formatURL: Format URL for Environmental Data Download

In PAMmisc: Miscellaneous Functions for Passive Acoustic Analysis

Format URL for Environmental Data Download

Description

This creates a properly formatted URL for downloading environmental data either from an ERDDAP or HYCOM server. This URL can be pasted into a browser or submitted to something like httr::GET to actually download the data. Also see edinfoToURL

Usage

formatURL(
  base,
  dataset,
  fileType,
  vars,
  ranges,
  stride = 1,
  style = c("erddap", "hycom")
)

Arguments

base	the base URL to download from
dataset	the specific datased ID to download
fileType	the type of file to download, usually a netcdf
vars	a vector of variables to download
ranges	a list of three vectors specifying the range of data to download, must a list with named vectors Longitude, Latitude, and UTC where each vector is c(min, max) (Note: even if the time is something like "dayOfYear" this should still be called 'UTC' for the purpose of this list). (see dataToRanges).
stride	the stride for all dimensions, a value of 1 gets every data point, 2 gets every other, etc.
style	either 'erddap' or 'hycom'

Value

a properly formatted URL that can be used to download environmental data

Author(s)

Taiki Sakai [e-mail]

Examples

formatURL(
    base = "https://upwell.pfeg.noaa.gov/erddap/griddap/",
    dataset = "jplMURSST41",
    fileType = "nc",
    vars = "analysed_sst",
    ranges = list(
               Latitude = c(30, 31),
               Longitude = c(-118, -117),
               UTC = as.POSIXct(c('2005-01-01 00:00:00', '2005-01-02 00:00:00'), tz='UTC')
             ),
    stride=1,
    style = 'erddap'
)

PAMmisc documentation built on June 22, 2024, 9:37 a.m.