opening 5D netcdf array

Hello all,

So i have this netcdf file that is a 5D array (longitude,latitude,level, bin, time). I was using ncread to open the 5D array but i have a specific long and lat where i want to extract a 3D array (level, bin, time).....displaying it as (level,time) as y and x and bin as z.

I`d be happy to further clarify the question.

%filename
source='C:/Users/Output_20150501.nc'
%no. of vertical levels
ltop = 30
%no. of bins
nbins=40
%reading the variables
lat=ncread(source,'latitude');
lon=ncread(source,'longitude');
t=ncread(source,'time');

%Enter station details
la =80.054;
lo = -86.417;
stn = 'PL_May';

%find the index for the values of la and lo 
% [minValue,closestIndex]
[~,I]=min(abs(lat-la));
[~,I2]=min(abs(lon-lo));  % these two lines are to find the index of the closest values to the specified lon and lat...let me know if there is a better way

%%
%reading the variables
aeroNum = ncread(source,'aNum');
a=aNum(lo,la,:,:,:) %this line didn`t work - i get another 5D array