Simulation of Actual Evapotranspiration and Evaluation of Three Complementary Relationships in Three Parallel River Basins

Yongshan Jiang and Zhaofei Liu ()
Additional contact information
Yongshan Jiang: Chinese Academy of Sciences
Zhaofei Liu: Chinese Academy of Sciences

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), 2022, vol. 36, issue 13, No 14, 5107-5126

Abstract: Abstract Based on observed precipitation and runoff data, the monthly actual evapotranspiration (ETa) was calculated using the hydrological budget balance method in three parallel river basins. The performance of three complementary relationship methods, namely, the nonlinear advection-aridity (non-AA) method, generalized complementary relationship method (B2015), and sigmoid generalized complementary function (H2018), for simulating ETa was evaluated. The evaluation results showed that the three methods could accurately simulate monthly ETa series. The Nash–Sutcliffe efficiency coefficients between the monthly ETa simulated by the non-AA, B2015, and H2018 methods and the water balance-derived ETa were 0.74, 0.78, and 0.79, respectively. The correlation coefficients were 0.84, 0.89, and 0.90, and the root mean square errors were 10.76 mm mon−1, 10.01 mm mon−1, and 9.78 mm mon−1, respectively. ETa increased spatially from the upstream region to the downstream region at the catchment scale. Annual ETa simulated by the non-AA, B2015, and H2018 models showed significant increasing trends during the years 1956–2018 in the basins, with the increasing magnitudes of 1.53 mm/a, 1.66 mm/a, and 1.47 mm/a, respectively. Research on the influence of meteorological factors and ETa showed a positive correlation between ETa and precipitation, temperature, wind, and hours of sunshine, with average correlation coefficients of 0.40, 0.64, 0.63, and 0.72, respectively. The value between ETa and relative humidity was –0.38. ETa in the basins was highly sensitive to temperature, wind speed, and hours of sunshine, with average sensitivity coefficients of 0.26, 0.21, and 0.27, respectively. Moreover, it was moderately sensitive to relative humidity, with a sensitivity of –0.18.

Keywords: Generalized complementary relationship; Hydrological budget balance; Actual evapotranspiration; Climate change (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://link.springer.com/10.1007/s11269-022-03294-y Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:waterr:v:36:y:2022:i:13:d:10.1007_s11269-022-03294-y

Ordering information: This journal article can be ordered from
http://www.springer.com/economics/journal/11269

DOI: 10.1007/s11269-022-03294-y

Access Statistics for this article

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA) is currently edited by G. Tsakiris

More articles in Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA) from Springer, European Water Resources Association (EWRA)
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().