Analysis of the convective available potential energy by precipitation over Iraq using ECMWF data for the period of 1989–2018

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Published:
Mar 30, 2020
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Vol. 29 No. 2 (2020)
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Original papers
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Osama T. Al-Taai
Mustansiriyah University, College of Science, Atmospheric Science Department, Baghdad, Iraq
Zainab M. Abbood
Mustansiriyah University, College of Science, Atmospheric Science Department, Baghdad, Iraq

DOI: https://doi.org/10.22630/PNIKS.2020.29.2.17
Keywords : convective precipitation, total precipitation, Spearman rho test, CAPE, ECMWF, Iraq
Abstract
The Convective Available Potential Energy (CAPE) represents the amount of energy for a sample of air. The sample departs vertically within the atmosphere and through these values the potential energy to predict the extreme weather conditions such as storms, hurricanes, lightning and thunder. Data are taken by CAPE, convective precipitation (Cp) and total precipitation (Tp) from satellites recorded by the European Centre for Medium-Range Weather Forecasts (ECMWF). The choice of 30 years (1989–2018) over Iraq station between two latitudes (29.5°–37.22° N) and two longitudes (48.45°–38.45° E). Otherwise, we have studied total yearly mean of CAPE, Cp and Tp over Iraq, the total monthly mean of CAPE, Cp and Tp for the selected station, as well as the relationship between of CAPE, Cp and Tp for the selected station. The results showed that the highest total yearly mean of CAPE, Cp and Tp over Iraq was included northern stations and lowest was included central and southern stations. The highest total monthly mean of CAPE, Cp and Tp for Zakho station. The relationship between the CAPE and Cp is positive and the relationship between CAPE and Tp is positive too at five stations but Mosul station represents very high correlation while Zakho station represents the low correlation.

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How to Cite
Al-Taai, O. T., & Abbood, Z. M. (2020). Analysis of the convective available potential energy by precipitation over Iraq using ECMWF data for the period of 1989–2018. Scientific Review Engineering and Environmental Sciences (SREES), 29(2), 196–211. https://doi.org/10.22630/PNIKS.2020.29.2.17
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