Northern Hemisphere Mean Sea Level Pressure data now available ============================================================== This data set holds gridded (5° latitude by 10° longitude grid) Northern Hemisphere (north of 15° N) monthly and daily series of Mean Sea Level Pressure (MSLP) fields. The monthly series data are available for the period 1873 to 1997; the daily series data are available for the period 1881 to 1997 . More information available at http://www.badc.rl.ac.uk/data/mslp/ BADC Team 04/12/2001