ICE2SEA

基本信息

批准号：
RGPIN-2020-05671
负责人：
DahlJensen, Dorthe
金额：
$ 5.46万
依托单位：
University of Manitoba
依托单位国家：
加拿大
项目类别：
Discovery Grants Program - Individual
财政年份：
2020
资助国家：
加拿大
起止时间：
2020-01-01 至 2021-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=717912
关键词：
ICE2SEA

项目摘要

The proposed research will fill a knowledge gap on how the Arctic sea ice, glaciers, and climate conditions have changed through the present Interglacial period, the last 12,000 years. The Arctic Ocean is undergoing dramatic changes as sea ice thins and retreats further north during both summer and winter seasons. This sea ice retreat greatly affects the climatic conditions of the landmasses surrounding the Arctic Ocean. Ice caps situated on these landmasses are gradually being exposed to warmer climatic conditions, triggering an increase in surface melting and a loss of mass, making the ice caps retreat as well. The long-term vision of my research program ICE2SEA is to investigate how ice has influenced the climate system during the present interglacial period. I will use my expertise in ice core science and combine it with the sea ice expertise found in the Centre for Earth Observation Science at the University of Manitoba to form a strong Canadian research team through collaboration with Canadian universities with ice- and climate-related research groups. The long-term goal is to use the knowledge from the past to improve predictions on how the changing climate and cryosphere will change conditions in the North in the future. For the first five-year period, I will use the instrument of ice-core drilling through the Müllers Ice Cap on Axel Heiberg Island to form a research program. The program will build new and innovative research fields in Canada and train a new generation of HQP. The specific questions for the five-year research program are: 1) How did sea ice conditions change in the Arctic Ocean during past millennia ? 2) What climatic conditions did the Arctic ice caps experience during past millennia ? 3) What is the relationship between glaciers, sea ice change, and climate change ? The main hypothesis is that the halogen Bromine found in a deep ice core can inform on the past extension of sea ice in the Arctic Ocean. The inaugural five-year program in ICE2SEA will include one PDF, three PhDs, one driller, and several Master's- and undergraduate-level projects. The projects will be co-supervised with researchers from other universities to form a strong national and international network for the HQP environment. Axel Heiberg Island is in Northern Canada and I have contact with the Grise Fjord community (Aujuittuq) were important traditional and local knowledge is available. I will hire personal here for the field work and will look for Northern applicants for the undergraduate, graduate, PhD's an PostDoc positions. Knowledge of the dependence of sea ice on climate is of strong interest for Canada. Temperatures were as warm as present 8000 to 5000 years ago in the Climatic Optimum so the sea ice extent at this time will inform us on what to expect in the future warming climate. This is very important knowledge for the Northern communities, and has importance for the visions of opening of shipping routes in the Arctic Ocean.

拟议的研究将填补关于北极海冰、冰川和气候条件在过去 12,000 年间冰期期间如何变化的知识空白，随着海冰变薄并进一步向北退缩，北冰洋正在经历巨大的变化。夏季和冬季，海冰退缩极大地影响了北冰洋周围陆地的气候条件，这些陆地上的冰盖逐渐暴露在温暖的气候条件下，导致地表面积增加。融化和质量损失，使冰盖也退缩。我的研究项目 ICE2SEA 的长期愿景是研究冰如何影响当前间冰期的气候系统，我将利用我在冰芯科学方面的专业知识，并将其与地球观测中心的海冰专业知识相结合。曼尼托巴大学科学部将通过与加拿大大学与冰和气候相关的研究小组合作，组建一支强大的加拿大研究团队，其长期目标是利用过去的知识来改进对气候变化和气候变化的预测。冰冻圈将改变环境未来的北方。在第一个五年期间，我将使用阿克塞尔·海伯格岛穆勒斯冰盖的冰芯钻探仪器来形成一个研究计划，该计划将在加拿大建立新的创新研究领域并培养新一代。 HQP 五年研究计划的具体问题是： 1) 在过去的几千年里，北冰洋的海冰状况发生了怎样的变化？ 2）在过去的几千年里，北极冰盖经历了哪些气候条件？ 3）冰川、海冰变化和气候变化之间有什么关系？主要假设是，在深层冰芯中发现的卤素溴可以了解北冰洋海冰过去的延伸情况。 ICE2SEA 的首个五年计划将包括一个 PDF、三个博士、一个钻工以及多个硕士和本科水平的项目。这些项目将与其他大学的研究人员共同监督，以形成强大的国内和国际网络。 Axel Heiberg 岛位于加拿大北部，我与 Grise Fjord 社区 (Aujuittuq) 取得了联系，了解重要的传统和当地知识，我将在这里雇用人员进行实地工作，并寻找北部申请人。为本科生、研究生、博士生提供博士后职位。加拿大对了解海冰对气候的依赖性非常感兴趣。8000 至 5000 年前的气候最佳时期，气温与现在一样温暖，因此此时的海冰范围将告诉我们未来变暖的预期。这对于北方社区来说是非常重要的知识，对于开辟北冰洋航线的愿景也具有重要意义。