NCAR-NMC Upper Air

NCAR-NMC Upper Air is historical digital data set DSI-6309 archived at the National Climatic Data Center (NCDC). This is meteorological upper air data. This is a small, historical upper air data set that was created by the National Center for Atmospheric Research (NCAR) and the old National Meteorological Center (now the National Centers for Environmental Prediction (NCEP) in the National Weather Service (NWS)) and archived at the NCDC. Data is global for the 2 year period 1971-2. DSI-6309 was included in the much larger Comprehensive Aerological Data Set (CARDS) Upper Air data set, DSI-6305, which was quality controlled as it was assembled from many smaller data sets. DSI-6309 itself was not quality controlled at the NCDC. Most users should not request DSI-6309, but should instead opt for DSI-6305. Major parameters in upper air data sets are: pressure, temperature, relative humidity, and wind speed and direction.