Seasonally dependent precipitation changes and their driving mechanisms in Southwest Asia

Alizadeh, Omid; Babaei, Morteza

doi:10.1007/s10584-022-03316-z

Cited by 13 publications

(8 citation statements)

References 43 publications

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“…The subtropical jet stream is driven by the poleward transport of angular momentum within the Hadley cell (Held and Hou, 1980), which is different in this regard from the eddy‐driven polar jet stream (Williams, 1979). As the poleward transport of the angular momentum changes with seasons, a significant seasonal variation in the strength and meridional position of the subtropical jet stream is expected (Alizadeh and Babaei, 2022).…”

Section: Resultsmentioning

confidence: 99%

Large‐scale driving mechanisms of the lowest and highest annual temperatures in northwestern Iran

Alizadeh

Ghafarian

2023

Weather

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Section: Resultsmentioning

confidence: 99%

Large‐scale driving mechanisms of the lowest and highest annual temperatures in northwestern Iran

Alizadeh

Ghafarian

2023

Weather

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“…Iran has a diverse climate due to its broad latitudinal extent and the influence of long coastlines and high mountain ranges (Alizadeh & Babaei, 2022). Indeed, the climate of Iran ranges from extremely wet in the southern coasts of the Caspian Sea in northern Iran to a hyperarid climate in desert lands in central to southeastern Iran (Alizadeh‐Choobari & Najafi, 2018).…”

Section: Case Studies and Methodologymentioning

confidence: 99%

Performance of Lightning Potential Index, Lightning Threat Index, and the Product of CAPE and Precipitation in the WRF Model

Saleh,

Gharaylou,

Farahani

et al. 2023

Earth and Space Science

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Lightning is a naturally occurring phenomenon with significant socioeconomic and environmental impacts, underlining the need for the application of advanced methods to predict it. This study aims to evaluate the performance of the Weather Research and Forecasting (WRF) model in the prediction of the lightning potential index (LPI), the lightning threat index (LTI), and the product of convective available potential energy (CAPE) and precipitation (CAPE × P). Based on the intensity of convection and the number of lightning flashes, we simulated seven thundercloud events that occurred in Tehran between 2008 and 2013. The simulated LPI, LTI, and CAPE × P values are compared both qualitatively and quantitatively against ground‐based lighting data obtained from the world wide lightning location network (WWLLN). LPI, LTI, and CAPE × P predict the location of lightning with relatively good accuracy, although LPI outperforms LTI and CAPE × P. We also compared the simulated area‐averaged LPI, LTI, and CAPE × P against the number of lightning flashes from the WWLLN data, based on which LPI shows a better performance. Overall, LPI can be used as an effective index for the prediction of lightning. As LPI is based on cloud microphysics and LTI and CAPE × P are thermodynamic‐based methods, a better performance of LPI implies that a method based on the microphysical approach can better predict lightning. The performance of LPI, LTI, and CAPE × P is also sensitive to the horizontal resolution of model simulations, with a considerable improvement in simulations with higher horizontal resolutions.

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“…The subtropical jet stream is driven by the poleward transport of angular momentum within the Hadley cell (Held and Hou, 1980), which is different in this regard from the eddy-driven polar jet stream (Williams, 1979). As the poleward transport of the angular momentum changes with seasons, a significant seasonal variation in the strength and meridional position of the subtropical jet stream is expected (Alizadeh and Babaei, 2022).…”

Section: Winter Versus Summer Climatology In Northwestern Iranmentioning

confidence: 99%

Weather, Vol. 78, no. 9, September 2023, pp. 238‐268

2023

Weather

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Seasonally dependent precipitation changes and their driving mechanisms in Southwest Asia

Cited by 13 publications

References 43 publications

Large‐scale driving mechanisms of the lowest and highest annual temperatures in northwestern Iran

Large‐scale driving mechanisms of the lowest and highest annual temperatures in northwestern Iran

Performance of Lightning Potential Index, Lightning Threat Index, and the Product of CAPE and Precipitation in the WRF Model

Weather, Vol. 78, no. 9, September 2023, pp. 238‐268

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