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Gill Instruments Ltd
5.14 Display Micro-met Parameters
Micro-met Parameters screen displays micro-meteorological parameters in real time. The results
displayed are selected and the time over which they are calculated is set in the Micro-met options
menu. The calculations performed are described in Appendix B.
Calculated parameters can be written to disk. The results saved are selected in the Micro-met options
menu and are independent of the results displayed.
Pressing the “Alt” and “D” keys simultaneously (Alt-D) will initiate a data download. The user will
be asked for a filename and the selected calculated parameters will be written to that file. The format
of the download is selected from the Options Menu. Once a data display has been started the Alt-D
combination will stop the download without ending the display.
Pressing the “Alt” and “C” keys simultaneously (Alt-C) will clear the screen and re-start the display.
Pressing the “Esc” key will stop any download that is in progress, terminate the display and return
the user to the main menu.
The example screen shows what would be displayed with mean and standard deviation; U, V and W;
covariance of U with V; covariance of U with W; covariance of V with W;U* and Cd selected for
display. Pressing the “Esc” key exits this display and returns to the main menu.
Micro-met Parameters Gill
Instruments Ltd
Mean U +0.168 m/s
Mean V -0.001m/s
Mean W -0.140 m/s
Usig +0.237 m/s
Vsig +0.166 m/s
Wsig +0.087 m/s
UVcov +0.024 m2/s2
UWcov -0.003 m2/s2
Vwcov +0.002 m2/s2
U* +0.000 m/s
Cd +0.000
<Alt-D> Data Download <Alt-C> Clear Screen
<Esc> Exit
Status OK
5.15 Micro-met Parameter Options
This allows the user to select which micro-meteorological parameters to display and which micro-
meteorological parameters to download to disk. It also allows the setting of various user defined
parameters. The calculations performed to derive these parameters are contained in Appendix B.
For each parameter there are two entries. Each may be either a tick or a cross. If the entry under the
‘Disp’ label is a tick then that parameter will be displayed on the micro-met parameters screen. If the
entry under the ‘Log’ label is a tick then that parameter will be written to disk.
HS-50 Research Anemometer Page 15 Issue 02
Doc. No. 1199-PS-0032 November 2004