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Revised historical solar irradiance forcing. / Schmutz, W.; Rozanov, E.; Shapiro, A.; Usoskin, I.G.; Beer, J.; Tagirov, R.; Peter, T.

In: ASTRONOMY & ASTROPHYSICS, Vol. 615, 85, 18.07.2018.

Research output: Contribution to journal › Article › peer-review

Harvard

Schmutz, W, Rozanov, E, Shapiro, A, Usoskin, IG, Beer, J, Tagirov, R & Peter, T 2018, 'Revised historical solar irradiance forcing', ASTRONOMY & ASTROPHYSICS, vol. 615, 85. https://doi.org/10.1051/0004-6361/201731199

APA

Schmutz, W., Rozanov, E., Shapiro, A., Usoskin, I. G., Beer, J., Tagirov, R., & Peter, T. (2018). Revised historical solar irradiance forcing. ASTRONOMY & ASTROPHYSICS, 615, [85]. https://doi.org/10.1051/0004-6361/201731199

Vancouver

Schmutz W, Rozanov E, Shapiro A, Usoskin IG, Beer J, Tagirov R et al. Revised historical solar irradiance forcing. ASTRONOMY & ASTROPHYSICS. 2018 Jul 18;615. 85. https://doi.org/10.1051/0004-6361/201731199

Author

Schmutz, W. ; Rozanov, E. ; Shapiro, A. ; Usoskin, I.G. ; Beer, J. ; Tagirov, R. ; Peter, T. / Revised historical solar irradiance forcing. In: ASTRONOMY & ASTROPHYSICS. 2018 ; Vol. 615.

BibTeX

@article{be0daa4ce3dc4f7fbfb4d99d0cb6e52f,
title = "Revised historical solar irradiance forcing",
abstract = "Context. There is no consensus on the amplitude of historical solar forcing. The estimated magnitude of the total solar irradiance (TSI) difference between the Maunder minimum and the present time ranges from 0.1 to 6 W m(-2) making the simulation of the past and future climate uncertain. One reason for this disagreement is the applied evolution of the quiet Sun brightness in solar irradiance reconstruction models. This work addresses the role of the quiet Sun model choice and updated solar magnetic activity proxies on the solar forcing reconstruction.Aims. We aim to establish a plausible range for the solar irradiance variability on decadal to millennial timescales.Methods. The spectral solar irradiance (SSI) is calculated as a weighted sum of the contributions from sunspot umbra, sunspot penumbra, faculae, and quiet Sun, which are pre-calculated with the NLTE Spectral SYnthesis code (NESSY). We introduce activity belts of the contributions from sunspots and faculae and a new structure model for the quietest state of the Sun. We assume that the brightness of the quiet Sun varies in time proportionally to the secular (22-yr smoothed) variation of the solar modulation potential.Results. A new reconstruction of the TSI and SSI covering the period 6000 BCE - 2015 CE is presented. The model simulates solar irradiance variability during the satellite era well. The TSI change between the Maunder and recent minima ranges between 3.7 and 4.5 Wm(-2) depending on the applied solar modulation potential. The implementation of a new quietest Sun model reduces, by approximately a factor of two, the relative solar forcing compared to the largest previous estimation, while the application of an updated solar modulation potential increases the forcing difference between the Maunder minimum and the present by 25-40%.",
keywords = "solar-terrestrial relations, Sun: UV radiation, Sun: atmosphere, radiative transfer, line: formation, Sun: faculae, plages, CYCLES 21-23, ACTIVE SUN, RECONSTRUCTION, VARIABILITY, MODELS, IMPACT, RECORD",
author = "W. Schmutz and E. Rozanov and A. Shapiro and I.G. Usoskin and J. Beer and R. Tagirov and T. Peter",
year = "2018",
month = jul,
day = "18",
doi = "10.1051/0004-6361/201731199",
language = "Английский",
volume = "615",
journal = "ASTRONOMY & ASTROPHYSICS",
issn = "0004-6361",
publisher = "EDP Sciences",

}

RIS

TY - JOUR

T1 - Revised historical solar irradiance forcing

AU - Schmutz, W.

AU - Rozanov, E.

AU - Shapiro, A.

AU - Usoskin, I.G.

AU - Beer, J.

AU - Tagirov, R.

AU - Peter, T.

PY - 2018/7/18

Y1 - 2018/7/18

N2 - Context. There is no consensus on the amplitude of historical solar forcing. The estimated magnitude of the total solar irradiance (TSI) difference between the Maunder minimum and the present time ranges from 0.1 to 6 W m(-2) making the simulation of the past and future climate uncertain. One reason for this disagreement is the applied evolution of the quiet Sun brightness in solar irradiance reconstruction models. This work addresses the role of the quiet Sun model choice and updated solar magnetic activity proxies on the solar forcing reconstruction.Aims. We aim to establish a plausible range for the solar irradiance variability on decadal to millennial timescales.Methods. The spectral solar irradiance (SSI) is calculated as a weighted sum of the contributions from sunspot umbra, sunspot penumbra, faculae, and quiet Sun, which are pre-calculated with the NLTE Spectral SYnthesis code (NESSY). We introduce activity belts of the contributions from sunspots and faculae and a new structure model for the quietest state of the Sun. We assume that the brightness of the quiet Sun varies in time proportionally to the secular (22-yr smoothed) variation of the solar modulation potential.Results. A new reconstruction of the TSI and SSI covering the period 6000 BCE - 2015 CE is presented. The model simulates solar irradiance variability during the satellite era well. The TSI change between the Maunder and recent minima ranges between 3.7 and 4.5 Wm(-2) depending on the applied solar modulation potential. The implementation of a new quietest Sun model reduces, by approximately a factor of two, the relative solar forcing compared to the largest previous estimation, while the application of an updated solar modulation potential increases the forcing difference between the Maunder minimum and the present by 25-40%.

AB - Context. There is no consensus on the amplitude of historical solar forcing. The estimated magnitude of the total solar irradiance (TSI) difference between the Maunder minimum and the present time ranges from 0.1 to 6 W m(-2) making the simulation of the past and future climate uncertain. One reason for this disagreement is the applied evolution of the quiet Sun brightness in solar irradiance reconstruction models. This work addresses the role of the quiet Sun model choice and updated solar magnetic activity proxies on the solar forcing reconstruction.Aims. We aim to establish a plausible range for the solar irradiance variability on decadal to millennial timescales.Methods. The spectral solar irradiance (SSI) is calculated as a weighted sum of the contributions from sunspot umbra, sunspot penumbra, faculae, and quiet Sun, which are pre-calculated with the NLTE Spectral SYnthesis code (NESSY). We introduce activity belts of the contributions from sunspots and faculae and a new structure model for the quietest state of the Sun. We assume that the brightness of the quiet Sun varies in time proportionally to the secular (22-yr smoothed) variation of the solar modulation potential.Results. A new reconstruction of the TSI and SSI covering the period 6000 BCE - 2015 CE is presented. The model simulates solar irradiance variability during the satellite era well. The TSI change between the Maunder and recent minima ranges between 3.7 and 4.5 Wm(-2) depending on the applied solar modulation potential. The implementation of a new quietest Sun model reduces, by approximately a factor of two, the relative solar forcing compared to the largest previous estimation, while the application of an updated solar modulation potential increases the forcing difference between the Maunder minimum and the present by 25-40%.

KW - solar-terrestrial relations

KW - Sun: UV radiation

KW - Sun: atmosphere

KW - radiative transfer

KW - line: formation

KW - Sun: faculae, plages

KW - CYCLES 21-23

KW - ACTIVE SUN

KW - RECONSTRUCTION

KW - VARIABILITY

KW - MODELS

KW - IMPACT

KW - RECORD

U2 - 10.1051/0004-6361/201731199

DO - 10.1051/0004-6361/201731199

M3 - статья

VL - 615

JO - ASTRONOMY & ASTROPHYSICS

JF - ASTRONOMY & ASTROPHYSICS

SN - 0004-6361

M1 - 85

ER -

ID: 92397436