Harmonization and comparative evaluation of evapotranspiration estimates in data scarce conditions

Kumari, N; Srivastava, A

Harmonization and comparative evaluation of evapotranspiration estimates in data scarce conditions

Kumari, N Srivastava, A

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Publication Type:: Journal Article
Citation:: Indian Journal of Ecology, 2018, 45, (2), pp. 305-310
Issue Date:: 2018-06-01

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Field	Value	Language
dc.contributor.author	Kumari, N
dc.contributor.author	Srivastava, A https://orcid.org/0000-0002-3963-265X
dc.date.accessioned	2022-09-04T22:11:05Z
dc.date.available	2022-09-04T22:11:05Z
dc.date.issued	2018-06-01
dc.identifier.citation	Indian Journal of Ecology, 2018, 45, (2), pp. 305-310
dc.identifier.issn	0304-5250
dc.identifier.uri	http://hdl.handle.net/10453/161348
dc.description.abstract	For efficient irrigation water management and hydro-meteorological studies at both the field and catchment scales, a need exists to evaluate the existing évapotranspiration (ET) estimation methods under varied physiographical and data availability conditions. With the limited availability of meteorological variables at basin-scale in many remote areas, ET estimation is becoming a challenging task. There is a scope to test the ET methods by FAO-56 PM method, the benchmark method with Hargreaves raw model. All of them were inter-compared by taking its basin average. Further, FAO-56 PM and Hargreaves raw model were harmonized by daily and monthly correction factor (C, ) for five year period and was verified by using statistical indicators namely, index of agreement (d) and Pearson correlation coefficient (r) as well as graphical indicators. The harmonized estimators of less data intensive methods relative to FAO PM provides satisfactory results in all six stations after applying the correction factor.
dc.language	en
dc.relation.ispartof	Indian Journal of Ecology
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0602 Ecology
dc.title	Harmonization and comparative evaluation of evapotranspiration estimates in data scarce conditions
dc.type	Journal Article
utslib.citation.volume	45
utslib.for	0602 Ecology
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Life Sciences
utslib.copyright.status	closed_access	*
dc.date.updated	2022-09-04T22:11:04Z
pubs.issue	2
pubs.publication-status	Published
pubs.volume	45
utslib.citation.issue	2

Abstract:

For efficient irrigation water management and hydro-meteorological studies at both the field and catchment scales, a need exists to evaluate the existing évapotranspiration (ET) estimation methods under varied physiographical and data availability conditions. With the limited availability of meteorological variables at basin-scale in many remote areas, ET estimation is becoming a challenging task. There is a scope to test the ET methods by FAO-56 PM method, the benchmark method with Hargreaves raw model. All of them were inter-compared by taking its basin average. Further, FAO-56 PM and Hargreaves raw model were harmonized by daily and monthly correction factor (C, ) for five year period and was verified by using statistical indicators namely, index of agreement (d) and Pearson correlation coefficient (r) as well as graphical indicators. The harmonized estimators of less data intensive methods relative to FAO PM provides satisfactory results in all six stations after applying the correction factor.

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http://hdl.handle.net/10453/161348