Meteorological Pre-Processing

1 Overview

Before running WaterGAP3, some meteorological inputs may need to be derived from the raw meteorological dataset. This page covers two such pre-processing steps: net longwave radiation and Leaf Area Index (LAI).

library(HydroGalleryCpp)
library(WaterGAP3Cpp)
library(WG3Tools)

path_Root <- "/projects/WaterGAP/WaterGAP3M/ProjectRun/Demo/Data/"

mark_Time <- "1979"

2 Net longwave radiation

Only required if net longwave radiation is not already included in the meteorological dataset.

purrr::map(str_Continent, \(idx_Conti) {
  prepare_nettoLongRadiat(
    idx_Conti, mark_Time,
    path_MeteoInput = paste0(path_Root, "MeteoInput/"),
    path_HydroParam = paste0(path_Root, "HydroParam/")
  )
})

3 Leaf Area Index (LAI)

Simulate LAI for each continent and year before running the main model.

purrr::map(str_Continent, \(idx_Conti) {
  run_WaterGAP3_LAI(
    idx_Conti, mark_Time,
    path_MeteoInput = paste0(path_Root, "MeteoInput/"),
    path_HydroParam = paste0(path_Root, "HydroParam/")
  )
})