What do isobars on a map represent?

Isobars on a map represent lines that connect points of equal atmospheric pressure. These lines are essential in meteorology as they provide critical information about weather systems. When isobars are closely spaced, it indicates a steep pressure gradient, leading to strong winds. Conversely, if isobars are spaced farther apart, the pressure gradient is gentle, resulting in calmer conditions. Understanding isobars helps in forecasting weather patterns, as they allow meteorologists to identify high and low-pressure areas, which are crucial for predicting wind direction and the movement of weather fronts.