TY - JOUR A1 - Bai, K. A1 - Li, K. A1 - Guo, J. A1 - Yang, Y. A1 - Chang, N.-B. T1 - Filling the gaps of in situ hourly PM2.5 concentration data with the aid of empirical orthogonal function analysis constrained by diurnal cycles JO - Atmos. Meas. Tech. J1 - AMT VL - 13 IS - 3 SP - 1213 EP - 1226 Y1 - 2020/03/11 PB - Copernicus Publications SN - 1867-8548 UR - https://amt.copernicus.org/articles/13/1213/2020/ L1 - https://amt.copernicus.org/articles/13/1213/2020/amt-13-1213-2020.pdf DO - 10.5194/amt-13-1213-2020 ER -