2015-05-15 17:00:11 +00:00
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/*
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* Author: Ruthberg
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*
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2015-05-15 17:58:24 +00:00
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* Calculates heat index based on temperature and relative humidity
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2015-05-15 17:00:11 +00:00
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*
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* Arguments:
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* 0: temperature - degrees celcius <NUMBER>
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* 2: relativeHumidity - value between 0.0 and 1.0 <NUMBER>
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*
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* Return Value:
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* 0: heat index <NUMBER>
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*
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* Return value:
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* None
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*/
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#include "script_component.hpp"
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2015-05-16 09:12:29 +00:00
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#define __C1 -8.784695
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#define __C2 1.61139411
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#define __C3 2.338549
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#define __C4 -0.14611605
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#define __C5 -0.012308094
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#define __C6 -0.016424828
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#define __C7 0.002211732
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#define __C8 0.00072546
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#define __C9 -0.000003582
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2015-05-15 19:10:46 +00:00
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PARAMS_2(_t,_rh);
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2015-05-15 17:00:11 +00:00
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_rh = _rh * 100; // relative humidity in %
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// Source: https://en.wikipedia.org/wiki/Heat_index
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(__C1 + __C2 * _t + __C3 * _rh + __C4 * _t * _rh + __C5 * _t^2 + __C6 * _rh^2 + __C7 * _t^2 * _rh + __C8 * _t * _rh^2 + __C9 * _t^2 * _rh^2)
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