Bight Anticyclone

Dzeii High
Area of occurrence	Northern Pythia
Season	Winter
Effect	Severe winter cold and attendant dry conditions and variable levels of snow and glaciers

The Dzeii High, also known as the Bight Anticyclone, is a massive collection of cold dry air that accumulates in the Wintry Bight from Audax to Florentina, usually centered in the bight during those months it expands southwards, reaching great size and strength when the temperature in the bight, the center of the high-pressure area, is often lower than -40°C. The atmospheric pressure is often over 1,040 milibars (31inHG). The Dzeii High is the strongest semi-permanent anticyclone in the northern hemisphere and is both responsible for the lowest temperature in the northern hemisphere, recorded at -72.3°C and the highest atmospheric pressure at 1083.8 mbar (108.38 kPa, 32.01inHG) ever recorded.

The Dzeii High is responsible for the severe winter cold across the wintry bight and specially in The Dze Confederation, with nations like Frijuhaim and Zÿlwahl being affected too. During the summer it is largely replaced by the Bight Low in most areas.

Overview

The Dzeii High affects the weather patterns of most of the northern hemisphere: at its peak it reaches as far as Ariseo in the west and Kyldigard in the east, aided by the strong water currents of the wintry bight and wind patterns, it is a critical component of the monsoons that occur in the north of Dacia. Occassionally a strong Dzeii High can reach as far south as Tepror, Japuile or Leihuo Guo, causing stronger winters than those usually present in the area and may even block low-pressure cells near the tropics.

The air of the High varies in temperature according to the region, but due to the glaciers it forms in the winds can be some of the coldest in Sparkalia, though outside the wintry bight it begins to grow milder at a fast rate.

Genesis and variability

In general, the Dzeii High-pressure system begins to build up around Lyncis, reaches its peak in the winter and remains strong until the end of Florentina. Its genesis at the end of the Arctic summer is caused by the convergence of summer air flows being cooled over the massive glaciers and the large watermass south of it as days shorten, whilst absorbing the cold air from local high-pressure cells inland as it expands. In the process of the Dzeii High's formation, the upper-level jet is transferred across northern Pythia by adiabatic cooling and descending advection, which in extreme cases creates "cold domes" that outbreak over warmer parts of North Pythia.

Despite how so few of the most prominent nations of this planet are affected by the phenomenon, it is one of the most studied due to the scientific expeditions to the Dze Confederation that have recorded all of this data throughout the last four years, nontheless it remains a fairly unknown and poorly understood system, with climatologists still learning about it's relation to both high and low pressure systems in Pythia as well as the past intensity of it, being theorized to currently be at its strongest due to the prevalent ice age that Sparkalia is going through.