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Data ProcessingThe processing software was conceived specifically to process data from IOEBs, employing basic processing functions in individual modules designed for expandability to handle future systems requirements. Input files of ARGOS hexadecimal data is processed by dividing the location, or buoy drift data, from the sensor data, and treating each set separately, for each buoy. The location data consists of ARGOS quality 2 or 3 positions from each PTT on a particular IOEB, which are subsequently screened, interpolated, and combined with similarly processed locations from the other PTT, and further smoothed with a 6-hr triangular filter to produce an hourly timeseries with a standard error we calculated to be ~150 m. The sensor data is prefiltered, combined, adjusted for buoy drift, and screened with a Gaussian first difference filter to produce unevenly spaced timeseries of each environmental or physical variable measured by the IOEB. Every variable is output to a unique file per year, per buoy consisting of a two-column timeseries. This format allows for easy data exchange, and facilitates visual output using the GMT-SYSTEM plotting tools. A full description of the processing scheme, a description of field operations, and plots of the data are available in WHOI Technical Report 99-12. Output data availabilityData files are available in both tar.Z and zip formats for compatability with both UNIX and PC systems. Click on the links to the right of the page to download complete yearly archives for each IOEB. Alternately, log on and get the compressed files using FTP: ftp://ioeb.whoi.edu ftp> ioeb.whoi.edu ftp> User: anonymous ftp> cd zip (or tar, or src) ftp> bin ftp> get “filename” ftp> bye Output Data FilenamesMost of the individual uncompressed output files are two column files where the first column contains the decimal day of the year, and the second column the variable measurement. Filename = prefix + yy (s) . ext where prefix is defined below yy = two number year s = subscript c for drift corrected, r for recovered data, s for screened data, t for temporary ext = buoy id extension Example: a0e1_92c.b92 = 92 BGY IOEB: drift corrected ADCP/DPM 0, bin 1, east vector for 1992
IADP Processing FilesA complete description of the IADP processing scheme, all the source code and command files, postscript files of plots of the data, and descriptive text and drawings programs are also available for downloading from the src directory. ftp://ioeb.whoi.edu iadp_cmd.zip/tar.Z All IOEB .exe and .cmd files iadp_src.zip/tar.Z C source code for IADP .exe programs ContactRick Krishfield Department of Geology & Geophysics Woods Hole Oceanographic Institution Clark 128 - MS 23 Woods Hole, MA 02543-1541 Phone: (508) 289-2849 Fax: (508) 457-2175 e-mail: rkrishfield@whoi.edu Last updated: March 12, 2011 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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