read.ahccd: Read AHCCD data
In clayton33/csasMarPhys: DFO Maritimes Physical Oceanography CSAS analysis

read.ahccd

R Documentation

Read AHCCD data

Description

Read Adjusted and Homogenized Canadian Climate Data files. Data can be downloaded from the ftp site at ftp://ccrp.tor.ec.gc.ca/pub/AHCCD/ . It is required that the data file be downloaded along with the associated stations excel file. For example, if the 'Adj_monthly_rain.zip' file is downloaded, then the 'Precipitation_Stations.xls' file should also be downloaded whether it be using download.file(), or manually from the site.

Flag description from 'Temperature_Documentation.doc', which is on the ftp site, last downloaded : 20190723, M = missing value, E = estimated during archiving process, a = value has been adjusted due to homogeneity and no flag indicates original unaltered value.

Usage

read.ahccd(file, longitude = NULL, latitude = NULL, elevation = NULL)

Arguments

`file`	a connection or a character string giving the name of the file to load.
`longitude`	optional numerical value containing longitude in decimal degrees, positive in the eastern hemisphere.
`latitude`	optional numerical value containing the latitude in decimal degrees, positive in the northern hemisphere.
`elevation`	optional numerical value containing the elevation of the station in meters.