how to plot contour of matrix?

Hi all..

the attached plot is showing the time vs. latitude for the sea surface temperature (SST) anomalies (see attachment anom_04).

i wanted to do the same using contour plot but the sizes of the resulted matrices (mishgridded) are giving me errors.

the data sets are:

anomalies of SST 458*289*8

time = 2004 4 3

2004 4 11

2004 4 19

2004 4 27

2004 5 5

2004 5 13

2004 5 21

2004 5 29

latitude = 458*1

Thanks for the help.

[KSSV]

We need to know more about how the data is...attach your data. YOu need to just arrange the data and use contourf.

[Lilya]

Thanks KSSV for the response.

I've attached it.

[KSSV]

YOu don't have time here...you have (lat,lon) and the data. What you want to plot from here?

[Lilya]

sorry again.. I attaced it..

i want to plot the latitude in y-axis, time in x-axis and the anomalies in z-axis (the contour data)

thanks once again for the help sir KSSV

Answer 1

[KSSV]

load('latlonmodis.mat') ;
load('anom_04.mat') ;
load('mtime.mat')

x = longitude ;
y = latitude ;
t = mtime ;
A = anom_04 ;
B = squeeze(nanmean(A,2)) ;
B = B-nanmean(B) ;

d = datetime(datestr(t)) ;
contourf(datenum(d),y,B) ;
datetick('x', 'dd-mm-yyyy','keepticks')

[Lilya]

Thank u so so so so much!