CAREER: Connections between Stratospheric Perturbations and Climate Change - Research and Teaching Integration

职业：平流层扰动与气候变化之间的联系 - 研究与教学一体化

• 批准号: 0449996
• 负责人: Eugene Cordero
• 金额: $ 62.68万
• 依托单位: San Jose State University Foundation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-02-15 至 2012-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0449996&HistoricalAwards=false
• 关键词: CAREER; Connections; between; Stratospheric; Perturbations

The quasi-biennial oscillation (QBO) is a dramatic shift in atmospheric dynamic properties in the stratosphere, e.g., winds, on an approximately 2-year cycle. This Career Development Grant (CDG) addresses two key objectives: (1) to develop a better understanding of the physical mechanisms responsible for the QBO, and how variations in the QBO affect current and future climate, and (2) to improve student understanding of issues related to climate change through the development and implementation of effective pedagogy. The research component of the CDG seeks to identify and understand forcing mechanisms responsible for QBO variability and its influence on climate. The investigation will utilize various modeling tools including NCAR's Whole Atmosphere Community Climate Model (WACCM) to identify the relationship between large-scale planetary waves, stratosphere/troposphere coupling and the QBO. The scientific research includes: a) a physically based investigation of how various forcing mechanisms affect the QBO; b) an analysis of how stratospheric climate and stratosphere/troposphere coupling are affected by perturbations to the QBO as simulated by the WACCM; and c) estimates of how QBO properties in a doubled carbon dioxide atmosphere will change, and the feedbacks these changes may have on future climate. The educational component of the CDP seeks to develop more effective teaching paradigms for climate change. The first educational activity aims to identify student misconceptions about climate change through a series of surveys and interviews. These will guide the subsequent activities that include the development of a learning module on climate change suitable for a variety of teaching environments, and the development of a summer institute on climate change for high school teachers. The development of effective teaching materials will use an inquiry-based learning environment that utilizes climate model science and data generated from the research activities. Broader impacts: The expected outcomes of this research include a greater understanding of the processes responsible for QBO variability and an improved knowledge of how perturbations to the stratosphere affect both stratospheric and tropospheric climate. The educational outcomes include advances in both student and teacher understanding of climate change topics, improvement in the teaching of climate change in high schools, and an improvement in the recruitment of underrepresented students to pursue careers in climate related sciences.

准两年振荡（QBO）是平流层大气动力学性质的一种剧烈变化，例如，风，以大约两年为一个周期。该职业发展补助金（CDG）解决了两个关键目标：（1）更好地理解QBO的物理机制，以及QBO的变化如何影响当前和未来的气候，以及（2）通过开发和实施有效的教学法来提高学生对气候变化相关问题的理解。CDG的研究部分旨在识别和理解QBO变率及其对气候的影响的强迫机制。调查将利用各种建模工具，包括NCAR的全大气社区气候模型（WACCM），以确定大尺度行星波，平流层/对流层耦合和QBO之间的关系。科学研究包括：a）各种强迫机制如何影响QBO的基于物理的调查; B）分析平流层气候和平流层/对流层耦合如何受到WACCM模拟的QBO扰动的影响;以及c）估计在二氧化碳加倍的大气中QBO特性将如何变化，以及这些变化可能对未来气候的反馈。该项目的教育部分力求为气候变化制定更有效的教学模式。第一项教育活动旨在通过一系列调查和访谈，找出学生对气候变化的误解。这将指导随后的活动，包括开发适合各种教学环境的气候变化学习模块，以及为高中教师开发气候变化暑期研究所。有效教材的编写将采用一种探究式学习环境，利用气候模型科学和研究活动产生的数据。更广泛的影响：这项研究的预期成果包括更好地了解负责QBO变化的过程和平流层扰动如何影响平流层和对流层气候的知识。教育成果包括学生和教师对气候变化主题的理解有所提高，高中气候变化教学有所改进，招聘人数不足的学生从事气候相关科学职业的情况有所改善。