Possible influences of North Atlantic Oscillation on winter reference evapotranspiration in Iran
The North Atlantic Oscillation (NAO) is known to be responsible for most of inter-annual atmospheric variability over the Northern Hemisphere, particularly in Europe and the Mediterranean basin. Owing to the importance of reference evapotranspiration (ETo) in irrigation planning, water resource moni...
Published in: | Global and Planetary Change |
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Language: | English |
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Online Access: | https://biblio.ugent.be/publication/01HV696PT79BCSFS4FXP8KKG8E http://hdl.handle.net/1854/LU-01HV696PT79BCSFS4FXP8KKG8E https://doi.org/10.1016/j.gloplacha.2014.03.006 https://biblio.ugent.be/publication/01HV696PT79BCSFS4FXP8KKG8E/file/01HV77ACVP7H5ACQT5T4PC0FNM |
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ftunivgent:oai:archive.ugent.be:01HV696PT79BCSFS4FXP8KKG8E 2024-05-12T08:00:23+00:00 Possible influences of North Atlantic Oscillation on winter reference evapotranspiration in Iran Tabari, Hossein Hosseinzadehtalaei, Parisa Some'e, B. Shifteh Willems, Patrick 2014 application/pdf https://biblio.ugent.be/publication/01HV696PT79BCSFS4FXP8KKG8E http://hdl.handle.net/1854/LU-01HV696PT79BCSFS4FXP8KKG8E https://doi.org/10.1016/j.gloplacha.2014.03.006 https://biblio.ugent.be/publication/01HV696PT79BCSFS4FXP8KKG8E/file/01HV77ACVP7H5ACQT5T4PC0FNM eng eng ELSEVIER https://biblio.ugent.be/publication/01HV696PT79BCSFS4FXP8KKG8E http://hdl.handle.net/1854/LU-01HV696PT79BCSFS4FXP8KKG8E http://doi.org/10.1016/j.gloplacha.2014.03.006 https://biblio.ugent.be/publication/01HV696PT79BCSFS4FXP8KKG8E/file/01HV77ACVP7H5ACQT5T4PC0FNM No license (in copyright) info:eu-repo/semantics/restrictedAccess GLOBAL AND PLANETARY CHANGE ISSN: 0921-8181 ISSN: 1872-6364 reference evapotranspiration variability NAO index Spearman's rho test correlation time lag Iran FAO PENMAN-MONTEITH ARCTIC OSCILLATION SEMIARID REGIONS TREND ANALYSIS MISSING DATA MIDDLE-EAST CLIMATE PRECIPITATION TEMPERATURE VARIABILITY journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2014 ftunivgent https://doi.org/10.1016/j.gloplacha.2014.03.006 2024-04-17T14:01:36Z The North Atlantic Oscillation (NAO) is known to be responsible for most of inter-annual atmospheric variability over the Northern Hemisphere, particularly in Europe and the Mediterranean basin. Owing to the importance of reference evapotranspiration (ETo) in irrigation planning, water resource monitoring and management, we assessed the impact of the NAO on the ETo variability during the winter months from December to March in Iran. The Penman-Monteith FAO 56 method was applied to estimate ETo based on meteorological data from 41 synoptic stations during a period of 40 years (1966-2005). The correlation between the monthly NAO index and the ET time series was computed using the Spearman's rho test for time lags from 0 to 6 months. The simultaneous and lag correlation analyses demonstrated that the winter ETo series over Iran had negative correlations with the NAO index at almost all the stations. The highest negative correlation of 0.53 was observed between the January ETo series and the August NAO atTabriz station located in the northwest of Iran, whereas the highest positive correlation of 0.55 was found between the January ETo series and the simultaneous NAO at Bandar-Lengeh station which is situated on the northern coast of the Persian Gulf. Averaged over the 41 stations, the winter ETo values during the negative phase of the NAO were about 3% higher than those during the positive phase. (C) 2014 Elsevier B.V. All rights reserved. Article in Journal/Newspaper Arctic North Atlantic North Atlantic oscillation Ghent University Academic Bibliography Arctic Rho ENVELOPE(-63.000,-63.000,-64.300,-64.300) Global and Planetary Change 117 28 39 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
reference evapotranspiration variability NAO index Spearman's rho test correlation time lag Iran FAO PENMAN-MONTEITH ARCTIC OSCILLATION SEMIARID REGIONS TREND ANALYSIS MISSING DATA MIDDLE-EAST CLIMATE PRECIPITATION TEMPERATURE VARIABILITY |
spellingShingle |
reference evapotranspiration variability NAO index Spearman's rho test correlation time lag Iran FAO PENMAN-MONTEITH ARCTIC OSCILLATION SEMIARID REGIONS TREND ANALYSIS MISSING DATA MIDDLE-EAST CLIMATE PRECIPITATION TEMPERATURE VARIABILITY Tabari, Hossein Hosseinzadehtalaei, Parisa Some'e, B. Shifteh Willems, Patrick Possible influences of North Atlantic Oscillation on winter reference evapotranspiration in Iran |
topic_facet |
reference evapotranspiration variability NAO index Spearman's rho test correlation time lag Iran FAO PENMAN-MONTEITH ARCTIC OSCILLATION SEMIARID REGIONS TREND ANALYSIS MISSING DATA MIDDLE-EAST CLIMATE PRECIPITATION TEMPERATURE VARIABILITY |
description |
The North Atlantic Oscillation (NAO) is known to be responsible for most of inter-annual atmospheric variability over the Northern Hemisphere, particularly in Europe and the Mediterranean basin. Owing to the importance of reference evapotranspiration (ETo) in irrigation planning, water resource monitoring and management, we assessed the impact of the NAO on the ETo variability during the winter months from December to March in Iran. The Penman-Monteith FAO 56 method was applied to estimate ETo based on meteorological data from 41 synoptic stations during a period of 40 years (1966-2005). The correlation between the monthly NAO index and the ET time series was computed using the Spearman's rho test for time lags from 0 to 6 months. The simultaneous and lag correlation analyses demonstrated that the winter ETo series over Iran had negative correlations with the NAO index at almost all the stations. The highest negative correlation of 0.53 was observed between the January ETo series and the August NAO atTabriz station located in the northwest of Iran, whereas the highest positive correlation of 0.55 was found between the January ETo series and the simultaneous NAO at Bandar-Lengeh station which is situated on the northern coast of the Persian Gulf. Averaged over the 41 stations, the winter ETo values during the negative phase of the NAO were about 3% higher than those during the positive phase. (C) 2014 Elsevier B.V. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Tabari, Hossein Hosseinzadehtalaei, Parisa Some'e, B. Shifteh Willems, Patrick |
author_facet |
Tabari, Hossein Hosseinzadehtalaei, Parisa Some'e, B. Shifteh Willems, Patrick |
author_sort |
Tabari, Hossein |
title |
Possible influences of North Atlantic Oscillation on winter reference evapotranspiration in Iran |
title_short |
Possible influences of North Atlantic Oscillation on winter reference evapotranspiration in Iran |
title_full |
Possible influences of North Atlantic Oscillation on winter reference evapotranspiration in Iran |
title_fullStr |
Possible influences of North Atlantic Oscillation on winter reference evapotranspiration in Iran |
title_full_unstemmed |
Possible influences of North Atlantic Oscillation on winter reference evapotranspiration in Iran |
title_sort |
possible influences of north atlantic oscillation on winter reference evapotranspiration in iran |
publisher |
ELSEVIER |
publishDate |
2014 |
url |
https://biblio.ugent.be/publication/01HV696PT79BCSFS4FXP8KKG8E http://hdl.handle.net/1854/LU-01HV696PT79BCSFS4FXP8KKG8E https://doi.org/10.1016/j.gloplacha.2014.03.006 https://biblio.ugent.be/publication/01HV696PT79BCSFS4FXP8KKG8E/file/01HV77ACVP7H5ACQT5T4PC0FNM |
long_lat |
ENVELOPE(-63.000,-63.000,-64.300,-64.300) |
geographic |
Arctic Rho |
geographic_facet |
Arctic Rho |
genre |
Arctic North Atlantic North Atlantic oscillation |
genre_facet |
Arctic North Atlantic North Atlantic oscillation |
op_source |
GLOBAL AND PLANETARY CHANGE ISSN: 0921-8181 ISSN: 1872-6364 |
op_relation |
https://biblio.ugent.be/publication/01HV696PT79BCSFS4FXP8KKG8E http://hdl.handle.net/1854/LU-01HV696PT79BCSFS4FXP8KKG8E http://doi.org/10.1016/j.gloplacha.2014.03.006 https://biblio.ugent.be/publication/01HV696PT79BCSFS4FXP8KKG8E/file/01HV77ACVP7H5ACQT5T4PC0FNM |
op_rights |
No license (in copyright) info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.gloplacha.2014.03.006 |
container_title |
Global and Planetary Change |
container_volume |
117 |
container_start_page |
28 |
op_container_end_page |
39 |
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1798842259175636992 |