Anomalies from the monthly mean climatology:

Black: actual temperaturesGreen: climatology

Anomalies

m

depends on the month

Anomalies from the monthly mean climatology:

Black: actual temperaturesGreen: climatology

Anomalies

print(paste(“i=“,i,”, m=“,m, sep=“”))

Note: the results for Albany and Central Park NY are stored in (units for tavg are degree C!)data/USW00014735_tavg_mon_mean_ano.ascdata/USW00094728_tavg_mon_mean_ano.asc

Note: the results for Albany and Central Park NY are stored in (units for tavg are degree C!)data/USW00014735_tavg_mon_mean_ano.ascdata/USW00094728_tavg_mon_mean_ano.asc

class07.ppt (pdf): vector dot-product function

R: scripts/

vectorfunctions.R myfunctions.R climatology.R, plot_climatology.R

climatology.R is an example how to concentrate all user-interactions with the program to a few lines at the top of the program: This makes a program re-usable. Give it a try: change the station name, and the year-range of the calculation for the climatological cycle.

You will find an example at the end, how to write results to a data file.

plot_climatology.R is a program to plotthe results. It shows you how you can read back in the created data file.Note: try these scripts and compare with our previous scripts albany_climatology.R

R: monthly mean temperature data (in degree C) data/ USW00014735_tavg_mon_mean_climc_1951-1980.asc USW00014735_tavg_mon_mean_climc_1981-2010.asc USW00094728_tavg_mon_mean_climc_1901-1930.asc USW00094728_tavg_mon_mean_climc_1951-1980.asc USW00094728_tavg_mon_mean_climc_1981-2010.ascThe anomalies from the climatological cycle (1981-2010) USW00014735_tavg_mon_mean_ano.asc

USW00094728_tavg_mon_mean_ano.asc

R: monthly mean temperature data (in degree C) figures/ USW00014735_tavg_mon_mean_climc_1951-1980.pdf USW00014735_tavg_mon_mean_climc_1981-2010.pdf USW00094728_tavg_mon_mean_climc_1901-1930.pdf USW00094728_tavg_mon_mean_climc_1951-1980.pdf USW00094728_tavg_mon_mean_climc_1981-2010.pdf

1951-1980 1981-2010 1901-1930 1951-1980 1981-2010