Campbell Open Path Eddy Covariance System Manuel de l'opérateur télécharger pdf (Page 26)

OPEC Open-Path Eddy-Covariance System

4.1.4 File Management with CardConvert

CardConvert is a utility that is shipped with LoggerNet and is used to convert

the files on a card from the compact file format TOB3 to a TOB1, TOA5, or

Array Compatible CSV (see FIGURE 4-7). This utility is installed on the PC

under the Start menu in the Programs | Campbell Scientific | LoggerNet |

Utilities group. To take advantage of all the functionality described in this

section, use CardConvert version 1.2 or later.

Copy the data from the PC/CF card onto the computer using Windows

Explorer. Place the file in a temporary working directory, e.g., C:\Temporary.

It will take about 15 minutes to copy a 1024 Mbyte file (about 28 days of

10 Hz time series from a Basic Open-Path Eddy-Covariance system).

It is good practice to archive the raw data as copied from the

PC/CF card. Use a zip utility to compress the file, before

archiving it to a CD. Compressing a 1024 Mbyte time series file

will take about 2 minutes using the built-in Windows XP zip

utility.

TIP

TOA5

ASCII file

with header

Array

Compatible

ASCI

Arrays without

header

TOB1

Binary File

TOB3

File from

PC/CF Card

FIGURE 4-7. File format flow

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 55 56

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Campbell Open Path Eddy Covariance System Manuel de l'opérateur Page 26