nearest_stations: Find Nearest GSOD Stations to a Specified Latitude and...

Description Usage Arguments Value Note Author(s) Examples

View source: R/nearest_stations.R

Description

Given latitude and longitude values entered as decimal degrees (DD), this function returns a list (atomic vector) of STNID values, which can be used in get_GSOD to query for specific stations as an argument in the station parameter of that function.

Usage

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nearest_stations(LAT, LON, distance)

Arguments

LAT

Latitude expressed as decimal degrees (DD) [WGS84]

LON

Longitude expressed as decimal degrees (DD) [WGS84]

distance

Distance in kilometres from point for which stations are to be returned.

Value

vector object of station identification numbers

Note

The GSOD data, which are downloaded and manipulated by this R package, stipulate that the following notice should be given. “The following data and products may have conditions placed on their international commercial use. They can be used within the U.S. or for non-commercial international activities without restriction. The non-U.S. data cannot be redistributed for commercial purposes. Re-distribution of these data by others must provide this same notification.”

Author(s)

Adam H Sparks, [email protected]

Examples

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## Not run: 
# Find stations within a 100km radius of Toowoomba, QLD, AUS

n <- nearest_stations(LAT = -27.5598, LON = 151.9507, distance = 100)

## End(Not run)

Example output

GSOD is distributed free by the US NCEI with the
following conditions.
'The following data and products may have conditions placed
their international commercial use. They can be used within
the U.S. or for non-commercial international activities
without restriction. The non-U.S. data cannot be
redistributed for commercial purposes. Re-distribution of
these data by others must provide this same notification.
WMO Resolution 40. NOAA Policy'

GSODR documentation built on June 16, 2018, 1:38 p.m.