A Vertically Detailed Analysis of Some Air Mass Properties

摘要

A method for obtaining a detailed analysis of air mass properties such as temperature and humidity for use in isentropic trajectory models is described. The temperature and humidity of the advected air mass are analyzed as linear combinations of observed temperatures (respectively humidities) at nearby stations. The weights are taken proportional to the inverse of the square of the distance between air mass source and observation point. Since only at some levels the air mass source is known (namely at the trajectory levels), the weights are linearly interpolated between those levels. Some analysis examples are given.