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Northern Hemisphere Surface Air Temperature Variations: 1851-1984, P. D. Jones, S. C. B.Raper, Raymond S. Bradley, H. F. Diaz, P. M. Kelly, T. M. L.Wigley
Northern Hemisphere Surface Air Temperature Variations: 1851-1984, P. D. Jones, S. C. B.Raper, Raymond S. Bradley, H. F. Diaz, P. M. Kelly, T. M. L.Wigley
Raymond S Bradley
A new compilation of monthly mean surface air temperature for the Northern Hemisphere for 1851-1984 is presented based on land-based meteorological station data and fixed-position weather ship data. This compilation differs from others in two ways. First, a considerable amount of new data, previously hidden away in archives, has been included, thus improving both spatial and temporal coverage. Second, the station data have been analyzed to assess their homogeneity. Only reliable or corrected station data have been used in calculating area averages. Grid point temperature estimates have been made by interpolating onto a 50 latitude by 100 longitude grid for …