Estimate of global radiation by the Angström-Prescott model for Tocantins
DOI:
https://doi.org/10.33448/rsd-v9i7.4139Keywords:
Global radiation; Empirical model; Heat stroke.Abstract
The objective of the work was to determine the coefficients (a and b) of the Angström-Prescott equation and to determine the error in the estimate of global radiation for cities in the state of Tocantins. Meteorological data were obtained from the National Meteorological Institute (INMET) for the cities of Araguaína, Palmas, Pedro Afonso and Peixe, which were subjected to a filter and subsequently separated 70% for the generation of coefficients and 30% for validation (MBE, RMSE ed). The linear coefficients (a) ranged from 0.2291 to 0.3074 and angular (b) from 0.4295 to 0.4799 with a correlation between global radiation and insolation above 90%, where in the validation the error (MBE) ranged from 0.01 to 0.06 MJ m-2 d-1, spreading from 1.59 to 1.87 MJ m-2 d-1 and concordance index from 0.95 to 0.96. Individual Angström-Prescott coefficients can be used for each city evaluated with a correlation above 90%.
References
Allen RG, Pereira LS, Raes, D & Smith M. (1998). Crop evapotranspiration: guidelines for computing crop water requirements. FAO Irrigation and Drainage Paper 56. Rome, Italy. 300 p. Recuperado em 15 de março, 2020, de http://www.fao.org/3/x0490e/x0490e00.htm.
Almorox J, Arnaldo JA, Bailek N, Martí P. (2020). Adjustment of the Angstrom-Prescott equation from Campbell-Stokes and Kipp-Zonen sunshine measures at different timescales in Spain. Renewable Energy, 154, 337-50.
Angstrom A. (1924). Solar and Terrestrial Radiation. Quarterly Journal of the Royal Meteorological Society, 50, 121-26.
Asilevi PJ, Quansah E, Amekudzi LK, Annor T & Klutse NAB. (2019). Modeling the spatial distribution of Global Solar Radiation (GSR) over Ghana using the Angström-Prescott sunshine duration model. Scientific African, 4.
Bortolon ESO, Souza JP, Bortolon L, Evangelista BA & Donagemma GK. (2016). Caracterização climática da região de Pedro Afonso-TO no período de 1985 a 2014. Embrapa Pesca e Aquicultura, Palmas, TO. Recuperado em 15 de março, 2020, de https://ainfo.cnptia.embrapa.br/digital/bitstream/item/151623/1/CNPASA-2016-doc25.pdf.
IBGE. (2019). Censo agropecuário: resultados definitivos 2017. IBGE - Instituto Brasileiro de Geografia e Estatística. Recuperado em 10 de março, 2020, de https://biblioteca.ibge.gov.br/visualizacao/periodicos/3096/agro_2017_to.pdf >.
Liu X, Xu Y, Zhong X, Zhang W, Porter JR, Liu W. (2012) Assessing models for parameters of the Angström-Prescott formula in China. Applied Energy, 96, 327-38.
Mota FS, Beirsdorf MIC, Acosta MJC. (1977). Estimates of solar radiation in Brazil. Agricultural Meteorology, 18 (4), 241-54.
Prescott J. (1940). Evaporation from a water surface in relation to solar radiation. Transactions of the Royal Society of South Australia, 64, 114-8.
Pavão VM, Biudes MS, Querino CAS, Machado NG, Pavão LL & Silva PCBS. (2018). Surface solar radiation in a tropical area estimated from different models. Revista Brasileira de Climatologia, 23 (14), 1-17.
Souza AP, Martim CC, Joseph W, Bouvié L & Borella DR. (2019). Equação de angström-prescott na estimativa da radiação global em diferentes latitudes da amazônia. Congresso Brasileiro de Agrometeorologia.
Souza JL, Lyra GB, Santos CM, Junior RAF, Tiba C, Lyra GB & Lemes MAM. (2016). Empirical models of daily and monthly global solar irradiation using sunshine duration for Alagoas State, Northeastern Brazil. Sustainable Energy Technologies and Assessments, 14, 35-45.
WMO. (2014). Guide to meteorological instruments and methods of observation. Organização Mundial de Meteorologia, 1177 p. Recuperado em 15 de março, 2020, de https://library.wmo.int/doc_num.php?explnum_id=10179.
Downloads
Published
How to Cite
Issue
Section
License
Authors who publish with this journal agree to the following terms:
1) Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
2) Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
3) Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.
