Collaborative Research: Continuation of Development and Application of AO-FVCOM to Improve Understanding of Arctic Changes

合作研究：继续开发和应用AO-FVCOM以提高对北极变化的了解

• 批准号: 1203393
• 负责人: Changsheng Chen
• 金额: $ 35.77万
• 依托单位: University of Massachusetts, Dartmouth
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-08-01 至 2017-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1203393&HistoricalAwards=false
• 关键词: Collaborative; Research; Continuation; Development; Application

The PIs have successfully developed a high-resolution unstructured-grid, finitevolumecoupled ice-ocean model for the Arctic Ocean (AO-FVCOM). AO-FVCOM has beenvalidated via comparison to observed data under climatological conditions. Now they seek support to work on the following three tasks: 1) Calibrate and validate AO-FVCOM using observational data collected in the Canada Arctic Basin and its marginal Chukchi and Beaufort Sea. This region is chosen for intense study because it has the most pronounced loss of sea ice extent and thickness in recent years and its unprecedented coverage by multiyear national and international field and modeling studies. 2) Apply the new calibrated and validated AV-FVCOM to investigate the following scientific topics: a) improve understanding of the circulation of the Alaskan Coastal Current and Pacific and Atlantic waters in the study region, b) revisit scientific questions and methodological problems associated with shelf-basin exchange (SBE) processes in the region, and c) apply AO-FVCOM to investigate transformations and transports of fresh water (both liquid and solid) from freshwater sources (Bering Strait, rivers, central Beaufort Gyre, precipitation) towards the North Atlantic Ocean via Fram and Canadian Archipelago Straits. 3) Train a Ph.D. student in advanced Arctic Ocean modeling.Successful completion of this project will provide an additional protocol for modeling Arctic Ocean processes. It will also advance understanding of the circulation and mixing processes in the Arctic Ocean, processes which will grow in socio-economic importance with increasing ice loss and development activities in this part of the globe.

研究所成功地开发了一个高分辨率的北冰洋非结构网格有限体积耦合冰-海模型（AO-FVCOM）。AO-FVCOM已通过与气候条件下的观测数据进行比较得到验证。现在，他们寻求支持，以开展以下三项任务：1）使用在加拿大北极盆地及其边缘楚科奇海和博福特海收集的观测数据校准和验证AO-FVCOM。之所以选择这一区域进行深入研究，是因为近年来海冰范围和厚度的损失最为显著，而且多年来国家和国际实地和模拟研究的覆盖面前所未有。2)应用新校准和验证的AV-FVCOM研究以下科学主题：a）增进对研究区域内阿拉斯加沿岸流和太平洋及大西洋沃茨环流的了解，B）重新审视与该区域陆架-盆地交换（SBE）过程有关的科学问题和方法问题，应用AO-FVCOM研究淡水的转化和输送（液体和固体）淡水来源（白令海峡、河流、博福特环流中心、降水）经弗拉姆和加拿大群岛海峡向北大西洋移动。3)培养博士本项目的成功完成将为北冰洋过程的模拟提供一个额外的协议。 它还将促进对北冰洋环流和混合过程的了解，随着地球仪这一部分的冰损失和开发活动的增加，这些过程的社会经济重要性将增加。