The New SCIAMACHY Reference Solar Spectral Irradiance and Its Validation

Hilbig, Tina; Weber, Mark; Bramstedt, K.; Noël, Stefan; Burrows, J. P.; Krijger, J. M.; Snel, Ralph; Meftah, Mustapha; Damé, Luc; Bekki, Slimane; Bolsée, David; Pereira, Nuno; Sluse, Dominique

doi:10.1007/s11207-018-1339-9

Cited by 17 publications

(26 citation statements)

References 56 publications

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“…From top to bottom, Fig. 6 shows the comparison to the solar ET spectra measured with SOLSPEC onboard the International Space Station (the version SOLSPEC_A by Bolsée et al, 2017, andSOLAR_ISS by Meftah et al, 2016), SIM v17 onboard SORCE (Harder et al, 2010), SCIAMACHY (Hilbig et al, 2017), the ATLAS-3 solar spectrum (Thuillier et al, 2003), the Chance-Kurucz solar spectrum (SAO, Smithsonian Astrophysical Observatory; Chance and Kurucz, 2010), a composite solar spectrum made up from a variety of spectra (Gueymard, 2003) and finally another composite solar spectrum corrected by a comparison to ground-based measurements (Egli et al, 2012). The wavelength scales of the five space-based solar spectra were adjusted to air wavelengths to provide a consistent wavelength scale for this comparison.…”

Section: Comparison To Literature Solar Extraterrestrial Spectramentioning

confidence: 99%

“…For SIM and SOLSPEC_A, the highresolution QASUMEFTS spectrum was convolved with the 1.1 (a) SOLSPEC_A Figure 6. From (a) to (h): ratios between QASUMEFTS and the solar ET spectrum from SOLSPEC (SOLSPEC_A by Bolsée et al, 2017, andSOLAR_ISS by Meftah et al, 2016), SORCE SIM (Harder et al, 2010), SCIAMACHY (Hilbig et al, 2017), ATLAS-3 (Thuillier et al, 2003), SAO (Chance and Kurucz, 2010), the composite from Gueymard (2003) and the composite from Egli et al (2012). The black lines are the ratios convolved with a 1 nm wide triangular slit function, while the red line is a 10 nm running average.…”

Section: Comparison To Literature Solar Extraterrestrial Spectramentioning

confidence: 99%

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The high-resolution extraterrestrial solar spectrum (QASUMEFTS) determined from ground-based solar irradiance measurements

et al. 2017

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Abstract. A high-resolution extraterrestrial solar spectrum has been determined from ground-based measurements of direct solar spectral irradiance (SSI) over the wavelength range from 300 to 500 nm using the Langley-plot technique. The measurements were obtained at the Izaña Atmospheric Research Centre from the Agencia Estatal de Meteorología, Tenerife, Spain, during the period 12 to 24 September 2016. This solar spectrum (QASUMEFTS) was combined from medium-resolution (bandpass of 0.86 nm) measurements of the QASUME (Quality Assurance of Spectral Ultraviolet Measurements in Europe) spectroradiometer in the wavelength range from 300 to 500 nm and highresolution measurements (0.025 nm) from a Fourier transform spectroradiometer (FTS) over the wavelength range from 305 to 380 nm. The Kitt Peak solar flux atlas was used to extend this high-resolution solar spectrum to 500 nm. The expanded uncertainties of this solar spectrum are 2 % between 310 and 500 nm and 4 % at 300 nm. The comparison of this solar spectrum with solar spectra measured in space (top of the atmosphere) gave very good agreements in some cases, while in some other cases discrepancies of up to 5 % were observed. The QASUMEFTS solar spectrum represents a benchmark dataset with uncertainties lower than anything previously published. The metrological traceability of the measurements to the International System of Units (SI) is assured by an unbroken chain of calibrations leading to the primary spectral irradiance standard of the PhysikalischTechnische Bundesanstalt in Germany.

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Section: Comparison To Literature Solar Extraterrestrial Spectramentioning

confidence: 99%

Section: Comparison To Literature Solar Extraterrestrial Spectramentioning

confidence: 99%

The high-resolution extraterrestrial solar spectrum (QASUMEFTS) determined from ground-based solar irradiance measurements

et al. 2017

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“…Despite its extremely low variability, < 0.05 % over a solar cycle (Lean, 1991;Harder et al, 2009), the near-infrared (NIR) part of the spectrum plays a major role in the Earth's radiative budget due to its quasi-total absorption by water vapour (Collins et al, 2006). The determination of its absolute level remains challenging (Meftah et al, 2017): the measurement of the topof-atmosphere (TOA) SSI started nearly 50 years ago and evolved both with ground-based and space-borne instruments, and a consensus on the absolute level in the NIR part is still to be achieved Hilbig et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…Another instrument contributing to NIR SSI measurements is SCIAMACHY (Scanning Imaging Absorption Spectrometer for Atmospheric Chartography) (Noël et al, 1998;Burrows et al, 1995), a remote sensing spectrometer adapted to measure SSI. The latest data release is SCIAMACHY V9 (Hilbig et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Metrology of solar spectral irradiance at the top of the atmosphere in the near infrared measured at Mauna Loa Observatory: the PYR-ILIOS campaign

et al. 2018

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The near-infrared (NIR) part of the solar spectrum is of prime importance for solar physics and climatology, directly intervening in the Earth's radiation budget. Despite its major role, available solar spectral irradiance (SSI) NIR datasets, space-borne or ground-based, present discrepancies caused by instrumental or methodological reasons. We present new results obtained from the PYR-ILIOS SSI NIR ground-based campaign, which is a replication of the previous IRSPERAD campaign which took place in 2011 at the Izaña Atmospheric Observatory (IZO). We used the same instrument and primary calibration source of spectral irradiance. A new site was chosen for PYR-ILIOS: the Mauna Loa Observatory (MLO) in Hawaii (3397 m a.s.l.), approximately 1000 m higher than IZO. Relatively to IRSPERAD, the methodology of monitoring the traceability to the primary calibration source was improved. The results as well as a detailed error budget are presented. We demonstrate that the most recent results, from PYR-ILIOS and other space-borne and ground-based experiments, show an NIR SSI lower than the previous reference spectrum, ATLAS3, for wavelengths above 1.6 µm.

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“…Another instrument contributing to NIR SSI measurements is SCIA-MACHY (Scanning Imaging Absorption Spectrometer for Atmospheric Cartography) (Noël et al (1998)), a remote sensing spectrometer adapted to measure SSI. The latest data release is SCIAMACHY V9 (Hilbig et al (2018)). …”

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confidence: 99%

Metrology of the Solar Spectral Irradiance at the Top Of Atmosphere in the Near Infrared Measured at Mauna Loa Observatory: The PYR-ILIOS campaign

Pereira¹,

Bolsée²,

Sperfeld³

et al. 2018

Preprint

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Abstract. The near infrared (NIR) part of the solar spectrum is of prime importance for the solar physics and climatology, directly intervening in the Earth's radiation budget. Despite its major role, available solar spectral irradiance (SSI) NIR datasets, space-borne or ground based, present discrepancies caused by instrumental or methodological reasons. We present new results obtained from the PYR-ILIOS campaign, which is a replication of the previous IRSPERAD campaign which took place in 2011 at the Izaña Observatory (IZO). We used the same instrument and primary calibration source of spectral irradiance. A The results as well as a detailed error budget are presented. We demonstrate that the most recent results, from PYR-ILIOS and other space-borne and ground-based experiments show an NIR SSI lower than ATLAS3 for wavelengths above 1.6µm.

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The New SCIAMACHY Reference Solar Spectral Irradiance and Its Validation

Cited by 17 publications

References 56 publications

The high-resolution extraterrestrial solar spectrum (QASUMEFTS) determined from ground-based solar irradiance measurements

The high-resolution extraterrestrial solar spectrum (QASUMEFTS) determined from ground-based solar irradiance measurements

Metrology of solar spectral irradiance at the top of the atmosphere in the near infrared measured at Mauna Loa Observatory: the PYR-ILIOS campaign

Metrology of the Solar Spectral Irradiance at the Top Of Atmosphere in the Near Infrared Measured at Mauna Loa Observatory: The PYR-ILIOS campaign

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