Get observation variable names
Examples
aeme_file <- system.file("extdata/aeme.rds", package = "AEME")
aeme <- readRDS(aeme_file)
list_obs_vars(aeme)
#> Cyanobacteria Dissolved oxygen Salinity Secchi disk depth
#> "PHY_cyano" "CHM_oxy" "CHM_salt" "RAD_secchi"
#> Water temperature Total chlorophyll a Dissolved organic C Phosphate
#> "HYD_temp" "PHY_tchla" "CAR_doc" "PHS_frp"
#> Ammoniacal nitrogen Nitrate Total nitrogen Total phosphorus
#> "NIT_amm" "NIT_nit" "NIT_tn" "PHS_tp"
#> Water level
#> "LKE_lvlwtr"
