getdata: Download data from an ERDDAP server

In UW-Upwelling-Project/imageryML: Functions for Machine Learning with Oceanographic Imagery

Description

Download data using eserver name

Usage

getdata(
  id,
  pars = NULL,
  lat = c(7, 13),
  lon = c(72, 78),
  date = NULL,
  altitude = 10,
  alt.name = "altitude",
  eserver = "http://apdrc.soest.hawaii.edu/erddap",
  datadir = "data"
)

Arguments

id	The id of the data. Like hawaii_soest_26fe_f2c9_ed3b. In quotes.
pars	Name of the parameter. Like sst, e.g. In quotes.
lat	Min-max latitude
lon	Min-max longitude
date	To specify a date range, pass this in like c("2020-01-01", "2020-02-01"). Leave off to download the whole data range.
altitude	Optional. Some data types need this. Ignore if not. Look on the data page. time, latitude and longitude are always there. If altitude is also there, then put that in.
alt.name	If altitude is present, what is it's name.
eserver	The url to the erddap server
datadir	The folder where to save the data.

Details

Go to the server to see what the pars names are and the format. The names for things are unique and can't be predicted. e.g. http://apdrc.soest.hawaii.edu/erddap/griddap/hawaii_soest_26fe_f2c9_ed3b.html The 2 main servers I use are https://coastwatch.pfeg.noaa.gov/erddap and http://apdrc.soest.hawaii.edu/erddap Search from there to find the data you want.

Common ids on apdrc.soest.hawaii.edu server

• ERA5 1950-1978 hawaii_soest_26fe_f2c9_ed3b

• ERA5 1979-2021 hawaii_soest_d124_2bb9_c935

• NOAA OISST AVHRR daily hawaii_soest_afc8_9785_907e; add 0.125 to lat and lon

• NOAA OISST AVHRR daily 2016+ hawaii_soest_330b_094e_ca45

Value

The function saves a csv file and returns the data list invisibly.

UW-Upwelling-Project/imageryML documentation built on Dec. 18, 2021, 6:11 p.m.