A Century of Solar Ca II Measurements and Their Implication for Solar UV Driving of Climate

被引：62

作者：

Foukal, Peter ^{[1
]}

Bertello, Luca ^{[2
]}

Livingston, William C. ^{[3
]}

Pevtsov, Alexei A. ^{[4
]}

Singh, Jagdev ^{[5
]}

Tlatov, Andrey G. ^{[6
]}

Ulrich, Roger K. ^{[2
]}

机构：

[1] Heliophysics Inc, Nahant, MA 01908 USA

[2] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

[3] Natl Solar Observ, Tucson, AZ 85726 USA

[4] Natl Solar Observ, Sunspot, NM 88349 USA

[5] Indian Inst Astrophys, Bangalore 560034, Karnataka, India

[6] Pulkovo Observ, Kislovodsk Solar Stn, Kislovodsk, Russia

来源：

SOLAR PHYSICS | 2009年 / 255卷 / 02期

基金：

美国国家科学基金会;

关键词：

Solar activity; Magnetic plages; Solar ultraviolet irradiance; Sun-climate effects; IRRADIANCE VARIATIONS; K SPECTROHELIOGRAMS; ULTRAVIOLET; VARIABILITY; TEMPERATURE; FACULAE; MODEL; FLUX;

D O I：

10.1007/s11207-009-9330-0

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Spectroheliograms and disk-integrated flux monitoring in the strong resonance line of Ca II (K line) provide the longest record of chromospheric magnetic plages. We compare recent reductions of the Ca II K spectroheliograms obtained since 1907 at the Kodaikanal, Mt. Wilson, and US National Solar Observatories. Certain differences between the individual plage indices appear to be caused mainly by differences in the spectral passbands used. Our main finding is that the indices show remarkably consistent behavior on the multidecadal time scales of greatest interest to global warming studies. The reconstruction of solar ultraviolet flux variation from these indices differs significantly from the 20th-century global temperature record. This difference is consistent with other findings that, although solar UV irradiance variation may affect climate through influence on precipitation and storm tracks, its significance in global temperature remains elusive.

引用

页码：229 / 238

页数：10

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