Hello,
I personally havent done it but a co-worker had this 'work around' where she used contour instead of contourm.
The trick is to create an x and y meshgrid from matlab's domain instead of using the lat/lon coordinates that you would normally input in countourm. Here's an example where she did the countours with sea-level pressure:
%%%Code starts
%Find the matlab values of lat and longitudes. Must first create the domain, then go to graph editor and find the corresponding xlim and ylim
x1 = -0.515;
x2 = 0.52;
y1 = 0.358;
y2 = 1.032;
%Create grid data
y_file = linspace(y1,y2,Mj); %Mj and Mi are the number of grid cells in both direction
x_file = linspace(x1,x2,Mi);
[y,x]=meshgrid(y_file,x_file);
%Define pressure range
p_min = 950; % hPa
p_max = 1042; % hPa
dp = 4; % Distance between contours
%Create contour
[C,h]=contour(x,y,fld_p,p_min:dp:p_max,'k','LineWidth',1);
clabel(C,h,'FontSize',12,'FontWeight','bold')
