HUMIDEX

Humidex Dealers Humidex Uns 209 Humidex Price Humidex Calculator Humidex Air Systems Humidex Pennsylvania Humidex Ventilation System Where to Buy Humidex




Cloud:

| Humidex Dealers | Humidex Uns 209 | Humidex Price | Humidex Calculator | Humidex Air Systems | Humidex Pennsylvania | Humidex Ventilation System | Where to Buy Humidex |

| Humidex | Heat_index | Humidity | Wind_chill | Banff,_Alberta | Geography_of_Toronto | Weather_extremes_in_Canada | Sarnia | Clyde_River,_Nunavut | Geography_of_Hamilton,_Ontario | Ottawa | Grande_Prairie | Windsor,_Ontario | Cape_Parry | Matagami | Climate_of_Moncton | Suffield,_Alberta | Barth,_Germany | Red_Lake,_Ontario |

  1. Du refroidissement éolien et du facteur humidex - Retrace l'historique de l'invention de ces deux indices au Canada, et explique pourquoi ils constituent des supercheries scientifiques.
  2. Air Tech Equipment Ltd. - Supply a range of de-humidifiers. Includes online operational videos and product specifications.


  3. [ Link Deletion Request ]

    humidex dehumidifier humidex system humidex price humidex atlantic humidex reviews my dry home humidex humidex calculator humidex cost



    Humidex


    The humidex (short for "humidity index") is an index number used by Canadian meteorologists to describe how hot the weather feels to the average person, by combining the effect of heat and humidity. The humidex is a unit-less number based on the dew point, but it is equivalent to dry temperature in degrees Celsius. For example, if the temperature is 30 °C (86 °F), and the calculated humidex is 40, then it indicates the humid heat feels approximately like a dry temperature of 40 °C (104 °F).

    According to the Meteorological Service of Canada, a humidex of at least 30 causes "some discomfort", at least 40 causes "great discomfort" and above 45 is "dangerous". When the humidex hits 54, heat stroke is imminent.

    The current formula for determining the humidex was developed by J.M. Masterton and F.A. Richardson of Canada's Atmospheric Environment Service in 1979. Humidex differs from the heat index used in the United States in being derived from the dew point rather than the relative humidity.

    The record humidex in Canada occurred on July 14, 1961, when Castlegar, British Columbia recorded a humidex of 53.4.[1] This value was almost beaten on July 25, 2007 when Carman, Manitoba hit 53.0.[2]


    Humidex The humidex computation formula


    When the temperature is 30 °C (86 °F) and the dew point is 15 °C (59 °F), the humidex is 34 (note that humidex is a dimensionless number, but that the number indicates an approximate temperature in °C). If the temperature remains 30 °C and the dew point rises to 25 °C (77 °F), the humidex rises to 42. The humidex is higher than the U.S. heat index at equal temperature and relative humidity.

    The humidex formula is as follows:[3]

    \text{Humidex} = \text{Air temperature}\ +\ 0.5555 \times (6.11 \times e^{5417.7530 \times \left(\frac{1}{273.16} - \frac{1}{\text{dewpoint in kelvins}}\right)} - 10)

    The humidity adjustment effectively amounts to one Fahrenheit degree for every millibar by which the partial pressure of water in the atmosphere exceeds 10 millibars.


    Humidex See also



    Humidex References



    Humidex External links




    Humidex Dealers Humidex Uns 209 Humidex Price Humidex Calculator Humidex Air Systems Humidex Pennsylvania Humidex Ventilation System Where to Buy Humidex

    | Humidex Dealers | Humidex Uns 209 | Humidex Price | Humidex Calculator | Humidex Air Systems | Humidex Pennsylvania | Humidex Ventilation System | Where to Buy Humidex | Humidex | Heat_index | Humidity | Wind_chill | Banff,_Alberta | Geography_of_Toronto | Weather_extremes_in_Canada | Sarnia | Clyde_River,_Nunavut | Geography_of_Hamilton,_Ontario | Ottawa | Grande_Prairie | Windsor,_Ontario | Cape_Parry | Matagami | Climate_of_Moncton | Suffield,_Alberta | Barth,_Germany | Red_Lake,_Ontario

    Copyright:
    Dieser Artikel basiert auf dem Artikel http://en.wikipedia.org/wiki/Humidex aus der freien Enzyklopaedie http://en.wikipedia.org bzw. http://www.wikipedia.org und steht unter der Doppellizenz GNU-Lizenz fuer freie Dokumentation und Creative Commons CC-BY-SA 3.0 Unported. In der Wikipedia ist eine Liste der Autoren unter http://en.wikipedia.org/w/index.php?title=Humidex&action=history verfuegbar. Alle Angaben ohne Gewähr.

    Dieser Artikel enthält u.U. Inhalte aus dmoz.org : Help build the largest human-edited directory on the web. Suggest a Site - Open Directory Project - Become an Editor






    Search: deutsch english español français русский

    | deutsch | english | español | français | русский |




    [ Privacy Policy ] [ Link Deletion Request ] [ Imprint ]