| ... | ... | @@ -19,45 +19,9 @@ graph LR |
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## [FoO.r](FoO.r)
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## (4) FoO of DOD and emissions calculation / wind erosion threshold retrieving / final output netCDF [FoO.r]
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## [R2_em.r&R2_winds.r](R2_em.r&R2_winds.r)
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This script loads the .RData created in the previous steps and does the following to the selected season (you can select the season by changing the variable "**season**" [1=DJF/2=MAM/3=JJA/4=SON/5=Annual]) 12UTC-data :
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* Computes the FoO of DOD overpassing a threshold (0.2 is the threshold explicitly chosen in the code in the variable "**dodthr**")
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* Computes the FoO of emissions overpassing a threshold (0 is the threshold explicitly chosen in the code in the variable "**emthr**")
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* Computes the <img src="http://latex.codecogs.com/gif.latex?u^{*}_t" border="0"/> by applying the FoO method.
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* Computes the <img src="http://latex.codecogs.com/gif.latex?u^{*}_{t_{sd}}" border="0"/> by applying the FoO method.
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* Calculates and plots in screen the bias, RMSE and correlation coefficient between <img src="http://latex.codecogs.com/gif.latex?u^{*}_t" border="0"/> and <img src="http://latex.codecogs.com/gif.latex?u^{*}_{t_{sd}}" border="0"/> with its corresponding values used by the model.
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* Computes the relative error of <img src="http://latex.codecogs.com/gif.latex?u^{*}_t" border="0"/> retrieved through the FoO method with respect to the used by the model.
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* Plots an histogram (number of grid cells .vs. relative error) separating 0-emission and emission sources ["histo_northafrica_relative_error_DJF.png"]
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* Plots two histograms used to have an example of how the method works ["histo_FoO_method.png"/"histo_FoO_method_em.png"]
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* Adapts the results to finally save them in netCDF format.
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Variables included in the final netCDF:
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| Variable Name| Variable Description | Units |
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| ------ | ------ | ------ |
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| FoO_DOD | Frequency of occurrence of DOD overpassing a threshold (0.2 predetermined)|[%]|
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| FoO_em | Frequency of occurrence of emissions overpassing a threshold (0.0 predetermined)|[%]|
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| mc | Moisture correction parameter |[]|
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| mean_em | Mean emissions in the period studied |[kg/m²]|
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| rc | Roughness correction parameter |[]|
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| rel_error | Relative error of u*t_FoO_method compared to the u*t_model|[%]|
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| u*t_FoO_method | u*t retrieved by using the FoO method |[m/s]|
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| u*t_model | mean u*t used by the model in this period |[m/s]|
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| u*tsd_FoO_method_a |u*t for smooth and dry surface obtained by dividing u*t_FoO_method by mc and rc|[m/s]|
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| u*tsd_FoO_method_b |u*t for smooth and dry surface obtained by trandforming u* to u*sd and then applying the FoO method|[m/s]|
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| u*tsd_model |mean u*t for smooth and dry surface used by the model|[m/s]|
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## (5) Regression coefficients for increasing thresholds [R2_em.r][R2_winds.r]
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(5) Regression coefficients for increasing thresholds [R2_em.r][R2_winds.r]
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The following scores for the regression DOD.vs.emissions are computed for increasing thresholds of DOD and emissions (R2_em.r):
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* Regression coefficient (R²)
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* Slope
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| ... | ... | |
