The Relationship of CLWC and Rainfall to the Synoptic Cases of Two Case Studies Over Iraq

Abstract

Climate change and the improvement of the environment is one of the most important topics that preoccupied the world, and the main factor for it is precipitation. To understand how to improve the environment, precipitation must be increased by understanding the mechanisms of cloud formation and benefiting from the water content of the liquid cloud, which is the basic building block of precipitation. There is no precipitation without liquid water content. This study examined the effect of depressions on rain and liquid cloud water content, in addition to studying the relationship of liquid water content and precipitation, and classifying clouds according to liquid water content over Iraq. We found that the liquid water content and the amount of precipitation are affected by depressions. Hourly data has been taken cloud liquid water content were used for four primary times, (00, 06, 12, and 18 UTC), at all pressure levels from (1000 to 175 hpa) for the study Selected days in Winter 2019 Taken from the generation of European Center for Medium-Range Weather Forecasting (ECMWF) from ERA5 it is the fifth generation ECMWF atmospheric reanalysis of the global climate covering the period from January 1950 to present. ERA5 is produced by the Copernicus Climate Change Service at ECMWF, sea level pressure maps and geopotential height maps were taken from ECMWF ERA5 Reanalysis. And low, medium, and high clouds and the amount of precipitation were taken from the (Iraqi Meteorological Organization and Seismic Monitoring). Two programs (Matlab) and (Origin) were used to analyze and plot the data.