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.

拟议的研究将填补有关北极海冰，冰川和气候状况如何在过去12，000年中发生变化的知识差距。随着海冰的刺伤，北极海的变化正在发生巨大的变化，并在夏季和冬季都在北方撤退。这种海冰撤退会极大地影响北极海洋周围的地质的气候条件。这些陆地上的冰盖逐渐暴露于更温暖的气候条件，触发表面熔化和质量损失的增加，也使冰盖撤退。我的研究计划ICE2SEA的长期视野是研究ICE在目前的冰川时期如何影响气候系统。我将在冰核科学方面使用我的专业知识，并将其与曼尼托巴大学地球观察科学中心发现的海冰专业知识相结合，通过与与冰和气候相关的研究小组合作，组成了一支强大的加拿大研究团队。长期的目标是利用过去的知识来改善关于气候变化和冰冻圈将来如何改变北部条件的预测。在第一个五年中，我将使用Axel Heiberg Island上的Müllers冰盖的冰核钻探工具来形成研究计划。该计划将在加拿大建立新的创新研究领域，并培训新一代的HQP。五年研究计划的具体问题是： 1）在过去的几千年中，海冰状况如何变化？ 2）在过去的几千年中，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？主要的假设是，在深层冰芯中发现的卤素溴可以告知北极海洋冰的过去延伸。 ICE2SEA的首届五年计划将包括一名PDF，三个博士学位，一名钻机和几个硕士和本科级别的项目。这些项目将与其他大学的研究人员共同监督，以在HQP环境中形成强大的国家和国际网络。 Axel Heiberg Island位于加拿大北部，我与Grise Fjord社区（Aujuittuq）接触至关重要，可以提供当地知识。我将在这里雇用个人进行现场工作，并将寻找本科，研究生，博士的博士后职位的北部申请。对海冰对气候的依赖性的了解对加拿大引起了人们的浓厚兴趣。温度与现在的8000至5000年前的气候一样温暖，因此此时的海冰范围将告知我们未来的变暖气候。对于北部社区来说，这是非常重要的知识，对于在北极海洋中开放航线的愿景至关重要。