Writing about my data
Sample: To analyse the wind profile over South Pole, in Antarctica, I downloaded via FTP 40 years of hourly data, i.e., the sample I am going to study covers more than 350,000 wind speed in every 2 meters. The study uses the database available on the website of the Antarctic Meteorological Research Center (AMRC), which is a research center, focused on meteorology in Antarctica and adjacent regions.
Procedures and measures: Radiosondes were used to collect hourly data since 1977
“The radiosonde is a small, expendable instrument package that is suspended below balloon filled with either hydrogen or helium. As the radiosonde rises, sensors on the radiosonde measure values of pressure, temperature, and relative humidity.
These sensors are linked to a battery powered radio transmitter that sends the sensor measurements to a ground receiver. By tracking the position of the radiosonde in flight via GPS (global positioning system), information on wind speed and direction aloft is also obtained.”
Description from NOAA @ http://www.srh.noaa.gov/jetstream/upperair/radiosondes.html
Images from Google
 The main objective of the study is the comparison between the dimensionless velocity profiles designed with the radiosonde data and the dimensionless profiles resulting from theoretical equations based on the similarity theory.
