paris_MSLP_1670_2007.txt year,month,day,raw pressure, homogenized pressure, difference, code Raw Pressure Pressure series with temp, gravity etc corrections but no homogenization Homogenized pressure The final homogenized series Code Missing values code 1) Filled with Montsouris(1958-2007) 2) Filled with Trappes (1953-2007) 3) One-day interplated values 4) Filled with Trappes (1944-45)