The Hydroclimate of Antarctica
南极洲的水文气候
基本信息
- 批准号:1341497
- 负责人:
- 金额:$ 42.11万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2014
- 资助国家:美国
- 起止时间:2014-02-15 至 2018-01-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The Antarctic atmospheric water cycle couples freshwater input to the Southern Ocean. The strength of ocean convective overturning (the meridonal overturning circulation) and its influence on the upwelling of heat is governed in large part by these freshwater sources. Understanding the water cycle is fundamental to estimating ocean heat uptake in the Southern Ocean and determining why Antarctic sea ice has expanded in the last ~30 years, notably different from the Arctic. The hydrologic cycle is in turn strongly coupled to the climate. Precipitation influences the albedo of sea ice, depending on whether it falls as snow or rain, and contributes freshwater to the Southern Ocean, while sea ice and sea surface temperature influence evaporation and atmospheric circulation and their association with moisture and heat transport to Antarctica.A series of sensitivity experiments are proposed to gain understanding of the system and test means of improving model biases. The ultimate integration will utilize these model improvements to attribute Southern Ocean and Antarctic climate change over the last ~30 yearsThe project advances understanding of past and future climate change from rising greenhouse gas concentrations and ozone depletion. The results will inform future projections of Antarctic ice mass balance and the resulting global sea level rise.
南极大气水循环将淡水输入耦合到南大洋。海洋对流翻转(经向翻转环流)的强度及其对热量上涌的影响在很大程度上取决于这些淡水来源。了解水循环对于估计南大洋的海洋热量吸收以及确定为什么南极海冰在过去30年中扩大,特别是与北极不同,是至关重要的。水文循环反过来又与气候密切相关。通过一系列敏感性试验,了解了海冰对南冰洋的影响,并检验了改善模式偏差的方法。最终的整合将利用这些模式的改进,归因于南大洋和南极气候变化在过去的30年,该项目的进步,过去和未来的气候变化的温室气体浓度上升和臭氧消耗的理解。研究结果将为未来对南极冰量平衡和由此导致的全球海平面上升的预测提供信息。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Cecilia Bitz其他文献
Record Low Antarctic Sea Ice in Austral Winter 2023: 1 Mechanisms and Predictability
2023 年澳大利亚冬季南极海冰创历史新低:1 机制和可预测性
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
Zachary Espinosa;E. Blanchard‐Wrigglesworth;Cecilia Bitz - 通讯作者:
Cecilia Bitz
Associations between Total and Speciated Pollen Counts and Several Morbidity Measures in the Contiguous United States from 2008 to 2015
- DOI:
10.1016/j.jaci.2017.12.945 - 发表时间:
2018-02-01 - 期刊:
- 影响因子:
- 作者:
Jeremy J. Hess;Fiona Lo;Claudia L. Brown;Kristie L. Ebi;Arie Manangan;George Luber;Paul J. Schramm;Lewis Ziska;Cecilia Bitz;Shubhayu Saha - 通讯作者:
Shubhayu Saha
Equity in Arctic Observing
北极观测的公平性
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
An. T. Nguyen;Kirstin Schulz;Margaret Rudolf;Noor Johnson;Alice Bradley;Cecilia Bitz;Harmony Wayner;H. Eicken;Emily Lescak - 通讯作者:
Emily Lescak
Cecilia Bitz的其他文献
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{{ truncateString('Cecilia Bitz', 18)}}的其他基金
Constraining Arctic wave-ice interactions and the sea ice floe-size distribution
限制北极波冰相互作用和海冰浮冰尺寸分布
- 批准号:
2237964 - 财政年份:2023
- 资助金额:
$ 42.11万 - 项目类别:
Standard Grant
Collaborative Research: Advancing knowledge of Arctic sea ice interactions with tropopause polar vortices and Arctic cyclones
合作研究:增进对北极海冰与对流层顶极涡和北极气旋相互作用的了解
- 批准号:
2141538 - 财政年份:2022
- 资助金额:
$ 42.11万 - 项目类别:
Standard Grant
2018 Graduate Climate Conference: Pack Center, University of Washington, November 2-4 2018
2018 年研究生气候会议:华盛顿大学帕克中心,2018 年 11 月 2-4 日
- 批准号:
1833749 - 财政年份:2018
- 资助金额:
$ 42.11万 - 项目类别:
Standard Grant
The Role of Wave-sea Ice Floe Interactions in Recent Antarctic Sea Ice Change
波浪-海浮冰相互作用在近期南极海冰变化中的作用
- 批准号:
1643431 - 财政年份:2017
- 资助金额:
$ 42.11万 - 项目类别:
Standard Grant
Collaborative Research: Type 1: LOI: L02170303: Arctic Climate Response to Decadal Changes in Radiative Forcing from Aerosols and Ozone
合作研究:类型 1:LOI:L02170303:北极气候对气溶胶和臭氧辐射强迫的十年变化的响应
- 批准号:
1049002 - 财政年份:2011
- 资助金额:
$ 42.11万 - 项目类别:
Standard Grant
High-resolution climate modeling: The influence of weather and sea ice noise on polar climates
高分辨率气候模型:天气和海冰噪声对极地气候的影响
- 批准号:
0938204 - 财政年份:2009
- 资助金额:
$ 42.11万 - 项目类别:
Standard Grant
Short-term predictability of Arctic climate
北极气候的短期可预测性
- 批准号:
0909313 - 财政年份:2009
- 资助金额:
$ 42.11万 - 项目类别:
Standard Grant
Deciphering the Antarctic MSA-sea Ice Link with a Combined Regional Forecast and Atmospheric Chemistry Model
利用区域预报和大气化学组合模型破译南极 MSA-海冰联系
- 批准号:
0739127 - 财政年份:2008
- 资助金额:
$ 42.11万 - 项目类别:
Continuing Grant
The Mutual Interaction Between Ice Production and Ocean Heat Transport in a Greenhouse Warming Scenario
温室变暖情景下产冰与海洋热传输之间的相互作用
- 批准号:
0454843 - 财政年份:2005
- 资助金额:
$ 42.11万 - 项目类别:
Standard Grant
Collaborative Research: Rapic Climate Change due to Sea Ice Dynamics in the North Atlantic and Arctic Oceans
合作研究:北大西洋和北冰洋海冰动力学引起的剧烈气候变化
- 批准号:
0502204 - 财政年份:2005
- 资助金额:
$ 42.11万 - 项目类别:
Continuing Grant
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Dark Data from the White Continent: New Light on Five Decades of Vertebrate Paleontology Collections from the Triassic Fremouw Formation of Antarctica
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2313242 - 财政年份:2024
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