1) Load an image
Image loading is done in a few mouse clicks (click the disk icon and select the image name from a list). WinSCANOPY then displays the image on screen.
2) Specify the region to analyse
To analyse an image, you must indicate which region is the hemisphere. This can be done by three methods:
3) Sample identification
When you release the mouse button after the hemisphere creation, WinSCANOPY automatically displays the sample identification window that allows you to set the information specific to the image being analysed. You can customize this window's information (choose which information is shown). Some of this information is used for the analysis, latitude and longitude are used to calculate solar paths for example, while the rest is simply reproduced in the data files along with the measurements. When you click OK in this identification window, the analysis begins and is displayed after completion.
The hemisphere’s diameter and position in the image are also saved in the measurements data file so these parameters can be verified after the analysis. The analysis data and settings are also saved with the image (in the same tiff file) and can be retrieved later by WinSCANOPY to recreate the analysis.
4) Analysis validation
When the analysis is complete, it is visible in the main window. The sky grid, divided in the number of azimuthal and zenithal divisions that you choose, is displayed in yellow. Messages to the operator and partial analysis data are displayed to the left of the image. Detailes data are saved in WinSCANOPY's data files.
Additional information about a sky region can be displayed by clicking it in the image.
Suntracks, each containing the sun’s position in the image for different hours of a particular day, are displayed with rainbow-style colors (the color is related to the intensity of the radiation level above the canopy). The date is displayed close to it.
When you click a suntrack, information about its closest point to the clicked position is displayed. This includes the date, hour and instantaneous radiation value for that moment. Its data are also displayed in the graphic above the image and summarized to the left of the image.
Menus in the upper-right corner of the graphic (all versions except Mini) allow you to select the type of data and the relevant options you wish to be displayed. The available data are:
1) Radiation level per hour of the day for the active suntrack
2) Radiation level per day
3) Gap fractions in function of zenith or azimuthal direction
4) Leaf angle distribution
5) Sunfleck frequency distribution (number in function of duration in minutes)
6) Sunfleck duration (total in minutes) per day of the growing season
7) Gaps size cumulative distribution
8) Leaf projection coefficient in function of zenith angle
9) Clumping index in function of zenith angle
5) Data saving
At the end of the analysis, data are automatically saved by WinSCANOPY in standard ASCII text format that is well adapted to manipulation into spreadsheet programs like Microsoft Excel. You have entire control on what is saved in data files (Regular, Pro). You can choose to save or not:
Data produced by WinSCANOPY fall into these categories (the list below is incomplete):
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