What is the solar influence on climate? Overview of activities during CAWSES-II

Seppälä, Annika; Matthes, Katja; Randall, C. E.; Mironova, Irina

doi:10.1186/s40645-014-0024-3

Cited by 73 publications

(78 citation statements)

References 87 publications

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“…On the other hand, very high-energy particles originating from solar eruptions or ICME shocks easily cross the magnetic shield and can reach lower layers of the atmosphere, the mesosphere, at about 50-90 km altitude and down to the stratosphere at about 20-50 km (e.g., Seppälä et al 2014). Most of these particles are SEPs accelerated at CME-driven shock waves either near the solar surface or further out in interplanetary space.…”

Section: Icmes/sheaths As Drivers Of Atmospheric Effectsmentioning

confidence: 99%

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Coronal mass ejections and their sheath regions in interplanetary space

Kilpua

Koskinen

Pulkkinen

2017

Living Rev Sol Phys

356

360

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Interplanetary coronal mass ejections (ICMEs) are large-scale heliospheric transients that originate from the Sun. When an ICME is sufficiently faster than the preceding solar wind, a shock wave develops ahead of the ICME. The turbulent region between the shock and the ICME is called the sheath region. ICMEs and their sheaths and shocks are all interesting structures from the fundamental plasma physics viewpoint. They are also key drivers of space weather disturbances in the heliosphere and planetary environments. ICME-driven shock waves can accelerate charged particles to high energies. Sheaths and ICMEs drive practically all intense geospace storms at the Earth, and they can also affect dramatically the planetary radiation environments and atmospheres. This review focuses on the current understanding of observational signatures and properties of ICMEs and the associated sheath regions based on five decades of studies. In addition, we discuss modelling of ICMEs and many fundamental outstanding questions on their origin, evolution and effects, largely due to the limitations of single spacecraft observations of these macro-scale structures. We also present current understanding of space weather consequences of these large-scale solar wind structures, including effects at the other Solar System planets and exoplanets. We specially emphasize the different origin, properties and consequences of the sheaths and ICMEs.

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Section: Icmes/sheaths As Drivers Of Atmospheric Effectsmentioning

confidence: 99%

“…The inclusion of the precipitating radiation belt high-energy electron population is one of the key current efforts in climate models (e.g., Andersson et al 2014;Seppälä et al 2014). This emphasizes the importance of ICMEs for understanding atmospheric chemistry and resulting climatological effects.…”

Section: Icmes/sheaths As Drivers Of Atmospheric Effectsmentioning

confidence: 99%

Coronal mass ejections and their sheath regions in interplanetary space

Kilpua

Koskinen

Pulkkinen

2017

Living Rev Sol Phys

356

360

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“…The relatively short timescale and the apparent upward propagation of this solar-wind-induced effect is in contrast to the downward propagation, on a timescale of months, of meteorological effects to the lower troposphere from the stratosphere due to other mechanisms associated with solar variability involving stratospheric ultraviolet (UV) radiation (e.g., Gray et al, 2010;Ineson et al, 2011;Ermolli et al, 2013) and precipitating energetic particles. Energetic particles, in the form of galactic cosmic rays, solar proton events (SPEs), and energetic electron precipitation from the aurora and the radiation belts associated with geomagnetic storms and substorms, are able to affect atmospheric chemical composition, dynamics, and climate (e.g., Rozanov et al, 2012;Seppälä et al, 2014;Mironova et al, 2015, and the paper by Georgieva et al in this issue).…”

Section: The Mansurov Effectmentioning

confidence: 99%

Solar wind-atmospheric electricity-cloud microphysics connections to weather and climate

Lam

Tinsley

2016

Journal of Atmospheric and Solar-Terrestrial Physics

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting galley proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. ABSTRACT: We review recent research articles that present observations of the large-scale day-to-day dynamic tropospheric response to changes in the downward current density J z of the global atmospheric electric circuit (GEC). The evidence for the global circuit downward current density, J z , causing changes in atmospheric dynamics is now even stronger than as reviewed by Tinsley (Reports on Progress in Physics volume 71, 2008). We consider proposed mechanisms for these responses, and suggest future directions for research.

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“…A importância das forçantes de origem solar na variabilidade climática regional são cada vez mais evidentes [69,70]. Embora, ainda existam muitas incertezas, em relação aos mecanismos de transferências de energia no sistema Sol-Terra, tem-se observado um melhoramento na repre- sentação destes forçantes do ponto de vista regional [71].…”

Section: A Irradiância Solar E O Clima Da Terraunclassified

A irradiância solar: conceitos básicos

Gómez‬

Carlesso

Vieira

et al. 2018

Rev. Bras. Ensino Fís.

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A radiação solar ou irradiância constitui um importante fator que influencia os processos químicos, físicos e biológicos na Terra. Essa radiação emitida por diferentes camadas da atmosfera solar afeta a atmosfera superior e também o clima da Terra. Neste artigo serão descritos os conceitos físicos sobre a irradiância total e irradiância espectral. Essas medidas são fundamentais para a modelagem do clima da Terra. Também alguns modelos utilizados são descritos. A relação entre a irradiância solar e o clima da Terra será discutido. Palavras-chave: Sol, Irradiância, Radiação eletromagnética, Fenômenos solares, Clima da Terra.The solar radiation or irradiance influences chemical, physical and biological processes on the Earth. This radiation emitted from the solar atmosphere through different layers can affect the Earth's upper atmosphere and climate. An overview about the Sun were presented. The physical description of Total Solar Irradiance (TSI) and Solar Spectral Irradiance (SSI) are explained. Some models of irradiance are briefly described. The relationship between the solar irradiance and the Earth's climate were discussed. Keywords: Sun, Irradiance, Electromagnetic radiation, Solar features, Earth's climate. IntroduçãoA energia solar esta diretamente relacionada com os processos químicos, físicos e biológicos, ou seja, esta associada com a vida na Terra. As variações dessa energia têm impacto na atmosfera e no clima da Terra em largas escalas de tempo [1]. Além disso, a química da atmosfera superior, da ionosfera e da estratosfera também são influenciadas [2,3].A radiação solar é o fluxo de energia emitida pelo Sol e transmitida sob a forma de radiação eletromagnética. Durante muitos anos foi considerada uma constante em torno de 1. A obtenção de valores da irradiância solar com alta precisão são importantes nos modelos climáticos e atmosféricos [5]. Apesar da radiação solar ser a principal fonte de energia da Terra o clima também é influenciado pelo efeito estufa, emissões de vulcões [6,7], raios cósmi-* Endereço de correspondência: jemfisi@gmail.com.cos [8] e energia radiante da supernova [9]. Além disso, mudanças de longo prazo na órbita da Terra modulam a irradiância solar que atinge o topo da atmosfera. As variações nas inclinações orbitais também podem causar pequenas diferenças na TSI [10].O principal motivo para abordar o estudo da irradiân-cia solar é conhecer qual é a verdadeira influência dela, nas variações do clima da Terra já que elas afetam nossa vida diária. Assim, como determinar qual é a influência dos processos humanos (efeito estufa e emissões de CO 2 , por exemplo) no clima e sua variabilidade. Esse trabalho fornece uma visão geral desde os conceitos básicos da radiação solar, a estrutura do Sol, a geração de campo magnético do Sol, a descrição física da irradiância solar, modelos de reconstrução da irradiância e a relação da irradiância solar e o clima da Terra. Conceitos básicos da radiação solarA radiação eletromagnética está relacionada com cargas elétricas aceleradas que irradiam en...

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What is the solar influence on climate? Overview of activities during CAWSES-II

Cited by 73 publications

References 87 publications

Coronal mass ejections and their sheath regions in interplanetary space

Coronal mass ejections and their sheath regions in interplanetary space

Solar wind-atmospheric electricity-cloud microphysics connections to weather and climate

A irradiância solar: conceitos básicos

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