2. The method according to claim 1 , further comprising: storing, in a digital memory, a digital map encompassing candidate geographic locations corresponding to at least some of the plurality of sky light scattering models, wherein the outputting the candidate geographic location comprises: automatically selecting a portion of the digital map that corresponds to the candidate geographic location associated with the matching sky light scattering model; and automatically displaying the selected portion of the digital map.
2. The method according to claim 1 , further comprising: storing, in a digital memory, a digital map encompassing candidate geographic locations corresponding to at least some of the plurality of sky light scattering models, wherein the outputting the candidate geographic location comprises: automatically selecting a portion of the digital map that corresponds to the candidate geographic location associated with the matching sky light scattering model; and automatically displaying the selected portion of the digital map. 4. The method according to claim 2 , wherein the digital map comprises a street map.