置数据一起传输。 通过包括压力和温度传感器和压力泵，可以对智能气球进行编程，以跟踪沿等性，潮湿的等质，等异，等压力表面。 智能气球的压载可以使用充满空气的恒定体积，加压的气球内的氦气，可扩展的气球来实现。 如果在实验过程中需要更高的高度，则会从加压外部气球中释放出空气。 这种动作使充满氦气的内部气球可以扩展并取代较重的空气。 如果需要较低的海拔高度，则将外部空气泵入外部气球中，这会增加其密度，并导致气球封装在海拔高度下降。 这种能力开发的优点在于，可以在许多观察应用中使用仪器的智能气球，包括：拉格朗日观察策略或规定的发声策略，而无需通过接地造成气球损失的威胁。 聪明的气球利用了最近的技术进步，为大气科学研究社区提供了具有成本效益的新数据收集能力。 在研究对流层和平流层的大气化学等各种研究问题的现场实验期间，可以部署此类气球或四根。 前七个小时的原位观察数据以UHF的五分钟间隔与四元的GPS位置一起传输。 然后，这些DA TA可以被接收器的船上研究平台拦截，距离四个tetroon约一百英里。