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Table 2 Change in the lit area in the world and in selected countries between 1992 and 2009

From: Dynamics and spatial distribution of global nighttime lights

 

Change of dimly lit area

Change of bright area

Absolute (km2)

Percent

Absolute (km2)

Percent

China

+574,609

+81.41%

+95,394

+225.76%

India

+448,852

+48.41%

+21,380

+80.95%

Brazil

+243,648

+94.19%

+21,232

+57.86

Russia

+261,858

+36.33%

−25,231

−24.85%

USA

+511,651

+81.41%

−6,316

−1.44%

World

+4,543,889

+48.92%

+261,530

+19.43%

  1. A pixel threshold of 30 is applied to classify dim versus bright pixels.