Investigation of Tidal Aliasing and Climate Scale Processes in Sea Ice and Their Influence on Oceanic-Atmospheric Heat/Momentum Balances...
海冰潮汐混叠和气候尺度过程及其对海洋-大气热量/动量平衡的影响的研究...
基本信息
- 批准号:9818645
- 负责人:
- 金额:$ 32.17万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:1998
- 资助国家:美国
- 起止时间:1998-10-01 至 2002-09-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
9818645HansonThis proposed work is a study of how satellite data can be used to improve our understanding of the process by which the movement of the arctic and antarctic sea ice cover affects the exchange of heat and momentum between the atmosphere and the ocean. The key variable is differential motion of the sea ice: i.e. convergence, divergence, and shear, which produces areas of open water and significantly increases the atmosphere-ocean rates of exchange.The effort is concerned with short-period or high frequency variations in the differential motion, that are so rapid that they cannot be resolved by successive satellite passes. The bulk of satellite-derived ice motion data is on a three-day time scale with current capabilities extending down to one day. This is insufficient to resolve motions resulting from tides and inertial oscillations that have a period less than one day.This proposal uses an imaginative statistical approach to recover the amplitude of these oscillations from a data record whose sampling rate is once per day or lower. It is based on the premise that the power of tidal and inertial oscillations appears in the statistics of the data record, with the additional hypothesis that if the frequency of these oscillation is well-defined (as is the case for tides and inertial oscillations) then their effect is limited to a specific and predictable part of the observed data record. The approach will be tested by comparing observations from the Weddell Sea Ice Camp, where the power of tidal and inertial oscillation was measured directly, with synchronous satellite imagery, where the power of these oscillations will be recovered statistically.Potentially the techniques derived from this project will allow more accurate determinations of the structure of the antarctic atmosphere and oceans by introducing better and more realistic numerical approximations to sea ice formation and water mass modification processes that have global connections.
9818645汉森这项拟议的工作是研究如何利用卫星数据来提高我们对北极和南极海冰覆盖的运动影响大气和海洋之间的热量和动量交换的过程的理解。 关键变量是海冰的差异运动:即辐合、辐散和切变,这会产生开阔水域,并显著增加大气-海洋交换率。这项工作涉及差异运动中的短周期或高频变化,这些变化如此之快,以至于无法通过连续的卫星通过来解决。 大部分卫星获得的冰的运动数据是在三天的时间尺度上,目前的能力可扩展到一天。 这不足以解决周期小于一天的潮汐和惯性振荡引起的运动,本提案采用一种富有想象力的统计方法,从采样率为每天一次或更低的数据记录中恢复这些振荡的振幅。 它基于这样的前提:潮汐和惯性振荡的力量出现在数据记录的统计中,附加的假设是,如果这些振荡的频率是明确定义的(就像潮汐和惯性振荡的情况一样),那么它们的影响就限于观测数据记录的特定和可预测的部分。 该方法将通过比较威德尔海冰营地的观测结果进行测试,在那里直接测量潮汐和惯性振荡的力量,同步卫星图像,这些振荡的功率将在统计上恢复。从这个项目中得到的技术可能会通过引入更好和更现实的数值方法来更准确地确定南极大气和海洋的结构。近似海冰的形成和具有全球联系的水团变化过程。
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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Brian Hanson其他文献
SAFETY AND EFFICACY OF LIQUID NITROGEN SPRAY CRYOTHERAPY AS AN ADJUNCT IN TREATING REFRACTORY BENIGN UPPER GASTROINTESTINAL STRICTURES: A RETROSPECTIVE MULTICENTER EXPERIENCE
- DOI:
10.1016/j.gie.2024.04.2276 - 发表时间:
2024-06-01 - 期刊:
- 影响因子:
- 作者:
Frances Dang;Amir Rumman;David Cheung;Peter Nguyen;Amirali Tavangar;Neil Jariwalla;Christopher Bouvette;Neal Shah;Neal Dharmadhikari;Pranay Srivastava;Frank Gress;Vladimir Kushnir;Mohammad Bilal;Brian Hanson;Jason Samarasena - 通讯作者:
Jason Samarasena
SAFETY AND EFFICACY OF LIQUID NITROGEN SPRAY CRYOTHERAPY AS AN ADJUNCT IN TREATING REFRACTORY BENIGN UPPER GASTROINTESTINAL STRICTURES: A RETROSPECTIVE MULTICENTER EXPERIENCE
- DOI:
10.1016/j.gie.2024.04.2413 - 发表时间:
2024-06-01 - 期刊:
- 影响因子:
- 作者:
Frances Dang;Amir Rumman;David Cheung;Peter Nguyen;Amirali Tavangar;Neil Jariwalla;Christopher Bouvette;Neal Shah;Neal Dharmadhikari;Pranay Srivastava;Frank Gress;Vladimir Kushnir;Mohammad Bilal;Brian Hanson;Jason Samarasena - 通讯作者:
Jason Samarasena
QUALITY OF LIFE OUTCOMES IN PATIENTS UNDERGOING PERCUTANEOUS AND ENDOSCOPIC GALLBLADDER DRAINAGE: A PROOF-OF-CONCEPT STUDY
- DOI:
10.1016/j.gie.2024.04.934 - 发表时间:
2024-06-01 - 期刊:
- 影响因子:
- 作者:
Jenson Phung;Natalie Wilson;Carl Olson;Amir Sultan Seid;Taylor Bowler;Vijay Are;Rahul Karna;Jake Theis;Brian Hanson;Mohammad Bilal - 通讯作者:
Mohammad Bilal
ENDOSCOPIST-RATED UTILITY OF TATTOO PLACEMENT FOR IDENTIFYING COLORECTAL POLYPS REFERRED FOR ENDOSCOPIC RESECTION
- DOI:
10.1016/j.gie.2024.04.1577 - 发表时间:
2024-06-01 - 期刊:
- 影响因子:
- 作者:
Natalie Wilson;Rahul Karna;Andrew Reinink;Brian Hanson;Mohammad Bilal - 通讯作者:
Mohammad Bilal
HEALTHCARE RESOURCE UTILIZATION IN PATIENTS WITH PERCUTANEOUS AND ENDOSCOPIC GALLBLADDER DRAINAGE FOR ACUTE CHOLECYSTITIS: A COMPARATIVE ANALYSIS
- DOI:
10.1016/j.gie.2024.04.1173 - 发表时间:
2024-06-01 - 期刊:
- 影响因子:
- 作者:
Natalie Wilson;Jenson Phung;Taylor Bowler;Amir Sultan Seid;Vijay Are;Rahul Karna;Carl Olson;Jake Theis;Brian Hanson;Mohammad Bilal - 通讯作者:
Mohammad Bilal
Brian Hanson的其他文献
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{{ truncateString('Brian Hanson', 18)}}的其他基金
Water Soluble Phosphines for Organometallic Chemistry and Catalysis in the Aqueous Phase
用于水相有机金属化学和催化的水溶性膦
- 批准号:
9319881 - 财政年份:1994
- 资助金额:
$ 32.17万 - 项目类别:
Continuing Grant
Relation Between Water Input, Water Pressure, Surface Speed and Basal Till Deformation, Storglaciaren
输入水量、水压、表面速度与基底变形之间的关系,Storglaciaren
- 批准号:
9224175 - 财政年份:1993
- 资助金额:
$ 32.17万 - 项目类别:
Continuing Grant
Immobilization of Homogeneous Catalysts: Supported Aqueous Phases, Ion Exchange Resins, and Membranes
均相催化剂的固定化:负载水相、离子交换树脂和膜
- 批准号:
9101846 - 财政年份:1991
- 资助金额:
$ 32.17万 - 项目类别:
Continuing Grant
Industry/University Cooperative Research: Dynamics and Surface Chemistry of Metal Carbonyls (Materials Research)
产学合作研究:羰基金属的动力学和表面化学(材料研究)
- 批准号:
8518364 - 财政年份:1986
- 资助金额:
$ 32.17万 - 项目类别:
Continuing Grant
Dynamics and Surface Chemistry of Metal Carbonyls (MaterialsResearch)
羰基金属的动力学和表面化学(材料研究)
- 批准号:
8211111 - 财政年份:1983
- 资助金额:
$ 32.17万 - 项目类别:
Continuing Grant
1978 National Needs Postdoctoral Fellowship Program
1978年 国家急需博士后资助计划
- 批准号:
7815673 - 财政年份:1978
- 资助金额:
$ 32.17万 - 项目类别:
Fellowship Award
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