Campbell Scientific Open Path Eddy Covariance (OPEC) - Manual (Page 29)

OPEC Open-Path Eddy-Covariance System
FIGURE 4-10. List of files created by CardConvert
4.1.4.1 Collecting Data with One Card
If a single card is used to collect the data and the data on the card is not deleted
after copying it to the PC, the datalogger will append the data collected since
the card was removed to the data file on the card. This means that the next
time data is collected and converted from the PC/CF card, the last file in
FIGURE 4-10 will contain a complete hour of data.
Before collecting data for the second and subsequent time, rename the last
partial file from …_0700.dat to …_0700_1.dat. This will ensure that the
complete version of this file is saved to the folder.
CardConvert will not overwrite existing files within a folder. Instead, it will
append a “_n” to the filename, where n is a numeral. FIGURE 4-11 shows the
name change to duplicate files. Note that the duplicate files get mixed in with
the original files within the folder. Rename the duplicate file using a group file
renaming utility. Specifically, find and replace the text “_1.dat” with “.bak”.
Sort the files in the folder by extension and delete the “bak” files (see FIGURE
4-12).
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