Night Light of Qionghai (Hainan) from space (China) Src. Average luminocity for 10x10km area is 44.4827% and for 50x50km: 4.1112%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
19° 54' 18" North, 109° 45' 39.8" East
19° 14' 33" North, 110° 27' 51" East
18° 34' 38.4" North, 111° 10' 2.3" East
Some cities around Qionghai sort by population:
• Haikou
90.2 km =56 mi, 351°
• Xiuying
86.2 km =53.6 mi, 348°
• Sanya
150.2 km =93.3 mi, 222°
• Wenchang
51.1 km =31.8 mi, 35°
• Xucheng
124.8 km =77.5 mi, 345°
• Jinjiang
72.1 km =44.8 mi, 318°
• Wanning
50 km =31.1 mi, 189°
• Lincheng
110.1 km =68.4 mi, 312°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016