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Donald Haines in 1988 that measures the potential for dry, unstable air to contribute to the development of large or erratic wildland fires. The index is derived from the stability (temperature difference between different levels of the atmosphere) and moisture content
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A Haines Index of 6 means a high potential for an existing fire to become large or exhibit erratic fire behavior, 5 means medium potential, 4 means low potential, and anything less than 4 means very low potential.
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Winkler, Julie A.; Potter, Brian E.; Wilhelm, Dwight F.; Shadbolt, Ryan P.; Piromsopa, Krerk; Bian, Xindi (2007). "Climatological and statistical characteristics of the Haines Index for North
America".
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or simulated by a numerical weather prediction model. The index is calculated over three ranges of atmospheric pressure: low elevation (950-850
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346:Convective available potential energy (CAPE)
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108:International Journal of Wildland Fire
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71:. USA Forest Service. Archived from
39:. These data may be acquired with a
308:Convective condensation level (CCL)
656:. You can help Knowledge (XXG) by
514:Equivalent potential temperature (
26:) is a weather index developed by
16:Estimation of the risk of wildfire
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366:Conditional symmetric instability
212:Meteorological data and variables
640:
313:Lifting condensation level (LCL)
298:Cloud condensation nuclei (CCN)
24:Lower Atmosphere Severity Index
561:Wet-bulb potential temperature
403:Level of free convection (LFC)
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604:Pressure-gradient force (PGF)
526:Sea surface temperature (SST)
361:Convective momentum transport
418:Bulk Richardson number (BRN)
622:Maximum potential intensity
388:Free convective layer (FCL)
351:Convective inhibition (CIN)
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556:Wet-bulb globe temperature
413:Maximum parcel level (MPL)
536:Thermodynamic temperature
470:Forest fire weather index
172:Forest fire weather index
144:"Haines index definition"
458:Equivalent temperature (
371:Convective temperature (
255:Surface weather analysis
505:Potential temperature (
250:Surface solar radiation
713:Meteorological indices
652:–related article is a
495:Relative humidity (RH)
383:Equilibrium level (EL)
356:Convective instability
718:Wildfire suppression
584:Atmospheric pressure
551:Wet-bulb temperature
453:Dry-bulb temperature
448:Dew point depression
33:dew point depression
546:Virtual temperature
531:Temperature anomaly
225:Adiabatic processes
22:(also known as the
318:Precipitable water
723:Meteorology stubs
703:Eponymous indices
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599:Pressure gradient
408:Lifted index (LI)
177:Wildfire modeling
75:on April 16, 2014
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146:. Archived from
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114:(2): 139–152.
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69:"Haines Index"
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45:millibars (mb)
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708:Hazard scales
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594:Barotropicity
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150:on 2024-01-25
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28:meteorologist
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658:expanding it
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500:Mixing ratio
475:Haines Index
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285:Condensation
152:. Retrieved
148:the original
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77:. Retrieved
73:the original
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23:
20:Haines Index
19:
18:
650:meteorology
589:Baroclinity
436:Dew point (
428:Temperature
328:Water vapor
697:Categories
566:Wind chill
480:Heat index
338:Convection
275:Wind shear
260:Visibility
240:Lapse rate
154:2018-05-20
55:References
41:radiosonde
37:atmosphere
265:Vorticity
245:Lightning
230:Advection
116:CiteSeerX
614:Velocity
576:Pressure
490:Humidity
393:Helicity
235:Buoyancy
166:See also
79:16 April
485:Humidex
398:K Index
218:General
118:
648:This
293:Cloud
654:stub
270:Wind
94:Noaa
81:2014
303:Fog
126:doi
699::
124:.
112:16
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671:v
660:.
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519:e
516:θ
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507:θ
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441:d
438:T
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376:c
373:T
205:e
198:t
191:v
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83:.
31:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.