constants.RAD_TO_PAR

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float(x) -> floating point number

Convert a string or number to a floating point number, if possible.

src/g/d/GDAY-HEAD/src/mate.py GDAY(Download)

            # convert MJ m-2 d-1 to -> umol m-2 day-1
            # 0.5 ratio of PAR to SW x MJ_TO_MOL (4.6) = 2.3
            conv = const.RAD_TO_PAR * const.MJ_TO_MOL * const.MOL_TO_UMOL
            par = self.met_data['sw_rad'][day] * conv

src/g/d/GDAY-HEAD/src/mate_with_von_caem.py GDAY(Download)

        else:
            # convert MJ m-2 d-1 to -> umol m-2 day-1
            conv = const.RAD_TO_PAR * const.MJ_TO_MOL * const.MOL_TO_UMOL
            par = self.met_data['sw_rad'][day] * conv