getCDL_bbox: Get CDL raster data for a bounding box

In jlisic/cdlTools: Tools to Download and Work with USDA Cropscape Data

Get CDL raster data for a bounding box

Description

getCDL_bbox retrieves a CDL raster object within a bounding box for a set of years.

Usage

getCDL_bbox(
  year,
  bbox,
  fileName,
  res,
  crs = "EPSG:5070",
  https = TRUE,
  alternativeUrl,
  ssl.verifypeer = TRUE,
  returnType = "raster"
)

Arguments

year	A numerical vector. A set of years of CDL data to download.
bbox	An array defining a bounding box of length four. Defining the two points that form the box by latitude then longitude, in that order. The furthest north west pair is entered first.
fileName	An optional string indicating where the file should be saved to, default is an R tempfile.
res	An optional array of length two defining the pixel resolution in meters, default is 30m.
crs	An optional string containing the coordinate reference system, default is EPSG:5070 (Albers is EPSG:5070).
https	Legacy https, all traffic uses https, if you need http provide alternative url.
alternativeUrl	An optional string containing an alternative url.
ssl.verifypeer	An optional boolean to turn on and off ssl verfication, default is on.
returnType	An optional parameter to select to return either 'raster' or 'terra' based raster files.

Value

A raster object containing the contents of a bounding box.

Author(s)

Jonathan Lisic, [e-mail]

Jemma Stachelek, [e-mail]

Examples

## Not run: 
# Get data for California in 2020
bbox <- c(130783,2203171,153923,2217961)
resx <- 30 
resy <- 30 
year <- 2020
crs <- 'epsg:102004'
getCDL_bbox(year,bbox,res=c(resx,resy),crs=crs)

## End(Not run)

jlisic/cdlTools documentation built on March 28, 2024, 4:28 a.m.