# MATLAB: Plot a precipitation grid, Matlab

interpolant

Hi, I want to plot a precipitation grid across the extent of my DEM.
The data I have are for 8 locations and show 2 things: (i) lat/long; (ii) total precip for each location.
Can you help me use the meshgrid and scatteredinterpolant functions to do this?
Here are the data:
``%Lat     Long      Total Precip (mm)53.2879 -1.57772    102053.406  -1.73752    98153.3642 -1.70167    100253.3362 -1.74618    150053.3147 -1.7017     180753.274  -1.69155    149253.2494 -1.61264    132553.227  -1.609      997``
``% Define the datalat=precip_data(:,1);lon=precip_data(:,2);total_precip=precip_data(:,3);% Do I need to change the lat/long corrdinates to projected UTM?% DEM coordinate system is CT_TransverseMercator / OSGB1936 datum.% How do I create the meshgrid and scatteredInterpolant for each of the 8 data?``

``D = [53.2879 -1.57772    1020    53.406  -1.73752    981    53.3642 -1.70167    1002    53.3362 -1.74618    1500    53.3147 -1.7017     1807    53.274  -1.69155    1492    53.2494 -1.61264    1325    53.227  -1.609      997];N = 20;                                                     % Size Of Interpolation Vectors/MatricesLtv = linspace(min(D(:,1)), max(D(:,1)), N);                % Latitude Vector For InterpolationLnv = linspace(min(D(:,2)), max(D(:,2)), N);                % Longitude Vector For Interpolation[Ltm,Lnm] = ndgrid(Ltv, Lnv);                               % Matrices For InterpolationPm = griddata(D(:,1), D(:,2), D(:,3), Ltm, Lnm);            % Interpolatefiguresurf(Ltm, Lnm, Pm)grid onview(40,40)xlabel('Latitude')ylabel('Longitude')zlabel('Precipitation (Interpolated)')``