Ahmad, Nor Farah Atiqah and Askari, Muhamad and Harun, Sobri and Fadhil, Abu Bakar and Demun, Amat Sairin (2017) Sensitivity analysis of a FAO penman monteith for potential evapotranspiration to climate change. Jurnal Teknologi, 79 (7). pp. 21-30. ISSN 0127-9696
Full text not available from this repository. (Request a copy)Abstract
Sensitivity of the FAO Penman-Monteith (FPM) potential evapotranspiration (PET) model under tropical climates has been studied in the present study. A total of 17 meteorological stations covering Peninsular Malaysia starting from 1987-2003 were used as model inputs. A sensitivity analysis (SA) was carried out using the graphical method for temperature, wind speed and solar radiation within the possible range of ±20% with increments of 5%. From the comparison done on the sensitivity of PET to climatic change, the Kuala Krai station gave the highest percentage change in terms of temperature (±6%). The highest percentage change for wind speed (±2%) and solar radiation (±17%) were shown at the Alor Setar and Kuala Krai stations, respectively. The Alor Setar station had the lowest percentage change for temperature (±0.3%) and solar radiation (±9.9). The lowest percentage change of wind speed (± 0.2%) was observed at the Kuala Krai station. PET percentage changes have a positive correlation to the percentage change of all climatic variables except for the Cameron Highlands station. Results revealed that solar radiation has the most significant effect on PET (±14%), followed by temperature (±4%) and wind speed (±1%). Taken together, these results suggest that solar radiation plays an important role in estimating PET in Peninsular Malaysia.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Potential evapotranspiration; Sensitivity analysis; FAO Penman-Monteith; Meteorological parameters; Climate change |
| Subjects: | Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Center for Diploma Studies > Dept. of Civil Engineering |
| Depositing User: | Miss Nur Rasyidah Rosli |
| Date Deposited: | 16 Dec 2021 06:34 |
| Last Modified: | 16 Dec 2021 06:34 |
| URI: | http://eprints.uthm.edu.my/id/eprint/4795 |
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