SPECTRAL ANALYSIS OF PERIODIC BEHAVIOR OF LAKE URMIA WATER LEVEL TIME SERIES

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JALILI SH.; MORID S.; BANAKAR A.; NAMDAR GHANBARI R.

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ISSN: 2588-4824

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Journal: Journal of Water and Soil Conservation Year:2012 | Volume:19 | Issue:4 Page(s): 25-46

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Title

SPECTRAL ANALYSIS OF PERIODIC BEHAVIOR OF LAKE URMIA WATER LEVEL TIME SERIES

Author(s)

JALILI SH. | MORID S. | BANAKAR A. | NAMDAR GHANBARI R. | Issue Writer Certificate

Keywords

LAKE URMIAQ1

LEVEL TIME SERIESQ2

SPECTRAL ANALYSISQ2

NOISEQ2

PERIODIC OSCILLATIONSQ2

Abstract

The Urmia Lake is one of the important water bodies in the northwest of Iran that has a significant role in the economy and environment of the region. Recently, the lake is faced with a critical level reduction, which makes it important to evaluate the causes. In this regard understanding of the Lake's level behavior is necessary, which can be applied for mitigation measure to save it. This subject constructs objective of the present paper that applies the SPECTRAL ANALYSIS techniques to investigate harmonic periods of the Lake LEVEL TIME SERIES. For this, a combination of Multi Taper Method of spectral estimation and Singular SPECTRAL ANALYSIS were implemented. The results showed significant long-term periods in time series. However due to limitation in the record length, the frequencies longer than about 20 years were applicable for the analyses. Also, comparing the reconstructed time series of harmonic series with the original time series showed that although, harmonic oscillations are effective on level behavior of the lake, but declines of the recent years are not completely describable by these periodicities.

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APA: Copy

JALILI, SH., MORID, S., BANAKAR, A., & NAMDAR GHANBARI, R.. (2012). SPECTRAL ANALYSIS OF PERIODIC BEHAVIOR OF LAKE URMIA WATER LEVEL TIME SERIES. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), 19(4), 25-46. SID. https://sid.ir/paper/156324/en

Vancouver: Copy

JALILI SH., MORID S., BANAKAR A., NAMDAR GHANBARI R.. SPECTRAL ANALYSIS OF PERIODIC BEHAVIOR OF LAKE URMIA WATER LEVEL TIME SERIES. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES)[Internet]. 2012;19(4):25-46. Available from: https://sid.ir/paper/156324/en

IEEE: Copy

SH. JALILI, S. MORID, A. BANAKAR, and R. NAMDAR GHANBARI, “SPECTRAL ANALYSIS OF PERIODIC BEHAVIOR OF LAKE URMIA WATER LEVEL TIME SERIES,” JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), vol. 19, no. 4, pp. 25–46, 2012, [Online]. Available: https://sid.ir/paper/156324/en

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