• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Professional Geographer >Interpolating U.S. Decennial Census Tract Data from as Early as 1970 to 2010: A Longitudinal Tract Database
【24h】

Interpolating U.S. Decennial Census Tract Data from as Early as 1970 to 2010: A Longitudinal Tract Database

机译：插值1970年至2010年的美国十年期人口普查资料：纵向资料库

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Differences in the reporting units of data from diverse sources and changes in units over time are common obstacles to analysis of areal data.We compare common approaches to this problem in the context of changes over time in the boundaries of U.S. census tracts. In every decennial census, many tracts are split, consolidated, or changed in other ways from the previous boundaries to reflect population growth or decline. We examine two interpolation methods to create a bridge between years, one that relies only on areal weighting and another that also introduces population weights. Results demonstrate that these approaches produce substantially different estimates for variables that involve population counts, but they have a high degree of convergence for variables defined as rates or averages. Finally, the article describes the Longitudinal Tract Database (LTDB), through which we are making available public-use tools to implement these methods to create estimates within 2010 tract boundaries for any tract-level data (from the census or other sources) that are available for prior years as early as 1970.
机译：来自不同来源的数据的报告单位之间的差异以及单位随时间的变化是面积数据分析的常见障碍。我们在美国人口普查范围内随时间变化的情况下比较了解决此问题的常用方法。在每一个十年一次的人口普查中，许多区域与以前的边界被分割，合并或以其他方式改变，以反映人口的增长或下降。我们研究了两种插值方法以在年份之间建立桥梁，一种仅依靠面积加权，另一种也引入人口加权。结果表明，这些方法对涉及人口计数的变量产生了截然不同的估计，但是对于定义为比率或平均值的变量，它们具有高度的收敛性。最后，本文介绍了纵向领域数据库（LTDB），通过该数据库，我们将提供可用的公共工具来实施这些方法，以在2010年道域边界内为任何道域级数据（来自普查或其他来源）创建估算值早在1970年就可以使用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号