Recent Trends in Temperature and Precipitation in the Langat River Basin, Malaysia

Amirabadizadeh, Mahdi; Huang, Yuk Feng; Lee, Teang Shui

doi:10.1155/2015/579437

Cited by 40 publications

(20 citation statements)

References 21 publications

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“…The increment of TNmean was larger than TXmean, where significant increasing trends were found in each month (0.16-0.6 • C/decade), except February. Comparison of the findings with other Malaysian studies [29,32] confirms the warmer rate of TNmean in Peninsular Malaysia. The annual DTR exhibited a decreasing trend with a rate of 0.07 • C/decade, indicating the differences between TXmean and TNmean are getting smaller.…”

Section: Trend Of Temperature Extremessupporting

confidence: 81%

Analysis of Precipitation and Temperature Extremes over the Muda River Basin, Malaysia

Tan

Samat

Chan

et al. 2019

Water

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Trends in precipitation and temperature extremes of the Muda River Basin (MRB) in north-western Peninsular Malaysia were analyzed from 1985 to 2015. Daily climate data from eight stations that passed high quality data control and four homogeneity tests (standard normal homogeneity test, Pettitt test, Buishand range test, and von Neumann ratio test) were used to calculate 22 Expert Team on Climate Change Detection and Indices (ETCCDI) extreme indices. Non-parametric Mann–Kendall, modified Mann–Kendall and Sens’ slope tests were applied to detect the trend and magnitude changes of the climate extremes. Overall, the results indicate that monthly precipitation tended to increase significantly in January (17.01 mm/decade) and December (23.23 mm/decade), but decrease significantly in May (26.21 mm/decade), at a 95% significance level. Monthly precipitation tended to increase in the northeast monsoon, but decrease in the southwest monsoon. Mann–Kendall test detected insignificant trends in most of the annual climate extremes, except the extremely wet days (R99p), mean of maximum temperature (TXmean), mean of minimum temperature (TNmean), cool days (TX10p), cool nights (TN10p), warm days (TX90p) and warm nights (TN90p) indices. The number of heavy (R10mm), very heavy (R20mm), and violent (R50mm) precipitation days changed at magnitudes of 0~2.73, −2.14~3.33, and −1.67~1.29 days/decade, respectively. Meanwhile, the maximum 1-day (Rx1d) and 5-day (Rx5d) precipitation amount indices changed from −10.18 to 3.88 mm/decade and −21.09 to 24.69 mm/decade, respectively. At the Ampangan Muda station, TNmean (0.32 °C/decade) increased at a higher rate compared to TXmean (0.22 °C/decade). The number of the cold days and nights tended to decrease, while an opposite trend was found in the warmer days and nights.

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Section: Trend Of Temperature Extremessupporting

confidence: 81%

Analysis of Precipitation and Temperature Extremes over the Muda River Basin, Malaysia

Tan

Samat

Chan

et al. 2019

Water

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“…Global warming has led to an increase in the climaterelated risks in Malaysia including flood, water stress, agricultural productivity reduction and mosquito-borne infectious disease (Kurane, 2010;Tang, 2019;. Several studies have been conducted to understand the general temperature changes over Malaysia (Amirabadizadeh et al, 2015;Suhaila and Yusop, 2018;Wong et al, 2018). Wai et al (2005) reported increases in the average temperature at annual scale from 0.09 to 0.34 C/decade during the 1971-2001 period.…”

Section: Introductionmentioning

confidence: 99%

Changes in temperature extremes and their relationship with ENSO in Malaysia from 1985 to 2018

Tan

Juneng

Tangang

et al. 2020

Intl Journal of Climatology

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Understanding the changes in temperature extremes is important for managing and coping with the risks associated with regional climate change. However, the climatological characteristics of temperature extremes and their variabilities is still not adequately studies in Malaysia. This study evaluates the spatial and temporal variations of temperature extremes over Malaysia for the period 1985-2018. This study includes four phases: (a) collection, quality control and homogeneity analysis of temperature data; (b) general (TXmean, TNmean, TMmean and DTR), warm (TXx, TNx, TX90p and TN90p) and cool (TXn, TNn, TX10p and TN10p) temperature extreme indices calculations; (c) trend analysis of temperature extremes using the Mann-Kendall and Sens's slope test; and (d) analyses of correlations between temperature extremes and El Niño-Southern Oscillation (ENSO). The results indicate a warming of surface temperature across Malaysia, particularly in Peninsular Malaysia. In general, TXmean, TNmean and TMmean increased significantly at 5% significance level by 0.

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“…In recent decades, studies in dealing with precipitation events and its trends have enormously progressed [3][4][5][6]. On a regional scale, the precipitation trend has decreased in Asia [7,8].…”

Section: Introductionmentioning

confidence: 99%

Projected Changes of Precipitation IDF Curves for Short Duration under Climate Change in Central Vietnam

Thành

Remo

2018

Hydrology

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Abstract:In future years, extreme weather events are expected to frequently increase due to climate change, especially in the combination of climate change and events of El Niño-Southern Oscillation. This pays special attention to the construction of intensity-duration-frequency (IDF) curves at a tempo-spatial scale of sub-daily and sub-grid under a context of climate change. The reason for this is that IDF curves represent essential means to study effects on the performance of drainage systems, damps, dikes and reservoirs. Therefore, the objective of this study is to present an approach to construct future IDF curves with high temporo-spatial resolutions under climate change in central Vietnam, using the case of VuGia-ThuBon. The climate data of historical and future from a regional climate model RegCM4 forced by three global models MPI-ESM-MR, IPSL-CM5A-LR and ICHEC-EC-EARTH are used to re-grid the resolution of 10 km × 10 km grid spacing from 25 km × 25 km on the base of bilinear interpolation. A bias correction method is then applied to the finest resolution of a hydrostatic climate model for an ensemble of simulations. Furthermore, the IDF curves for short durations of precipitation are constructed for the historical climate and future climates under two representative concentration pathway (RCP) scenarios, RCP4.5 and RCP8.5, based on terms of correlation factors. The major findings show that the projected precipitation changes are expected to significantly increase by about 10 to 30% under the scenarios of RCP4.5 and RCP8.5. The projected changes of a maximum of 1-, 2-, and 3-days precipitation are expected to increase by about 30-300 mm/day. More importantly, for all return periods (i.e., 10, 20, 50, 100, and 200 years), IDF curves completely constructed for short durations of precipitation at sub-daily show an increase in intensities for the RCP4.5 and RCP8.5 scenarios.

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Recent Trends in Temperature and Precipitation in the Langat River Basin, Malaysia

Cited by 40 publications

References 21 publications

Analysis of Precipitation and Temperature Extremes over the Muda River Basin, Malaysia

Analysis of Precipitation and Temperature Extremes over the Muda River Basin, Malaysia

Changes in temperature extremes and their relationship with ENSO in Malaysia from 1985 to 2018

Projected Changes of Precipitation IDF Curves for Short Duration under Climate Change in Central Vietnam

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