Geomagnetically Induced Currents from the Sun to the Power Grid最新文献_第2页

INDEX 指数

Geomagnetically Induced Currents from the Sun to the Power Grid Pub Date : 2019-09-16 DOI: 10.1002/9781119434412.index

引用次数: 0

Geomagnetically Induced Currents from Extreme Space Weather Events 极端空间天气事件的地磁感应电流

Geomagnetically Induced Currents from the Sun to the Power Grid Pub Date : 2019-09-16 DOI: 10.1002/9781119434412.ch11

L. Winter

引用次数: 3

An Introduction to Geomagnetically Induced Currents 地磁感应电流简介

Geomagnetically Induced Currents from the Sun to the Power Grid Pub Date : 2019-09-16 DOI: 10.1002/9781119434412.ch1

C. Ngwira, A. Pulkkinen

{"title":"An Introduction to Geomagnetically Induced Currents","authors":"C. Ngwira, A. Pulkkinen","doi":"10.1002/9781119434412.ch1","DOIUrl":"https://doi.org/10.1002/9781119434412.ch1","url":null,"abstract":"Earth‐directed space weather is a serious concern that is recognized as one of the top priority problems in today’s society. Space weather‐driven geomagnetically induced currents (GICs) can disrupt operation of extended electrically conducting technological systems. This threat to strategic technological assets, like power grids, oil and gas pipelines, and communication networks, has rekindled interest in extreme space weather. To improve national preparedness, it is critical that we understand the physical processes related to extreme events in order to address key national and international objectives. This paper serves to provide a basic introduction to space weather and GICs, and highlights some of the major science challenges the GIC community continues to face. 1 Department of Physics, The Catholic University of America, Washington, DC, USA 2 Goddard Space Flight Center, Space Weather Laboratory, National Aeronautics and Space Administration, Greenbelt, MD, USA 3 Now at Atmospheric and Space Technology Research Associates, Louisville, CO, USA Key Points • Geomagnetically induced currents (GICs) is a space weather‐driven phenomena. • It is a threat to strategic technological assets, such as power grids, oil and gas pipelines, and communication networks. • This paper serves to provide basic introduction on space weather and GICs, and the major science challenges the GIC community continues to face. 0004382678.INDD 3 8/23/2019 6:47:15 PM CO PY RI GH TE D M AT ER IA L 4 GEOMAGNETICALLY INDUCED CURRENTS FROM THE SUN TO THE POWER GRID chapter provides a high‐level summary of space weather and GICs. While some of the topics touched on cover a broad range of space weather domains, the discussions are oriented/biased towards the geophysical facet of GICs. For more insight on specific GIC aspects, the reader is urged to consult other sections of this volume. 1.2. THE SPACE WEATHER CHAIN The Sun is the primary source of all space weather in the heliosphere. Sudden, violent eruptions of solar material from the Sun’s atmosphere (the corona) called coronal mass ejections (CMEs), mark the beginning of major space weather events that eventually produce geomagnetic storms (disturbances) in the Earth’s upper atmosphere. The Sun’s activity is closely governed by the solar activity cycle, which has an average length of about 11 years. The cycle is defined by the number of visible active sunspots on the solar surface. During solar maximum period when solar activity is high, the Sun can launch multiple CMEs towards Earth per day. A CME can be perceived as a cloud of plasma with the solar magnetic field known as the interplanetary magnetic field (IMF) embedded within it. Upon arriving at Earth, CMEs interact with the magnetosphere, a low‐ density partially ionized region around the upper atmosphere dominated by Earth’s magnetic field. This interaction then triggers geomagnetic disturbances (GMDs) that lead to violent global magnetic field variations. Orientation ","PeriodicalId":280545,"journal":{"name":"Geomagnetically Induced Currents from the Sun to the Power Grid","volume":"275 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132699815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Mitigating Power System Response to GICs in Known Networks 缓解已知网络中电力系统对集成电路的响应

Geomagnetically Induced Currents from the Sun to the Power Grid Pub Date : 2019-09-16 DOI: 10.1002/9781119434412.ch13

M. Kazerooni, T. Overbye

引用次数: 1