| 项目编号: | 1560908
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| 项目名称: | Autonomous Ice Mass Balance Buoys for an Arctic Observing Network: A Continuation Proposal |
| 作者: | Donald Perovich
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| 承担单位: | Dartmouth College
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| 批准年: | 2016
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| 开始日期: | 2016-05-01
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| 结束日期: | 2019-04-30
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| 资助金额: | 800409
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Polar
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| 英文关键词: | ice cover
; mass balance
; change
; arctic ocean
; ice
; network
; amount
; observation
; impact
; imb
; science program
; imb network
; sea ice thickness
; ice growth
; decadal time scale
; dartmouth college?s women
; net warming
; network coverage
; particular interest
; key climate change indicator
; pronounced indicator
; important component
; drift ice
; future change
; global environment
; primary objective
; international collaboration
; oceanographic instrument
; arctic basin
; global temperature
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| 英文摘要: | Changes in the extent and thickness of the Arctic Ocean?s sea ice cover are among the most pronounced indicators of our warming global temperatures. In order to improve predictions that enable us to anticipate and plan for future change in ice cover on seasonal to decadal time scales, we need to understand the processes driving the observed change. An area of particular interest is the temperature-driven mass balance of the ice cover. The mass balance is the balance between the amount of ice growth in the winter and the amount of melt in the summer. Mass balance is a key climate change indicator since it combines the impact of heating and cooling at the top and bottom of the ice. If there is net warming over time, then there will be thinning of the ice. Conversely, net cooling leads to thicker ice. The objective of our project is to contribute to the Arctic Observing Network by maintaining a network of autonomous ice mass balance (IMB) buoys, installed in the drift ice of the Arctic Ocean. The observations from these buoys enable us to explore what changes in sea ice thickness are taking place and how these changes occur, thereby improving our understanding of this complex and important component of the global environment. Broader Impacts include contributing to Dartmouth College?s Women in Science Program and an ?adopt a buoy? program for middle school students.
The primary objectives of our project are to: 1) procure and deploy a minimum of 5 IMB buoys per year, to increase network coverage, and 2) process and archive the data from these buoys to ensure that they are fully, freely, openly, and immediately accessible to all researchers and interested users. A key to achieving the first objective is an advancement in buoy technology, creating a version of the IMB that costs less to produce, is easier to deploy, and is designed for deployment in the increasingly prevalent seasonal sea ice cover. We will continue to strategically deploy the IMBs in coordination with complementary atmospheric and oceanographic instruments to optimize the observations throughout the Arctic Ocean. We will also continue to build on our strong national and international collaborations, to maximize the extent of the IMB network across the Arctic Basin and to minimize the logistic costs associated with deployment. The end result will be an integrated atmosphere-ice-ocean observing array providing a comprehensive description of the response of the ice cover to atmospheric and oceanic forcing. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/92389
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Donald Perovich. Autonomous Ice Mass Balance Buoys for an Arctic Observing Network: A Continuation Proposal. 2016-01-01.
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