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Antarephia Climate over 4 years ago

@isleño, thanks for the feedback.

  • Antarctic Circumpolar Current topic

Between 30° and 60° south (the lowest black line I drew), winds and ocean currents tend to move eastward and southward. On Earth, 50/60° south is the location of Drake Passage. That's why the current is so powerful, because no landmass stops it. Below 60° Easterlies blow westward. That is why I drew arrows in the opposite directions on the map.

  • Hesperic Ocean topic

I made an error in my comment but the map is "right". Water and air move eastward and southward. What I meant by behaving like Northern Atlantic Ocean and not like Pacific Ocean is that Hesperic Ocean, like the Atlantic Ocean is "closed" in the west on its outer end (high latitude). Water, south of 30°, would drift south and east after having followed Kartumia coast. In the Atlantic Ocean, water does the same, following US coast then going East and North before one of its branches slowly bends West on reaching 60°. Water is then pushed westward under the Ice Shelf and come back cold via Labrador and Bering straits. In the Pacific, Equatorial current pushes water west until it reaches Papua , then turns south toward Australia. When its comes back to America, water has travelled a long distance and has got time to cool off.

  • Chile/Western Europe topic

What I meant by comparing both locations is the influence water temperature has on climate. In both locations, winds blow, more or less in the same direction (poleward and eastward), but in Chile, water comes from the South/South West which colder, and in Europe, from the South/South West which is warmer. Thus, Puerto Montt region is way wetter (well, the Andes are pretty close as well) than let's say Western France which is even at higher latitude. I think Western Antarephia would be milder than Chile is.

I don't know if my explanation makes more sense but I'm may wrong anyway ;-)

Antarephia Climate over 4 years ago


The sketch would make only sense on the coasts. As Black baron said, we know too little about mountain ranges but we do know that the planet rotates in the same direction as the Earth (see time zones article). On the sketch, I choose to display Southern Hemisphere's winter. In the summer, high depressions would move southward.

For Western Antarephia; Guai, Paxtar, Montran, Waldon and Ulanne display mountains inland. So at least west to these, it is likely that the climate spans from BSh, to CSb/Csa (depending on the orientation) to CFb. Of course, there would be variations depending on the topography and latitude (oceanic climate in Galicia, Spain is not the same as the one in Bergen, Norway). Due to rainshadow effet, the climate would be dryer east of the mountain range and possibly colder in the winter and warmer in the summer (variations of continental climate). Of course, the climate would turn wetter getting closer to the Central Ocean.

@zhenkang: I don't think a hurricane would cross Commonia. From what I remember, it needs warm water (is it 25° at least ?) to start rotating, that's why they rarely go further inland after they've made landfall.

@ruadh: I may submit the sketch to the wiki but I wanted to have some feedback on the verisimilitude of the model.

Mahhal: is the latitude problem a "dealbreaker"? over 4 years ago

You're very welcome :-)


Hello Luciano,

I come a bit late on this talk but I've just had a quick look at climate models (ocean currents, prevailing winds...). I made a draft for Mahhal with these models and the information you provided on the country (e.g. Harda current).

  • Prevailing winds

    • Up to -60° - more or less - prevailing winds are blowing NW=>SE
    • Over -60° prevailing winds (polar easterlies) are blowing SE=>NW
  • Ocean currents

    • Harda current warms waters on Mahhal eastern coast until it meets "Antarctic" circumpolar current, turns east and colder. We could say that a branch of Harda current flows west of Mahhal for some distance before it stops.
    • Part of "Antarctic" circumpolar current turns north, approaching Mahhal western coast and warms itself a bit before turning westward when it reaches Antarephian south coast.
  • Geography

    • Tell me if I'm wrong but it seems that there is 2 main parallel mountain ranges in Mahhal (drawn in brown on the model). Due to prevailing winds and rainshadow effect, the climate is dryer east of these ranges.
  • Effects on Climate

    • Northwest Mahhal: westerlies blow over warm Harda current waters. We may say that this region has a Cfb oceanic climate, maybe a colder version as in Norway and not as in France.
    • Central West Coast: westerlies tend to strive with polar easterlies. The region could have a cfc Subpolar variety of oceanic climate, like southern Chile or Alaska panhandle.
    • Southern West Coast: the ocean is truly cold and may freeze near the coast. The region could have an ET tundra climate.
    • Northeast Mahhal: westerlies have turned colder over the land. The region could have a Dfb Humid continental climate. Think of Hokkaido or New England. The water does not freeze but most of its warming effect is blown eastward, especially in the winter.
    • East Coast: going south from -60°, the weather turns colder but the water doesn't freeze in the winter. The region could have Dfc subarctic climate as Murmansk or Arkhangelsk: water is still "warm" but the winds blow over cold land.
    • Central Mahhal: Dfc Humid Continental Climate but colder than on the eastern coast. The enclosed sea freezes in the winter.
    • Highlands and Hinterland: ET tundra climate when low and EF ice cap climate elsewhere (e.g glaciers).
  • Conclusion

    • Mahhal makes sense with the overview you made of the country but most of population would live Cfb and Dfb regions and preferably along the coast and lowlands. I wouldn't consider any major cities inland.
    • Due to Mahhal latitude, I would "reduce" the population. I would say: maximum 5 millions.