| DOI: | 10.1002/jgrd.50310
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| 论文题名: | The solar chromospheric Ca and Mg indices from Aura OMI |
| 作者: | Deland M.; Marchenko S.
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| 刊名: | Journal of Geophysical Research Atmospheres
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| ISSN: | 21698996
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| 出版年: | 2013
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| 卷: | 118, 期:8 | | 起始页码: | 3415
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| 结束页码: | 3423
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| 语种: | 英语
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| 英文关键词: | solar UV variability
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| Scopus关键词: | Chromophores
; Instruments
; Direct observations
; Fraunhofer lines
; Irradiance measurement
; Long-term variations
; Multiple instruments
; Ozone monitoring instruments
; solar UV variability
; UV irradiances
; Calcium
; Aura (satellite)
; calcium
; data set
; energetics
; energy balance
; irradiance
; magnesium
; proxy climate record
; ultraviolet radiation
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| 英文摘要: | Direct observations of long-term variations in solar UV irradiance from satellites, although important for monitoring the energetic forcing of the Earth's atmosphere, is challenging because of the difficulty of accurately tracking instrument response changes. Proxy indexes based on core-to-wing ratios of solar Fraunhofer lines, such as the Mg II feature at 280 nm, can minimize the impact of both time- and wavelength-dependent instrument changes to better monitor solar UV activity. Here we present new data sets from the Ozone Monitoring Instrument (OMI) on the Aura satellite, which began operations in late 2004. The high quality of OMI irradiance measurements allows us to construct daily indexes for the Mg II, Ca II K (393.4 nm), Ca II H (396.8 nm), and Mg I (285.2 nm) lines. The OMI Ca II K index is well correlated with the Mg II index measured by multiple instruments, as well as the ground-based National Solar Observatory (NSO) Ca II K 1.0 Å index data derived from Integrated Sunlight Spectrometer measurements. OMI Ca II K data can be used to evaluate anomalous short-term features in the NSO data set. The OMI solar data products represent a valuable addition to current data sets. ©2013. American Geophysical Union. All Rights Reserved. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/63789
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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作者单位: | Science Systems and Applications, Inc., 10210 Greenbelt Road, Lanham, MD 20706, United States
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| Recommended Citation: | |
Deland M.,Marchenko S.. The solar chromospheric Ca and Mg indices from Aura OMI[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(8)
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