Inter-annual and seasonal patterns of precipitable water vapour over Malaysia from 1990-2019 based on MERRA-2 reanalysis

Ezekiel K. Makama; Hwee S. Lim

doi:10.22630/PNIKS.2021.30.1.18

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Published:

Mar 30, 2021

Issue

Vol. 30 No. 1 (2021)

Section

Original papers

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Ezekiel K. Makama

University of Jos, Department of Physics, PMB 2084, Jo,s Nigeria

Hwee S. Lim

Universiti Sains Malaysia, School of Physics, 11800 USM, Pulau Pinang, Malaysia

DOI: https://doi.org/10.22630/PNIKS.2021.30.1.18

Keywords : total precipitable water vapour, MERRA-2, monsoon, reanalysis

Abstract

In this study seasonal and inter-annual patterns as well as trend in the total precipitable water vapour (TPW) over Malaysia, based on a 30-year data from MERRA-2, have been evaluated using least square regression method. Indicator TPW revealed a pair of minima in February/August and maxima in May/November with highest and lowest long-term means found in East Malaysia. Long-term seasonal variability of TPW exhibited latitudinal dependency in both the NEM and SWM seasons. Indicator TPW showed respective southeast-northwest and southwest-northeast spatial distribution in West and East Malaysia, with the highest statistically significant positive trend found in the former.

How to Cite

Makama, E. K., & Lim, H. S. (2021). Inter-annual and seasonal patterns of precipitable water vapour over Malaysia from 1990-2019 based on MERRA-2 reanalysis. Scientific Review Engineering and Environmental Sciences (SREES), 30(1), 208–218. https://doi.org/10.22630/PNIKS.2021.30.1.18

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