Co-ordinated Airborne Studies in the Tropics - CAST

热带地区协调机载研究 - CAST

基本信息

批准号：
NE/J006238/1
负责人：
Andrew Vick
金额：
$ 128.85万
依托单位：
Science and Technology Facilities Council
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2012
资助国家：
英国
起止时间：
2012 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=NE%2FJ006238%2F1
关键词：
Co ordinated Airborne Studies Tropics

项目摘要

The unique research capability of the Global Hawk, with ultra-long flights possible in the upper troposphere and lower stratosphere, provides a major new opportunity to advance atmospheric science. In response to the NERC/STFC/NASA collaborative initiative, we have assembled an experienced UK team that proposes to execute a research programme covering fundamental science and technology development, which, by working with the Global Hawk, will radically enhance our future research capabilities.The Tropical Tropopause Layer (TTL) is a crucial region for chemistry/climate interactions. Building on work we have already done in this area , we will collaborate with NASA's ATTREX programme to study the TTL over the Pacific Ocean and South East Asia, with new measurements and analysis. We will address fundamental questions related to atmospheric composition, radiation and transport. The TTL controls the transport of water vapour, the crucial radiative gas, into the stratosphere; we will advance understanding of the role of sub-visible cirrus in water vapour processes. The TTL is also the main route by which very short-lived halogen species, which represent a large uncertainty in future stratospheric ozone evolution, enter the stratosphere. We will improve knowledge of the budgets of these gases and of their chemical transformation and transport through the TTL, including the role of convective transport into the TTL and the subsequent routes for transport from the TTL to the lower stratosphere. Improving representation of these processes in global chemistry/climate models is a key aim.In order to study these processes, The FAAM BAe-146 will be deployed in Guam in Jan/Feb 2014. It will fly coordinated flights with the Global Hawk which will making measurements in the same period in the TTL over the West Pacific. Detailed involvement in all phases of the collaborative missions with ATTREX will enhance the UK potential for future research using the Global Hawk, including advanced capability in mission planning and methodologies for complex, real-time data analysis. The aircraft measurements will be interpreted in conjunction with ground-based and balloon-based measurements of very short-lived halogen species and ozone, using a complementary group of regional high resolution models, global composition models and a global cirrus model.We will develop and test two new instruments and new software for the payload/mission-scientist interface, which are ideally suited for the capabilities of the Global Hawk. One new instrument will allow quantification in the TTL of the important physical properties of sub- and super-micron sized particles, allowing new information about clouds and radiation. We will develop a new short-wave IR spectrometer to measure greenhouse (CO2, CH4, and H2O) and other (CO) gases in the lower atmosphere by remote sensing, taking advantage of the very long flights in the upper troposphere and lower stratosphere. Both instruments will be flight-tested in CAST.

全球鹰的独特研究能力，在对流层上层和下层平流层中实现了超长的飞行，为推进大气科学提供了一个主要的新机会。为了回应NERC/STFC/NASA合作计划，我们组建了一支经验丰富的英国团队，该团队提议执行涵盖基本科学和技术发展的研究计划，该计划通过与全球鹰的合作将从根本上增强我们未来的研究能力。在我们已经在该领域完成的工作的基础上，我们将与NASA的Attrex计划合作，研究太平洋和东南亚的TTL，并进行新的测量和分析。我们将解决与大气组成，辐射和运输有关的基本问题。 TTL控制水蒸气的运输，即关键的辐射气体进入平流层。我们将提高对亚可见卷卷在水蒸气过程中的作用的理解。 TTL也是一条主要途径，通过将非常短的卤素物种（代表未来平流层臭氧进化中的巨大不确定性）进入平流层的主要途径。我们将提高人们对这些气体的预算及其化学转化和通过TTL的运输的了解，包括对流运输到TTL的作用以及随后从TTL到下层平流层运输的途径。在全球化学/气候模型中改善这些过程的表示是一个关键目的。在研究这些过程中，FAAM BAE-146将于2014年1月/2月在关岛部署。它将与全球鹰一起进行协调的飞行，该航班将在西太平洋的同一时期进行测量。详细参与与Attrex的协作任务的各个阶段将提高英国使用全球鹰的未来研究潜力，包括在任务规划和方法论中进行的高级能力进行复杂的实时数据分析。飞机的测量将与一个互补的区域高分辨率模型，全球组成模型以及全球cirrus模型一起使用基于地面和气球的非常短的卤素物种和臭氧的基于地面和气球的测量。我们将开发和测试两个新的仪器和新的仪器，以实现有效载荷/宣传界面的新仪器和新的软件。一种新的仪器将允许在亚和超级微米大小的颗粒的重要物理特性的TTL中进行定量，从而允许有关云和辐射的新信息。我们将通过遥感中的遥感中的温室（CO2，CH4和H2O）和其他（CO）气体开发出一种新的短波红外光谱仪，以利用对流层上层和下层平流层的长途飞行。两种乐器都将在演员阵容中进行测试。