Analysis of the Development Trend of Global Papers Combining the DMSP-OLS Nighttime Light Data

The multi\|subject cooperation and intersection becomes the main development tendency of the modern sciences.In this study，the remote sensed nighttime light data from the Defense Meteorological Satellite Program(DMSP)Operational Linescan System(OLS)were combined with the global international papers for obtaining the temporal and spatial distribution characteristics and dynamic change characteristics at national and regional scale.The results indicate that most of the countries or regions have the increasing tendencies with the exponential models.There are good correlation between the nighttime light data and international paper for most of the countries or regions.In the 72 calculated countries，there are 53 countries with the correlation coefficients more than 0.5 when the significance level is more than 0.01.Furthermore，the developing countries have higher correlation coefficients than the developed countries.In the top 18 countries with higher correlation coefficients，16 are the developing countries.The night\|time light data can be potentially used to better predict the numbers of countries’ papers.