how to get the values from netcdf to ascii format through matlab?

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Gargi
Gargi 2014-8-13
评论： Gargi 2014-8-15
The data is in .nc form (e.g data.nc). 1) How to extract a grid from this file format? 2) How to find the values of the extracted grid in ascii form?
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Ashish Uthama
Ashish Uthama 2014-8-13
Girija, please say more. Its hard to give a helpful answer since your question does not have enough information. For example - how is the data in the netcdf file structured? Do you have lat /lon and data. Are they 1D 2D or nD? What do you mean by ASCII form? As a variable as a CSV file a text file?
To get started, please have a look at the ncread function.
Gargi
Gargi 2014-8-14
Sir, data is in .nc format (data.nc) (temperature data of two years 1948-1949). Its a global data, ve to extract a grid from that data, and the value should be in ascii (csv ) form. I have to read this data and make a average of January month, February month and so on...of two years.
Sir, this data have longitude, latitude, time, and temperature of one pressure level i.e 1000.

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Chad Greene
Chad Greene 2014-8-13
Check out the names of the variables with ncdisp('data.nc') and if one of the variables is lat, you can load it with
lat = ncread('data.nc','lat');
Then you can write variables to ascii with dlmwrite.
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Chad Greene
Chad Greene 2014-8-13
It is difficult to understand your question. Try to ask a specific question about a specific step that you're having trouble with.

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Supreeth Subbaraya
Supreeth Subbaraya 2014-8-14
Take a look at the function ncread. Here you can specify the indices of the starting location of a variable and the number of elements to be read. If a variavle "var" is a two dimensional variable, then you can use the following line of code:
ncread('data.nc','var',[1, 1], [1,1])

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