Why are closely spaced isobars

Isotherms show temperature gradients and can indicate the location of a front. The speed and direction of the wind is governed by three forces; the pressure gradient force PGF , the Coriolis Force and friction. PGF is the force produced by differences in barometric pressure between two locations and is responsible for the flow of air from an area of high pressure to an area of low pressure. Air moves from higher to lower air pressure, and it is also deflected to the right of its path by the Coriolis force.

Wind direction results from the orientation of those air pressure differences, with air moving from higher to lower air pressure. Isobars can never touch each other. Isobars are used to represent the pressure at sea level so differences caused by altitude are ignored. When the isobars form a closed loop, a cell is produced. Skip to content Popular. Which term describes layered round formations of ice which form in cumulonimbus clouds.

Which type of rock is formed from the cementing of small pieces of older rocks shells soil or dead plants and animals. Which type of physical weathering occurs when water seeps into cracks of rocks and freezes. Q: What closely spaced isobars on a weather map indicate? Write your answer Related questions.

Explain what closely spaced isobars on a weather map indicate? What do widely spaced isobars indicate on a weather map? What do closely spaced isobars on a weather map indicate? Which would show stronger winds widely spaced isobars or closely spaced isobars?

What do close isobars on a weather map indicate? What do widely spaced isobars indicate? Explain what closely spaced isobar on a weather map indicate? Widely spaced isobars often indicate? What is the closely spaced contour lines indicate? How are isobars used? What do closely spaced contour lines indicate? Are contour lines closely spaced or far apart to indicate steep hills? What kind of slope do closely spaced contour lines indicate?

How do you determine wind speed from a weather map? What type of slope do widely spaced contour lines indicate? Warm Front. A blue line with triangles on one side is a cold front. When you see a cold front on a weather map, it means a colder air mass is trying to replace warmer air. The front marks the leading edge of the cold air. The blue triangles always point in the direction that the front and the cold air is going. The white horizontal lines on the windgram are constant pressure lines.

The red line is the altitude of that pressure. The lines start the day at the same level. If the red line is below the white line at the end of the day, it means that the pressure is expected fo fall during the day. An isobar is a line on a map that shows ameteorologist what the pressure is at the surface of the earth. They are lines that connect equal points of pressure.

Isobars can be used to map atmospheric or air pressure in away that makes it easier to understand. Pressure and temperatureare often tied together. Preciosa Bahtiaroff Teacher. How do you calculate wind speed and pressure? The unit for windpressure is pounds per square foot psf. For example, if the wind speed is 70 mph, the wind pressure is 0.

Alfie Fernandez De Troconiz Supporter. Which of the following devices is used to determine wind direction? A wind vane is used as part of theanemometer to determine the wind's direction. As the wind flows over the windmill, the speed and direction of the wind can be measured with thisinstrument.

Some scientific anemometers use the speed of sound to measure the wind speed more precisely inthree dimensions. Yixuan Niggel Beginner. What are isobars on a weather map? A line drawn on a weather map connecting pointsof equal pressure is called an isobar.

The isobars are generated from mean sea level pressure reports and the pressurevalues are given in millibars. Any point in between these two isobars will have a pressure somewhere between mb and mb. Ricardina Albillos Beginner. Which state has the highest average wind speed? By location, the place in the United States withthe highest average winds is Mt.

Washington in NewHampshire. The state with the highest number of windycities is Alaska. Alaska's windiest cities are subject tofrequent, harsh winter storms that cause higher annual windspeeds.