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Apr 15, 2013

Erratum for “Standardization of Reference Evapotranspiration Models for a Subhumid Valley Rangeland in the Eastern Himalayas” by Bhabagrahi Sahoo, Imtisenla Walling, Bidyut C. Deka, and Bhagwati P. Bhatt

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Authors: Bhabagrahi Sahoo [email protected], Imtisenla Walling [email protected], Bidyut C. Deka [email protected], and Bhagwati P. Bhatt [email protected]Author Affiliations
Publication: Journal of Irrigation and Drainage Engineering
Volume 139, Issue 5
https://doi.org/10.1061/(ASCE)IR.1943-4774.0000567
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During composition, errors were introduced in Eqs. (2), (4), (7), (9), (11), (22), and (24) of the original paper. The correct equations are as follows.
FAO-24 radiation equation:
ETo=a+b(ΔΔ+γ)Rs
(2)
Hargreaves radiation model:
ETo=0.0135Rs(Tmean+17.8)
(4)
Jones-Ritchie model:
ETo=α[0.00387Rs(0.6Tmax+0.4Tmin+29)]
(7)
Makkink model:
ETo=0.61ΔRs/[2.45(Δ+γ)]−0.12
(9)
Turc model:
aT={1.0,if  RHmean≥50%1+(50−RHmean)/70,if  RHmean<50%
(11)
Pereira et al. pan coefficient:
Kpan=0.85(Δ+γ)/[Δ+γ(1+0.33U2)]
(22)
Raghuwanshi-Wallender pan coefficient:
Kp=0.5944+0.0242ln(F)−0.0583XU175425−0.1333XU425700−0.2083XU>700+0.0812XRH4070+0.1344XRH≥70
(24)
ASCE regrets these errors.

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Go to Journal of Irrigation and Drainage Engineering
Journal of Irrigation and Drainage Engineering
Volume 139 • Issue 5 • May 2013
Pages: 432

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© 2013 American Society of Civil Engineers.

History

Received: Oct 13, 2012
Accepted: Nov 21, 2012
Published online: Apr 15, 2013
Published in print: May 1, 2013

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Bhabagrahi Sahoo [email protected]
Assistant Professor, School of Water Resources, Indian Institute of Technology, Kharagpur 721 302, India; formerly, ICAR Research Complex for NEH Region, Nagaland Centre, Nagaland, India (corresponding author). E-mail: [email protected]
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Imtisenla Walling [email protected]
Technical Officer, Integrated Agro-met Advisory Services, ICAR Research Complex for NEH Region, Nagaland Centre, Jharnapani, Medziphema 797 106, Nagaland, India. E-mail: [email protected]
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Bidyut C. Deka [email protected]
Joint Director, ICAR Research Complex for NEH Region, Nagaland Centre, Jharnapani, Medziphema 797 106, Nagaland, India. E-mail: [email protected]
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Bhagwati P. Bhatt [email protected]
Director, ICAR Research Complex for Eastern Region, Patna 800 014, Bihar, India. E-mail: [email protected]
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