Night Light of Port-la-Nouvelle (Occitanie) from space (France) Src. Average luminocity for 10x10km area is 12.119% and for 50x50km: 6.6022%.
Square area 10x10 km:
 2.54%
 3.33%
 2.06%
 0.32%
 0.32%
 0%
 0%
 0.16%
 1.11%
 1.27%
 88.89%Square area 50x50 km:
 0.71%
 1.41%
 0.69%
 0.54%
 0.67%
 0.6%
 0.53%
 0.53%
 1.19%
 5.46%
 87.67%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
43° 31' 54.6" North, 2° 20' 25.9" East
43° 1' 11.7" North, 3° 2' 37.2" East
42° 30' 13.3" North, 3° 44' 48.4" East
Some cities around Port-la-Nouvelle sort by population:
• Narbonne
		18.6 km =11.6 mi, 
349°
• Lézignan-Corbières
		30.3 km =18.8 mi, 
310°
• Rivesaltes
		31.1 km =19.3 mi, 
206°
• Saint-Laurent-de-la-Salanque
		27.8 km =17.3 mi, 
189°
• Bompas
		33.1 km =20.6 mi, 
195°
• Sérignan
		34.5 km =21.4 mi, 
33°
• Pia
		32.2 km =20 mi, 
198°
• Coursan
		23.8 km =14.8 mi, 
2°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016