Calibration and Evaluation of Alternative Methods for Reliable Estimation of Reference Evapotranspiration in South Korea
Abstract
:1. Introduction
2. Materials and Methods
2.1. Study Area and Data
2.2. Method for Estimating Reference ET and Deriving Calibration Coefficients
3. Results
3.1. Derivation of Calibration Coefficients by Sub-Basin
3.2. Comparison of Reference ET before and after Calibration
3.3. Evaluation of Reference ET at Sites Using Sub-Basin Calibration Coefficients
4. Discussion
4.1. Performance of Calibration
4.2. Implications for Water Resource Management and Agricultural Planning
4.3. Limitations and Considerations
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Literature | Site | Monthly Deviations of Reference ET Compared to FAO PM (mm) | |
---|---|---|---|
Before Calibration | After Calibration | ||
Kim et al. [6] | Daegwallyeong (100) | −33.9~+41.6 | −11.0~+0.3 |
Seoul (108) | −27.3~+83.1 | −5.5~+0.3 | |
Gwangju (156) | −20.9~+80.1 | −2.5~+0.4 | |
Busan (159) | −39.7~+65.7 | −2.0~+0.7 | |
This study | Daegwallyeong (100) | −33.6~+42.5 | −16.5~+3.7 |
Seoul (108) | −27.4~+82.5 | −6.1~+0.4 | |
Gwangju (156) | −21.2~+81.7 | −2.0~+1.3 | |
Busan (159) | −40.0~+65.7 | −8.1~+2.8 |
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Kim, C.-G.; Lee, J.; Lee, J.-E.; Chung, I.-M. Calibration and Evaluation of Alternative Methods for Reliable Estimation of Reference Evapotranspiration in South Korea. Water 2024, 16, 2471. https://doi.org/10.3390/w16172471
Kim C-G, Lee J, Lee J-E, Chung I-M. Calibration and Evaluation of Alternative Methods for Reliable Estimation of Reference Evapotranspiration in South Korea. Water. 2024; 16(17):2471. https://doi.org/10.3390/w16172471
Chicago/Turabian StyleKim, Chul-Gyum, Jeongwoo Lee, Jeong-Eun Lee, and Il-Moon Chung. 2024. "Calibration and Evaluation of Alternative Methods for Reliable Estimation of Reference Evapotranspiration in South Korea" Water 16, no. 17: 2471. https://doi.org/10.3390/w16172471