Need very urgent help with LS Factor(USLE)Calculation in ArcGis10 (get strange result

[JuliaHauczinger]

I wanted to calculate the LS Factor of the USLE (Universal Soil Loss Equation) with the tool Raster Calculator in ArcGis 10.
First, I filled my DEM with the tool Fill. (DEM was calculated in UTM)
Second, I calculated the Flow Direction with the Tool Flow Direction.
Third, I calculated the Flow Accumulation with my Flow Direction as Inputfile. [ATTACH=CONFIG]16862[/ATTACH]
Fourth, I calculated the Slope in Degrees by the Spatial Analyst tool Surface and Slope. [ATTACH=CONFIG]16863[/ATTACH]
Fifthly, I used the Equation by Moore and Burch 1986: LS = (Flow Accumulation * Cell Size/22.13)^0.4 * (sin (slope/0.0896))^1.3
Sixthly: I typed in the raster calculator the equation:

(Power((("FlowAcc" * 92.46745509) / 22.13),0.4)) * (Power((Sin("Slope_Degree" / 0.0896)),1.3))

But my result look very very strange! There a lot of white areas! The Raster is not like cover areas.... It looks like that every calculated value is seperated... It looks like a dotted map....What did I wrong?? Did I forget something?? I can`t believe that this is right??!! [ATTACH=CONFIG]16864[/ATTACH]

[Veeraageo]

Hi JoanitoOliveira,

I tried and installed the GISus_M esri add-in  in Arcgis 10.2, however, it's not functional. Just it's only installed and also showing in Arc tool list, but not highlighting any the options in the model.  Kindly suggest me right procedure for installation in order to work on the model. 

Thanks

[SushreeSangitaDash]

Hey @JuliaHauczinger ,

Your formula is correct. Just use the slope in radians (i.e., multiply the slope(in degrees) with 3.14/180 ).

Then you will be getting the correct result.

Thank You