Arab weather - Jordanians are circulating news these days that we will witness cold weather in the coming days until the end of August due to the Earth's entry into the so-called "Avilion phenomenon", so that the Earth becomes very far from the sun.
The circulating news also included warnings that the weather would be colder than usual, which would lead to the spread of influenza, coughing and many respiratory diseases.
This is a clarification from experts in the Arab weather explaining the Avellion phenomenon and the validity of the news that was circulated. Is the summer of this year colder than usual?
The Aphelion phenomenon affects our weather, but not in the way mentioned in the news.
We will first begin by explaining that the Earth's orbit is not completely circular, but rather elliptical and the Sun does not fall in the center, so the distance between the Earth and the Sun varies throughout the year, so that the distance reaches a minimum and the Sun is closest to the Earth at the perihelion point. , in early January, and the Earth reaches its farthest point from the sun at the point of "aphelion" (aphelion), in early July.
It is reasonable to assume that the Earth would be hotter at perihelion and cooler at aphelion, but the difference in the amount of energy from the Sun we receive (called the solar constant) does not differ greatly between perihelion and aphelion, and the difference in distance between perihelion and aphelion is only about 5 million km ( 3 million miles), which is a small part of the average distance between the Sun and Earth of 150 million km (93 million miles).
In other words, the solar constant is about 1367 watts per square meter throughout the year, this value varies by only 3.5% due to the little difference in the Earth's distance from the sun, while if the Earth's orbit was more elliptical and more elongated, the temperature difference between The apogee and perigee are large.
The way an apogee affects our weather is the duration of the seasons; Earth is farther from the sun in summer, so its orbital speed is at its lowest and takes longer to get from the summer solstice to the autumnal equinox, than it does to move between the winter solstice and the vernal equinox (when at perigee), so the length of winter is about 89 days, while summer is about 92 days long.
Contrary to what is being circulated, the summer of 2022 will be hotter in some periods, as the seasonal bulletin issued by the Arab Weather Center indicates that the general situation during the summer of 2022 in Jordan will be, God willing, as follows:
More details via the seasonal bulletin from Arabia Weather
Arabia Weather App
Download the app to receive weather notifications and more..