Articles | Volume 9, issue 2
Review article
25 Aug 2017
Review article |  | 25 Aug 2017

High-resolution global grids of revised Priestley–Taylor and Hargreaves–Samani coefficients for assessing ASCE-standardized reference crop evapotranspiration and solar radiation

Vassilis G. Aschonitis, Dimitris Papamichail, Kleoniki Demertzi, Nicolo Colombani, Micol Mastrocicco, Andrea Ghirardini, Giuseppe Castaldelli, and Elisa-Anna Fano

Related authors

Correcting Thornthwaite potential evapotranspiration using a global grid of local coefficients to support temperature-based estimations of reference evapotranspiration and aridity indices
Vassilis Aschonitis, Dimos Touloumidis, Marie-Claire ten Veldhuis, and Miriam Coenders-Gerrits
Earth Syst. Sci. Data, 14, 163–177,,, 2022
Short summary
Relations between environmental gradients and diversity indices of benthic invertebrates in lotic systems of northern Italy
V. G. Aschonitis, G. Castaldelli, and E. A. Fano
Web Ecol., 16, 13–15,,, 2016
Short summary

Related subject area

Twelve years of profile soil moisture and temperature measurements in Twente, the Netherlands
Rogier van der Velde, Harm-Jan F. Benninga, Bas Retsios, Paul C. Vermunt, and M. Suhyb Salama
Earth Syst. Sci. Data, 15, 1889–1910,,, 2023
Short summary
Shallow-groundwater-level time series and a groundwater chemistry survey from a boreal headwater catchment, Krycklan, Sweden
Jana Erdbrügger, Ilja van Meerveld, Jan Seibert, and Kevin Bishop
Earth Syst. Sci. Data, 15, 1779–1800,,, 2023
Short summary
Weekly high-resolution multi-spectral and thermal uncrewed-aerial-system mapping of an alpine catchment during summer snowmelt, Niwot Ridge, Colorado
Oliver Wigmore and Noah P. Molotch
Earth Syst. Sci. Data, 15, 1733–1747,,, 2023
Short summary
Nunataryuk field campaigns: understanding the origin and fate of terrestrial organic matter in the coastal waters of the Mackenzie Delta region
Martine Lizotte, Bennet Juhls, Atsushi Matsuoka, Philippe Massicotte, Gaëlle Mével, David Obie James Anikina, Sofia Antonova, Guislain Bécu, Marine Béguin, Simon Bélanger, Thomas Bossé-Demers, Lisa Bröder, Flavienne Bruyant, Gwénaëlle Chaillou, Jérôme Comte, Raoul-Marie Couture, Emmanuel Devred, Gabrièle Deslongchamps, Thibaud Dezutter, Miles Dillon, David Doxaran, Aude Flamand, Frank Fell, Joannie Ferland, Marie-Hélène Forget, Michael Fritz, Thomas J. Gordon, Caroline Guilmette, Andrea Hilborn, Rachel Hussherr, Charlotte Irish, Fabien Joux, Lauren Kipp, Audrey Laberge-Carignan, Hugues Lantuit, Edouard Leymarie, Antonio Mannino, Juliette Maury, Paul Overduin, Laurent Oziel, Colin Stedmon, Crystal Thomas, Lucas Tisserand, Jean-Éric Tremblay, Jorien Vonk, Dustin Whalen, and Marcel Babin
Earth Syst. Sci. Data, 15, 1617–1653,,, 2023
Short summary
Integrated ecohydrological hydrometric and stable water isotope data of a drought-sensitive mixed land use lowland catchment
Doerthe Tetzlaff, Aaron Smith, Lukas Kleine, Hauke Daempfling, Jonas Freymueller, and Chris Soulsby
Earth Syst. Sci. Data, 15, 1543–1554,,, 2023
Short summary

Cited articles

Abtew, W.: Evapotranspiration measurements and methoding for three wetland systems in South Florida, J. Am. Water Resour. As., 32, 465–473, 1996.
Ahooghalandari, M., Khiadani, M., and Jahromi, M. E.: Developing Equations for Estimating Reference Evapotranspiration in Australia, Water Resour. M., 30, 3815–3828, 2016.
Ahooghalandari, M., Khiadani, M., and Jahromi, M. E.: Calibration of Valiantzas' reference evapotranspiration equations for the Pilbara region, Western Australia, Theor. Appl. Climatol., 128, 845–856, 2017.
Allen, R. G., Pereira, L. S., Raes, D., and Smith, M.: Crop Evapotranspiration: Guidelines for computing crop water requirements, Irrigation and Drainage Paper 56, Food and Agriculture Organization of the United Nations, Rome, 1998.
Allen, R. G., Walter, I. A., Elliott, R., Howell, T., Itenfisu, D., and Jensen M.: The ASCE standardized reference evapotranspiration equation. Final Report (ASCE-EWRI) Pr., in: Environmental and Water Resources Institute, 2005, edited by: Allen, R. G., Walter, I. A., Elliott, R., Howell, T., Itenfisu, D., and Jensen, M., Task Committee on Standardization of Reference Evapotranspiration of the Environmental and Water Resources Institute, 2005.
Short summary
The study provides high-resolution global grids of revised annual coefficients for the Priestley–Taylor and Hargreaves–Samani evapotranspiration methods after calibration based on the ASCE-standardized Penman–Monteith method. Additional analysis was also performed in order to develop respective coefficients for the solar radiation formula of Hargreaves–Samani. The results of the study can be used to improve evapotranspiration assessment for regions with limited climatic data.