GTS Global Upper Air

GTS Global Upper Air is historical digital data set DSI-6202, archived at the National Climatic Data Center (NCDC). DSI-6202 is historical data from the National Meteorological Center (NMC), which is now the National Centers for Environmental Prediction (NCEP), part of the US National Weather Service. NMC extracted the data from the Global Telecommunications System (GTS). The observations contain all available mandatory and significant levels transmitted under international agreement. Parameters include pressure, height, temperature, relative humidity, and wind speed and direction. The period of record varies from station to station. The general collection began in September 1963 for the Northern Hemisphere. Stations in the Southern Hemisphere are generally not available until mid-1966 or later. Data ends with December 1970.