process_geos: Process atmospheric composition data

In amadeus: Accessing and Analyzing Large-Scale Environmental Data

Process atmospheric composition data

Description

The process_geos() function imports and cleans raw atmospheric composition data, returning a single SpatRaster object.

Usage

process_geos(
  date = c("2018-01-01", "2018-01-10"),
  variable = NULL,
  path = NULL,
  extent = NULL,
  ...
)

Arguments

date	character(1 or 2). Date (1) or start and end dates (2). Format YYYY-MM-DD (ex. September 1, 2023 = "2023-09-01").
variable	character(1). GEOS-CF variable name(s).
path	character(1). Directory with downloaded netCDF (.nc4) files.
extent	numeric(4) or SpatExtent giving the extent of the raster if NULL (default), the entire raster is loaded
...	Placeholders.

Value

a SpatRaster object;

Note

Layer names of the returned SpatRaster object contain the variable, pressure level, date, and hour.

Author(s)

Mitchell Manware

Examples

## NOTE: Example is wrapped in `\dontrun{}` as function requires a large
##       amount of data which is not included in the package.
## Not run: 
geos <- process_geos(
  date = c("2024-01-01", "2024-01-10"),
  variable = "O3",
  path = "./data/aqc_tavg_1hr_g1440x721_v1"
)

## End(Not run)

amadeus documentation built on April 4, 2025, 12:21 a.m.