Comparison of different methods in estimating potential evapotranspiration

Evapotranspiration (ET) is a term used to describe the sum of evaporation and transpiration form land surface to atmosphere. Considering the importance of ET, two methods was developed to estimate potential evapotranspiration (PET). The two ET groups there are temperature-based method and radiation-...

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Main Author:	Ayu Shakira, Shafie
Format:	Undergraduates Project Papers
Language:	English English English
Published:	2016
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/16116/ http://umpir.ump.edu.my/id/eprint/16116/ http://umpir.ump.edu.my/id/eprint/16116/1/Comparison%20of%20different%20methods%20in%20estimating%20potential%20evapotranspiration-Table%20of%20contents-FKASA-Ayu%20Shakira%20Shafie-CD%2010198.pdf http://umpir.ump.edu.my/id/eprint/16116/2/Comparison%20of%20different%20methods%20in%20estimating%20potential%20evapotranspiration-Abstract-FKASA-Ayu%20Shakira%20Shafie-CD%2010198.pdf http://umpir.ump.edu.my/id/eprint/16116/13/Comparison%20of%20different%20methods%20in%20estimating%20potential%20evapotranspiration-Chapter%201-FKASA-Ayu%20Shakira%20Shafie-CD%2010198.pdf

id	ump-16116
recordtype	eprints
spelling	ump-161162017-01-11T07:03:32Z http://umpir.ump.edu.my/id/eprint/16116/ Comparison of different methods in estimating potential evapotranspiration Ayu Shakira, Shafie TA Engineering (General). Civil engineering (General) Evapotranspiration (ET) is a term used to describe the sum of evaporation and transpiration form land surface to atmosphere. Considering the importance of ET, two methods was developed to estimate potential evapotranspiration (PET). The two ET groups there are temperature-based method and radiation-based method. About two types of PET methods were selected for each groups there are Priestly-Taylor Method and Turc Method to represent radiation-based method, meanwhile Hargreaves-Samani Method and Blaney-Criddle Method represented temperature-based method. The A2 scenario is used to represent the level of state development due to the climate projection results. The daily temperature data was provided by MMD under Ministry Science. The data provided was used in the method to estimate the future trend of PET in long term. Downscaling is a technique that have been used to predict the local meteorological condition. The SDSM is a tool that used to produce high resolution climate change scenario. The objective of the study was to quantify the performance between radiation-based method and temperature-based method and to analyse the future trend of ET at Kuantan, Pahang state. In this study, it was found that the radiation-based method gave better performance compared to temperature-based method in quantifying in calculating ET. In radiation-based method, Priestly-Taylor Methods is the most suitable method to use to find ET based on the lowest value of absolute error and higher Pearson error. Projection temperature results for minimum, mean and minimum will increase in every 30 years for interval year 2010-2039, 2040-2069 and 2099. From the projecting temperature, Turc Method under radiation-based method are suitable for projecting changing pattern of ET under climate change scenario. On the other hand, accuracy and reliability of simple PET models vary widely according to climate condition. 2016-06 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/16116/1/Comparison%20of%20different%20methods%20in%20estimating%20potential%20evapotranspiration-Table%20of%20contents-FKASA-Ayu%20Shakira%20Shafie-CD%2010198.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/16116/2/Comparison%20of%20different%20methods%20in%20estimating%20potential%20evapotranspiration-Abstract-FKASA-Ayu%20Shakira%20Shafie-CD%2010198.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/16116/13/Comparison%20of%20different%20methods%20in%20estimating%20potential%20evapotranspiration-Chapter%201-FKASA-Ayu%20Shakira%20Shafie-CD%2010198.pdf Ayu Shakira, Shafie (2016) Comparison of different methods in estimating potential evapotranspiration. Faculty of Civil Engineering and Earth Resources, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:98132&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Ayu Shakira, Shafie Comparison of different methods in estimating potential evapotranspiration
description	Evapotranspiration (ET) is a term used to describe the sum of evaporation and transpiration form land surface to atmosphere. Considering the importance of ET, two methods was developed to estimate potential evapotranspiration (PET). The two ET groups there are temperature-based method and radiation-based method. About two types of PET methods were selected for each groups there are Priestly-Taylor Method and Turc Method to represent radiation-based method, meanwhile Hargreaves-Samani Method and Blaney-Criddle Method represented temperature-based method. The A2 scenario is used to represent the level of state development due to the climate projection results. The daily temperature data was provided by MMD under Ministry Science. The data provided was used in the method to estimate the future trend of PET in long term. Downscaling is a technique that have been used to predict the local meteorological condition. The SDSM is a tool that used to produce high resolution climate change scenario. The objective of the study was to quantify the performance between radiation-based method and temperature-based method and to analyse the future trend of ET at Kuantan, Pahang state. In this study, it was found that the radiation-based method gave better performance compared to temperature-based method in quantifying in calculating ET. In radiation-based method, Priestly-Taylor Methods is the most suitable method to use to find ET based on the lowest value of absolute error and higher Pearson error. Projection temperature results for minimum, mean and minimum will increase in every 30 years for interval year 2010-2039, 2040-2069 and 2099. From the projecting temperature, Turc Method under radiation-based method are suitable for projecting changing pattern of ET under climate change scenario. On the other hand, accuracy and reliability of simple PET models vary widely according to climate condition.
format	Undergraduates Project Papers
author	Ayu Shakira, Shafie
author_facet	Ayu Shakira, Shafie
author_sort	Ayu Shakira, Shafie
title	Comparison of different methods in estimating potential evapotranspiration
title_short	Comparison of different methods in estimating potential evapotranspiration
title_full	Comparison of different methods in estimating potential evapotranspiration
title_fullStr	Comparison of different methods in estimating potential evapotranspiration
title_full_unstemmed	Comparison of different methods in estimating potential evapotranspiration
title_sort	comparison of different methods in estimating potential evapotranspiration
publishDate	2016
url	http://umpir.ump.edu.my/id/eprint/16116/ http://umpir.ump.edu.my/id/eprint/16116/ http://umpir.ump.edu.my/id/eprint/16116/1/Comparison%20of%20different%20methods%20in%20estimating%20potential%20evapotranspiration-Table%20of%20contents-FKASA-Ayu%20Shakira%20Shafie-CD%2010198.pdf http://umpir.ump.edu.my/id/eprint/16116/2/Comparison%20of%20different%20methods%20in%20estimating%20potential%20evapotranspiration-Abstract-FKASA-Ayu%20Shakira%20Shafie-CD%2010198.pdf http://umpir.ump.edu.my/id/eprint/16116/13/Comparison%20of%20different%20methods%20in%20estimating%20potential%20evapotranspiration-Chapter%201-FKASA-Ayu%20Shakira%20Shafie-CD%2010198.pdf
first_indexed	2023-09-18T22:21:30Z
last_indexed	2023-09-18T22:21:30Z
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Comparison of different methods in estimating potential evapotranspiration

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