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DMSP Nighttime Lights of China: D i Driven by Growth b G th - - PowerPoint PPT Presentation
DMSP Nighttime Lights of China: D i Driven by Growth b G th - - PowerPoint PPT Presentation
DMSP Nighttime Lights of China: D i Driven by Growth b G th Christopher D. Elvidge (NOAA) Ch i h D El id (NOAA) Kimberly Baugh (CIRES), Daniel Ziskin (CIRES), Sharolyn J. Anderson (CIRES) h l d ( ) and Tilottama Ghosh (CIRES) February
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Version 4 DMSP Nighttime Lights Time Series (1992 2009) Time Series (1992‐2009)
- http://www.ngdc.noaa.gov/dmsp/downloadV4composites.html
f b dd d
- Data for 2010 to be added soon
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Temporal Loops Temporal Loops
- http://www.ngdc.noaa.gov/dmsp/data/web_
data/china_movies/china/China_movie.html _ _
- http://www.ngdc.noaa.gov/dmsp/data/web_
data/china movies/hong kong/Hong Kong data/china_movies/hong_kong/Hong_Kong_ movie.html
- http://www.ngdc.noaa.gov/dmsp/data/web_
data/china movies/hainan/Hainan Island mo data/china_movies/hainan/Hainan_Island_mo vie.html
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Color Composite Image 1992 = blue, 2000 = green, 2010 = red
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Aggregated Sum of Lights Index Aggregated Sum‐of‐Lights Index
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Strong Correlation to GDP R2 = 0.97
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Strong Correlation to Population R2 = 0.93
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Countries of the World
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Comparison to USA Comparison to USA
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Summary Summary
- Satellite observed nighttime lighting in China more than doubled
from 1992 to 2009 from 1992 to 2009.
- The growth in lighting tracks growth in both GDP and population.
- This pattern is typical of the countries undergoing rapid
d l ( i l i lb i l d h ) development (e.g. Vietnam, Algeria, Albania, Portugal and others).
- Developed countries, like USA have stable lighting across the same
time period, perhaps due to improvements in lighting efficiency?
- There is an indication that the growth of lighting in China slowed
due to the economic downturn that started in 2008.
- At some point it is anticipated that growth in lighting in China will
At some point it is anticipated that growth in lighting in China will stabilize, similar to the pattern of developed countries.
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Sutton and Liu Presentations Sutton and Liu Presentations
- http://www.youtube.com/watch?v=ThGdIfSk
OSo h // h /P i /
- http://www.authorstream.com/Presentation/