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Spatial and temporal trends of dust storms across desert regions of Iran

Author

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  • Reza Modarres

    (Isfahan University of Technology)

  • Shiva Sadeghi

    (Isfahan University of Technology)

Abstract

Dust storms are among natural and anthropogenic hazards for socioeconomic resources, especially in desert regions. In recent years, dust storms have become a serious problem, especially in desert regions of Iran. This study investigates temporal and spatial variation of dust storm frequency in desert regions of Iran. The number of dusty days (NDD) are collected from 22 stations across the region. The statistical analysis of NDD time series is carried out to show both spatial and seasonal pattern of dust storm occurrence in the region. The regional map of statistical characteristics indicates a north to south increasing dust storm frequency. The spatial map also reveals higher year-to-year variation in south eastern Iran. The seasonality of NDD shows the highest frequency for summer followed by the spring and autumn seasons. The popular Mann–Kendall and the bootstrap MK test to consider serial correlation are then applied for Trend assessment. Results showed both negative (across the north and northwestern regions) and positive trend (across south and south eastern regions) in the annual and seasonal NDD time series. This north-to-south gradient in the spatial and temporal frequency NDD may arise from harsh dry and gusty winds as well as intense land use change in the south eastern territories of Iran. However, more careful and detailed studies are required to connect environmental conditions to change in NDD frequency.

Suggested Citation

  • Reza Modarres & Shiva Sadeghi, 2018. "Spatial and temporal trends of dust storms across desert regions of Iran," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 90(1), pages 101-114, January.
    • Handle: RePEc:spr:nathaz:v:90:y:2018:i:1:d:10.1007_s11069-017-3035-8
    DOI: 10.1007/s11069-017-3035-8
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    References listed on IDEAS

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    1. Azizi Ghasem & AliAkbar Shamsipour & Morteza Miri & Taher Safarrad, 2012. "Synoptic and remote sensing analysis of dust events in southwestern Iran," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 64(2), pages 1625-1638, November.
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    Cited by:

    1. Leila Mahmoudi & Naoki Ikegaya, 2023. "Identifying the Distribution and Frequency of Dust Storms in Iran Based on Long-Term Observations from over 400 Weather Stations," Sustainability, MDPI, vol. 15(16), pages 1-16, August.
    2. E. Tuncay Özdemir & Fatih M. Korkmaz & Veli Yavuz, 2018. "Synoptic analysis of dust storm over Arabian Peninsula: a case study on February 28, 2009," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 92(2), pages 805-827, June.

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