Daily weather map showing isobars is an example of

A daily weather map that shows isobars (lines of equal atmospheric pressure) is a classic example of an isopleth (isolines/isarithmic) map. Meteorological forecast charts routinely display surface pressure patterns using isobars to depict continuous pressure fields, highs and lows, and fronts. Isopleth or isarithmic maps represent smoothly varying phenomena (e.g., temperature, precipitation, pressure) by connecting points of equal value with contour lines, which is precisely what isobars do for pressure. This contrasts with choropleth maps that shade discrete administrative areas by aggregated values; isobars do not follow political boundaries but continuous gradients, confirming the map type as isopleth.