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Climatological onset dates of summer monsoon over Myanmar
Author(s) -
Htway Ohnmar,
Matsumoto Jun
Publication year - 2011
Publication title -
international journal of climatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.58
H-Index - 166
eISSN - 1097-0088
pISSN - 0899-8418
DOI - 10.1002/joc.2076
Subject(s) - climatology , monsoon , precipitation , geography , south asia , period (music) , monsoon of south asia , environmental science , meteorology , geology , history , ancient history , physics , acoustics
Asian summer monsoon is the predominant climate system in Myanmar and nearly 90% of total rainfalls are from summer monsoon. The timing of monsoon onset is of importance to the agricultural sector and water replenishment. However, there is a lack of systematic method to detect the climatological monsoon onset dates of Myanmar. In this study, the climatology of the summer monsoon onset over Myanmar is defined using the mean pentad precipitation data of 29 stations from 1968 to 2000. As a result, the climatological monsoon onset dates over Myanmar are on 18th May (the middle date of pentad number 28) in the southern and central Myanmar and on 28th May (the middle date of pentad number 30) in the northern Myanmar. These climatological onset dates in two areas of Myanmar are confirmed by examining seven meteorological parameters of the observed station data and ERA40 re‐analysis data during the period between 21st April and 9th June. Copyright © 2010 Royal Meteorological Society