Observed trends in extreme temperature over the Klan

This study investigates the recent extreme temperature trends across 19 stations in the Klang Valley, Malaysia, over the period 2006−16. Fourteen extreme index trends were analyzed using the Mann−Kendall non-parametric test, with Sen’s slope as a magnitude estimator. Generally, the annual daily mean...

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Main Authors: Ahmad Norazhar Mohd Yatim, Mohd Talib Latif, Fatimah Ahamad, Md Firoz Khan
Format: Article
Language:English
English
Published: ResearchGate 2019
Subjects:
Online Access:https://eprints.ums.edu.my/id/eprint/37542/1/ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/37542/2/FULL%20TEXT.pdf
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author Ahmad Norazhar Mohd Yatim
Mohd Talib Latif
Fatimah Ahamad
Md Firoz Khan
author_facet Ahmad Norazhar Mohd Yatim
Mohd Talib Latif
Fatimah Ahamad
Md Firoz Khan
author_sort Ahmad Norazhar Mohd Yatim
collection UMS
description This study investigates the recent extreme temperature trends across 19 stations in the Klang Valley, Malaysia, over the period 2006−16. Fourteen extreme index trends were analyzed using the Mann−Kendall non-parametric test, with Sen’s slope as a magnitude estimator. Generally, the annual daily mean temperature, daily mean maximum temperature, and daily mean minimum temperature in the Klang Valley increased significantly, by 0.07°C yr−1, 0.07°C yr−1 and 0.08°C yr−1 , respectively. For the warm temperature indices, the results indicated a significant upward trend for the annual maximum of maximum temperature, by 0.09°C yr−1, and the annual maximum of minimum temperature, by 0.11°C yr−1. The results for the total number of warm days and warm nights showed significant increasing trends of 5.02 d yr−1 and 6.92 d yr−1 , respectively. For the cold temperature indices, there were upward trends for the annual minimum of maximum temperature, by 0.09°C yr−1, and the annual minimum of minimum temperature, by 0.03°C yr−1, concurrent with the decreases in the total number cold days (TX10P), with −3.80 d yr−1, and cold nights (TN10P), with −4.33 d yr−1. The 34°C and 37°C summer days results showed significant upward trends of 4.10 d yr−1 and 0.25 d yr−1, respectively. Overall, these findings showed upward warming trends in the Klang Valley, with the minimum temperature rate increasing more than that of the maximum temperature, especially in urban areas.
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spelling ums.eprints-375422023-10-31T02:22:51Z https://eprints.ums.edu.my/id/eprint/37542/ Observed trends in extreme temperature over the Klan Ahmad Norazhar Mohd Yatim Mohd Talib Latif Fatimah Ahamad Md Firoz Khan HC10-1085 Economic history and conditions QC851-999 Meteorology. Climatology Including the earth's atmosphere This study investigates the recent extreme temperature trends across 19 stations in the Klang Valley, Malaysia, over the period 2006−16. Fourteen extreme index trends were analyzed using the Mann−Kendall non-parametric test, with Sen’s slope as a magnitude estimator. Generally, the annual daily mean temperature, daily mean maximum temperature, and daily mean minimum temperature in the Klang Valley increased significantly, by 0.07°C yr−1, 0.07°C yr−1 and 0.08°C yr−1 , respectively. For the warm temperature indices, the results indicated a significant upward trend for the annual maximum of maximum temperature, by 0.09°C yr−1, and the annual maximum of minimum temperature, by 0.11°C yr−1. The results for the total number of warm days and warm nights showed significant increasing trends of 5.02 d yr−1 and 6.92 d yr−1 , respectively. For the cold temperature indices, there were upward trends for the annual minimum of maximum temperature, by 0.09°C yr−1, and the annual minimum of minimum temperature, by 0.03°C yr−1, concurrent with the decreases in the total number cold days (TX10P), with −3.80 d yr−1, and cold nights (TN10P), with −4.33 d yr−1. The 34°C and 37°C summer days results showed significant upward trends of 4.10 d yr−1 and 0.25 d yr−1, respectively. Overall, these findings showed upward warming trends in the Klang Valley, with the minimum temperature rate increasing more than that of the maximum temperature, especially in urban areas. ResearchGate 2019 Article NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/37542/1/ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/37542/2/FULL%20TEXT.pdf Ahmad Norazhar Mohd Yatim and Mohd Talib Latif and Fatimah Ahamad and Md Firoz Khan (2019) Observed trends in extreme temperature over the Klan. Advances in atmospheric sciences, 36. pp. 1-17. https://doi.org/10.1007/s00376-019-9075-0
spellingShingle HC10-1085 Economic history and conditions
QC851-999 Meteorology. Climatology Including the earth's atmosphere
Ahmad Norazhar Mohd Yatim
Mohd Talib Latif
Fatimah Ahamad
Md Firoz Khan
Observed trends in extreme temperature over the Klan
title Observed trends in extreme temperature over the Klan
title_full Observed trends in extreme temperature over the Klan
title_fullStr Observed trends in extreme temperature over the Klan
title_full_unstemmed Observed trends in extreme temperature over the Klan
title_short Observed trends in extreme temperature over the Klan
title_sort observed trends in extreme temperature over the klan
topic HC10-1085 Economic history and conditions
QC851-999 Meteorology. Climatology Including the earth's atmosphere
url https://eprints.ums.edu.my/id/eprint/37542/1/ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/37542/2/FULL%20TEXT.pdf
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