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This is the observational data which the National Meteorological center (NMC) used in their
analyses. NMC retrieved the reports off of the GTS and accumulated
them in files with a synoptic date/time stamp. This stamp corresponded
to the analysis times of the models which used the data.
For the curious, a history of U.S. weather data technology is here.
Background information about the characteristics of this data may be
found in An Introduction to Atmospheric and Oceanographic Datasets.
There is general basic information in its Introduction.
More specific information may be found in these chapter(s) or section(s):
Upper Air Observations.
One should always be aware of Observational Data Problems.
You may wish to refer to Other Sources of Data.
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| Updated 22 July 2005 |
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