Card 6u - DIURNAL5 Solar Heating Modeling Request

This optional card defines the calculation positions and local solar time for the diurnal solar heating modeling request.

Parameter Value Description
DIURNAL5 DIURNAL5 (or 65) Mnemonic
ID Integer Request ID number
NINT Integer Number of calculation if CALCOPT = TIME. 1 for CALCOPT = CTE
CALCOPT CTE The diurnal flux is calculated for a single position defined in fields LOCTIME1-3 as the local solar time
TIME Multiple calculation positions are required as defined with the DIURNAL6 cards are present
LOCTIME1 Integer Hour of the local solar time position. Valid only if CALCOPT=CTE and the planet is Earth
Real Angle in degrees along a constant latitude plane, measured from local midnight, in the direction of planet’s rotation. Valid only if CALCOPT=CTE and the planet is not Earth
LOCTIME2 Integer Minutes of the local solar time position. Valid only if CALCOPT=CTE and the planet is Earth
LOCTIME3 Integer Seconds of the local solar time position. Valid only if CALCOPT=CTE and the planet is Earth

NINT

NINT is the number of calculation intervals in the diurnal heating request for CALCOPT = TIME. If CALCOPT = CTE, then NINT should be 1.

CALCOPT

CALCOPT is the calculation option, either CTE (constant time) or TIME.

If CALCOPT = CTE, the LOCTIME1, LOCTIME2 and LOCTIME3 fields define the local solar time position. For this option, the DIURNAL6 Card is not needed.

If CALCOPT = TIME, a Card6 DIURNAL6 is necessary to define additional diurnal heating request parameters.

LOCTIME1

LOCTIME1 is the hours of local solar time if the planet is Earth. Used only for CALCOPT = CTE.

Local solar time is the time elapsed since local midnight.

If the planet is not Earth, LOCTIME1 is the angular position in degrees measured from local midnight in the direction of the planet's rotation at constant latitude. Used only for CALCOPT = CTE option.

LOCTIME2

LOCTIME2 is the minutes of the local solar time if the planet is Earth. Used only for CALCOPT = CTE.

LOCTIME3

LOCTIME3 is the seconds of the local solar time if the planet is Earth. Used only for CALCOPT = CTE.

Code example


DIURNAL5 3 1 CTE 11 23 45
DIURNAL5 3 12 TIME