Dictionary:
i·so·bar (ī'sə-bär')  |
[ISO- + Greek baros, weight.]
isobaric i'so·bar'ic (-bär'ĭk, -băr'-) adj.| 5min Related Video: isobar |
| Sci-Tech Encyclopedia: Isobar |
(meteorology and climatology)
A curve along which pressure is constant. Leading examples of its uses are in weather forecasting and meteorology. The most common weather maps are charts of weather conditions at the Earth's surface and mean sea level, and they contain isobars as principal information. Areas of bad or unsettled weather are readily defined by roughly circular isobars around low-pressure centers at mean sea level. Likewise, closed isobars around high-pressure centers define areas of generally fair weather. See also
A principal use of isobars stems from the so-called geostrophic wind, which approximates the actual wind on a large scale. The direction of the geostrophic wind is parallel to the isobars, in the sense that if an observer stands facing away from the wind, higher pressures are to the person's right if in the Northern Hemisphere and to the left if in the Southern. Thus, in the Northern Hemisphere, flow is counterclockwise about low-pressure centers and clockwise about high-pressure centers, with the direction of the flow reversed in the Southern Hemisphere. See also Geostrophic wind; Weather map.
Isobar (nuclear physics)
One of two or more atoms which have a common mass number A but which differ in atomic number Z. Thus, although isobars possess approximately equal masses, they differ in chemical properties; they are atoms of different elements. Isobars whose atomic numbers differ by unity cannot both be stable; one will inevitably decay into the other. See also Electron capture; Radioactivity.
| Dental Dictionary: isobar |
In radiochemistry, one of two or more different nuclides having the same mass number.
| Geography Dictionary: isobar |
A line on a map or chart that joins places with the same atmospheric pressure. By reading the isobars over a large area it is possible to gain a visual impression of any anticyclones or depressions that may be present. Isobaric areas are parts of the atmosphere having uniform pressure, while an isobaric surface is a surface on which any point experiences the same atmospheric pressure.
| Columbia Encyclopedia: isobar |
| Veterinary Dictionary: isobar |
1. one of two or more chemical species with the same atomic weight but different atomic numbers.
2. a line on a map or chart depicting the boundaries of an area of constant atmospheric pressure.
| Wikipedia: Isobar |
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Isobar may refer to:
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| Translations: Isobar |
Dansk (Danish)
n. - isobar, ligetrykslinje
Français (French)
n. - isobare
Deutsch (German)
n. - Isobare (Linie gleichen Luftdrucks), Isobar
Ελληνική (Greek)
n. - (μετεωρ.) ισοβαρής (καμπύλη)
Português (Portuguese)
n. - isóbaro (m) (Fís.Nucl.)
Español (Spanish)
n. - isobara
Svenska (Swedish)
n. - isobar (meteor. el. kem.)
中文（简体）(Chinese (Simplified))
等压线, 同重核, 同重元素
中文（繁體）(Chinese (Traditional))
n. - 等壓線, 同重核, 同重元素
العربيه (Arabic)
(الاسم) خط على الخارطه الجويه يصل الأماكن المتساويه في الضغط الجوي
עברית (Hebrew)
n. - קו לחץ אוויר שווה, איזובר, איזוטופ של יסוד כימי השווה במשקלו האטומי לאיזוטופ אחר
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| Shopping: isobar |
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Copyrights:
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 | Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved. Read more |
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| Sci-Tech Encyclopedia. McGraw-Hill Encyclopedia of Science and Technology. Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved. Read more |
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| Dental Dictionary. Mosby's Dental Dictionary. Copyright © 2004 by Elsevier, Inc. All rights reserved. Read more |
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| Geography Dictionary. A Dictionary of Geography. Copyright © Susan Mayhew 1992, 1997, 2004. All rights reserved. Read more |
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| Columbia Encyclopedia. The Columbia Electronic Encyclopedia, Sixth Edition Copyright © 2003, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/. Read more |
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| Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved. Read more |
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| Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Isobar". Read more |
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| Translations. Copyright © 2007, WizCom Technologies Ltd. All rights reserved. Read more |
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