The Critical Limits Series form is shown in 114196507 Figure 1. The user may define up to five different parameters for the critical limits. These can be selected from any parameter that is currently activated in EE. For each dropdown list under Parameter the user selects the parameter of interest and then defines the minimum and maximum values for the critical limits. In the layer box, a range of options are provided: single layer (enter layer number), a range of layers (eg 1-2), average of a series of layer (eg 2:6), or depth averaged (0). Once criteria for critical limits have been entered it is recommended the user save the settings. Selecting the Save button, the user is prompted to input the file name. EE will create a folder called #habitat to store all related files, so by default the new critical limits will be saved into this folder. Configuration files for critical limits series use “.HCL” as the extension which is displayed in Setting File frame.
The Criteria ID will be used to manage the different species. The Criteria ID will be appended to the file name “Hab_Results” of the data file extracted when generating an initial time series, as described further below. The generated data is stored in Data File frame in case of user want wants to reload and view the old result instead of generating a new one.
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The critical limits options act as a series of toggles for each cell in each layer of the model domain. Each cell will meet either some of the criteria , or all of the criteria defined. If a cell doesn’t meet the all the criteria it is set to zero, whereas if a cell does meet all the criteria it is set to one. If a cell is dry it is also set to zero. Using the Series checkbox, the user turns on the generation of output for each parameter. Only one parameter may be output at a time.
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EE will extract all the cell information for each parameter and save it in a post-processing file in the #habitat folder based on the criteria ID. In this example, the file will be called Hab_Results_Muskellunge Adult.dat. This file records the composite time, net weighted criteria (weighted average 0 and 1 of all the cells that meet the bathymetry criteria), area, and volume.
An example of the time series that EE displays is shown in 114196507 Figure 2.
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Figure 2 Habitat Analysis: Critical Limits Series time series.
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Once a time series has been generated, and the post-processing files have been extracted, a new frame is displayed, Secondary Processing of Extracted Results. This option provides the user with further post-processing options. The drop-down menu has the following options: Domain Average, Running Averages, and Single Cell Time Series. For running averages, the user must specify the number of days to be applied for the calculation of the running average..