If the netCDf4 python module uses numpy underneath, the issue you describe will be related to the one in the attached link.

Short summary: You can change how python allocates space for large arrays by doing

self.data = np.array(rows, dtype=object)

http://stackoverflow.com/questions/21666976/valueerror-array-is-too-big-cannot-understand-how-to-fix-this

Many many thanks Thorsten Reitz. Your  answer helps me to solve my problem. But i face another obstacle in there. The result values are all the same !!! All values are -9.96921e+36 repeatedly. But when i use ArcGIS 10.1 (with Multidimension Toolbox) to extract same data, the values are like 23.75, 28,79, 5.88...... Whats the problem ?!

Hi I've built a tool that extracts data from NetCDF files in Arc. What exactly are you trying to do? The tool I built will run through a folder of NetCDF files and extract the data for a dimension (say temperature) for each time in the NetCDF at a given xy point. You can use it with multiple xy points if you need to (e.g. a feature class point file). Get in touch if you think it would be of use.

I want to extract multiple point data in same time. But, ArcGIS Toolbox does not allow this. For this reason, I want to create a python code. I think, your tool will be helpful to solve my problem. If you help me, I will be grateful.

No problem Manjurul. You can email me at [email protected] or contact me through my website http://www.burdgis.com

It seems my script helped Manjurul out. Attached is a copy of the python script. It will extract information for multiple point locations in a netCDF file. Some values are hardocded and may need changing depending on the nature of the NetCDF file.

Hi

You can extract data easily and covert to another format such as json, text, excel, csv with using Netcdf-Extractor

there is in  http://www.agrimetsoft.com/

best regard