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readGMIA

Source: R/readGMIA.R
readGMIA.Rd

Read Global Irrigation Map

Read the Data from Siebert et.al on Irrigated Areas for each Country. Data contains total valuesas well as values from groundwater, surface water and non convential water sources for the following Categories:

  • Area equipped for Irrigation (AEI)

  • Area acutally irrigated (AAI)

  • Consumption Irrigatoin Water use (ICU)

The following Data is also available spatialy explicit with a resolution of 5 arcmin:

  • AEI in Percent

  • AEI in Ha

  • AAI as percent of AEI

  • AEI from groundwater sources as percent of total AEI

  • AEI from surface water sources as percent of total AEI

  • AEI from non conventional sources as percent of total AEI

There also exists a correct function to aggregate the data to 0.5 degree resolution, set convert="correctonly" to run.

Usage

readGMIA(subtype = NULL)

Arguments

subtype

: Available subtypes are:

  • all_data_national : National Data on AEI (including differentiation by source (Groundwater, Surface water and nonconventional)), AAI

  • aei_pct : AEI in Percent

  • aei_ha : AEI in ha

  • aai_pct_aei : AAI as percentage of AEI

  • aeigw_pct_aei AEI from Groundwater sources as Percentage of total AEI

  • aeisw_pct_aei : AEI from Surface water sources as Percentage of total AEI

  • aeinc_pct_aei : AEI from nonconventional sources as Percentage total AEI

Value

magpie object of the Irrigated Area data

See also

readSource

Author

Stephen Wirth

Examples

if (FALSE) { # \dontrun{
a <- readSource("GlobalIrrigationMap", "all_data_national")
a <- readSource ("GMIA", "aei_pct", convert = FALSE)
a <- readSource ("GMIA", "aei_pct", convert = "correctonly")
} # }