Showing posts with label Climate. Show all posts
Showing posts with label Climate. Show all posts

06 June 2017

Atmospheric circulation map

I've been working on a worldbuilding article that requires quite a few graphics of the process and I've just started working on these now. This is the first of hopefully many such graphics: the Atmospheric Circulation map.

                             Atmospheric Circulation Map


Atmospheric Circulation
You can divide both northern and southern hemisphere into three distinct bands between the equator (0O) and 30O, 30O and 60O, and 60O and 90O. These can be called tropical, temperate, and arctic bands. These bands are also used to calculate atmospheric circulation, as seen below. Flora and fauna from one band will struggle to survive in another and biomes are typically unique to each band.

Hadley Cell: warm air rises at the equator and cools as it moves towards to poles, falling at 30O latitude, moving back towards the equator along the earth's surface, where it becomes warm again. Air moving towards the equator collects moisture, giving rainforests the climate they need to thrive. Air moving towards the 30O latitude has lost its moisture and is dry, explaining the many deserts found at such latitudes. Prevailing winds in the Hadley cells blow towards the west and the equator - rain shadows will form on the west sides of continents if the winds are blocked by mountains.

Ferrel Cell: warm air rises from the surface at the 60O latitude, moving either towards the pole or equator (where it becomes part of the Polar Cell or Ferrel Cell, respectively). In the Ferrel Cell cool dry air drops at the 30O latitude. Prevailing winds in the Ferrel cells blow towards the east - rain shadows may form on the east sides of continents if the winds are blocked by mountains.

Polar cell: warm air rises at 60O latitude, moving towards the poles, cooling as it moves eastward, sinking at the pole. This air is dry, which means there is little rainfall.




#HadleyCell, #FerrelCell, #AtmosphericCirculation, #Climate, #Worldbuilding, #Elyden, #Vorropohaiah



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31 August 2016

Elyden climate map

I just finished this. It didn't take too long to make (as usual with maps with text, the text took quite a while to get done, though this time I was able to pinch some words from my notes), but I needed something like this to help me with the regional atlas maps. I expect I'll be updating this and tweaking it as I work on other regions, so nothing is set in stone quite yet.

Elyden Global climate map
The text from the image is copied below:

Put simply, climate is a stable weather condition averaged out over a long period of time (often 25-years), categorized by specific combinations of humidity and temperature; whereas weather is a short-term phenomenon, based on changes in in wind, humidity and temperature.
   Elyden is currently undergoing a change in climate, and is emerging from a warm period, moving into an ice-age. These cooler temperatures result in lower sea-levels as more sea-water is trapped in polar ice. Despite these changes, each of Elyden’s continents is characterized by particular climates and patterns in temperature and precipitation, amongst others.
   Of note are the Atramenta and the Firmament, which affect both climate and weather as well as other conditions in their vicinity, with their effects more pronounced the farther from the nullambit one moves.
   The study of climatology was introduced in 3982 RM by the scholar Phirun Kamerathis, who divides the northern and southern hemispheres of Elyden into five broad bands, or climate zones, each: Tropical, Dry, Temperate, Continental and Polar in the northern hemisphere and the reverse in the southern. Each of these bands is further divided into more detailed bands which were introduced through later adjustments.
   Each band has distinct traits and qualities that are shared to different degrees across all lands and territories that fall under that band. The bands are not regular and may cover different latitudes, depending on the presence of oceanic currents, mountains, deserts and other factors.


Bror
Despite its distinction of being the smallest and most isolated of continents, Bror is an example of the climatological diversity that’s possible in relatively small areas.
  The Lahaed mountain, running down the entirety of the continent like a hard spine, it the major arbiter of Bror’s climate. Rain shadows to the north and south of the mountain have created sizeable rain shadows, beyond which are tropical regions to the north-east, and temperate to the south-west.    

Llachatul
As the northernmost continent, it comes as no surprise that Llachatul is the coldest. It is the only continent with a land polar icecap and has the longest stretch of west-east land above the north polar circle amongst all continents (7,300-miles).
  Llachatul is generally divided in two: Gnotha to the west and Malani Llachatul to the east, divided by a line drawn from the sea of Propontis to Bielost. Gnotha is characterized by a continental climate, with its western coast heavily influenced by the Erthydaen Flow, which brings warm waters and currents north from the Sea of Lynnae. Farther south, and closer to Sammaea, it ranges from temperate to the arid-temperate climate that characterises the northern coastline of the Inner Sea. Malani Llachatul has a more temperate climate, though lands east of the Argent mountains are arid to semi-arid, with its south-eastern coast ranging from equatorial to hot humid.
  Southern and south-eastern Llachatul experiences a wet season and a dry season, though northern and western Llachatul experience four seasons.

Meniscea
Dominating the north of the far hemisphere, Meniscea is home to the True Meniscus. It lies between 80O north and 10O south, though is concentrated around 70O and 40O, with a continental climate predominating, with tundra to the north and a more temperate climate to the south.
   The southernmost reaches of the Meniscean peninsula reaches to beyond the equator and displays a hot-humid through to tropical to equatorial.

Sammaea
Sammaea is the largest continent, stretching from 50O north to 84O south and encompasses all climates imaginable, save for polar icecaps. The continent is divided into four – Western Sammaea, comprising all lands west of the Karkarmis mountains; Southern Sammaea, comprising all lands south of the Acharkharan mountains; Eastern Sammaea, or Imperial Sammaea, comprising the lands north-east of the Mulciber mountains; and Northern Sammaea, or Kharkharadontid Sammaea, which dominates the lands between – each of which has distinct features.
   The continent is characterized by vast deserts along regions of rain shadows, both tropics, and the innermost regions of the continent, with the largest – the Kharkharadontid desert – being home to the Black Fountain and the most extreme Atramental terrain. It also has the two largest rain forests in Elyden – the Wold in the west and the Waelmigh in the east.
   Away from these areas of extremes, the climate is semi-arid to temperate-arid, though the south is more temperate, with continental and tundra in the extreme south.



#Climate, #Elyden, #Atlaselyden, #Fantasyatlas, #Fantasycartography,