Creating a Global Climate Calendar

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Discussion Overview

The discussion revolves around the feasibility of creating a two-seasonal global climate calendar as a statistical model of Earth's upper air, focusing on the equalization of climatic conditions between the southern and northern hemispheres. The conversation explores the complexities of climate variability and the influence of various factors such as topography, latitude, and seasonal changes.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • One participant questions the possibility of a two-seasonal calendar, arguing that climatic conditions in the hemispheres never truly equalize due to constant changes as the Earth orbits the sun.
  • Another participant emphasizes that the concept of two or four seasons is arbitrary, noting that temperature extremes vary significantly across different locations and times.
  • Examples from six locations in the US are mentioned to illustrate the differences in temperature trends between the northern and southern hemispheres.
  • A participant seeks clarification on an article regarding a 10 hPa Global Stratospheric Calendar, asking for an abstract, conclusions, and methodology details.
  • Questions are raised about the applicability of the model to different atmospheric regions, including the stratosphere, mesosphere, thermosphere, and exosphere, as well as considerations for the troposphere.

Areas of Agreement / Disagreement

Participants express differing views on the feasibility of a two-seasonal climate calendar, with some arguing against the possibility of equal climatic conditions and others exploring the implications of the proposed model. The discussion remains unresolved with multiple competing perspectives.

Contextual Notes

Participants highlight the dependence of climate models on various interacting factors, and the discussion reflects uncertainty regarding the definitions and assumptions surrounding the proposed calendar.

hrvojezujic
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Is it possible to create a two-seasonal global climate calendar as a statistical model of some physical property of Earth's upper air, independent from interacting factors such as topography, elevation, latitude, nearby water, ocean currents, vegetation and prevailing winds? The beginning of the season should be the moment when the climatic conditions in the southern and northern hemispheres of the Planet Earth equalize.
 
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hrvojezujic said:
The beginning of the season should be the moment when the climatic conditions in the southern and northern hemispheres of the Planet Earth equalize.
The climatic conditions in the southern and northern hemispheres of the Planet Earth never equalize. They are always changing as the Earth revolves around the sun. Two or four seasons is rather arbitrary, when climate and weather are continually changing. The closest one might come to equilibrium is near the equator +/- 15° latitude or around the equinox, but that is a regional/altitude/local effect.

If takes a look at different locations within the US over 1 year, one sees that temperature extremes and trends are vastly different. In the case of S. Hemisphere, the temperatures are 180° out of phase, but the extremes can be greater, since the Earth is further from the sun during SH winter, and closer to the sun during SH summer.

Examples from 6 US locations, 3 in southern US and 3 in northern US, east to west.
 

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Astronuc said:
The climatic conditions in the southern and northern hemispheres of the Planet Earth never equalize. They are always changing as the Earth revolves around the sun. Two or four seasons is rather arbitrary, when climate and weather are continually changing. The closest one might come to equilibrium is near the equator +/- 15° latitude or around the equinox, but that is a regional/altitude/local effect.

If takes a look at different locations within the US over 1 year, one sees that temperature extremes and trends are vastly different. In the case of S. Hemisphere, the temperatures are 180° out of phase, but the extremes can be greater, since the Earth is further from the sun during SH winter, and closer to the sun during SH summer.

Examples from 6 US locations, 3 in southern US and 3 in northern US, east to west.
Dear Astronuc,
All what you wrote is true.
That is why I wrote "calendar as a statistical model of some physical property of Earth's upper air, independent from interacting factors such as topography, elevation, latitude, nearby water, ocean currents, vegetation and prevailing winds".
What do you think of this Article?
10 hPa Global Stratospheric Calendar at Stonehenge and Giza
 
hrvojezujic said:
Please provide/post an abstract and conclusions in this thread, and preferably, a brief description of the process/methodology. I don't generally use links to websites with which I am not familiar. To what journal(s) has the pre-print been submitted?

Off hand, I'm not sure what one can prove from two points both in the N. Hemisphere with considerably different environments.
Giza (near Cairo), 29.9870°N 31.2118°E
Stonehenge, Wiltshire, England, 51°10′44″N 1°49′34″W

Is one applying the model/methodology strictly to the stratosphere, or is one also considering the other regions: Mesosphere, Thermosphere and Exosphere?

How does one consider the troposphere, the lowest region of the atmosphere, extending from the Earth's surface to a height of about 3.7–6.2 miles (6–10 km), which is the lower boundary of the stratosphere?
 
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