Sunday .. the date of the winter solstice and the beginning of the period Al-Quadraniye

Weather of Arabia - On Sunday, December 22, 2019, the date of the winter solstice will occur in the northern hemisphere, including the Arab world, based on astronomical calculations.

The sun is on 12-12-2019 completely vertical over the course of Capricorn south of the equator and this is considered the farthest outpost of the sun in the sky of the earth to the south, where that day is the first day of the winter astronomically, and the shortest day and the longest night in the northern half of The globe for the whole year.

Since ancient times, humans have been able to distinguish this day before the existence of modern technology and even before arranging days and months as it is happening in our time. Humans have observed from a long time ago that the sun begins after this day to rise to the north in its apparent movement, where the length of night decreases and the length of the day gradually increases Until the night equals the day on March 20, the date for the vernal equinox.

The shortest day of the year ... when is it and what is its relationship to the winter solstice?

This day is considered the beginning of the so-called "squaring winter" in the Levant and many Arab countries, as this date was related to the memories and experiences of the ancestors and their minds with the coming of the cold and the most severe rains throughout the year and over forty days, which is consistent with modern science where the corner that revolves The land has after this date an increase in the number and activity of air depressions that affect the Levant region and the Arabian Peninsula during this period.

The course of the depressions becomes more suitable for the region to be affected more by this and these words are proven by climatic records as the quadratic period witnesses the lowest temperature recorded throughout the year in the region, as this period usually witnesses the highest rainfall rates.

The reason for naming the quadrilateral with this name

The name Square Winter came by this name, as a result of the number of days of this period astronomically (approximately 40 days) starting from the date of the winter solstice, until the end of January, but on the ground, this period may be less or more than that according to the regulations The prevailing atmosphere.

Entering the square is not always the mean of rain and hail

The site notes that entering the region astronomically within the so-called quadruple, does not necessarily mean the coming of storms and rains directly or the intensification of rain and hail as soon as this period begins, where previously came years when the quadrangle was dry and with low rates of rain, as years came that the quadrangle began with an atmosphere Stable and later changed into a cold winter during the 40-day period.