Published 26-06-2023
Keywords
- Evaporation , World Meteorological Organization (WMO)
How to Cite
Copyright (c) 2023 Journal of Water Resources Management

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Abstract
This paper attempts to highlight the findings of the direct method of measurement for evaporation on the daily manual pan evaporation data collection and availability analysis from the pan evaporation data provided by the Department of Irrigation and Drainage (DID) Malaysia using the U.S. Class ‘A’ evaporation pan stations located in Peninsular Malaysia. It also aims to review and analyse the average daily pan evaporation at 14 evaporation stations for the year 2015, monthly and annual pan evaporation data at five evaporation stations for the years 2011 to 2015 in Peninsular Malaysia with the data provided by DID Malaysia through a 5-year trend analysis and will discuss on the current issues pertaining to the pan evaporation data collection practices. The findings will later identify, propose and recommend on the best approach to improve the pan evaporation data information standards with reference to the latest World Meteorological Organization (WMO) guidelines and practices as well as the local standards and technology available in the market.