def HI_1453(L_1373, L_1453, L_1503):
    """
        1453 Hydrocarbon Index ==================================================
            Convert numpy arrays of radiance data to a 1453 hydrocarbon index map

        Inputs ==================================================================
            L_1373 : At-sensor radiance at 1373 nm wavelength (numpy array)
            L_1453 : At-sensor radiance at 1453 nm wavelength (numpy array)
            L_1503 : At-sensor radiance at 1503 nm wavelength (numpy array)

        Returns =================================================================
            1453 Hydrocarbon Index Map

    """
    return 1.2 * L_1373 - 1.1 * L_1453 + 0.5 * (1.2 * L_1503 - L_1373 * 1.1)
