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  • 软件名称:关联DMSP-OLS灯光数据的全球发文量态势分析
  • 软件大小: 0.00 B
  • 软件评级: ★★★
  • 开 发 商: 王雪梅,马明国
  • 软件来源: 《遥感技术与应用》
  • 解压密码:www.gissky.net

资源简介

摘要: 多学科的协同、渗透、交叉已成为当代科学发展的重要趋势。联合分析遥感获取的DMSP\|OLS灯光数据与全球国际发文数量,以获取国家或地区尺度上国际发文的时空分布及其动态变化特征。分析结果表明:多数国家的发文量呈现指数增长的趋势;国家(或地区)的逐年国际论文发文量与灯光数据存在较好的相关性,在被统计的72个国家中,有53个国家的相关系数达到0.5以上,其相关的显著水平>0.01;发展中国家(或地区)两者的相关系数明显要高于发达国家的相关系数,相关系数高于0.9以上的18个国家中,发展中国家有16个。利用灯光数据可以更好地预测发展中国家的发文数量。 关键词: 灯光数据;  遥感;  文献计量;  全球发文;  空间分析     Abstract: 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.

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