coolingFromNuclearWar {Ecdat}R Documentation

Global cooling from a nuclear war

Description

Average surface temperature changes world wide and in the Northern Hemisphere 3 and 10 years after the injections of 5, 50 and 150 Tg (teragrams = millions of metric tons) of smoke into the upper troposphere, per Robock, Oman, and Stenchikov (2007).

These numbers are relative to the average for 1925-1975, which explains why the numbers are positive with smoke = 0.

Usage

data(coolingFromNuclearWar)

Format

A dataframe containing :

smoke

teragrams = millions of metric tons

dC3g, dC10g, dC3n, dC10n

average change in surface temperature 3 and 10 years after injection of smoke into the upper troposphere globally (g) or in the Northern Hemisphere (n) in degrees Celsius.

Source

Alan Robock, Luke Oman, and Georgiy L. Stenchikov (2007) Nuclear winter revisited with a modern climate model and current nuclear arsenals: Still catastrophic consequences, Journal of Geophysical Research, 112

Examples

data(coolingFromNuclearWar)
matplot(coolingFromNuclearWar[, 'smoke'], 
    coolingFromNuclearWar[, 2:5], type='l')
(linFit <- lm(cbind(dC3g, dC10g, dC3n, dC10n)~smoke, 
      coolingFromNuclearWar))
      
# total change 
dC <- as.matrix(coolingFromNuclearWar[, 2:5] - 
        rep(unlist(coolingFromNuclearWar[1, -1]), e=4))
(linFit0 <- lm(dC~smoke, coolingFromNuclearWar))
summary(linFit0)

[Package Ecdat version 0.3-9 Index]