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Performance of five high resolution satellite-based precipitation products in arid region of Egypt: an evaluation

High-resolution daily precipitation estimation is very important in climatological and meteorological studies in the arid regions of the world, as precipitation events in these areas can be sporadic, localized and of very high intensity. In this study, the daily performance of five, ARC2, CHIRPS v2....

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Main Authors: Nashwan, M. S., Shahid, S., Dewan, A., Ismail, T., Alias, N.
Format: Article
Published: Elsevier BV. 2020
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utm.my/id/eprint/87856/
http://www.dx.doi.org/0.1016/j.atmosres.2019.104809
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spelling my.utm.878562020-11-30T13:28:40Z http://eprints.utm.my/id/eprint/87856/ Performance of five high resolution satellite-based precipitation products in arid region of Egypt: an evaluation Nashwan, M. S. Shahid, S. Dewan, A. Ismail, T. Alias, N. TA Engineering (General). Civil engineering (General) High-resolution daily precipitation estimation is very important in climatological and meteorological studies in the arid regions of the world, as precipitation events in these areas can be sporadic, localized and of very high intensity. In this study, the daily performance of five, ARC2, CHIRPS v2.0, GSMaP (v. 6), TAMSAT (v. 3) and PERSIANN-CCS high resolution satellite-based gauge-corrected precipitation products were compared, and the individual performances validated against rain gauge station records in the arid region of Egypt. Seven statistical metrics (three continuous and four categorical), and selected intensity categories, were employed in the modelling of rainfall totals for the 2003 to 2018 period. In general, the results indicated poor outcomes for all the satellite-based products. CHIRPS was best at estimating rainfall of <1 mm/day; this represented 30% of wet days during the study period. ARC and GSMaP performed better in estimating rainfall events with an intensity category of ≥1 mm/day, however both produced a high number of false detections. Despite continuous improvement of TAMSAT, it recorded the worst performance among the products evaluated. The study concluded that GSMaP appeared to be the “best” to use for supporting research activities over the arid Egyptian domain given its performance relative to the other satellite-based precipitation products. Elsevier BV. 2020-05 Article PeerReviewed Nashwan, M. S. and Shahid, S. and Dewan, A. and Ismail, T. and Alias, N. (2020) Performance of five high resolution satellite-based precipitation products in arid region of Egypt: an evaluation. Atmospheric Research, 236 . ISSN 0169-8095 http://www.dx.doi.org/0.1016/j.atmosres.2019.104809 DOI: 0.1016/j.atmosres.2019.104809
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Nashwan, M. S.
Shahid, S.
Dewan, A.
Ismail, T.
Alias, N.
Performance of five high resolution satellite-based precipitation products in arid region of Egypt: an evaluation
description High-resolution daily precipitation estimation is very important in climatological and meteorological studies in the arid regions of the world, as precipitation events in these areas can be sporadic, localized and of very high intensity. In this study, the daily performance of five, ARC2, CHIRPS v2.0, GSMaP (v. 6), TAMSAT (v. 3) and PERSIANN-CCS high resolution satellite-based gauge-corrected precipitation products were compared, and the individual performances validated against rain gauge station records in the arid region of Egypt. Seven statistical metrics (three continuous and four categorical), and selected intensity categories, were employed in the modelling of rainfall totals for the 2003 to 2018 period. In general, the results indicated poor outcomes for all the satellite-based products. CHIRPS was best at estimating rainfall of <1 mm/day; this represented 30% of wet days during the study period. ARC and GSMaP performed better in estimating rainfall events with an intensity category of ≥1 mm/day, however both produced a high number of false detections. Despite continuous improvement of TAMSAT, it recorded the worst performance among the products evaluated. The study concluded that GSMaP appeared to be the “best” to use for supporting research activities over the arid Egyptian domain given its performance relative to the other satellite-based precipitation products.
format Article
author Nashwan, M. S.
Shahid, S.
Dewan, A.
Ismail, T.
Alias, N.
author_facet Nashwan, M. S.
Shahid, S.
Dewan, A.
Ismail, T.
Alias, N.
author_sort Nashwan, M. S.
title Performance of five high resolution satellite-based precipitation products in arid region of Egypt: an evaluation
title_short Performance of five high resolution satellite-based precipitation products in arid region of Egypt: an evaluation
title_full Performance of five high resolution satellite-based precipitation products in arid region of Egypt: an evaluation
title_fullStr Performance of five high resolution satellite-based precipitation products in arid region of Egypt: an evaluation
title_full_unstemmed Performance of five high resolution satellite-based precipitation products in arid region of Egypt: an evaluation
title_sort performance of five high resolution satellite-based precipitation products in arid region of egypt: an evaluation
publisher Elsevier BV.
publishDate 2020
url http://eprints.utm.my/id/eprint/87856/
http://www.dx.doi.org/0.1016/j.atmosres.2019.104809
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score 13.211869

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