Resonance Properties of the Ross Ice Shelf, Antarctica, as a Factor in Regional Wave Interaction between Ocean and Atmosphere

南极洲罗斯冰架的共振特性作为海洋与大气之间区域波相互作用的一个因素

• 批准号: 1643119
• 负责人: Nikolay Zabotin
• 金额: $ 60万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-07-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1643119&HistoricalAwards=false
• 关键词: Resonance; Properties; Ross; Ice; Shelf

Recent theoretical and experimental studies indicated that over a wide range of altitudes and for periods from a few minutes to several hours a significant portion of the waves activity observed in the upper atmosphere/thermosphere is due to acoustic gravity waves radiated by infragravity waves generated in the ocean. Studying this impressive gravity wave activity over the Antarctic, where proximity of the Ross Ice Shelf makes it very special, is the goal of this project. The ocean's infragravity waves can excite the fundamental mode and low-order oscillations of the Ross Ice Shelf at its resonance frequencies, thus creating standing wave structures throughout the entire atmosphere. It is likely that this effect was recently detected using LIDAR observations at McMurdo. This project will support the training and education of a graduate student.This award will allow scientists to study the wave coupling of the Southern Ocean (via the Ross Ice Shelf) to the upper atmosphere/thermosphere. This study will involve theoretical assessment of the coupling phenomena and comparing theory with data collected by a unique combination of instruments deployed in the Ross Ice Shelf area: the NSF-supported network of seismographs and microbarometers on the Ross Ice Shelf, the infrasound station near McMurdo, and the Dynasonde recently installed at the Korean Antarctic Station Jang Bogo.

最近的理论和实验研究表明，在高度范围很广的情况下，在几分钟到几小时的时间内，在高层大气/热层观察到的波活动的很大一部分是由于海洋中产生的亚重力波辐射的重力声波造成的。研究南极洲上空令人印象深刻的重力波活动是该项目的目标，在那里，罗斯冰架的接近使其非常特殊。海洋的亚重力波可以激发罗斯冰架的共振频率的基本模式和低阶振荡，从而在整个大气中产生驻波结构。这种效应很可能是最近在麦克默多使用激光雷达观测发现的。该项目将支持一名研究生的培训和教育，使科学家能够研究南大洋（通过罗斯冰架）与高层大气/热层的波耦合。 这项研究将涉及对耦合现象进行理论评估，并将理论与部署在罗斯冰架地区的独特仪器组合收集的数据进行比较：由国家科学基金会支持的罗斯冰架地震仪和微气压计网络、麦克默多附近的次声站和最近安装在韩国南极站Jang Bogo的Dynasonde。

项目成果

Diffraction of acoustic-gravity waves in the presence of a turning point

存在转折点时声重力波的衍射

• DOI: 10.1121/1.4955283
• 发表时间: 2016
• 期刊: The Journal of the Acoustical Society of America
• 作者: Godin, Oleg A.

Ground-based observations for the upper atmosphere at Jang Bogo Station, Antarctica: preliminary results

南极洲张保皋站高层大气地面观测：初步结果

• DOI: 10.18520/cs/v115/i9/1674-1678
• 发表时间: 2018
• 期刊: Current Science
• 影响因子: 1
• 作者: Kim, Ji Eun;Kim, Jeong-Han;Jee, Geonhwa;Lee, Changsup;Kwon, Hyuck-Jin;Ham, Young-Bae;Bullett, Terence;Wu, Qian;Mabie, Justin;Zabotin, Nikolay
• 通讯作者: Zabotin, Nikolay

Resonance excitation of atmospheric waves by vibration of the ground, ocean surface, and ice shelves

地面、海洋表面和冰架的振动引起大气波的共振激发

• 发表时间: 2018
• 期刊: Geophysical research abstracts
• 作者: Goin, O. A.;Zabotin, N.
• 通讯作者: Zabotin, N.

Atmospheric Wave Radiation by Vibrations of an Ice Shelf

冰架振动引起的大气波辐射

• DOI: 10.1029/2023jd039121
• 发表时间: 2023
• 期刊: Journal of Geophysical Research: Atmospheres
• 作者: Godin, Oleg A.;Zabotin, Nikolay A.;Zabotina, Liudmila
• 通讯作者: Zabotina, Liudmila

An Observed Trend Between Mid‐Latitudes Km‐Scale Irregularities and Medium‐Scale Traveling Ionospheric Disturbances

中纬度公里级不规则性与中级电离层行进扰动之间观察到的趋势

• DOI: 10.1029/2021rs007396
• 发表时间: 2022
• 期刊: Radio Science
• 影响因子: 1.6
• 作者: Helmboldt, J. F.;Zabotin, N.
• 通讯作者: Zabotin, N.