1Rissanen P, Jacobsson C, Madsen H, et al. Nordic methods for quality control of climate data. DNMI-Report 2000,No. 10/2000 KLIMA
2Vejen F, Jacobsson C, Fredriksson U, et al. Quality control of meteorological observations automatic methods used in the Nordic countries. Climate Report, 2002, No. 8/2002, KLIMA
3Eischeid J K, Baker C B, Karl T R. The quality control of long-term climatological data using objective data analysis. J. Appl. Meteor., 1995, 34: 2787-2795