getAVHRR: Find and download AVHRR NDVI Climate Data Record (CDR)

In ani-ghosh/luna_dev: Satellite Remote Sensing (Earth Observation) data analysis

Description

Find and download AVHRR NDVI CDR for a time period. The function returned is list of filenames that may have been downloaded.

Usage

  getAVHRR(start_date, end_date, path = "", overwrite = FALSE, update = FALSE, ...)

Arguments

start_date	character. Start date for the data requested formatted yyyy-m-d
end_date	Character. end date for the data requested formatted yyyy-m-d
overwrite	logical. If TRUE, existing data will be overwritten
path	character. Path name indicating where to store the data
update	logical. If TRUE, existing records of AVHRR NDVI CDR will be updated
...	Additional arguments that can be passed to download.file)

Details

Files may not be available during server downtime.

Value

character vector of file names pointing to the downloaded files

Examples

  
  sdate <- "2019-05-17" 
  edate <- "2019-05-23"
  dir <- tempdir()
  ff <- getAVHRR(start_date, end_date, dir)

ani-ghosh/luna_dev documentation built on Nov. 18, 2019, 12:02 a.m.