entity.components: Irrigation Entity Components

In USGS-R/wrv: Wood River Valley Groundwater-Flow Model

Description

Irrigation entities and their components in the Wood River Valley and surrounding areas. An irrigation entity is defined as an area served by a group of surface-water and/or groundwater diversion(s).

Usage

entity.components

Format

An object of list class with components of SpatialPolygonsDataFrame-class. There are a total of 192 components, one for each month in the 1995–2010 time period. Linked data.frame objects have the following variables:

EntitySrce

concatenation of the EntityName and Source character strings.

mean.et

mean evapotranspiration (ET) on irrigated and semi-irrigated lands in meters.

area

area of irrigated and semi-irrigated lands in square meters.

PrecipZone

name of the precipitation zone; see precip.zones dataset for details.

et.vol

volume of ET on irrigated and semi-irrigated lands in cubic meters.

precip.vol

volume of precipitation on irrigated and semi-irrigated lands in cubic meters.

cir.vol

volume of crop irrigation requirement in cubic meters (ET minus precipitation).

EntityName

name of the irrigation entity.

Source

water source, either “Mixed” for a mixture of surface water and groundwater, “SW Only” for surface water only, or “GW Only” for groundwater only.

Source

Calculated from the irr.entities, wetlands, public.parcels, irr.lands.year, et, and precipitation datasets; see the ‘package-datasets’ vignette for the R code used in this calculation.

Examples

names(entity.components)
sp::plot(entity.components[["199506"]])
print(entity.components[["199506"]])

USGS-R/wrv documentation built on June 30, 2020, 11:07 p.m.