Multichannel radiometer calibration: A new approach

The error in irradiance measured with Sun-calibrated multichannel radiometers may be large when the solar zenith angle (SZA) increases. This could be particularly detrimental in radiometers installed at mid and high latitudes, where SZAs at noon are larger than 50° during part of the year. When a mu...

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Detalles Bibliográficos
Publicado: 2005
Materias:
Calibration
Error analysis
Irradiation
Ozone
Solar energy
Sun
Calibration constant
Ozone column
Radiometer calibration
Solar zenith angle (SZA)
Radiometers
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1559128X_v44_n26_p5374_Diaz
http://hdl.handle.net/20.500.12110/paper_1559128X_v44_n26_p5374_Diaz
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_1559128X_v44_n26_p5374_Diaz
record_format dspace
spelling paper:paper_1559128X_v44_n26_p5374_Diaz2023-06-08T16:23:38Z Multichannel radiometer calibration: A new approach Calibration Error analysis Irradiation Ozone Solar energy Sun Calibration constant Ozone column Radiometer calibration Solar zenith angle (SZA) Radiometers The error in irradiance measured with Sun-calibrated multichannel radiometers may be large when the solar zenith angle (SZA) increases. This could be particularly detrimental in radiometers installed at mid and high latitudes, where SZAs at noon are larger than 50° during part of the year. When a multi-regressive methodology, including the total ozone column and SZA, was applied in the calculation of the calibration constant, an important improvement was observed. By combining two different equations, an improvement was obtained at almost all the SZAs in the calibration. An independent test that compared the irradiance of a multichannel instrument and a spectroradiometer installed in Ushuaia, Argentina, was used to confirm the results. © 2005 Optical Society of America. 2005 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1559128X_v44_n26_p5374_Diaz http://hdl.handle.net/20.500.12110/paper_1559128X_v44_n26_p5374_Diaz
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Calibration
Error analysis
Irradiation
Ozone
Solar energy
Sun
Calibration constant
Ozone column
Radiometer calibration
Solar zenith angle (SZA)
Radiometers
spellingShingle Calibration
Error analysis
Irradiation
Ozone
Solar energy
Sun
Calibration constant
Ozone column
Radiometer calibration
Solar zenith angle (SZA)
Radiometers
Multichannel radiometer calibration: A new approach
topic_facet Calibration
Error analysis
Irradiation
Ozone
Solar energy
Sun
Calibration constant
Ozone column
Radiometer calibration
Solar zenith angle (SZA)
Radiometers
description The error in irradiance measured with Sun-calibrated multichannel radiometers may be large when the solar zenith angle (SZA) increases. This could be particularly detrimental in radiometers installed at mid and high latitudes, where SZAs at noon are larger than 50° during part of the year. When a multi-regressive methodology, including the total ozone column and SZA, was applied in the calculation of the calibration constant, an important improvement was observed. By combining two different equations, an improvement was obtained at almost all the SZAs in the calibration. An independent test that compared the irradiance of a multichannel instrument and a spectroradiometer installed in Ushuaia, Argentina, was used to confirm the results. © 2005 Optical Society of America.
title Multichannel radiometer calibration: A new approach
title_short Multichannel radiometer calibration: A new approach
title_full Multichannel radiometer calibration: A new approach
title_fullStr Multichannel radiometer calibration: A new approach
title_full_unstemmed Multichannel radiometer calibration: A new approach
title_sort multichannel radiometer calibration: a new approach
publishDate 2005
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1559128X_v44_n26_p5374_Diaz
http://hdl.handle.net/20.500.12110/paper_1559128X_v44_n26_p5374_Diaz
_version_ 1768545573128896512

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