how to remove a particular season values from monthly time series?

Hello everyone,

I have monthly temperature data for 20years (360x720x240) where 360x720 is latitude x longitude. From this monthly time series, I want to remove the winter season (December, January, Fabruary months), so the final outcome will be 360 x 720 x 180 (9month timeseries for 20 years)

How can remove these three months from every year?

Thanks.

Answer 1

[Dyuman Joshi]

Assuming the data is stored as a double array and the season data is month wise i.e Jan-Feb-...-Nov-Dec

y = rand(360,720,240);
size(y)

ans = 1×3

360 720 240

%Delete the values corresponding to winter months
y(:,:,[1:12:end 2:12:end 12:12:end])=[];
size(y)

ans = 1×3

360 720 180

[Aarti Soni]

Thanks @Dyuman Joshi

[Dyuman Joshi]

You are welcome!

Answer 2

[KSSV]

thedates = (datetime(2003,1,1):days(30):datetime(2023,12,31))' ; 
idx = thedates.Month == 1 | thedates.Month == 2 | thedates.Month == 12 ; 
iwant = thedates(~idx) ;