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Calculating seasonal R erosivity value?
Hi Nat Cappers,
I'm using both RIOS and InVEST to model erosion and nutrient exports in a watershed in Quebec (think similar agriculture and climate to Minnesota). In our system we know that most erosion and nutrient loss occurs in the fall rains, and spring melts & rains.
I'm trying to think about how to best represent this within the SDR and NDR models as well as RIOS (Ièm trying to target agro-environmental practices).
One solution I was considere was trying to model only these two seasons by calculating the average annual precipitations in these periods, and also adjusting the R erosivity factor. In Quebec, these are the two seasons with the highest rainfall intensity. Since erosivity is usually calculated on an annual basis (and I've been cheating to date by using the global erosivity layer by Panagos et al 2017) I was wondering if you have any advice or guidance on how to do this? Or how to potentially use outputs from the Seasonal Water Yield model to do this.
Any suggestions would be much appreciated.