Nodules on CT scan (3 replies): I had a CT scan ran twice on my lungs. It shows multipl... [more]. Ground glass opacities. Hi, Just got the CT scan result back. A 7mmx4mm gro... [more]. Continue discussion. This discussion is closed.
Isobars are lines of constant or equal pressure on a weather map. They can be used to find areas of low or high pressure over a broad area (like the U.S.), and they can tell us how intense the system may be.
Tips. 1  Some other lines that may be present in a weather map are: 2  Isotherms-all points through which the isotherm passes have the same temperature. 3  Isotachs-all points where the isotach passes have the same wind speed. 4  Numbers on the isobars, such as 1008, is the pressure (in millibars) along that line.