North of this parallel, the prevailing winds are easterly, the isobarsextending in a general easterly and westerly direction.
Isobars in full black lines for each tenth of an inch, reduced pressure.
As has been already pointed out, there can be no doubt but that this is especially so in a storm of this kind, where the isobars are elongated in a north and south direction.
When the isobars are near together, these lines of pressure-decrease may be drawn heavier, to indicate a steeper gradient.
Divide the number of hundredths of an inch of pressure difference between the isobars (always .
When your tracing is finished you have a composite portrait of the isobars around several areas of low pressure.
Select the station (between two isobarson any weather map) at which you intend to make your observation.
Trace off the isobarswhich are nearest the center.
The isobars may be traced off as far away from the center as the 30.
Also gives isobars and isotherms and a forecast for the month succeeding the date of publication, and a review of the weather over the oceans for the preceding month.
The barometric gradient, it will be remembered, is the line along which there is the most rapid change of pressure, and lies at right angles to the isobars (Chapter VII).
When the isobars are near together, the lines of pressure decrease may be drawn heavier, to indicate a more rapid rate of decrease of pressure.
When, however, the pressure at the center is exceptionally high, it will not be necessary to trace off lower isobars than those for 30.
The Weather Bureau at Washington relies greatly on these isobars for statements concerning local and distant weather forecasts, any shift in isobaric lines showing change in atmospheric pressure.
Map] On the weather map solid lines represent isobars and dotted lines represent isotherms.
One of the maps shows the actual isobarsas they were recorded by the Weather Bureau.
The other moving map is the same isobars as predicted by you, Pheola.
A cyclone with crowded isobars always has strong winds; when the isobars are widely spaced the winds are gentle.
The lines of equal pressure or isobars generally curve and inclose what is known as a cyclonic centre, or depression or LOW.
The isobars reveal the presence of extensive areas over which the pressure is above the average and of others over which it is below the average.
The spacing of the isobarsis called the barometric gradient.
Lastly, if the map indicates the force of the winds at different places, it will be seen that winds are strongest where the isobars are close together and weakest where they are far apart.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "isobars" in a variety of sentences. We hope that you will now be able to make sentences using this word.
