As you travel from 15°S latitude to 15°N latitude, one change you would likely observe is the direction of air currents. At 15°S latitude, the air currents would generally be moving towards the south, whereas at 15°N latitude, the air currents would generally be moving towards the north. This is due to the Coriolis effect, which causes air movements to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere, leading to the creation of dominant wind patterns in each hemisphere.