How to get the exact lat lon position of nc file data

Hi Folks

Thanks in advance

I could get the indexed position of the rows and columns of max / index value data with the below code

maxval=max(data(:));

[xmax,ymax]=find(data==maxval);

[ii,jj]=find(data >= 0 & data < 2);

but I need only the exact x and y location coordinates

I have classify the pixel values range according to my requirement as below

idx = data >= 0 & data< 2 ;

pix1 = data(idx);

idx = data >= 2 & data < 4 ;

pix2 = data(idx) ;

idx = iwant >= 4 & iwant < 6 ;

pix3 = data(idx) ;

idx = data >= 6 & data < 8 ;

pix4 = data(idx) ;

idx = data >= 8 & data < 10;

pix5 = data(idx);

idx = data >= 10 & data < 15 ;

pix6 = data(idx) ;

idx = data >= 15 & data < 20 ;

pix7 = data(idx) ;

idx= data >= 20 & data < 95;

pix8 = data(idx);

please find the atached data and lat, lon position

Kindly help