findGHCN returns a SpatailPointsDataframe of all Global Historical Climatology Network (GHCN) stations within an AOI. Data comes from the NOAA and includes the following attributes:

  • 'ID' : character Station ID

  • 'NAME' : character Station Name

  • 'LAT': numeric Latitude, decimal degrees

  • 'LON' : numeric Longitude, decimal degrees

  • 'PARAMETER' : character Observed parameter

  • 'START_YEAR' : integer Year of first observation

  • 'END_YEAR' : integer Year of last observation

findGHCN(AOI = NULL, param = NULL, ids = FALSE)

Arguments

AOI

A Spatial* or simple features geometry, can be piped from getAOI

param

Returned results can be filtered by a requested parameter valid parameters can be found calling unique(ghcn_stations$PARAMETER)

ids

If TRUE, a vector of station IDs is added to retuned list (default = FALSE)

Value

a list() of minimum length 2: AOI and ghcn

Examples

# NOT RUN {
# Get all stations and parameters
sta = getAOI(state = "CO", county = "El Paso") %>% findGHCN()

#Limit call to precipiation gages
prcp.sta = getAOI(state = "CO", county = "El Paso") %>% findGHCN(param = 'PRCP')

# }