Innovation in Engineering
Vol. 2 No. 2 (2025): Regular Issue

Analysis of trends and variability in frequency and intensity indices of precipitation over Myanmar during 1985-2020

Khaing, Min (Unknown)
Zin, Win Win (Unknown)
San, Zin Mar Lar Tin (Unknown)
Thiha, Soe (Unknown)
Shrestha, Manish (Unknown)



Article Info

Publish Date
22 May 2025

Abstract

In this study, an analysis of long-term extreme precipitation indices was conducted using daily observation data from 38 stations in Myanmar spanning from 1985 to 2020. Three frequency indices and six intensity indices of precipitation were analyzed using RClimDex software. The Mann-Kendall test, along with Sen’s slope method, was employed to determine the trends and magnitude of extreme indices. The spatial distribution patterns varied across different physiographic regions, with 63% to 76% of the stations displaying increasing trends in various indices. The consecutive dry days showed increasing trends in the hilly regions, whereas the consecutive wet days exhibited decreasing trends in those areas. For the maximum 1-day precipitation, 45% of stations displayed increasing trends, with 5% of those being statistically significant. The Western Hilly Region exhibited rising trends in extremely wet days, whereas other regions have experienced mixed trends. These findings highlight the need for adaptive water resources engineering and management to address the localized changes of precipitation trends that affect floods and droughts in Myanmar.

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Journal Info

Abbrev

ie

Publisher

Subject

Engineering

Description

Innovation in Engineering is an international journal dedicated to publishing the latest research in the field of engineering. The journal serves as a platform for researchers, engineers and designers to share their innovative findings, methodologies and insights into the conceptualisation, ...