PostDoctoral Research Fellowship

北极气候变化导致气温上升和海冰范围减少。 海冰和大气之间的相互作用导致独特的卤素化学，导致大气臭氧和汞的大量损失。 然而，由于测量方面的挑战，我们对北极臭氧消耗事件的空间分布和相关条件的理解仍存在很大的不确定性。 该研究项目涉及分析来自北冰洋长期O型浮标测量的现场臭氧和溴化氧数据，以及阿拉斯加巴罗的实地活动测量。 O-buoy数据将有助于开发和评估简单的（零维和一维）气-海冰模型以及区域大气化学模型，以研究北极的氧化途径。 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。 这种综合了解对于更好地向决策者提供有关未来北极系统变化的信息至关重要。 鉴于教育公众科学的重要性，特别是气候变化，公众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。

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.