WT9397: World Average Winter Temperature from 1993-1997

In sspline: Smoothing Splines on the Sphere

Description

The WT9397 data frame has 1391 rows and 4 columns. It contains the average temperature from 1993 to 1997 for those stations having non-missing observations on the winter (Dec-Feb) for ten years (1963-1967 and 1993-1997).

Usage

WT9397

Format

This data frame contains the following columns:

recid

a numeric vector containing the coded information of the stations (length 11). The first three digits represent the country code; the next five digits, the station number; the last three digits, whether a station is a WMO staion or close to one.

lon

a numeric vector containing the longitudes (in degrees) of the stations.

lat

a numeric vector containing the latitudes (in degrees) of the stations.

avgt

a numeric vector containing the average temperatures for the stations (rounded to the second decimal point).

Source

The Global Historical Climatology Network (GHCN)
http://www.ncdc.noaa.gov/cgi-bin/res40.pl?page=ghcn.html

Examples

## Fit a smoothing spherical spline with part of the data
subdat <- WT9397[sample(nrow(WT9397), 200), 2:4]
attach(subdat)

smooth.sspline(lon, lat, avgt)

detach(subdat)

sspline documentation built on May 2, 2019, 2:17 a.m.