It's hard to say. What I've presented for the most part has been descriptive, what has happened in flow, what has happened in things such as precipitation, snowpack, and temperatures. The model I put together, which ties together climate variables and flow, isn't what would be described as a mechanistic model. It's not something where you absolutely understand the interactions between the different variables and the outcome. It's more a correlative model where I've put together a bunch of variables, created some formulas and a way of putting them together that fairly accurately predicted the outcome. But in terms of what the most critical factor is, it's hard to say.
