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Data Management Info

For any questions regarding data formats or access, please contact the data manager.

Data Access

Preliminary and final data files will be posted to the data download (WP-3D, RHB) as soon as they are available. All data files are to be considered preliminary unless otherwise noted.

File Format

Data files will be available in the ICARTT format. Please note that this format now specifies that the data is comma-delimited, not space-delimited. NASA maintains the complete documentation for the ICARTT format. A Windows-based application called FScanBrowser was developed by Ali Aknan at NASA to check file format compliance. He also developed a web-based tool to check file formats. For users of the application Igor, there are software tools available (files are zipped; password required): 2006GeneralMacros.ipf, 2006GeneralMacrosHelp.ihf, 2006IcarttFormat.ipf

Data file names will be of the form dataID_locationID_YYYYMMDD_R#[_comments].ict where dataID indicates the type of measurement, locationID is either NP3 (the NOAA WP-3D) or RHB (NOAA R/V Ronald H. Brown), YYYYMMDD indicates date of the beginning of the measurement (or when the flight began), R# indicates a revision number, and the optional [_comments] indicates any special merging.

Time values are reported in UTC as seconds after midnight from the date given in the file name. The date in the file name is duplicated in the file header; in many files it appears at the beginning of the 7th line in yyyy mm dd format. The name of the time data column used for most of the fast response NOAA WP-3D measurements is "AOCTimewave". (AOC is an acronym for Aircraft Operations Center, the NOAA facility responsible for the NOAA WP-3D aircraft.)

Many investigators use a software program called Igor for data analysis. While the text-based ICARTT format is the data exchange format, all data files will also be available in an Igor Binary format.