Question

Q9. Define the isobar and show the isobaric shape of the following: A-Cyclone B- Trough C- Wedge ​

Answer 1

Answer:

lines of constant pressure

A line drawn on a weather map connecting points of equal pressure is called an isobar. The isobars are generated from mean sea level pressure reports and the pressure values are given in millibars.

The diagram below depicts a pair of isobars. At every point along the top isobar, the pressure is 996 mb and at every point along the bottom isobar the pressure is 1000 mb.

Any point in between these two isobars will have a pressure somewhere between 996 mb and 1000 mb. Point A, for example, has a pressure of 998 mb and is therefore located between the 996 mb isobar and the 1000 mb isobar.

Sea level pressure reports are available every hour, which means that maps of isobars are likewise available every hour. The solid blue contours are isobars and the numbers along particular contours indicate the pressure value of the isobar.

Answer 2

Answer:

Isobars are lines connecting locations with the same atmospheric pressure on a weather map. On the map, the isobar with the number 1004 denotes a region of high pressure, and the isobar with the number 976, a region of low pressure. On a weather map, isobars.

Explanation:

• When a storm is stationary or moving slowly, its isobar pattern frequently looks like a tidy, nearly circular arrangement of concentric rings. This is because the structure of mid-latitude depressions lacks any of the usual fronts.
• The flow of the air in the atmosphere produces a trough. Mass is lost if there is upward motion close to the surface and divergence at altitude. At this stage, the pressure begins to decrease.
• An anticyclone's wedge-shaped high pressure area that is narrower than a ridge. Mountaineering a wedge-shaped tool, historically made of wood but now typically hollow steel, for pounding into a fissure to give an anchor point.

Thus this is the answer.

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