Question 958Navigation General70% to pass
What do the numbers on isobars indicate?
AI Explanation
The correct answer is B) barometric pressure.
Isobars are lines on a weather map that connect points of equal barometric pressure. The numbers on isobars indicate the specific barometric pressure value at that location, typically measured in millibars (mb) or hectopascals (hPa). This allows meteorologists and mariners to visualize the atmospheric pressure patterns and how they change over time, which is crucial for understanding and predicting weather conditions.
The other options are incorrect because isobars do not directly represent wind speed (A), temperature (C), or rainfall (D). Those weather variables are represented by different symbols and contours on a weather map.
Related Questions
#956 When using GPS without Selective Availability, you may expect your horizontal accuracy to be better than _______________.#957 When navigating using GPS, what is an indicator of the geometry of the satellites that your receiver is locked onto? #959 Atmospheric pressure may be measured with a(n) _______________.#960 Using the surface analysis in illustration D049NG below, which wind speeds are reported at position A? #961 Which feature, when set to zero, might allow a GPS unit to have an accuracy equivalent to Precise Positioning Service receiver capability?