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Generate SPEI-6 with mean-temporal aggregation compatible with PRIO-GRID

Source: R/data_speibase.R
gen_speibase6_mean.Rd

The function takes monthly SPEIbase data and transforms it to the temporal resolution defined by PRIO-GRID date intervals (which may be quarterly, yearly, or other intervals), while also performing spatial aggregation to the PRIO-GRID resolution.

Usage

gen_speibase6_mean()

Value

A SpatRaster object (from the terra package) with spatio-temporal resolution as defined in PRIO-GRID.

References

Beguería S, Latorre B, Reig F, Vicente-Serrano SM (2024). “SPEIbase v.2.11.” Beguería S, Vicente-Serrano SM, Reig F, Latorre B (2014). “Standardized Precipitation Evapotranspiration Index (SPEI) Revisited: Parameter Fitting, Evapotranspiration Models, Tools, Datasets and Drought Monitoring.” International Journal of Climatology, 34(10), 3001–3023. ISSN 1097-0088, doi:10.1002/joc.3887 , 2018-08-29.

See also

read_speibase for reading and calculating SPEIbase, read_cru_pet for input-data to SPEIbase, read_cru_pre for input-data to SPEIbase, pg_date_intervals for PRIO-GRID temporal boundaries, robust_transformation for spatial aggregation, get_pgfile for file management

Examples

if (FALSE) { # \dontrun{
# SPEI-6 averaged over PRIO-GRID time-interval using the mean.
spei6_mean <- gen_speibase6_mean()
} # }