A set of 39 homogenised sea level pressure records, extracted from the Italian Air Force dataset (1951-2000), is introduced and analysed for trends. The data consist of 3-hourly observations. Daily mean pressures are obtained using a method that allows biases to be avoided due to the presence of a high fraction of days that do not have all 8 observations. Trend analysis is performed on seasonal and yearly basis and concerns both the individual station records and the series of their averages. The results show a highly significant positive trend in winter and yearly air pressure all over Italy. It is mainly due to a change-point around 1980. The Italian air pressure records are also compared with the NCAR/NCEP and UKMO gridded data sets. The results give evidence that gridded data capture most of the trend and variability of air pressure over Italy, even if NCAR/NCEP data display some significant inhomogeneities with respect to the station records.
The Italian air force sea level pressure data set (1951-2000). / M. Maugeri, M. Brunetti, F. Monti, T. Nanni. - In: IL NUOVO CIMENTO DELLA SOCIETÀ ITALIANA DI FISICA. C, GEOPHYSICS AND SPACE PHYSICS. - ISSN 1124-1896. - 026:4(2003), pp. 453-467.
|Titolo:||The Italian air force sea level pressure data set (1951-2000).|
MAUGERI, MAURIZIO (Primo)
|Settore Scientifico Disciplinare:||Settore FIS/06 - Fisica per il Sistema Terra e Il Mezzo Circumterrestre|
|Data di pubblicazione:||2003|
|Appare nelle tipologie:||01 - Articolo su periodico|