Atmospheric circulation

Sample Solution

    The tropical dry forest and tropical savanna biomes typically experience highly seasonal rainfall due to the annual movement of the sun's orientation relative to Earth. During certain times of year, the sun is higher in the sky at different latitudes, resulting in changes in temperature and air pressure that affect atmospheric circulation patterns. These changing patterns lead to drastic changes in regional precipitation seasonally.

In both biomes, there are distinct wet and dry seasons with a short transition period between them. The wet season is typically brought on by the monsoon winds associated with an area when it experiences high pressure from increased sunlight during summer months such as June or July. This causes moisture laden air moving from oceanic areas towards land masses which leads to much higher levels of rainfall than during drier times of year; this additional humidity can create thunderstorms and other forms of precipitation. Conversely, during winter months such as December or January, lower levels of incoming UV radiation decrease air temperature causing a decrease in atmospheric pressure over land masses compared to oceans leading to dry weather conditions due to deficient moisture loading into air currents as they move across continents. In addition to differences in seasonal solar orientation throughout each hemisphere influencing these two biomes' climate cycles, some regions may experience further variation depending on their proximity to major water sources such as large bodies of water or mountain ranges blocking rain clouds from reaching certain areas for extended periods beyond what would be expected based on average yearly temperatures alone; this phenomenon is known as orographic lift and can increase rain amounts significantly near coastal regions while decreasing them further inland away from shorelines or mountainsides collecting excess moisture prior to it dissipating outwards throughout its journey downwards towards earth’s surface level where it can be utilized by ecosystems (Gill & Kovacs 2000). Through a combination of cyclical fluctuations caused by shifts in solar intensity between hemispheres plus localized microclimates created by geographical features impeding evaporation rates before liquid falls out onto nearby surfaces-tropical dry forests and savannas receive highly seasonal rainfall totals which follow regular trends requiring adaptations within local species populations so they might survive through years with more extreme climate events compared against those typically found across their habitats’ usual range (Kurz et al 2009). References: Gill A., & Kovacs P.,(2000), Atmospheric Science: An Introductory Survey . Academic Press Kurz D., et al., (2009). Climate change effects on tree growth trajectories over three centuries: retrospective analysis reveals complex responses amid persistent directional change . Global Change Biology 15(4):1043–1060