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Langley Calibration of Sun Photometer at Kinabalu Park (1574 M a.s.l.) using PDM Algorithm and statistical filter

This paper reports the use of improved Langley plot for LED-type sun photometer calibration at four wavelengths 440, 500, 670 and 870 nm. The Langley plot is improved by series filtration using Perez-Dumortier (PDM) algorithm and statistical filter. Data was collected at a mid-altitude site, Kinabal...

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Main Authors: Nur Hasinah Najiah Maizan, Chang Hian Wui, Jackson, Jumat Sulaiman, Jedol Dayou
Format: Article
Language:English
English
Published: e-VIBS, Faculty of Science and Natural Resources 2016
Subjects:
QA Mathematics
Online Access:https://eprints.ums.edu.my/id/eprint/19889/1/Langley%20Calibration%20of%20Sun%20Photometer%20at%20Kinabalu%20Park.pdf
https://eprints.ums.edu.my/id/eprint/19889/7/Langley%20Calibration%20of%20Sun%20Photometer%20at.pdf
https://eprints.ums.edu.my/id/eprint/19889/
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spelling my.ums.eprints.198892020-12-28T03:50:48Z https://eprints.ums.edu.my/id/eprint/19889/ Langley Calibration of Sun Photometer at Kinabalu Park (1574 M a.s.l.) using PDM Algorithm and statistical filter Nur Hasinah Najiah Maizan Chang Hian Wui, Jackson Jumat Sulaiman Jedol Dayou QA Mathematics This paper reports the use of improved Langley plot for LED-type sun photometer calibration at four wavelengths 440, 500, 670 and 870 nm. The Langley plot is improved by series filtration using Perez-Dumortier (PDM) algorithm and statistical filter. Data was collected at a mid-altitude site, Kinabalu Park, Kundasang (1,574 m a.s.l.) using a portable ASEQ, LR-1 spectrometer. It is shown that with Langley plot alone, it is impossible to correctly identify or remove atmospheric variations within the calibration measurements. These variations are dominated by cloud cover, and short-cirrus cloud. However, result findings show that PDM algorithm and statistical filter are useful tool to improve the result by filtering data contaminated by cloud loading and remove possible drifts caused by instabilities of the instrument. e-VIBS, Faculty of Science and Natural Resources 2016 Article PeerReviewed text en https://eprints.ums.edu.my/id/eprint/19889/1/Langley%20Calibration%20of%20Sun%20Photometer%20at%20Kinabalu%20Park.pdf text en https://eprints.ums.edu.my/id/eprint/19889/7/Langley%20Calibration%20of%20Sun%20Photometer%20at.pdf Nur Hasinah Najiah Maizan and Chang Hian Wui, Jackson and Jumat Sulaiman and Jedol Dayou (2016) Langley Calibration of Sun Photometer at Kinabalu Park (1574 M a.s.l.) using PDM Algorithm and statistical filter. Transactions on Science and Technology, 3 (3). 455 -461. ISSN 2289-8786
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
English
topic QA Mathematics
spellingShingle QA Mathematics
Nur Hasinah Najiah Maizan
Chang Hian Wui, Jackson
Jumat Sulaiman
Jedol Dayou
Langley Calibration of Sun Photometer at Kinabalu Park (1574 M a.s.l.) using PDM Algorithm and statistical filter
description This paper reports the use of improved Langley plot for LED-type sun photometer calibration at four wavelengths 440, 500, 670 and 870 nm. The Langley plot is improved by series filtration using Perez-Dumortier (PDM) algorithm and statistical filter. Data was collected at a mid-altitude site, Kinabalu Park, Kundasang (1,574 m a.s.l.) using a portable ASEQ, LR-1 spectrometer. It is shown that with Langley plot alone, it is impossible to correctly identify or remove atmospheric variations within the calibration measurements. These variations are dominated by cloud cover, and short-cirrus cloud. However, result findings show that PDM algorithm and statistical filter are useful tool to improve the result by filtering data contaminated by cloud loading and remove possible drifts caused by instabilities of the instrument.
format Article
author Nur Hasinah Najiah Maizan
Chang Hian Wui, Jackson
Jumat Sulaiman
Jedol Dayou
author_facet Nur Hasinah Najiah Maizan
Chang Hian Wui, Jackson
Jumat Sulaiman
Jedol Dayou
author_sort Nur Hasinah Najiah Maizan
title Langley Calibration of Sun Photometer at Kinabalu Park (1574 M a.s.l.) using PDM Algorithm and statistical filter
title_short Langley Calibration of Sun Photometer at Kinabalu Park (1574 M a.s.l.) using PDM Algorithm and statistical filter
title_full Langley Calibration of Sun Photometer at Kinabalu Park (1574 M a.s.l.) using PDM Algorithm and statistical filter
title_fullStr Langley Calibration of Sun Photometer at Kinabalu Park (1574 M a.s.l.) using PDM Algorithm and statistical filter
title_full_unstemmed Langley Calibration of Sun Photometer at Kinabalu Park (1574 M a.s.l.) using PDM Algorithm and statistical filter
title_sort langley calibration of sun photometer at kinabalu park (1574 m a.s.l.) using pdm algorithm and statistical filter
publisher e-VIBS, Faculty of Science and Natural Resources
publishDate 2016
url https://eprints.ums.edu.my/id/eprint/19889/1/Langley%20Calibration%20of%20Sun%20Photometer%20at%20Kinabalu%20Park.pdf
https://eprints.ums.edu.my/id/eprint/19889/7/Langley%20Calibration%20of%20Sun%20Photometer%20at.pdf
https://eprints.ums.edu.my/id/eprint/19889/
_version_ 1760229641802481664
score 13.211869

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