The earth's tilt has a much greater seasonal effect on insolation than the Earth-Sun distance, and cause the seasons. And, one might conjecture that seasonal variations in the Northern hemisphere might be somewhat ameliorated compared to the variations in the Southern hemisphere due to the effect you mentions. Perhaps one might even further conjecture that this might be the reason that continental sheets of glaciers during the Ice Ages are more of a Northern Hemisphere phenomenon.
I asked ChatGPT a few questions about sun-earth distance. Here is what came out. About 3 million mile difference The farthest distance between the Earth and the Sun occurs at a point in Earth's orbit known as aphelion. During aphelion, Earth is at its farthest point from the Sun. The distance at aphelion is approximately 94.5 million miles (about 152 million kilometers). This event typically takes place around early July of each year.
It's interesting to note that while there is a difference in distance between perihelion and aphelion, these variations have a relatively minor impact on Earth's climate and seasons. The primary driver of seasonal changes is the axial tilt of the Earth, which causes different parts of the planet to receive varying amounts of sunlight throughout the year.
ChatGPT makes an assumption about the effects of perihelion and aphelion. But simple physics and diminution of energy of 3million miles is significant.
The inverse square law states that the intensity of radiation is inversely proportional to the square of the distance from the source of radiation. In the case of sunlight reaching the Earth, this means that if the Earth is twice as far from the Sun (as it is at aphelion compared to perihelion), it receives only about one-fourth (1/2^2) of the solar radiation.
The actual difference in solar radiation between perihelion and aphelion is approximately 7%, with Earth receiving about 7% more solar energy at perihelion than at aphelion. The average temperature difference between an ice age and a warm period can vary, but it's generally estimated to be around 5 to 10 degrees Celsius (9 to 18 degrees Fahrenheit).
Yes --
The earth's tilt has a much greater seasonal effect on insolation than the Earth-Sun distance, and cause the seasons. And, one might conjecture that seasonal variations in the Northern hemisphere might be somewhat ameliorated compared to the variations in the Southern hemisphere due to the effect you mentions. Perhaps one might even further conjecture that this might be the reason that continental sheets of glaciers during the Ice Ages are more of a Northern Hemisphere phenomenon.
I asked ChatGPT a few questions about sun-earth distance. Here is what came out. About 3 million mile difference The farthest distance between the Earth and the Sun occurs at a point in Earth's orbit known as aphelion. During aphelion, Earth is at its farthest point from the Sun. The distance at aphelion is approximately 94.5 million miles (about 152 million kilometers). This event typically takes place around early July of each year.
It's interesting to note that while there is a difference in distance between perihelion and aphelion, these variations have a relatively minor impact on Earth's climate and seasons. The primary driver of seasonal changes is the axial tilt of the Earth, which causes different parts of the planet to receive varying amounts of sunlight throughout the year.
ChatGPT makes an assumption about the effects of perihelion and aphelion. But simple physics and diminution of energy of 3million miles is significant.
The inverse square law states that the intensity of radiation is inversely proportional to the square of the distance from the source of radiation. In the case of sunlight reaching the Earth, this means that if the Earth is twice as far from the Sun (as it is at aphelion compared to perihelion), it receives only about one-fourth (1/2^2) of the solar radiation.
The actual difference in solar radiation between perihelion and aphelion is approximately 7%, with Earth receiving about 7% more solar energy at perihelion than at aphelion. The average temperature difference between an ice age and a warm period can vary, but it's generally estimated to be around 5 to 10 degrees Celsius (9 to 18 degrees Fahrenheit).