Country-Level Population and Downscaled Projections Based on the SRES A1, B1, and A2 Scenarios, 1990-2100

The Country-Level Population and Downscaled Projections Based on Special Report on Emissions Scenarios (SRES) A1, B1, and A2 Scenarios, 1990-2100, were adopted in 2000 from population projections realized at the International Institute for Applied Systems Analysis (IIASA) in 1996. The Intergovernmental Panel on Climate Change (IPCC) SRES A1 and B1 scenarios both used the same IIASA "rapid" fertility transition projection, which assumes low fertility and low mortality rates. The SRES A2 scenario used a corresponding IIASA "slow" fertility transition projection (high fertility and high mortality rates). Both IIASA low and high projections are performed for 13 world regions including North Africa, Sub-Saharan Africa, China and Centrally Planned Asia, Pacific Asia, Pacific OECD, Central Asia, Middle East, South Asia, Eastern Europe, European part of the former Soviet Union, Western Europe, Latin America, and North America. This data set is produced and distributed by the Columbia University Center for International Earth Science Information Network (CIESIN).

本数据集收录了基于《排放情景特别报告》（SRES）A1、B1及A2情景的1990年至2100年国家层面人口及细化预测数据。该数据集于2000年采纳自国际应用系统分析研究所（IIASA）于1996年实现的人口预测。政府间气候变化专门委员会（IPCC）的SRES A1和B1情景均采用了IIASA的“快速”生育率转变预测，该预测假设低生育率和低死亡率。SRES A2情景则采用了对应的IIASA“缓慢”生育率转变预测（高生育率和高死亡率）。IIASA的低生育率和高生育率预测均针对包括北非、撒哈拉以南非洲、中国及中央计划亚洲、太平洋亚洲、太平洋经合组织、中亚、中东、南亚、东欧、前苏联欧洲部分、西欧、拉丁美洲和北美在内的13个世界区域进行。该数据集由哥伦比亚大学国际地球科学信息网络中心（CIESIN）制作与分发。