@classmethod
def AtmosCorrLambertianFromReflectance(cls, reflectance):
    """Set 6S to perform atmospheric correction assuming a Lambertian surface, using a given reflectance value.

        Arguments:
        * ``reflectance`` -- Reflectance of the surface.

        """
    return '0 Atm. correction Lambertian\n%f reflectance\n' % (reflectance * -1
        )
