How can plot precipitation data with latitude longitude information? I have matrix of precipitation over the time,latitude and longitude all are in 470*160*140 dimensions.

How can plot precipitation data with latitude longitude information? I have matrix of precipitation over the time,latitude and longitude all are in 470*160*140 dimensions.

Thank you in advance!

Answer 1

[KSSV]

Let lon, lat, P be your matrices of size 470*160*140.

[m,n,p] = size(P) ;

for i = 1:p
    pcolor(lon(:,:,i),lat(:,:,i),P(:,:,i)) ; 
    shading interp 
    colorbar
    drawnow 
end

You can also use surf, contour, countourf.

[Nurul Ain Basirah Zakaria]

i get

Unrecognized function or variable 'lon' and 'lat'.

How can I make it works?

[KSSV]

On what name your latitude and longitude are in? I said already that lon, lat should be longitude and latitude respectively.

[Nurul Ain Basirah Zakaria]

Thank you so much Sir! I get the results but it came out with

Index in position 3 exceeds array bounds (must not exceed 1).

I'm new with Matlab.

>> chirps='chirpsMONTH.nc';

>> chirpsms=nc_varget(chirps,'precip');

>> lon=nc_varget(chirps,'longitude');

>> lat=nc_varget(chirps,'latitude');

>> B = permute(chirpsms,[2 3 1]);

>> [m,n,p] = size(B) ;

>> for i = 1:p

pcolor(lon(:,:,i),lat(:,:,i),B(:,:,i)) ;

shading interp

colorbar

drawnow

end

Index in position 3 exceeds array bounds (must not exceed 1).

p/s but the image came out ok.

[KSSV]

Just try this:

[m,n,p] = size(P) ;

for i = 1:p
    pcolor(lon,lat,P(:,:,i)) ; 
    shading interp 
    colorbar
    drawnow 
end

[Nurul Ain Basirah Zakaria]

thank you sir! i can't thank you enough! many thanks to you!

Answer 2

[Ameer Hamza]

For a specific time-value, the you can use several functions, such as contour(), contourf(), mesh(), surf(), pcolor() to plot the information. For example

M; % 470*160*140 matrix
contourf(squeeze(M(1,:,:))); %

[Nurul Ain Basirah Zakaria]

thank you so much sir! It a big help for me!:)