File:Insolation 65n july berger 90 past future 150000 years 1.svg
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Summary
[edit]DescriptionInsolation 65n july berger 90 past future 150000 years 1.svg |
English: Insolation Of July, 65N. Berger-90 algorithm. |
Date | |
Source | Own work |
Author | Merikanto |
library("palinsol")
library(ggplot2)
library(scales)
data(BER90)
tbegin1=-150000
tend1=150000
tstep1=50
time_ka=vector()
insolation_july_65N=vector()
- insol
- pi/2 for June solstice
- pi for September equinox
- 3 * pi/2 for December solstice
- 0 for Spring equinox
t0=0
orbit0<-ber90(t0,degree=FALSE)
- print(orbit0)
insol0<-Insol(orbit0,long=pi/2, lat=65*pi/180,S0=1365)
for (t1 in seq(tbegin1, tend1, tstep1) )
{
#print(t)
orbit1<-ber90(t1,degree=FALSE)
#print(orbit1)
insol1<-Insol(orbit1,long=pi/2, lat=65*pi/180,S0=1365)
#print(insol1)
insolation_july_65N<-c(insolation_july_65N,insol1)
time_ka<-c(time_ka,t1)
#tilt1<-orbit1["eps"]
}
- print(time_ka)
- print(insolation_july_65N)
insoldata1=data.frame(time_ka, insolation_july_65N)
- plot(time_ka, insolation_july_65N )
-
- plotting
svg(filename="./insolation_65n_july_berger_90_past_future_150000_years_1.svg", width=10, height=5, pointsize=12)
ggplot(insoldata1, aes(x =time_ka , y = insolation_july_65N))+
ggtitle("Insolation of July, latitude 65 N ") +
#ggeasy::easy_center_title()+
xlab("Time, years from present") + ylab("Insolation, 65 N")+
theme_light()+
theme(title=element_text(size=20), axis.text=element_text(size=18,face="bold"),axis.title=element_text(size=20,face="bold"))+
geom_line(color="red", size=2)+
geom_hline(yintercept=insol0, linetype="dashed", color = "darkred", size=1)+
scale_y_continuous(breaks= pretty_breaks(), labels = scales::number_format(accuracy = 1,decimal.mark = '.'))+
scale_x_continuous(labels = scales::comma_format(big.mark = ' ',decimal.mark = '.'))+
theme(plot.title = element_text(hjust = 0.5))
dev.off()
- Sys.getlocale()
print(".")
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 07:38, 21 October 2021 | 900 × 450 (196 KB) | Merikanto (talk | contribs) | Uploaded own work with UploadWizard |
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Height | 360pt |