ABSTRACT
Meteorological measurements are measurements of the physical properties of the atmosphere. These measurements are made at all elevations in the troposphere and the stratosphere. For measurements made at elevations above ground or tower level, instruments can be carried aloft by balloons, rockets, or airplanes. The instruments used for meteorological measurements are fabricated for use in the special environment of the atmosphere. This environment varies with the latitude and longitude of the site and the elevation above the ground and above sea level. The mean temperature of the atmosphere for each hour of the day at a particular site has a fairly regular annual and a diurnal variation when this mean temperature is an average over many years for each hour and day of the year. Thermistors usually consist of an inexpensive mixture of oxides of the transition metals. The log of their resistance varies inversely with temperature.
