TY - JOUR A1 - Horseman, A. M. A1 - Richardson, T. A1 - Boardman, A. T. A1 - Tych, W. A1 - Timmis, R. A1 - MacKenzie, A. R. T1 - Calibrated digital images of Campbellā€“Stokes recorder card archives for direct solar irradiance studies JO - Atmos. Meas. Tech. J1 - AMT VL - 6 IS - 5 SP - 1371 EP - 1379 Y1 - 2013/05/23 PB - Copernicus Publications SN - 1867-8548 UR - https://amt.copernicus.org/articles/6/1371/2013/ L1 - https://amt.copernicus.org/articles/6/1371/2013/amt-6-1371-2013.pdf DO - 10.5194/amt-6-1371-2013 ER -