Harmonic Analysis of the Spatiotemporal Pattern of Thunderstorms in Iran (1961–2010)
Publisher's version (útgefin grein) The current study aimed at investigating cycles and the spatial autocorrelation pattern of anomalies of thunderstorms in Iran during different periods from 1961 to 2010. In this analysis, 50-year periods (1961–2010) of thunderstorm codes have been collected f...
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Online Access: | https://hdl.handle.net/20.500.11815/2106 https://doi.org/10.1155/2019/1612503 |
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ftopinvisindi:oai:opinvisindi.is:20.500.11815/2106 2023-05-15T16:51:38+02:00 Harmonic Analysis of the Spatiotemporal Pattern of Thunderstorms in Iran (1961–2010) Sabziparvar, Ali Akbar Mir Mousavi, Seyed Hossein Karampour, Mostafa Doostkamian, Mehdi Haghighi, Esmaeil Rousta, Iman Olafsson, Haraldur SARIF, MD OMAR Gupta, Rajan Dev Moniruzzaman, Md Hasan, Khairul Ghasemi, Ali Raunvísindadeild (HÍ) Faculty of Physical Sciences (UI) Verkfræði- og náttúruvísindasvið (HÍ) School of Engineering and Natural Sciences (UI) Háskóli Íslands University of Iceland 2019-02-11 1-14 https://hdl.handle.net/20.500.11815/2106 https://doi.org/10.1155/2019/1612503 en eng Hindawi Limited Advances in Meteorology;2019 https://www.hindawi.com/journals/amete/2019/1612503/ Ali Akbar Sabziparvar, Seyed Hossein Mir Mousavi, Mostafa Karampour, Mehdi Doostkamian, Esmaeil Haghighi, Iman Rousta, Haraldur Olafsson, Md Omar Sarif, Rajan Dev Gupta, Md Moniruzzaman, Khairul Hasan, Ali Ghasemi, "Harmonic Analysis of the Spatiotemporal Pattern of Thunderstorms in Iran (1961–2010)", Advances in Meteorology, vol. 2019, Article ID 1612503, 14 pages, 2019. https://doi.org/10.1155/2019/1612503 1687-9309 1687-9317 (eISSN) https://hdl.handle.net/20.500.11815/2106 Advances in Meteorology doi:10.1155/2019/1612503 info:eu-repo/semantics/openAccess Spatiotemporal Pattern Thunderstorms Iran Veðurfar Vindar GIS (geographic information systems) Landupplýsingakerfi info:eu-repo/semantics/article 2019 ftopinvisindi https://doi.org/20.500.11815/2106 https://doi.org/10.1155/2019/1612503 2022-11-18T06:52:01Z Publisher's version (útgefin grein) The current study aimed at investigating cycles and the spatial autocorrelation pattern of anomalies of thunderstorms in Iran during different periods from 1961 to 2010. In this analysis, 50-year periods (1961–2010) of thunderstorm codes have been collected from 283 synoptic stations of Meteorological Organization of Iran. The study period has been divided into five different decades (1961–1970, 1971–1980, 1981–1990, 1991–2000, and 2001–2010). Spectral analysis and Moran’s I were used to analyze cycles and the spatial autocorrelation pattern, respectively. Furthermore, in order to conduct the calculations, programming facilities of MATLAB have been explored. Finally, Surfer and GIS were employed to come up with the graphical depiction of the maps. The results showed that the maximum of positive anomalies mainly occurred in the northwestern and western parts of Iran due to their special topography, during all the five studied periods. On the other hand, the minimum of negative anomalies took place in central regions of the country because of lack of appropriate conditions (e.g., enough humidity). Moran’s I spatial analysis further confirmed these findings as Moran’s I depicts the positive and negative spatial autocorrelation patterns in line with negative and positive anomalies, respectively. However, in recent decades, this pattern has experienced a declining trend, especially in southern areas of Iran. The results of harmonic analysis indicated that mainly short-term and midterm cycles dominated Iran’s thunderstorms. Iman Rousta is deeply grateful to his supervisor (Haraldur Olafsson, Professor of Atmospheric Sciences, Department of Physics, University of Iceland, Institute for Atmospheric Sciences and Icelandic Meteorological Office (IMO)) for his great support, kind guidance, and encouragement. This work was financially supported by Vedurfelagid, Rannis, and Rannsoknastofa vedurfraedi. Peer Reviewed Article in Journal/Newspaper Iceland Opin vísindi (Iceland) Advances in Meteorology 2019 1 14 |
institution |
Open Polar |
collection |
Opin vísindi (Iceland) |
op_collection_id |
ftopinvisindi |
language |
English |
topic |
Spatiotemporal Pattern Thunderstorms Iran Veðurfar Vindar GIS (geographic information systems) Landupplýsingakerfi |
spellingShingle |
Spatiotemporal Pattern Thunderstorms Iran Veðurfar Vindar GIS (geographic information systems) Landupplýsingakerfi Sabziparvar, Ali Akbar Mir Mousavi, Seyed Hossein Karampour, Mostafa Doostkamian, Mehdi Haghighi, Esmaeil Rousta, Iman Olafsson, Haraldur SARIF, MD OMAR Gupta, Rajan Dev Moniruzzaman, Md Hasan, Khairul Ghasemi, Ali Harmonic Analysis of the Spatiotemporal Pattern of Thunderstorms in Iran (1961–2010) |
topic_facet |
Spatiotemporal Pattern Thunderstorms Iran Veðurfar Vindar GIS (geographic information systems) Landupplýsingakerfi |
description |
Publisher's version (útgefin grein) The current study aimed at investigating cycles and the spatial autocorrelation pattern of anomalies of thunderstorms in Iran during different periods from 1961 to 2010. In this analysis, 50-year periods (1961–2010) of thunderstorm codes have been collected from 283 synoptic stations of Meteorological Organization of Iran. The study period has been divided into five different decades (1961–1970, 1971–1980, 1981–1990, 1991–2000, and 2001–2010). Spectral analysis and Moran’s I were used to analyze cycles and the spatial autocorrelation pattern, respectively. Furthermore, in order to conduct the calculations, programming facilities of MATLAB have been explored. Finally, Surfer and GIS were employed to come up with the graphical depiction of the maps. The results showed that the maximum of positive anomalies mainly occurred in the northwestern and western parts of Iran due to their special topography, during all the five studied periods. On the other hand, the minimum of negative anomalies took place in central regions of the country because of lack of appropriate conditions (e.g., enough humidity). Moran’s I spatial analysis further confirmed these findings as Moran’s I depicts the positive and negative spatial autocorrelation patterns in line with negative and positive anomalies, respectively. However, in recent decades, this pattern has experienced a declining trend, especially in southern areas of Iran. The results of harmonic analysis indicated that mainly short-term and midterm cycles dominated Iran’s thunderstorms. Iman Rousta is deeply grateful to his supervisor (Haraldur Olafsson, Professor of Atmospheric Sciences, Department of Physics, University of Iceland, Institute for Atmospheric Sciences and Icelandic Meteorological Office (IMO)) for his great support, kind guidance, and encouragement. This work was financially supported by Vedurfelagid, Rannis, and Rannsoknastofa vedurfraedi. Peer Reviewed |
author2 |
Raunvísindadeild (HÍ) Faculty of Physical Sciences (UI) Verkfræði- og náttúruvísindasvið (HÍ) School of Engineering and Natural Sciences (UI) Háskóli Íslands University of Iceland |
format |
Article in Journal/Newspaper |
author |
Sabziparvar, Ali Akbar Mir Mousavi, Seyed Hossein Karampour, Mostafa Doostkamian, Mehdi Haghighi, Esmaeil Rousta, Iman Olafsson, Haraldur SARIF, MD OMAR Gupta, Rajan Dev Moniruzzaman, Md Hasan, Khairul Ghasemi, Ali |
author_facet |
Sabziparvar, Ali Akbar Mir Mousavi, Seyed Hossein Karampour, Mostafa Doostkamian, Mehdi Haghighi, Esmaeil Rousta, Iman Olafsson, Haraldur SARIF, MD OMAR Gupta, Rajan Dev Moniruzzaman, Md Hasan, Khairul Ghasemi, Ali |
author_sort |
Sabziparvar, Ali Akbar |
title |
Harmonic Analysis of the Spatiotemporal Pattern of Thunderstorms in Iran (1961–2010) |
title_short |
Harmonic Analysis of the Spatiotemporal Pattern of Thunderstorms in Iran (1961–2010) |
title_full |
Harmonic Analysis of the Spatiotemporal Pattern of Thunderstorms in Iran (1961–2010) |
title_fullStr |
Harmonic Analysis of the Spatiotemporal Pattern of Thunderstorms in Iran (1961–2010) |
title_full_unstemmed |
Harmonic Analysis of the Spatiotemporal Pattern of Thunderstorms in Iran (1961–2010) |
title_sort |
harmonic analysis of the spatiotemporal pattern of thunderstorms in iran (1961–2010) |
publisher |
Hindawi Limited |
publishDate |
2019 |
url |
https://hdl.handle.net/20.500.11815/2106 https://doi.org/10.1155/2019/1612503 |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
Advances in Meteorology;2019 https://www.hindawi.com/journals/amete/2019/1612503/ Ali Akbar Sabziparvar, Seyed Hossein Mir Mousavi, Mostafa Karampour, Mehdi Doostkamian, Esmaeil Haghighi, Iman Rousta, Haraldur Olafsson, Md Omar Sarif, Rajan Dev Gupta, Md Moniruzzaman, Khairul Hasan, Ali Ghasemi, "Harmonic Analysis of the Spatiotemporal Pattern of Thunderstorms in Iran (1961–2010)", Advances in Meteorology, vol. 2019, Article ID 1612503, 14 pages, 2019. https://doi.org/10.1155/2019/1612503 1687-9309 1687-9317 (eISSN) https://hdl.handle.net/20.500.11815/2106 Advances in Meteorology doi:10.1155/2019/1612503 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/20.500.11815/2106 https://doi.org/10.1155/2019/1612503 |
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Advances in Meteorology |
container_volume |
2019 |
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14 |
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1766041745315856384 |