Skip to main content

Advertisement

Log in

Evaluating capabilities of the spline and cubic spline interpolation functions in reference evapotranspiration estimation implementing satellite image data

  • RESEARCH
  • Published:
Earth Science Informatics Aims and scope Submit manuscript

Abstract

One of the most critical parameters for estimating the water consumption of plants in water cycle, is the reference evapotranspiration (ET0), which allows more accurate prediction and planning of water resources. Also, formulating hydrological processes always has serious challenges. Therefore, taking advantages of satellite images can be a suitable way to compensate for the lack of meteorological information. Nevertheless, satellite data have intervals of several days, so in this research, by implementing the spline (S) and cubic spline (CS) interpolation methods, the extracted parameters of satellite images in the time intervals of several days were converted into daily scale. Then, by applying random forest (RF) algorithm and random forest optimized by genetic algorithm (GA-RF), the daily scale satellite parameters, including land surface temperature and normalized difference vegetation index, were used in 17 different combinations to estimate daily ET0 values. The obtained results showed that the accuracy of the estimated ET0 in Tabriz station by CS-RF-10 and S-RF-10 models and utilizing meteorological and satellite image parameters is higher than other implemented scenarios. In addition, statistical analysis of error parameters of CS-RF-10 (R2 = 0.988, RMSE = 0.362, NS = 0.986), S-RF-10 (R2 = 0.988, 0.364 = RMSE, NS = 0.987), S-GA-RF-10 (R2 = 0.990, RMSE = 0.333, NS = 0.989) and CS-GA-RF-10 (R2 = 0.990, RMSE = 0.334, NS = 0.989) indicated that the cubic spline interpolation method is more accurate than the standalone spline for estimating daily ET0. Conclusively, the findings of the current research revealed that by implementing the cubic spline interpolation method and applying random forest optimized with a genetic algorithm, daily ET0 values might be estimated with acceptable accuracy.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10

Similar content being viewed by others

Data availability

The obtained data can be made available on request of interested parties under the condition of approval of the request by the authors of the article.

References

Download references

Funding

The authors did not receive support from any organization for the submitted work.

Author information

Authors and Affiliations

Authors

Contributions

A: Data curation; formal analysis; investigation; methodology; validation; visualization; writing—original draft. B: Data curation; formal analysis; investigation; methodology; resources; visualization; supervision; writing—original draft. C: Conceptualization; Formal analysis; validation; visualization; writing—original draft. D: Conceptualization; Formal analysis; validation; visualization; writing—original draft.

Corresponding author

Correspondence to Saeed Samadianfard.

Ethics declarations

Competing interests

The authors declare no competing interests.

Additional information

Communicated by: R. Barzegar

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Amirzehni, P., Samadianfard, S., Nazemi, A. et al. Evaluating capabilities of the spline and cubic spline interpolation functions in reference evapotranspiration estimation implementing satellite image data. Earth Sci Inform 16, 3779–3795 (2023). https://doi.org/10.1007/s12145-023-01127-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12145-023-01127-z

Keywords

Navigation