Input data for "Transformative Changes of Beijing in the Decade of the 2000s"

The DSM_QSCAT_data for Beijing, representing annual infrastructure-based urban observations at a posting of ~1 km, are obtained by applying the Dense Sampling Method [https://doi.org/10.1007/978-0-387-36699-9] to Level L1B Ku-Band QuikSCAT satellite data [https://podaac.jpl.nasa.gov/dataset/QSCAT_LEVEL_1B_V2] which were continuously collected between July 19^th, 1999 and November 22^nd, 2009 by the SeaWinds scatterometer.<br>The GOME_SCI_data for Beijing, representing tropospheric NO² column densities averaged annually and posted approximately 14 km, are derived from GOME [http://dx.doi.org/10.1175/1520-0469(1999)056&lt;0151:TGOMEG&gt;2.0.CO;2] and SCIAMACHY [http://dx.doi.org/10.1175/1520-0469(1999)056&lt;0127:SMOAMM&gt;2.0.CO;2] satellite observations acquired between 2000–2002 and 2003–2009 [https://doi.org/10.1038/nature040927l], respectively.<br>Figure S1 allows to visually compare annual DSM-based urban area extents against the corresponding intercalibrated stable night light data [https://doi.org/10.1109/TGRS.2016.2572724] for each year in the 2000s.

北京地区DSM_QSCAT数据集为基于基础设施的年度城市观测数据，空间分辨率约1公里。该数据集通过对L1B级Ku波段QuikSCAT卫星数据（https://podaac.jpl.nasa.gov/dataset/QSCAT_LEVEL_1B_V2）应用密集采样法（Dense Sampling Method）得到，此类卫星数据由SeaWinds散射计于1999年7月19日至2009年11月22日期间持续采集。<br>北京地区GOME_SCI数据集包含经年度平均的对流层二氧化氮（NO₂）柱浓度数据，空间分辨率约14公里。该数据集分别源自2000-2002年采集的GOME卫星观测数据（http://dx.doi.org/10.1175/1520-0469(1999)056&lt;0151:TGOMEG&gt;2.0.CO;2）以及2003-2009年采集的SCIAMACHY卫星观测数据（http://dx.doi.org/10.1175/1520-0469(1999)056&lt;0127:SMOAMM&gt;2.0.CO;2），相关研究的DOI标识为https://doi.org/10.1038/nature040927l。<br>补充图S1可用于可视化对比2000年代各年份基于DSM的城市建成区范围与对应经过交叉定标的稳定夜间灯光数据（https://doi.org/10.1109/TGRS.2016.2572724）。