PostDoctoral Research Fellowship

博士后研究奖学金

• 批准号: 1103423
• 负责人: Kerri Pratt
• 金额: $ 13.92万
• 依托单位: Pratt Kerri A
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-12-15 至 2013-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1103423&HistoricalAwards=false
• 关键词: PostDoctoral; Research; Fellowship

Arctic climate change is resulting in rising temperatures and decreasing sea ice extent. Interactions between sea ice and the atmosphere lead to unique halogen chemistry, resulting in significant losses of atmospheric ozone and mercury. However, significant uncertainty remains in our understanding of the spatial distribution and conditions associated with Arctic ozone depletion events, due to measurement challenges. This research project involves analysis of in-situ ozone and BrO data from long-term O-buoy measurements across the Arctic Ocean, as well as field campaign measurements in Barrow, Alaska. O-buoy data will enable development and evaluation of both simple (zero- and one-dimensional) air-sea ice models, as well as regional atmospheric chemistry models to examine the oxidation pathways in the Arctic. This will improve our ability to predict the impacts of future climate and sea ice changes on the Arctic atmosphere. This integrated understanding is essential to better inform decision-makers about future Arctic system changes. Given the importance of educating the public about science, and climate change in particular, public outreach activities will be integrated into this research in the form of elementary school activities and through the Purdue Climate Change Research Center.

北极气候变化导致气温上升和海冰范围缩小。 海冰与大气之间的相互作用导致独特的卤素化学反应，导致大气臭氧和汞的大量损失。 然而，由于测量挑战，我们对北极臭氧消耗事件相关空间分布和条件的理解仍然存在很大的不确定性。 该研究项目涉及对北冰洋长期 O 浮标测量以及阿拉斯加巴罗现场活动测量的现场臭氧和 BrO 数据进行分析。 O浮标数据将有助于开发和评估简单（零维和一维）海冰模型以及区域大气化学模型，以检查北极的氧化途径。 这将提高我们预测未来气候和海冰变化对北极大气影响的能力。 这种综合理解对于让决策者更好地了解未来北极系统的变化至关重要。 鉴于对公众进行科学教育，特别是气候变化教育的重要性，公共宣传活动将以小学活动的形式并通过普渡大学气候变化研究中心纳入这项研究。