meteoandes

Mountain meteorological data

注記：meteoandes は R パッケージ insol（Javier G. Corripio 作、CRAN で配布、現行版 1.2.2）に含まれるデータセットである。下記の例を実行するには、あらかじめ insol をインストールして読み込む。

install.packages("insol")
library(insol)

Description

Meteorological data from an automatic weather station in the Central Andes of Chile.

Usage

data(meteoandes)

Format

A data frame with 1152 observations on the following 10 variables.

• year：Year
• doy：Day of the year
• hh：hour
• mm：minute
• Tair：Air temperature, grades centigrade
• pyra1：Incoming solar short-wave radiation Wm^-2
• pyra2：Reflected solar short-wave radiation Wm^-2
• windspeed：Wind speed, ms^-1
• winddir：Wind direction, degrees
• RH：Relative humidity %

Source

Measured by the author on Loma Larga Glacier, -33.6917, -70.0, 4640 m a.s.l. January 2001.

References

Corripio, J. G. and Purves, R. S.: 2005, Surface energy balance of high altitude glaciers in the Central Andes: the effect of snow penitentes, in C. de Jong, D. Collins and R. Ranzi (eds), Climate and Hydrology in Mountain Areas, Wiley, London, chapter 3, pp. 15-27.

Examples

data(meteoandes)
str(meteoandes)
# plot the 2 pyranometers measurements
# one facing up: incident insolation, one facing down: reflected insolation
meteodate = strptime(paste(meteoandes$year,meteoandes$doy,meteoandes$hh,meteoandes$mm),
format="%Y %j %H %M",tz="America/Santiago")
plot(meteodate,meteoandes$pyra1,'l',col=2,xlab='Date',
ylab=expression(paste('Solar radiation [ ',Wm^-2,' ]')),
main='Insolation at Loma Larga glacier')
lines(meteodate,meteoandes$pyra2,col=4)