I_bi

Calculates the direct beam solar energy received on an inclined surface between specified
start and end times. Obtained by integrating beam irradiance over the time period.

A set of functions to calculate solar irradiance and insolation on Mars horizontal and inclined surfaces. Based on NASA Technical Memoranda 102299, 103623, 105216, 106321, and 106700, i.e. the canonical Mars solar radiation papers.

Georges Labrèche

marsrad

Mars Solar Radiation

I_bi function

<dl><dt>Ls</dt>
<dd>Areocentric longitude [deg]</dd>
<dt>phi</dt>
<dd>Planetary latitude [deg]</dd>
<dt>tau</dt>
<dd>Atmospheric optical depth (dimensionless)</dd>
<dt>Ts_start</dt>
<dd>Start of integration period [h]</dd>
<dt>Ts_end</dt>
<dd>End of integration period [h]</dd>
<dt>beta</dt>
<dd>Surface tilt/slope angle from horizontal [deg]</dd>
<dt>gamma_c</dt>
<dd>Surface azimuth angle [deg]. Zero facing equator, east negative, west positive (-180 to +180)</dd></dl>

Arguments

Beam insolation on Mars inclined surface over time period — I_bi

<dl>

<dt>Ls</dt>
<dd>Areocentric longitude [deg]</dd>


<dt>phi</dt>
<dd>Planetary latitude [deg]</dd>


<dt>tau</dt>
<dd>Atmospheric optical depth (dimensionless)</dd>


<dt>Ts_start</dt>
<dd>Start of integration period [h]</dd>


<dt>Ts_end</dt>
<dd>End of integration period [h]</dd>


<dt>beta</dt>
<dd>Surface tilt/slope angle from horizontal [deg]</dd>


<dt>gamma_c</dt>
<dd>Surface azimuth angle [deg]. Zero facing equator, east negative, west positive (-180 to +180)</dd>

</dl>

I_bi: Beam insolation on Mars inclined surface over time period

Description

Usage

Value

Arguments