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Empirical model for the estimation of photosynthetically active radiation in the city of Chihuahua and its zone of influence

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Abstract 

Photosynthetically active radiation (PAR) (expressed in photosynthetic photon flux density, Qp) is an important parameter in different biological and ecological processes. Despite its importance, there is no worldwide network for its measurement. This paper analyzes the behavior of PAR in the period of 1 year, from April 2020 to March 2021, using the information collected from a meteorological station located in the city of Chihuahua, Mexico. The annual mean value of Qp at noon was 1820.1 μmol m−2 s−1; the annual mean value of Qp/Rs at noon was 1.96 μmol J−1; the annual mean daily of Qp was 42.9 mol m−2 day−1. The information collected throughout the year at the meteorological station was used to develop an empirical model to estimate Qp in Chihuahua City and its zone of influence. The developed model provided satisfactory estimations of Qp by having an MBE of 14.7 μmol m−2 s−1, RMSE of 22.8 μmol m−2 s−1, and R2 > 0.99.

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Data availability

All data created or used during this study are available from the Instituto Tecnológico de Chihuahua Data Archive at https://posgradoitch.mx/categoria/dataset-par-chihuahua/.

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Funding

The authors wish to thank the financial support of Tecnológico Nacional de México and Consejo Nacional de Ciencia y Tecnología (México).

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All the authors contributed to the study conception and design. Data was prepared by MMANG and LFCM. The manuscript was written by MMANG. All the authors read and approved the final manuscript.

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Correspondence to Moisés Miguel Angel Noriega-Gardea.

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Noriega-Gardea, M.M.A., Corral-Martínez, L.F., Anguiano-Morales, M. et al. Empirical model for the estimation of photosynthetically active radiation in the city of Chihuahua and its zone of influence. Theor Appl Climatol 152, 1221–1229 (2023). https://doi.org/10.1007/s00704-023-04446-9

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  • DOI: https://doi.org/10.1007/s00704-023-04446-9

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