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            This data set contains NCEP GFS-FNL Tropopause and 2 PVU Variables Interpolated to DC-8 Aircraft Position and Time Data collected during the Deep Convective Clouds and Chemistry... 
 
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            This data set contains NCEP GFS-FNL Tropopause and 2 PVU Interpolated to NSF/NCAR GV HIAPER Aircraft Position and Time Data collected during the Deep Convective Clouds and... 
 
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            This data set contains NCEP GFS-FNL Tropopause and 2 PVU Interpolated to DLR Falcon Aircraft Postion and Time data collected during the Deep Convective Clouds and Chemistry...