xtracto_3D: Extract environmental data in a 3-D bounding box using...

In xtractomatic: Accessing Environmental Data from ERD's ERDDAP Server

Description

xtracto_3D uses the ERD ERDDAP data web service to extact environmental data in a given longitude, latitude and time bounding box

Usage

xtracto_3D(dtype, xpos, ypos, tpos = NA, verbose = FALSE)

Arguments

dtype	- number or string identifying the ERDDAP parameter to extract
xpos	- 2-element array giving min and max longitude (in decimal degrees East, either 0-360 or -180 to 180)
ypos	- 2-element array giving min and max latitude (in decimal degrees N; -90 to 90)
tpos	- 2-element array giving min and max time (specify both minimum and maximum dates). For the last available time, use "last". Default NA.
verbose	- logical for verbose download output, default FALSE

Value

structure with data and dimensions:

• extract$data - the data array dimensions (lon,lat,time)

• extract$varname - the name of the parameter extracted

• extract$datasetname - ERDDAP dataset name

• extract$longitude - the longitudes on some scale as request

• extract$latitude - the latitudes always going south to north

• extract$time - the times of the extracts

Examples

xpos <- c(-130., -125.)
ypos <- c(30., 35.)
tpos <- c('2015-01-16', '2015-02-16')
extract <- xtracto_3D('mhsstdmday', xpos, ypos, tpos = tpos)

xpos <- c(230, 231)
ypos <- c(40, 41)
tpos <- c('2006-05-05', '2006-05-06')
extract <- xtracto_3D('erdMBsstd8day', xpos, ypos, tpos = tpos, verbose=TRUE)

xtractomatic documentation built on May 2, 2019, 8:54 a.m.