SCAMP measures and records CTD and other parameters at roughly 1 mm intervals in water column profiles. A typical profile will produce a large volume of data. SCAMP’s Matlab software provides a software environment that customers may use to process and display the collected data.

PME provides software in to forms: in commented script files (*.m) that the customer can read or modify, and in mex files (*.dll) that can not be read or modified. In general the script files implement processing steps and data display while the mex files do actual processing steps.

The customer must supply Mathworks Matlab software, revision 5.1 or later. PME supports only the Windows P.C. platform but the software will operate on other platforms if the mex files are re-compiled. PME will in some cases provide source code to enable re-compilation.

Processing of microstructure measurements is an evolving science. PME’s has implemented the complete path beginning at sensor measurements and ending with dissipation. Various methods used within this path are the subject of on-going development by PME and by the microstructure community. PME’s software is designed as a shell that enables customers to understand the path and substitute their own methods at appropriate points.

The GUI is begun by starting Matlab, then changing directories to the directory that contains the SCAMPGUI files. SCAMP.M is the central file and accesses the other files. After SCAMP.M is run the GUI display above appears, except that no data are displayed.

The first activity is to click the LOAD button and browse to a SCAMP data file. The GUI will load old SCAMP files as well as files collected with the USB SCAMP. After file selection a brief period elapses while data are processed. When processing is completed the results can be viewed. Example profile 1820 is supplied for testing the GUI.

The left two graphs present full-profile results. These include both directly measured data such as CTD and also full-profile processing results such as salinity. Results are selected from the drop-down boxes directly above the graphs.

The right two graphs present processing results from segments of the profile. Segments of both directly measured data and processed data can be viewed. These are essentially ‘magnified’ views of the data presented in the left (full-profile) two graphs. Additionally other processed results that apply only to the current segment can be displayed. Results are selected from the drop-down boxes directly above the graphs.

Segments within the data may be selected sequentially by clicking the <SEG and SEG> buttons. The horizontal dotted red lines on the left two graphs indicate the currently selected segment.

Data may be plotted vs time or vs depth by selection of the appropriate radio box in the upper right corner of the GUI.

New data may be loaded by repeating the LOAD process. Old data are replaced after processing.

GUI operation is terminated by selecting the X button at window upper right corner.

One additional note: the *.dll programs use arrays of rows rather than the more normal Matlab arrays of columns. The *.dll programs also count array elements beginning with index 0, not the Matlab convention of beginning with index 1. This is not a problem in most cases but beware of this feature. It is clearly stated in the *.m files where appropriate.