Ten ensembles with hourly high spatial resolution datasets for severe precipitation events in Egypt.

Muhammed Eltahan,Sabah Alahmadi,Karim Moharm,Mohammed Magooda

doi:10.1016/j.dib.2020.105987

Abstract

In this article, we created a new dataset comprising 10 ensembles for severe rainfall simulations at a high spatial resolution (10 km grid spacing, 120 × 120 grid points) in Egypt using the Weather Research and Forecast model Version 3.8 (WRF 3.8). The vertical grid had over 41 levels, extending from the surface to 10 hPa. The defined domain, a Lambert conformal conic projection, started from 24°E to 36°E. The ensembles were generated using 10 different microphysics schemes within the WRF 3.8. The severe rainfall event occurred between October 26 and 29, 2016. Final analysis data from National Center for Environmental Predictions were used for the initial and boundary conditions every 6 h at a spatial resolution of 1° × 1°. The geographical static input data, such as land use, albedo, and terrain height, were interpolated and prepared using a geogrid program in the WRF preprocessing system. This dataset is the first of its kind. It is addressing a need for this type of high resolution data over Egypt using physically- based numerical weather prediction models.

Highlights

In this article, we created a new dataset comprising 10 ensembles for severe rainfall simulations at a high spatial resolution (10 km grid spacing, 120 × 120 grid points) in Egypt using the Weather Research and Forecast model Version 3.8 (WRF 3.8)
The severe rainfall event occurred between October 26 and 29, 2016
The geographical static input data, such as land use, albedo, and terrain height, were interpolated and prepared using a geogrid program in the WRF preprocessing system. This dataset is the first of its kind. It is addressing a need for this type of high resolution data over Egypt using physically- based numerical weather prediction models

Summary

Data description

The dataset was divided into 10 directories, each representing an ensemble generated using a different microphysics scheme. The directory naming convention is WRF_microphysics_scheme_xyz, where “xyz” represents the used scheme. WRF_microphysics scheme_ Kessler represents an ensemble whose WRF simulation utilized the Kessler microphysics scheme. Each file contains data for a single day (24 h), consisting of 14 variables (see Specification Table) measured in three dimensions on an hourly basis. The file naming convention is EGYPT_WRF_3_8_xyz_dd_mm_yyyy.nc, where “xyz” represents the scheme used, “dd” is the date, “mm” is the month, and “yyyy” is the year. EGYPT_WRF_3_8_ Kessler_25_10_2016.nc would refer an ensemble that utilized the Kessler microphysics scheme on October 25, 2016

Model setup

Physical parameterizations