Creation of the GSFCSSI2 Composite Solar Spectral Irradiance Data Set
Abstract Solar spectral irradiance (SSI) is a key driver for the Earth's energy budget. Characterizing the spectral and temporal variations in SSI from measurements over multiple decades relies on the creation of a composite SSI product that merges data from multiple instruments. The V1 composi...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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American Geophysical Union (AGU)
2019-07-01
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| Series: | Earth and Space Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1029/2019EA000616 |
| _version_ | 1828396771524476928 |
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| author | Matthew T. DeLand Linton E. Floyd Sergey Marchenko Ramaswamy Tiruchirapalli |
| author_facet | Matthew T. DeLand Linton E. Floyd Sergey Marchenko Ramaswamy Tiruchirapalli |
| author_sort | Matthew T. DeLand |
| collection | DOAJ |
| description | Abstract Solar spectral irradiance (SSI) is a key driver for the Earth's energy budget. Characterizing the spectral and temporal variations in SSI from measurements over multiple decades relies on the creation of a composite SSI product that merges data from multiple instruments. The V1 composite SSI product created by DeLand and Cebula (2008, https://doi.org/10.1029/98JD01204) provides daily spectra covering 120–400 nm by combining data from six instruments but ends in July 2005. We have developed an improved composite SSI product, designated GSFCSSI2, that extends to the present by incorporating additional SSI data sets from the NOAA‐16 SBUV/2, Aura Ozone Monitoring Instrument (OMI), and SORCE SOLSTICE instruments. The NOAA‐16 SBUV/2 SSI data set is a new product that fills a data gap at 170–400 nm in 2005–2006, while the Aura OMI SSI data set represents an improvement over previously published measurements and covers the time period 2006–2018. The SORCE SOLSTICE SSI data set provides data coverage down to 120 nm for the time period 2005–2018. The new GSFCSSI2 composite now spans almost 40 years (November 1978–April 2018) and extends observational coverage into the visible region (500 nm) with OMI data. Comparisons with the NRLSSI2 modelled SSI data set show typical agreement to within ±5% between 120 and 170 nm, ±2%–3% between 170 and 300 nm, and ±1.5% or better between 300 and 500 nm. The GSFCSSI2 composite SSI product is an element of the NASA Solar Irradiance Science Team program and can be further improved by incorporating other data sets being produced through that effort. |
| first_indexed | 2024-12-10T08:36:00Z |
| format | Article |
| id | doaj.art-6f0c4139cd2c4a1b8f4c15353b57c966 |
| institution | Directory Open Access Journal |
| issn | 2333-5084 |
| language | English |
| last_indexed | 2024-12-10T08:36:00Z |
| publishDate | 2019-07-01 |
| publisher | American Geophysical Union (AGU) |
| record_format | Article |
| series | Earth and Space Science |
| spelling | doaj.art-6f0c4139cd2c4a1b8f4c15353b57c9662022-12-22T01:55:59ZengAmerican Geophysical Union (AGU)Earth and Space Science2333-50842019-07-01671284129810.1029/2019EA000616Creation of the GSFCSSI2 Composite Solar Spectral Irradiance Data SetMatthew T. DeLand0Linton E. Floyd1Sergey Marchenko2Ramaswamy Tiruchirapalli3Science Systems and Applications, Inc. (SSAI) Lanham MD USASpace Systems and Research Corporation Alexandria VA USAScience Systems and Applications, Inc. (SSAI) Lanham MD USAScience Systems and Applications, Inc. (SSAI) Lanham MD USAAbstract Solar spectral irradiance (SSI) is a key driver for the Earth's energy budget. Characterizing the spectral and temporal variations in SSI from measurements over multiple decades relies on the creation of a composite SSI product that merges data from multiple instruments. The V1 composite SSI product created by DeLand and Cebula (2008, https://doi.org/10.1029/98JD01204) provides daily spectra covering 120–400 nm by combining data from six instruments but ends in July 2005. We have developed an improved composite SSI product, designated GSFCSSI2, that extends to the present by incorporating additional SSI data sets from the NOAA‐16 SBUV/2, Aura Ozone Monitoring Instrument (OMI), and SORCE SOLSTICE instruments. The NOAA‐16 SBUV/2 SSI data set is a new product that fills a data gap at 170–400 nm in 2005–2006, while the Aura OMI SSI data set represents an improvement over previously published measurements and covers the time period 2006–2018. The SORCE SOLSTICE SSI data set provides data coverage down to 120 nm for the time period 2005–2018. The new GSFCSSI2 composite now spans almost 40 years (November 1978–April 2018) and extends observational coverage into the visible region (500 nm) with OMI data. Comparisons with the NRLSSI2 modelled SSI data set show typical agreement to within ±5% between 120 and 170 nm, ±2%–3% between 170 and 300 nm, and ±1.5% or better between 300 and 500 nm. The GSFCSSI2 composite SSI product is an element of the NASA Solar Irradiance Science Team program and can be further improved by incorporating other data sets being produced through that effort.https://doi.org/10.1029/2019EA000616solar spectral irradiance |
| spellingShingle | Matthew T. DeLand Linton E. Floyd Sergey Marchenko Ramaswamy Tiruchirapalli Creation of the GSFCSSI2 Composite Solar Spectral Irradiance Data Set Earth and Space Science solar spectral irradiance |
| title | Creation of the GSFCSSI2 Composite Solar Spectral Irradiance Data Set |
| title_full | Creation of the GSFCSSI2 Composite Solar Spectral Irradiance Data Set |
| title_fullStr | Creation of the GSFCSSI2 Composite Solar Spectral Irradiance Data Set |
| title_full_unstemmed | Creation of the GSFCSSI2 Composite Solar Spectral Irradiance Data Set |
| title_short | Creation of the GSFCSSI2 Composite Solar Spectral Irradiance Data Set |
| title_sort | creation of the gsfcssi2 composite solar spectral irradiance data set |
| topic | solar spectral irradiance |
| url | https://doi.org/10.1029/2019EA000616 |
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