大气和海洋科学哲学博士-冰层，冰川学和气候

冰冻圈涵盖了存在冰的陆地环境中的各种系统。其中包括冰川，冰盖，海冰和季节性积雪。气象厅探索了南极和格陵兰岛大冰盖的质量变化。此外，我们监测极地海冰的变化，并研究冰，海洋和大气之间的相互作用。在过去的二十年中，格陵兰和南极冰盖造成的质量损失增加了两倍，占这段时期以来全球海平面上升的四分之一左右。大部分贡献主要归因于格陵兰冰原大量的质量损失。根据政府间气候变化专门委员会（第四次评估报告），大型冰盖的大量贡献表明，由于对冰盖对变暖的动态响应缺乏了解，对未来在温暖的气候下海平面预测的不确定性最大。气候。
The Department of Atmospheric and Oceanic Science offers graduate study leading to the Master of Professional Studies, Master of Science, and Doctor of Philosophy degrees. Coursework in atmospheric and oceanic sciences is also offered at the upper division and graduate level as a service to other campus graduate programs. The educational program is broadly based and involves many applications of the mathematical, physical and applied sciences that characterize modern atmospheric sciences and physical oceanography, including climate and earth system science, and multidisciplinary studies of the interrelationship among the atmosphere, the oceans, the land, and the biota. The Department's advanced degree programs are designed to prepare students for participation in contemporary research in the atmospheric and oceanic science. Research specializations include: atmospheric dynamics, atmospheric chemistry, physical oceanography, air pollution, atmospheric radiative transfer, remote sensing of the atmosphere, ocean, and land, climate variability and change, data assimilation, numerical weather prediction, severe storms, surface-atmosphere, ocean-atmosphere and biosphere-atmosphere interactions, and earth system modeling. The curriculum includes a set of Core courses to provide a fundamental background in atmospheric and oceanic dynamics, physical meteorology and atmospheric chemistry, earth system science and climate, as well as advanced specialized courses. Supervised research using state-of-the-art facilities then prepares the students for future contributions in their chosen field.<br><br>The Cryosphere encompasses various systems in the terrestrial environment where ice is present. This includes, glaciers, ice sheets, sea ice, and seasonal snow cover. Department explores mass changes in the world's large ice sheets, Antarctic and Greenland. Additionally we monitor changes in polar sea ice, and study interactions between ice, oceans, and the atmosphere.Mass loss from the Greenland and Antarctic ice sheets have tripled over the last two decades and constitutes about one-quarter of the observed global sea-level rise since during this time frame. Much of that contribution is largely due to substantial mass loss from the Greenland Ice Sheet. Mass contributions from the large ice sheets according to the Intergovernmental Panel on Climate Change (4th Assessment Report) identifies the largest uncertainty to future sea-level projections in a warmer climate due to a lack of understanding in the dynamic response of ice sheets to a warmer climate.