Assessment of reference evapotranspiration under climate change conditions: method comparison and practical applications

Gulomov, Daulet, Amanov, Baxodirjon, Гуломов, Даулет, Аманов, Баходиржон, Gulomov, Daulet, Amanov, Baxodirjon

Research Focus · 2026-yil

Annotatsiya

This study provides a comprehensive evaluation of methods for estimating reference evapotranspiration (ET₀) under climate change conditions. The analysis compares several widely used approaches, including the Hargreaves, Turc, Blaney–Criddle, and FAO-56 Penman–Monteith methods, as well as the satellite-based Manna application. Meteorological data from the Tuyabog'iz meteorological station located in the Tashkent region of Uzbekistan were analyzed for the period 2021–2023. The methods were assessed in terms of estimation accuracy data requirements, and their suitability for application under local arid climatic conditions. The results indicate that the PM-CROPWAT method estimated seasonal reference evapotranspiration at 935.68 mm, whereas the Manna application produced a value of 706.60 mm, corresponding to a difference of −24.5%. The Hargreaves and Turc methods significantly overestimated ET₀ values by approximately +87% and +77%, respectively. A strong statistical relationship was observed between the monthly values obtained from Manna and CROPWAT, with a coefficient of determination of R²=0.913. The findings demonstrate that the FAO CROPWAT 8.0 software represents an effective tool for the practical calculation of reference evapotranspiration and irrigation scheduling. The results of this research contribute to improving water resource management and optimizing irrigation practices under conditions of increasing climatic variability.

Maqola ma’lumotlari
MualliflarGulomov, Daulet, Amanov, Baxodirjon, Гуломов, Даулет, Аманов, Баходиржон, Gulomov, Daulet, Amanov, Baxodirjon
JurnalResearch Focus
NashriyotВетеринария ИТИ ва “Илм-фан ва инновациялар академияси” МЧЖ
ISSN2181-3833
Nashr sanasi2026-04-05
Jild5
Son3
Betlar21-30
TilIngliz
Ilmiy sohaVeterinariya
DOI10.66073/researchfocus.v5i3.2338
Indeksga qo‘shilgan2026-09-08

DOI: 10.66073/researchfocus.v5i3.2338 · Maqolaning asl sahifasi

Kalit so‘zlar

reference evapotranspiration, climate change, Penman–Monteith method Hargreaves method, satellite data, CROPWAT, irrigation scheduling, эталон эвапотранспирация, иқлим ўзгариши, Пенман–Монтейт усули Харгривз усули, сунъий йўлдош маълумотлари, CROPWAT, суғоришни режалаштириш, эталонная эвапотранспирация, изменение климата, метод Пенмана–Монтейта, метод Харгривза, спутниковые данные, CROPWAT, планирование орошения

Ilmiy soha

Veterinariya

Iqtibos keltirish

APAGulomov, Daulet, Amanov, Baxodirjon, Гуломов, Даулет, Аманов, Баходиржон, Gulomov, Daulet, & Amanov, Baxodirjon (2026). ASSESSMENT OF REFERENCE EVAPOTRANSPIRATION UNDER CLIMATE CHANGE CONDITIONS: METHOD COMPARISON AND PRACTICAL APPLICATIONS. Research Focus, 5(3), 21-30. https://doi.org/10.66073/researchfocus.v5i3.2338
GOST (OAK)Gulomov, Daulet va b. ASSESSMENT OF REFERENCE EVAPOTRANSPIRATION UNDER CLIMATE CHANGE CONDITIONS: METHOD COMPARISON AND PRACTICAL APPLICATIONS // Research Focus. – 2026. – T. 5, № 3. – P. 21-30. – DOI: 10.66073/researchfocus.v5i3.2338.
MLAGulomov, Daulet, Amanov, Baxodirjon, Гуломов, Даулет, Аманов, Баходиржон, Gulomov, Daulet, and Amanov, Baxodirjon. “ASSESSMENT OF REFERENCE EVAPOTRANSPIRATION UNDER CLIMATE CHANGE CONDITIONS: METHOD COMPARISON AND PRACTICAL APPLICATIONS.” Research Focus, 5(3), 21-30, 2026. https://doi.org/10.66073/researchfocus.v5i3.2338
ChicagoGulomov, Daulet, Amanov, Baxodirjon, Гуломов, Даулет, Аманов, Баходиржон, Gulomov, Daulet, and Amanov, Baxodirjon. “ASSESSMENT OF REFERENCE EVAPOTRANSPIRATION UNDER CLIMATE CHANGE CONDITIONS: METHOD COMPARISON AND PRACTICAL APPLICATIONS.” Research Focus, 5(3), 21-30 (2026). https://doi.org/10.66073/researchfocus.v5i3.2338
HarvardGulomov, Daulet, Amanov, Baxodirjon, Гуломов, Даулет, Аманов, Баходиржон, Gulomov, Daulet, and Amanov, Baxodirjon (2026) ‘ASSESSMENT OF REFERENCE EVAPOTRANSPIRATION UNDER CLIMATE CHANGE CONDITIONS: METHOD COMPARISON AND PRACTICAL APPLICATIONS’, Research Focus, 5(3), 21-30. https://doi.org/10.66073/researchfocus.v5i3.2338
BibTeX
@article{gulomovdaulet2026,
  title = {ASSESSMENT OF REFERENCE EVAPOTRANSPIRATION UNDER CLIMATE CHANGE CONDITIONS: METHOD COMPARISON AND PRACTICAL APPLICATIONS},
  author = {Gulomov, Daulet and Amanov, Baxodirjon and Гуломов, Даулет and Аманов, Баходиржон and Gulomov, Daulet and Amanov, Baxodirjon},
  journal = {Research Focus},
  year = {2026},
  volume = {5},
  number = {3},
  pages = {21-30},
  doi = {10.66073/researchfocus.v5i3.2338},
  url = {https://doi.org/10.66073/researchfocus.v5i3.2338}
}

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