Why isobars are more irregular in northern hemisphere than southern hemisphere?

Isobars are more irregular in the Northern Hemisphere due to the greater landmass distribution and varied topography, which create more complex weather patterns. The presence of large mountain ranges, valleys, and varying surface temperatures leads to localized pressure systems that can cause significant fluctuations in atmospheric pressure. In contrast, the Southern Hemisphere has more ocean area, which tends to produce more uniform pressure patterns, resulting in smoother isobar lines. Additionally, the Coriolis effect influences wind patterns differently in the two hemispheres, further contributing to the irregularity of isobars in the north.