code: def _gti_dirint_gte_90(poa_global, aoi, solar_zenith, solar_azimuth,
                         surface_tilt, times, kt_prime,
                         pressure=101325., temp_dew=None, albedo=.25):
      
      kt_prime_gte_90 = _gti_dirint_gte_90_kt_prime(aoi, solar_zenith,
                                                    solar_azimuth, times,
                                                    kt_prime)
  
      I0 = get_extra_radiation(times, 1370, 'spencer')
      airmass = atmosphere.get_relative_airmass(solar_zenith, model='kasten1966')
      airmass = atmosphere.get_absolute_airmass(airmass, pressure)
      kt = kt_prime_gte_90 * _kt_kt_prime_factor(airmass)
      disc_dni = np.maximum(_disc_kn(kt, airmass)[0] * I0, 0)
  
      dni_gte_90 = _dirint_from_dni_ktprime(disc_dni, kt_prime, solar_zenith,
                                            False, temp_dew)
  
      dni_gte_90_proj = dni_gte_90 * tools.cosd(solar_zenith)
      cos_surface_tilt = tools.cosd(surface_tilt)
  
      # isotropic sky plus ground diffuse
      dhi_gte_90 = (
          (2 * poa_global - dni_gte_90_proj * albedo * (1 - cos_surface_tilt)) /
          (1 + cos_surface_tilt + albedo * (1 - cos_surface_tilt)))
  
      ghi_gte_90 = dni_gte_90_proj + dhi_gte_90
  
      return ghi_gte_90, dni_gte_90, dhi_gte_90
docs: GTI-DIRINT model for AOI >= 90 degrees. See Marion 2015 Section 2.2.
  
      See gti_dirint signature for parameter details.