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philip porhammer
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does the Perigee and Apogee of the Earth's orbit relative to the seasons affect the temperature of our summers?
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What's your conclusion, given that the sun is approximately constant in its radiation output? Have you considered northern and southern hemispheres?philip porhammer said:does the Perigee and Apogee of the Earth's orbit relative to the seasons affect the temperature of our summers?
No, that is very incorrect and you only need to look at the data to see that.lomidrevo said:Perihelion occurs at beginning of January, and as Earth is slightly closer to Sun than a mean distance, the winters on northern hemisphere are bit warmer than winters on southern hemisphere (aphelion occurs in July).
OmCheeto said:"...summers are 2.3 °C (4 °F) warmer in the northern hemisphere than in the southern hemisphere under similar conditions."
Yes, I thought I made it clear in my post #5, that I admit I was wrong in my first post. Although the difference of solar irradiance between perihelion and aphelion is almost 7%, the Earth's climate system (including distribution of land and ocean) has a more significant influence on the surface temperatures.davenn said:No, that is very incorrect and you only need to look at the data to see that.
If you compare the mean temperatures at comparable (opposite) latitudes (e.g Sydney and Los Angeles), the difference is not very big. Daily mean in Sydney 13 °C (in July) vs. 14.4 °C in LA (January) could even suggest colder winter in Sydney. Of course, this is very simplified comparison, as we do not take into account any effects due to regional climate conditions (we could also try to compare Europe and Patagonia). I just want to point out that differences might not be so big as you suggest.davenn said:The southern hemispheres have VERY mild winters compared to the northern hemisphere.
We don't get the massive snowfalls, ice storms, rivers freezing over etc etc
Perigee and apogee refer to the closest and farthest points in Earth's orbit around the sun, respectively. Perigee occurs when Earth is closest to the sun, while apogee occurs when Earth is farthest from the sun.
When Earth is at perigee, it is closer to the sun and therefore receives more direct sunlight. This can lead to warmer summer temperatures. Conversely, when Earth is at apogee, it is farther from the sun and receives less direct sunlight, resulting in cooler summer temperatures.
Perigee and apogee occur approximately every 27.5 days, which is the time it takes for Earth to complete one orbit around the sun.
No, there are many other factors that can impact summer temperatures, such as the tilt of Earth's axis, atmospheric conditions, and ocean currents.
Scientists use a variety of methods to measure perigee and apogee, including satellite observations, radar measurements, and mathematical calculations based on the laws of gravity and motion.