readGMIA: readGMIA

In pik-piam/mrvalidation: madrat data preparation for validation purposes

readGMIA

Description

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

Author(s)

Stephen Wirth

See Also

readSource

Examples

## Not run: 
a <- readSource("GlobalIrrigationMap", "all_data_national")
a <- readSource ("GMIA", "aei_pct", convert = FALSE)
a <- readSource ("GMIA", "aei_pct", convert = "correctonly")

## End(Not run)

pik-piam/mrvalidation documentation built on April 26, 2024, 12:12 a.m.