Regarding Data interpolation

I have some global dataset which includes latitude, longitude and CO2 value.
I am planning to plot 2D surface maps for certain area e.g Thailand. So far what I have done is
match=find(latitude<=21 & latitude <=6 & longitude 106,longitude =97);
lat_N=latitude (match);
lon_N=longitude(match);
co2_N=co2(match);
F=TriScatteredInterp(lon_N,lat_N,co2_N);% =TriScatteredInter
lat_Grid=6:0.5:21;
lon_Grid=97:0.5:106;
[xlongrid,ylatgrid]=meshgrid(lon_Grid,lat_Grid);
and then I plotted using sufracem function .
This shows me out put but its not good.
after this I tried griddata function too , but still it does not work.
So is there any one knows how to fix this problem.
Thank you

回答(1 个)

Maybe getting the right data would help, your match variable contains some constraints I don't believe you intended. compare to:
match = find(latitude>=6 & latitude <=20 & longitude >= 97 & longitude <= 106)

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2011-8-12

关闭:

2021-8-20

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