Rank Raw Environmental Exposure — rank

Converts raw exposure from calculate_raw_exposure to a rank between 1-4 based on thresholds used in CVA1.0. This function also flips variables as needed such that positive exposure is always negative (i.e. both increasing temperature and decreasing oxygen concentrations result in positive exposure).

Usage

rank_exposure(
  exposure,
  flip = T,
  no_flip_vars = c("bottomT", "surfaceT", "bottomArg", "MLD")
)

Arguments

exposure: output from calculate_raw_exposure
flip: TRUE/FALSE option to multiply exposure by -1 to ensure that positive exposure values represent negative variable change (increasing temperatures, decreasing oxygen concentrations, etc).
no_flip_vars: character vector naming which vectors should NOT be flipped - counterintuitive, yes, but this list was actually shorter than the variables that needed to be flipped for NECVA2.0. Names should match the names in exposure

Value

A list of rasterStacks with each layer containing ranked values between 1 - 4. The length of the list is equal to the length of the lists supplied as exposure