Night Light of Tianshui (Gansu) from space (China) Src. Average luminocity for 10x10km area is 30.6101% and for 50x50km: 4.4485%.
Square area 10x10 km:
7.69%
9.09%
1.4%
0.35%
0.35%
1.92%
1.4%
3.85%
4.9%
52.1%
16.96%Square area 50x50 km:
0.59%
0.76%
0.41%
0.66%
0.46%
0.36%
0.33%
0.41%
0.6%
6.16%
89.26%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
35° 9' 23.1" North, 105° 2' 21.3" East
34° 34' 46.3" North, 105° 44' 32.6" East
33° 59' 55" North, 106° 26' 43.8" East
Some cities around Tianshui sort by population:
• Lanzhou
238.3 km =148.1 mi,
313°
• Guangyuan
237.8 km =147.8 mi,
178°
• Linxia Chengguanzhen
257.1 km =159.8 mi,
296°
• Hanzhong
204.8 km =127.3 mi,
144°
• Pingliang
137 km =85.1 mi,
38°
• Guozhen
150.1 km =93.3 mi,
99°
• Beidao
13.9 km =8.6 mi,
95°
• Mawu
77.7 km =48.3 mi,
257°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016